1.Which of the option figures bears the closest resemblance to the question figure?
A. C
B. D
C. A
D. B
Solutions
Here, only in ‘option figure B’ the position of star (inside triangle), small square (beside head vertex) and triangle (isosceles triangle) and square touching the circumference of the circle are oriented as in the question figure and closely resembles it.
Hence, “figure B” is the correct answer.
2.Who among the following has been conferred the National Kalidas Samman award in 2018?
A. Anjolie Ela Menon
B. Girish Karnad
C. Mallika Sarabhai
D. Shabana Azmi
Solutions
- Noted artist Anjolie Ela Menon received the National Kalidas Samman award 2018 for visual arts from the Madhya Pradesh government.
- The award was conferred in recognition of her insightful and sensitive portrayal of the identity and spirit of women through her meaningful paintings in a variety of media.
- Menon is India’s most accomplished artist and is the recipient of the Padma Shri.
- Kalidas Samman was established in the year 1980-81. In this award, Rs. 2,00,000 and a citation is presented in the fields of classical music, classical dance, theatre, and visual art.
- It is a prestigious award presented annually by the government of Madhya Pradesh.
- The award is named after Kalidasa, a writer of ancient history.
3. The chemical formula of Iron (III) oxide is _________.
A. FeO
B. Fe3O4
C. Fe3O3
D. Fe2O3
Solutions
- The chemical formula of Iron (III) oxide is Fe2O3
- Iron is extracted from iron ore in a huge container called a blast furnace. Iron ores such as haematite contain iron(III) oxide, Fe2O3.
- FeO is also oxide of iron known as Iron(II) oxide or Ferrous oxide. FeO in the mineral form is known as a wustite
- Fe3O4 is the chemical formula of Magnetite, Magnetite is a mineral and one of the main iron ores of iron.
4. Find the odd man out: Si, P, Ge, and As,
A. Si
B. As
C. P
D. Ge
Solutions
- The three elements other than Phosphorus (P) i.e Silicon (Si), Arsenic (As), and Germanium (Ge) are Metalloids while Phosphorus (P) is a non-metal
- A metalloid is a chemical element with properties that are intermediate between those of metals and nonmetals.
- In the modern periodic table, metalloids occur along a diagonal line from boron to polonium.
- Metalloids are least in number, they include B, Si, Ge, As, Sb, Te, Po, At.
5. The sum of the first 2007 terms of the sequence 1, 2, 3, 4, 1, 2, 3, 4, _______ is:
A. 5013
B. 5016
C. 5020
D. 5107
Solutions
Here, we have repeated series of the first 4 terms i.e. 1,2,3,4 and the sum becomes 10
⇒ Total number of such repeated series = 2004/4 = 501
⇒ Sum of the first 2004 terms = 501 × 10 = 5010
∴ Sum of the first 2007 terms = 5010 + 1 + 2 + 3 = 5016
Important Point
In this question, We have to find the sum of 1, 2, 3, 4, 1, 2, 3, 4… at 2007-terms. At 2004-terms all four terms (1, 2, 3 and 4) repeat continuously but after 2004 only 1, 2, and 3 occurs for completing 2007 terms. therefore first we have to find the sum of 2004 terms and after we added sum of 1, 2 and 3 in the sum of 2004 terms.
6.Rs. 1,125 invested for 3 months gave an interest of Rs. 27. What was the simple rate of interest per annum?
A. 12%
B. 9.6%
C. 7.2%
D. 2.4%
Solutions
Given:
Principal = Rs 1125
Time = 3 months
Interest = Rs 27
Concept used:
Simple Interest = (Principal × rate of interest × time)/100
Calculation:
Time in years = 3/12
⇒ 27 = (1125 × R × 3)/1200
⇒ R = 9.6%
∴ The rate of interest was 9.6% per annum
7. Which union ministry has launched a nation-wide training programme for Elected Women Representatives (EWRs) of Panchayats?
A. Ministry of Panchayati Raj
B. Ministry of External Affairs
C. Ministry of Women and Child Development
D. Ministry of Culture
Solutions
- The Ministry of Women and Child Development in collaboration with the Ministry of Panchayati Raj launched a nation-wide training program for Elected Women Representatives (EWRs) of Panchayats.
- The training program will empower the EWRs of panchayats by magnifying their ability, capacity, and skills in governance and administration of villages.
- This program will also help the women in the daily functioning of Panchayats and will also provide knowledge about the various laws and rights for women in the Indian constitution.
8. Find the odd one out.
A. C
B. D
C. A
D. B
Solutions
Here, every symbol except ‘symbol D’ is a mathematical operation symbol, where as figure D is a double quotation mark.
Hence, “D” is the correct answer.
9. Where is ‘The Gateway of India’ located?
A. Chennai
B. Jaipur
C. New Delhi
D. Mumbai
Solutions
- The Gateway of India is located in Mumbai, Maharashtra
- Gateway of India was built by the British government. It was designed by George Wittet. He was a Scottish Architect and was asked to design a Gateway in order to commemorate the visit of King George V and Queen Mary, prior to the Delhi Durbar, in December 1911
10. A mobile when sold at a gain of 6% yields Rs. 870 more than when it is sold at a loss of 6%. What is the cost price of the mobile phone?
A. Rs. 7250
B. Rs. 6265
C. Rs. 6000
D. Rs. 7000
Solutions
Let the cost price of phone be x.
According to the question
1.06x – 0.94x = Rs. 870
⇒ 0.12x = 870
⇒ x = Rs. 7250
∴ The cost price of phone is Rs. 7250
11. A 1.5 m tall boy observes a pole. The angle of elevation of the top of the pole is 30° from the eyes of the boy. Then he approaches the pole by 7.3 m. Now the angle of elevation is 45°. Find the height of the pole from the ground.
Take √3 = 1.73
A. 8.5 m
B. 11.5 m
C. 10 m
D. 11 m
Solutions
Let the height of the pole be x m and the distance of the boy from the pole be y m.
According to the question
tan 30° = (x – 1.5)/y
⇒ y/√3 = x – 1.5
⇒ y/1.73 = x – 1.5
⇒ x = y/1.73 + 1.5 —-(1)
⇒ tan 45° = (x – 1.5) / (y – 7.3)
⇒ y – 7.3 = x – 1.5
⇒ y – 5.8 = x —-(2)
Put value of x from (1), in (2)
⇒ y – 5.8 = y/1.73 + 1.5
⇒ 0.42y = 7.3
⇒ y = 17.3 m
∴ x = 17.3 – 5.8 = 11.5 m
12. According to Whittaker’s classification, organisms belonging to the kingdom ________ do not have a well-defined nucleus.
A. Protista
B. Fungi
C. Monera
D. Plantae
Solutions
- Monera are single-celled organisms with no true nuclear membrane.
- It is a kingdom that contained unicellular organisms with a prokaryotic cell organization having no nuclear membrane and vacuoles but having a rigid cell wall, reproducing through binary fission. Example: bacteria.
- R.H. Whittaker was the first to propose the five-kingdom classification of the world’s flora and fauna into the Animalia, Plantae, Fungi, Protista, and Monera in 1969.
13. Which of the following correctly represents the relationship between
A. Car
B. Park
C. Satellite
A. 
B. 
C. 
D. 
Solutions
As we know that there is no relation between car, park and satellite.So the best possible venn diagram is as follows,
Hence, “figure 3” is the correct answer.
14. A current of 0.5 A is maintained in a resistor of 10 Ω. The amount of charge flowing throwing the resistor in one minute is:
A. 30 C
B. 5 C
C. 0.5 C
D. 20 C
Solutions
Resistance given here is Irrelevant
As Current, I = 0.5 A
time, t = 1 minute = 1 × 60 = 60 seconds
let the total charge flown = Q
→ We know that Q = I × t
Where Q = charge in Coulombs
I = Current flowing in Ampere
t = time duration in seconds
→ So now Q = 0.5 × 60
Q = 30 A sec or Coulombs
15. The time taken for the tail end of a train to cross a pole is 53 seconds. If the length of the train is 110 m and speed of the train is 36 km/hr, find the initial distance of the pole from the front end of the train.
A. 420 m
B. 530 m
C. 640 m
D. 1798 m
Solutions
⇒ Speed = Distance/time
⇒ Speed of train = 36 × (5/18) = 10m/s
⇒ Distance covered in 53 seconds = 10 × 53 = 530 m
⇒ Length of train = 110m
∴ The initial distance of the pole from the front end of the train = 530 – 110 = 420 m.
16. Find the 13/16 worth of land whose 9/7 worth be Rs. 10116.
A. Rs. 6391.75
B. Rs. 6394.75
C. Rs. 6392.75
D. Rs. 6302.75
Solutions
Let the total worth of land is Rs. X
⇒ Given, 9x/7 = 10116
⇒ So, x = 7868
∴ 13/16 of 7868 = Rs. 6392.75
17. Shaan’s current age is four years less than 1.6 times that of Uddalak’s. 26 years ago, Uddalak’s age was one year less than half of Shaan’s age. What is Shaan’s present age in years?
A. 84
B. 76
C. 68
D. 60
Solutions
Let the current age of Shaan be x years and of Uddalak be y years
⇒ Given, x = 1.6y – 4 —-(1)
26 years ago,
⇒ y – 26 = 0.5(x – 26) – 1 —-(2)
Put value of equation (1) in (2)
⇒ y – 26 = 0.5(1.6y – 30) – 1
⇒ y – 26 = 0.8y – 16
⇒ y = 50 years
⇒ x = 76 years
∴ Shaan’s present age is 76 years.
18. The mega event Global Entrepreneurship Summit (GES-2017) in Hyderabad was co-hosted by NITI Aayog. What is the full form of NITI?
A. National Institute of Teaching India
B. National Institution for Transforming India
C. National India Transforming Information
D. National Institution Towards India
Solutions
- National Institution for Transforming India (NITI Aayog), is a Government of India policy think-tank established by the BJP government to replace the Planning Commission.
- Shri Arvind Panagariya was first Vice-Chairman of Niti Aayog
- The Chairman of NITI Ayog is the Prime Minister of India. He has the first right to preside over its meetings. Vice-Chairman presides over the NITI Ayog in PM’s absence.
- Amitabh Kant is the current CEO of Niti Ayog
19. If “LAME” is coded as JYKC, how “MINE” would be written in this code?
A. KGLC
B. KHGC
C. KLGC
D. KJGC
Solutions
The pattern followed here is as follows,
Hence, “KGLC” is the correct answer.
20. If an electric iron rated 1000W is operated for 3 hours/day, final the total energy consumed in 30 days in Kwh.
A. 90000 Kwh
B. 9000 Kwh
C. 90 Kwh
D. 900 Kwh
Solutions
Given data
⇒ Rated value of the electric lamp (P) = 1000 watts
⇒ Amount of time the iron is being used = 3 × 30 = 90 hours
⇒ t = 90 h
We know that, Power(P) = E/t
Where ‘P’ is power in watts and ‘E’ is energy consumed in watt-hours and ‘t’ is time.
Substituting the values in the above equation, we get
1000 = E/90
E = 90000 Watt-Hours
E = 90 kWh or units. (1 Kilo Watt Hour = 1 unit)
Hence, the energy consumed by the lamp in 30 days (E) = 90 kWh
21. 70 ÷ 5 × (10 – 8 ÷ 2) ÷ 3 = ?
A. 28
B. 3
C. 1/3
D. 7
Solutions
Using BODMAS rule,
⇒ 70 ÷ 5 × (10 – 8 ÷ 2) ÷ 3
⇒ 14 × (10 – 4) ÷ 3
∴ 14 × 2 = 28
22. Frictional force acts __________.
A. Against the direction of the force
B. At any angle to the direction of the force
C. In the direction of the force
D. Perpendicular to the direction of the force
Solutions
- The force of friction always acts in a direction opposite to that in which the body tends to move, means against the direction of the force.
- Till the limiting value is reached, the magnitude of friction is exactly equal to the force which tends to move the body.
- The magnitude of the limiting friction bears a constant ratio to the normal reaction between the two surfaces.
- The force of friction depends upon the roughness/smoothness of the surfaces.
- The force of friction is independent of the area of contact between the two surfaces.
23. Can you tell which argument is strong?
Statement:
Should government take priority in linking rivers?
Arguments:
I. Yes, in the long run this will entirely eradicate water shortages in remote areas.
II. No, we shouldn’t contaminate water and the rivers will naturally take its course.
A. Both I and II are strong
B. Only argument II is strong
C. Neither I nor II is strong.
D. Only argument I is strong.
Solutions
The statement is talking about linking the rivers. The argument I claims that linking the rivers will lead to complete “eradication of water shortage in remote areas”. The statement does not consist of any facts or figures to support this argument. Hence, argument I is not strong.
Argument II is talking about “river contamination” which is not mentioned in the statement at all. Hence, neither argument I nor argument II is strong.
24. The elements with atomic numbers 35, 53 and 85 are _________.
A. noble gases
B. halides
C. alkaline
D. halogens
Solutions
- The Halogens are the elements belonging to Group 17 in the periodic table.
| Element Name | Symbol | Atomic Number |
| Fluorine | F | 9 |
| Chlorine | Cl | 17 |
| Bromine | Br | 35 |
| Iodine | I | 53 |
| Astatine | At | 85 |
25. Find the number of squares in the following figure.
A. 18
B. 16
C. 17
D. 19
Solution
We count the squares as follows,
Hence, there are “17” squares in the given figure.
26. Find the odd one out.
A. D
B. B
C. A
D. C
Solutions
Here, every letter is written with its positional value as per the English alphabetical order, except I10. Since, ‘10’ is positional value for ‘J’.
Hence, “I10” is the correct answer.
27. If the perimeter of a circular plot is equal to the perimeter of a square plot, then the ratio of their respective areas is:
A. 6 : 11
B. 7 : 11
C. 12 : 11
D. 14 : 11
Solutions
Given:
2πr = 4 a
Concept used:
Perimeter of circle = 2πr
⇒ Perimeter of square = 4a
Calculation:
2πr = 4 a
a = 2πr/4 = πr/2
⇒ Area of circle = πr2
⇒ Area of square = a2
The ratio of their respective area = πr2/a2
The ratio = πr2 ∶ (πr/2)2 = πr2 ∶ π2 r2/4
The ratio = 1 ∶ π/4 = 1 ∶ 22/(7 × 4) = 14 : 11
∴ The ratio of their respective area is 14 : 11.
28. The largest wind energy plant in Kanyakumari generates _______ MW of electricity.
A. 1500
B. 1600
C. 2000
D. 1000
Solutions
The state’s wind turbines have a total installed capacity of 7.9 gigawatt which makes it a world leader in renewable energy.
This windfarm situated in the Kanyakumari district of Tamil Nadu has a capacity of generating 1500 megawatt of power.
29. The mass number of an isotope of an element is 298. If its nucleus has 189 neutrons, what is its atomic number?
A. 487.0
B. 189.0
C. 109.0
D. 298.0
Solutions
- The Mass number is always equal to the sum of the number of protons and the number of neutrons. The mass number determines the Atomic mass of an atom, Mass Number is denoted by A
- The Atomic number of an element is the number of protons present in the nucleus of an atom, Atomic Number is denoted by Z.
Atomic Number = Number of Protons
Mass Number = Number of Protons + Number of Neutrons
- Here, Mass Number = 298
Number of Protons + Number of Neutrons = 298
Number of Protons = 298 – 189 = 109
Hence, Atomic Number = 109 [As, Atomic Number = Number of Protons]
Isotopes are defined as elements with the same number of protons but a different number of neutrons present in their nucleus. As the electrons remain the same, so their chemical properties don’t change however due to change in neutron number their atomic mass is changed which results in different physical properties like melting, colour, etc.
30. In a ΔABC, points D and E are lying on AB and AC, respectively. DE is also parallel to the base BC. O is the intersection of BE and CD. If AD : DB = 4 : 3 find the ratio of DO to DC.
A. 5 : 7
B. 4 : 11
C. 5 : 12
D. 3 : 7
Solutions
31. Three flood gates A, B and C can fill a reservoir in 6 hours. After working at it together for 2 hours, flood gate C is closed. Flood gates A and B can fill the remaining part in 7 hours. The number of hours taken by flood gate C alone to fill the reservoir is:
A. 16
B. 10
C. 14
D. 12
Solutions
Reservoir filled in 1 hour by flood gates A, B and C together = 1/6
⇒ Reservoir filled in 2 hours by all gates = 1/3
⇒ Reservoir left to be filled = 1 – 1/3 = 2/3
⇒ Reservoir filled in 1 hour by flood gates A and B = 2/21
⇒ Reservoir filled in 1 hour by gate C = 1/6 – 2/21 = 3/42
∴ Flood gate C alone filled the reservoir in 14 hours.
32. Ace Indian cueist __________ won the 2017 IBSF World Billiards Championship held at Doha.
A. Ashok Shandilya
B. Subhash Agarwal
C. Geet Sethi
D. Pankaj Advani
Solutions
He is the winner of the maximum number of world titles in any sport by an Indian
Indian cueist Pankaj Advani won his 17th world title at the IBSF World Billiards Championship 2017 in Doha, Qatar.
Pankaj beat Mike Russell of England by 6-2 (and won his 17th world title at the IBSF World Billiards Championship 2017.
33. Who among the following has been appointed the Chef de Mission of the Indian contingent for the Asian Games 2018?
A. Ramkishore Singh
B. Rajeev Mehta
C. Brij Bhushan Sharan Singh
D. Digvijay Singh
Solutions
Brij Bhushan Sharan Singh was appointed the Chef de Mission of the Indian contingent for the Asian Games 2018.
He is the president of Wrestling Federation of India (WFI).
The 2018 Asian Games took place from August 18 to September 2 in 2018 and were held in cities of Jakarta and Palembang in Indonesia.
Javelin throwing star Neeraj Chopra was India’s flag bearer in the opening ceremony of the Asian Games 2018.
By winning 69 Medals in the Asian Games 2018 which includes 15 Gold, 24 Silver, and 30 Bronze Medals India ranked 8th in the medal tally of the Asian Games 2018.
34. Odometer is an instrument used to measure:
A. Direction
B. Distance
C. Odour
D. Speed
Solutions
An Odometer is an instrument that indicates distance traveled by a vehicle, such as a motorcycle and motor vehicle automobile
The device may be electronic, mechanical, or a combination of both
It is also called as a trip meter in case of short trips of every ride
The distance mentioned in the odometer generally is in km
35. What is the horizontal mirror image of REST?
A. B
B. D
C. A
D. C
Solutions
The horizontal mirror image of REST is as shown in the below figure:
Hence, “option figure C” is the correct answer.
36. Choose the mirror for the following figure when the mirror is kept at the MN line.
A. D
B. B
C. C
D. A
Solutions
The mirror image of the given figure is as shown in the following figure,
Hence, “option figure B” is the correct answer.
37. Find the odd one out.
A. A
B. C
C. B
D. D
Solutions
Here, in every figure, a dotted rectangular figure is enclosed except in option figure C which enclosed a circular figure.
Hence, “option C” is the correct answer.
38. The hydrochloric acid secreted by the gastric glands facilitates the action of the enzyme _________.
A. Amylase
B. Trypsin
C. Lipase
D. Pepsin
Solutions
The hydrochloric acid secreted by the gastric glands facilitates the action pepsin.
Pepsin is an enzyme found in the gastric juice that digests proteins.
Pepsin was found by German physiologist Theodor Schwann.
Pepsin affects only partial degradation of proteins into smaller units called peptides which are absorbed by the intestines or broken down further by the pancreatic enzymes.
39. If ‘+’ means ‘-’, ‘-’ means ‘×’, ‘÷’ means ‘+’ and ‘× ‘means ‘÷’, then what is the value of(23 – 4 + 15 × 3 ÷ 10)?
A. 110
B. 95
C. 97
D. 100
Solutions
| Symbol | + | – | × | ÷ |
| Meaning | – | × | ÷ | + |
Given expression: 23 – 4 + 15 × 3 ÷ 10
After changing the symbols:23 × 4 – 15 ÷ 3 + 10
= 23 × 4 – 5 + 10
= 92 – 5 + 10
= 97
Hence, “97” is the correct answer.
40. If TEEN is written as 205514, then what is the code for ENTER?
A. 51420518
B. 51520618
C. 51420618
D. 51520518
Solutions
The pattern followed here is as follows,
The letters are coded as per their alphabetical values:
Hence, “51420518” is the correct answer.
41. When a bullet is fired from a gun the kinetic energy of the bullet is __________.
A. Less than the gun
B. Is incomparable
C. More than the gun
D. Equal to the gun
Solutions
- According to Conservation Of Linear Momentum momentum, the linear momentum of bullet and gun is the same in magnitude but opposite in direction.
- The relation between Kinetic energy and linear momentum is given by –
K.E = p2/2 m
→ now momentum remains the same as said above
Therefore, K.E ∝ 1/2 m
K.E is inversely proportional to the mass of the body
- Therefore body having less mass will have greater kinetic energy and vice versa
- Here, in this case, the bullet is lighter than the gun, therefore, the kinetic energy of the bullet is more than that of the gun.
42. The square root of 13.69 is _______.
A. 0.37
B. 0.037
C. 3.7
D. 37
Solutions
Given:
We need to find √13.69
Calculations:
Let x be the square root of 13.69
⇒ x2 = 13.69
⇒ x2 = 1369/ 100
⇒ x2 = 37 × 37/ (10 × 10)
⇒ x = 37/ 10
⇒ x = 3.7
Shortcut Trick
√13.69 = √(1369/100) = √1369 / √100 = 37 /10 = 3.7
43. Which actor’s autobiography is titled ‘Khullam Khulla’?
A. Ranbir Kapoor
B. Raj Kapoor
C. Rishi Kapoor
D. Rajiv Kapoor
Solutions
- Rishi Kapoor is the author of the book & ldquo; Khullam Khulla: Rishi Kapoor Uncensored.
- It was published in the year 2017.
- The book is about his father’s affairs, his own temptations, crushes on Bollywood actresses, and his own quirks that wife Neetu has to put up with, or why his relationship with son Ranbir is not quite how it should be!
44. Select the option that can replace the question mark (?) in the following series.
Question figure:
A. A
B. D
C. C
D. B
Solutions
The pattern followed here is that the next image is rotating 90° in a clockwise direction.
Hence, “option figure B” is the correct answer.
45. A truck falls off a ledge and drops to the ground in 0.8 secs. How high is the ledge from the ground? (g = 10 m/s2)
A. 0.32 m
B. 320 m
C. 3.2 m
D. 32 m
Solutions
Using the second law of motion to compute the height of the ledge
s = ut + ½ gt2
s = height of the ledge
u = Initial velocity
t = time
g = acceleration due to gravity,
→ s = 0 + ½ × 10 × (0.8)2 [Intial velocity will be zero]
s = 3.2 m
→ Therefore, the ledge is 3.2 m high from the ground.
46. The HCF of 54, 66, and 90 is:
A. 6
B. 9
C. 4
D. 3
Solutions
⇒ Factors of 54 are 2 × 33
⇒ Factors of 66 are 2 × 3 × 11
⇒ Factors of 90 are 2 × 32 × 5
⇒ Highest common factor = 2 × 3
∴ HCF = 6
47. Given is a statement followed by two arguments numbered I and II. Consider the statement and the arguments and decide which of the arguments is/are strong.
Statement:
Should sports be made compulsory for primary students?
Arguments:
I. Yes, sports are important for physical development.
II. No, sports waste the academic time of students, thus making them weaker in academics.
A. Both argument I and II are strong.
B. Only argument II is strong.
C. Neither argument I nor II is strong.
D. Only argument I is strong.
Solutions
The argument I holds strong as it stated about the importance of playing sports for “physical development”.
Argument II is talking about the time that is spent in playing sports, which can be managed well in a way that sports and academics go hand in hand. Thus, argument II is not that strong as it does not give us any direct disadvantage of playing sports. Hence, “Only argument I is strong”.
48. Who was the first female CEO of Lloyd’s of London?
A. Deanna M. Mulligan
B. Beth E. Mooney
C. Anna Manning
D. Inga Beale
Solutions
- Inga Beale was the first female CEO of Lloyd’s of London
- Lloyd’s of London is an insurance and reinsurance market located in London, United Kingdom.
49. Using the below statements can we verify the conclusions?
Statement:
- All diagrams are figures.
- All figures are three dimensions.
Conclusions:
All figures are diagrams
All three dimensions are diagrams
A. All the conclusions follow
B. No conclusion follow
C. Only conclusion 1 follows
D. Only conclusion 2 follows
Solutions
The minimum possible Venn diagram of the given statements,
Conclusions:
I. All three dimensions are diagrams → False (its possible but not definite)
II. All figures are diagrams → False (its possible but not definite)
Hence, “No conclusion follows”.
50. The process where electricity is passed through 10% NaCl is called __________.
A. Hall-Heroult process
B. Chlor-alkali process
C. Bayers Process
D. Chlor-salt process
Solutions
- When the electricity is passed through the aqueous solution of 10% NaCl (brine) then it decomposes to form sodium hydroxide, a basic compound. This process is called chlor – alkali process.
2Nacl(aq) + 2H2o → 2NaOH(aq) + cl2 (g) + H2(g)
- The three products in this reaction come are –
Sodium hydroxide (NaOH)
Chlorine (Cl2)Hydrogen(H2)
51. Name three elements that have a Single electron outermost Shells?
A. Magnesium, Helium, Neon
B. Magnesium, Calcium, Barium
C. Helium, Neon, Argon
D. Lithium, Sodium, Potassium
Solutions
Explanation:
- Lithium, Sodium, and Potassium have a Single-electron outermost Shells
- All the elements belonging to the 1st group of the periodic table have one electron in their outermost shell.
The 1st group elements include hydrogen, lithium, sodium, potassium, Rubidium, caesium and francium.
52. The Pulichintala Hydroelectric Project is on which river?
A. Penna
B. Krishna
C. Kaveri
D. Godavari
Solutions
- The Pulichintala Hydroelectric project is located on River Krishna in Andhra Pradesh.
- It is named after eminent engineer and former Union Minister, Late K L Rao, the Pulichintala dam built across the Krishna River between areas in Nalgonda on one side and Guntur on the other side, is the third major irrigation project, after Srisailam and Nagarjuna Sagar.
53. 5.52 – 2.32 + 0.82 × 0.12 ÷ 0.44 – 3.14 = ?
A. -0.07
B. -0.09
C. 0.09
D. 0.07
Solutions
Using BODMAS rule:
⇒ 5.52 – 2.32 + 0.82 × 0.12 ÷ 0.44 – 3.14
⇒ 5.52 – 5.29 + 0.64 × 0.12 ÷ 0.0256 – 3.14
⇒ 0.23 + 0.64 × 4.6875 – 3.14∴ 0.23 + 3 – 3.14 = 0.09
Using BODMAS rule:
⇒ 5.52 – 2.32 + 0.82 × 0.12 ÷ 0.44 – 3.14
⇒ 5.52 – 5.29 + 0.64 × 0.12 ÷ 0.0256 – 3.14
⇒ 0.23 + 0.64 × 4.6875 – 3.14
∴ 0.23 + 3 – 3.14 = 0.09
54. Solution A has a pH of 6, Solution B has a pH of 8 and Solution C has a pH of 2, Which solution has the most hydrogen ion concentration?
A. B
B. A
C. C
D. None have hydrogen ions
Solutions
- The pH level is a measure of the number of Hydrogen ions in a solution.
- The lower the solution or compound on the pH scale, the higher will be the concentration of hydrogen ions.
- Therefore the solution having a pH of 2 i.e Solution C will have the highest concentration of hydrogen ions.
- The pH scale ranges from 0 to 14.
- A pH value of 7 is considered neutral, example – water and pH value > 7 is Basic >pH value < 7 is Acidic
55. Find the next number in the following series.10, 16, 25, 37, ?
A. 42
B. 50
C. 52
D. 45
Solutions
⇒ 16 = 10 + 6
⇒ 25 = 10 + 6 + 9
⇒ 37 = 10 + 6 + 9 + 12
∴ Next term will be 10 + 6 + 9 + 12 + 15 = 52
56. Who inaugurated Global Entrepreneurship Summit (GES-2017) in Hyderabad jointly with PM Narendra Modi?
A. Ivanka Trump
B. Ivana Trump
C. Melanie Trump
D. Donald Trump
Solutions
Ivanka Trump the daughter of Donald Trump (President of USA) inaugurated Global Entrepreneurship Summit (GES-2017) in Hyderabad jointly with PM Narendra Modi
India and US co-hosted the Global Entrepreneurship Summit at Hyderabad from November 28 this year.
The three-day summit to bring together entrepreneurs from the two countries was hosted by India and the US.
57. The mean of the observations x, x + 3, x + 5, x + 8, x + 9 is 9. What is the mean of the last three observations?
A. 31/3
B. 32/3
C. 34/3
D. 35/3
Solutions
⇒ Formula of mean = Sum of observations/Number of observations
⇒ 9 = (x + x + 3 + x + 5 + x + 8 + x + 9)/5
⇒ 5x + 25 = 45
⇒ x = 4
∴ Mean of the last 3 observations = (9 + 12 + 13)/3 = 34/3
58. Sumana introduces Mahesh and Kumresh as her son’s uncle’s sons. The boys are Sumana’s _______.
A. friends
B. nephews
C. cousins
D. nieces
Solutions
From the given information we can draw two possible family tree diagrams as follows,
From both the diagrams it is clear that “Mahesh and Kumresh” both are Sumana’s nephews.
Hence, “nephews” is the correct answer.
59. Which state government will set up the world’s first IT campus for differently-abled persons?
A. Haryana
B. Andhra Pradesh
C. Telangana
D. West Bengal
Solutions
- The Telangana government announced that it will set up an information technology campus for persons with disabilities, claiming this will be the world’s first such facility.
- The government entered into an agreement with Vindhya E-Infomedia Private Limited to set up the IT campus, which will focus on creating employment opportunities for persons with disabilities.
- Currently, K. Chandrashekar Rao is the CM and E. S. L. Narasimhan is the governor of Telangana.
60. Raghuvir obtained an average of 25 marks in 12 tests. Rumela has been maintaining an average of 23 marks so far, but she has taken only 8 of the tests. How much does Rumela have to score on an average in the remaining 4 tests to match Raghuvir’s performance?
A. 26
B. 28
C. 27
D. 29
Solutions
⇒ Average = Number of score/Number of tests
⇒ Marks scored by Rahuvir in 12 tests = 25 × 12 = 300
⇒ Marks scored by Rumela in first 8 tests = 23 × 8 = 184
⇒ Marks required by Rumela in next 4 tests to match the average of Raghuvir = 300 – 184 = 116
∴ Required average = Marks required/Number of tests = 116/4 = 29
61. The oxides of carbon, nitrogen, and Sulphur that are released on burning fossil fuels are
A. Acidic oxides
B. Neutral oxides
C. Amphoteric oxides
D. Basic oxides
Solutions
Metals form basic oxide while Non-metals can form acidic oxides in general.
Generally, Metals can have 1 to 3 electrons in their outermost shell and Non-metals have 4 to 8 electrons in the outermost shell.
Therefore, carbon, nitrogen, and Sulphur being non-metals will form Acidic oxides.
62. Two bones can be connected to each other by another type of connective tissue called the ___________.
A. Tendons
B. Cartilage
C. Matrix
D. Ligament
Solutions
Ligament is the connective tissue which connects bone to bone.
Tendon connects muscle to bone and fasciae connects muscle to muscle.
Cartilage Smoothen bone surface at joints.
63. By working 8 hours a day, Ram writes a book in 18 days. How many hours should he work per day to complete his work in 12 days?
A. 9 hours
B. 10 hours
C. 12 hours
D. 15 hours
Solutions
⇒ Total time taken by Ram to complete the work = 8 × 18 = 144 hours
⇒ No. of hours required to complete his work in 12 days = 144/12 = 12 hours/day
∴ Ram should work for 12 hours/day to complete his work in 12 days.
64. Who among the following was appointed as a whole-time member of market regulator Securities and Exchange Board of India (SEBI) on 7 November 2017?
A. Sanjeev Kaushik
B. UK Sinha
C. Neelam Damodaran
D. V Ramakrishnan
Solutions
- Sanjeev Kaushik was appointed as whole time member of SEBI for a period of three years or till the age of 65 years, whichever is earlier.
- Kaushik replaces S Raman, who retired from the post of a whole-time member in September 2017.
- Prior to this appointment, he was Chairman and Managing Director of India Infrastructure Finance Company Ltd (IIFCL).
- The Securities and Exchange Board of India (SEBI) is the regulator for the securities market in India. It was established in the year 1988 and given statutory powers on 30 January 1992 through the SEBI Act, 1992.
- The headquarters of SEBI is in Mumbai, Maharashtra.
65. Suresh is facing the south-west direction. He turns 135° clockwise and then turns 45° in the anti-clockwise direction. In which direction he is facing now?
A. North-west
B. South
C. North-East
D. North
Solutions
Following figure shows the information given,
Clearly, Suresh is facing North-west direction.
Hence, “North-West” is the correct answer.
66. Who amongst the following won the Best FIFA Men’s Player Award 2017?
A. Lionel Messi
B. Neymar Jr.
C. Cristiano Ronaldo
D. Wayne Rooney
Solutions
- Cristiano Ronaldo has caught up with Lionel Messi to become a five-time winner of FIFA’s best player award.
- The Real Madrid forward was crowned player of the year at the FIFA Best ceremony at the London Palladium theatre.
- Lieke Martens, who scored in the final win over Denmark, won the player’s award and Sarina Wiegman collected the coaching accolade.
- Ronaldo is a Portuguese professional footballer who plays for Spanish club Real Madrid and the Portugal national team. He is a forward and serves as captain for Portugal.
67. Who was the founder of the Pratihara dynasty?
A. Narasimhadeva I
B. Nagabhata-I
C. Harshvardhan
D. Ramachandra
Solutions
The correct answer is Nagabhata-I.
Key Points
- Nagabhatta I was the founder of the Gurjara-Pratiharas Dynasty.
- The Pratiharas Dynasty(8th-11th Century A.D):
- The Pratiharas were also renamed as Gurjara.
- Between the 8th and 11th century A.D, they ruled over northern and western India.
- Pratiharas: A fortification- Against the hostility of the Muslims from the days of Junaid of Sind, the Pratiharas stood as a fortification of India’s defense to Mahmud of Ghazni.
Additional Information
- Basic Information about other Kings given in Option:
- Narasimhadeva I: Narasingha Deva I was a powerful monarch and warrior of the Eastern Ganga Dynasty or suryabansha of early medieval Odisha who reigned from 1238 to 1264.
- Harshvardhan: He was an Indian emperor who ruled majorly in North India from 606 to 647 CE. He was a member of the Vardhana dynasty.
- Ramachandra: He was a ruler of the Sauna (Yadava) dynasty of Deccan region in India. He established his capital in Devagiri which is presently located in Maharashtra.
68. How many triangles are there in the following figure?
A. 17
B. 14
C. 13
D. 16
Solutions
We can count the triangles as follows,
Hence, there are “16” triangles.
69. The element with atomic number 57 belongs to:
A. s-block
B. d-block
C. f-block
D. p-block
Solutions
- The element with atomic number 57 belongs to d-block
- The d-block elements are called transition metals and have valence electrons in d-orbital that’s why such metals named as d-block elements.
- The d-block elements are found in groups 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 of the periodic table
- Valence shell electronic configuration of d-block element is (n- 1)d1-10 ns1-2.
- There are three series of transition elements which are known as 3d series, 4d series, 5d series.
- 3d series start from Scandium (Sc) to Zinc (Zn), 4d series start from Yttrium (Y) to Cadmium (Cd) and 5d series start from Lanthanum(La) to Mercury (Hg), excluding Cerium (Ce) to Lutetium (Lu).
70. Aihole Inscription is associated with which of the following rulers?
A. Vikramaditya
B. Pulakesin II
C. Akbar
D. Ashoka
Solutions
The correct answer is Pulakesin II.
Important Points
- Aihole inscription was written by Ravikirti who was a poet during the reign of Pulakeshi II.
- Aihole is situated in Karnataka and is widely recognized as the Cradle of Indian Architecture.
- It served as the capital of Chalukyas.
- This inscription gives information about the conquests of Pulakesin, especially how he defeated Harshavardhana.
Additional Information
- Pulakeshin II, the King of the Chalukya dynasty defeated Harshavardhana when he seeks to enlarge his Empire into the southern peninsula of India.
- He defeated Harshavardhana on the banks of the Narmada river in 630 AD.
71. There are a red, b yellow and c green tokens in a bag. If a : b ∷ 13 : 10. b : c ∷ 6 : 13, then a : b : c is given by:
A. 13 : 6 : 10
B. 13 : 6 : 13
C. 39 : 30 : 65
D. 13 : 60 : 13
Solutions
Given a/b = 13/10 —-(1)
b/c = 6/13 —-(2)
Multiply (1) by 6/6 and (2) by 10/10
⇒ We get, a/b = 78/60 and b/c = 60/130
∴ a : b : c = 78 : 60 : 130 = 39 : 30 : 65
72. Read the given question and decide which of the following information is sufficient to answer the question.
Question:
What is the area of ΔABC?
Information:
- AC = 12√2 cm
- AB = 12 cm; BC = 12 cm
A. Only 1 is sufficient.
B. Both 1 and 2 are sufficient.
C. Only 2 is sufficient.
D. Either 1 or 2 is sufficient.
Solutions
Here, statement 2 is sufficient as Area of triangle = ½ AB × BC
73. The dehydrating agent used in the conversion of ethanol to ethene is __________
A. Heat
B. Concentrated Sulphuric acid
C. Nickel
D. Sunlight
Solutions
When ethanol is heated with Concentrated Sulphuric acid ethene is obtained, it is known as a dehydration reaction.
- A dehydration reaction is a conversion in which water is lost from the reacting molecule or ion. Dehydration reactions are common methods, the reverse of a hydration reaction.
- A dehydrating agent is a chemical compound used to drive a dehydration reaction and to absorb moisture from its surroundings.
74. In which state is the oldest oil field of India?
A. Assam
B. Punjab
C. Maharashtra
D. Gujarat
Solutions
- Digboi is known as the Oil City of Assam where the first oil well in Asia was drilled.
- The first refinery was started here as early as 1901 by Assam Oil Company Ltd.
- Digboi has the oldest oil well in operation.
- The Indian Oil Corporation Ltd (IOC) took over the refinery and marketing management of Assam Oil Company Ltd. with effect from 1981 and created a separate division.
75. Find the next term in this series.14, 42, 126, _______.
A. 370
B. 378
C. 376
D. 375
Solutions
⇒ 42 = 14 × 3
⇒ 126 = 42 × 3
∴ 126 × 3 = 378
76. Saraswathi and Gauri are sisters. How is Gauri’s brother related to Saraswathi’s father’s father?
A. Grand daughter
B. Uncle
C. Grandson
D. Son
Solutions
The best possible family tree diagram from given information as follows,
Clearly, Saraswathi’s father’s father will be grandfather of Saraswathi, Gauri and Gauri’s brother. Since, all of them i.e., Saraswathi, Gauri and Gauri’s brother are siblings.
Hence, Gauri’s brother is “grandson” of Saraswathi’s father’s father.
77. What day would it be on 29th March 2020?
A. Friday
B. Monday
C. Sunday
D. Saturday
Solutions
As 2000 is divisible by 400 the number of odd days is 0.
Number of leap years till 2019 = 4 (2004, 2008, 2012 and 2016)
Number of ordinary years till 2019 = 15
Number of odd days till 2020 = 15 + (4 × 2) = 23 odd days
Number of odd days in January 2020 = 3
Number of odd days in February 2020 (2020 is the leap year) = 1
Total number of odd days till 29th March 2020 = 23 + 3 + 1 + 29 = 56 odd days = 0 odd days
So, the day on 29th March 2020 is Sunday.
78. Who was the second Indian women footballer to win the Arjuna Award?
A. Oinam Bembem Devi
B. Aditi Chauhan
C. Bala Devi
D. Mithali Raj
Solutions
- Oinam Bembem Devi, flag bearer of Indian women’s football over the past 2 decades has been named as the winner of Arjuna Award.
- Bembem becomes the 2nd Indian woman footballer to win the award, the first being Shanti Mullick in 1983.
- Bembem, nicknamed ‘Durga of Indian Football, made her international debut in 1995, bowed out on a high after winning SAF Games Gold Medal in Shillong in 2015.
79. Given is a statement followed by two assumptions numbered I and II. Consider the statement and the following assumptions and decide which of the assumptions is/are implicit in the statement.
Statement:
“One of the reasons of obesity is binging on junk food”, says a mom to her daughter.
Assumptions:
I. Junk food causes obesity.
II. Rita and Gita are mom and daughter.
A. Both assumptions I and II are implicit.
B. Only assumption I is implicit.
C. Only assumption II is implicit.
D. Neither assumption I nor II is implicit.
Solutions
From the statement we know that “the reasons of obesity is binging on junk food,” which is very clear and therefore, we can assume that “junk food causes obesity”. But the statement gives no information about Rita and Gita, so the assumption that “Rita and Gita are mom and daughter” cannot be implied.
Hence, “only assumption I is implicit”.
80. Rakesh and Ranjit can complete a task in 4 and 6 days, respectively when working alone. Ranjit started working on the task, and was joined by Rakesh after 2 days. How many days will they require to complete the remaining work?
A. 1.6
B. 0.8
C. 2
D. 1.2
Solutions
Given:
Rakesh and Ranjit can complete a task in 4 and 6 days, respectively when working alone.
Ranjit started working on the task, and was joined by Rakesh after 2 days.
Formula:
Work = Time × Efficiency
Calculation:
⇒ Work completed by Rakesh in 1 day = 1/4
⇒ Work completed by Ranjit in 1 day = 1/6
⇒ Work completed by Ranjit in 2 days = 2 × (1/6) = 1/3
⇒ Work left = 2/3
⇒ Work completed by Ranjit and Rakesh in 1 day = 1/4 + 1/6 = 5/12
∴ Time taken by Ranjit and Rakesh to complete the remaining work = (2/3)/(5/12) = 1.6 days
∴ required number of days = 1.6 days
81. A ladder of length 13 metres is placed against the wall and the foot of the ladder is 6.5 metres from the wall. What is the angle of elevation of the ladder leaning against a wall?
A. 105°
B. 30°
C. 45°
D. 60°
Solutions
Here the length of base is 6.5 meter and the length of hypotenuse is 13 meter.
cos A = 6.5/13 = 1/2
∴ Angle of elevation is 60°
82. How many leap years are there in a period of 100 years?
A. 23
B. 22
C. 24
D. 25
Solutions
Leap year comes after a period of 4 years.
In a period of 100 years the number of leap years = 100/4 = 25 – 1 = 24
Hence, the correct answer is 24 years.
Mistake Point
Century leap year are those which are completely divisible by 400.
for ex: 100, 200 are not leap years while 400, 800, 1200 are leap years.
so if you consider another set of 100 whose 100th year is leap then the answer is 25 but we have to considered 24 as answer because when period of year is not mentioned then the safe is 24.
83. What is the GDP growth rate for India in 2018-19 projected by IMF?
A. 8.5%
B. 7.3%
C. 9%
D. 6%
Solutions
- According to the International Monetary Fund (IMF), India’s growth is projected to pick up (from 7.1% in 2018) to 7.3% in 2019 and 7.5% in 2020
- The International Monetary Fund (IMF) has projected that global growth will be 3.3% in 2019, down from 3.6% in 2018 and 4% in 2017.
- This lower projection is due to lower global expansion in the second half of 2018 caused because of factors like U.S.-China trade tensions.
84. Which assumption/s is/are implied from the below statement?
Statement:
The headmistress called for a meeting for all parents and teaching staff to discuss fee structure.
Assumptions:
I. There is a plan to revamp fee structure.
II. To arrive at a common consent.
A. Only II is implicit
B. Only I is implicit
C. Both I and II are implicit
D. Neither I nor II is implicit
Solutions
From the given statement we know that a meeting has been called to discuss the fee structure, and unless there is any change in the fee structure that needs to be discussed, there is no point in a holding a meeting. Hence, assumption I follows.
The idea of any meeting is to discuss the issue and arrive at a decision that is favorable to all, hence assumption II follows.
85. In the series below one of the sequences is wrong. Find the wrong option:100300005, 2000400000, 300040006, 400000600000008
A. 2000400000
B. 400000600000008
C. 100300005
D. 300040006
Solutions
⇒ In 100300005, we have sequence like number 1 followed by 2 zeros for number 2, followed by number 3, followed by 4 zeros for number 4 and finally number 5.
⇒ In 2000400000, we have sequence like number 2 followed by 3 zeros for number 3, followed by number 4 and finally 5 zeros for number 5.
⇒ In 00000600000008, we have sequence like 5 zeros for number 5 followed by number 6, followed by 7 zeros for number 7 and finally number 8.
∴ the option 4 is incorrect
86. Who is the first chief commercial officer (CCO) of Bajaj Auto Ltd.?
A. Ramesh Maheshwari
B. Sumeet Narang
C. Rakesh Sharma
D. Eric Vas
Solutions
- Bajaj Auto Ltd. appointed Rakesh Sharma as its first chief commercial officer (CCO) to complement the offices of the ED and the CTO on 23 July 2018
- Bajaj Auto Ltd. is a global two-wheeler and three-wheeler manufacturing company based i India.
- It is a manufacturer of motorcycles, scooters and auto rickshaws. Bajaj Auto is a part of the Bajaj Group. It was founded by Jamnalal Bajaj in Rajasthan in the 1940s.
87. If (x + y) : (x – y) = 5 : 1 then (x2 + y2) : (x2 – y2) = ?
A. 8 : 17
B. 13 : 5
C. 25 : 9
D. 16 : 1
Solutions
⇒ x + y = 5x – 5y
⇒ 4x = 6y
⇒ x/y = 3/2
⇒ (x² + y²) / (x² – y²) = {(x/y)² + 1} / {(x/y)² – 1}
⇒ [(3/2)² + 1] / [(3/2)² – 1]
⇒ (9/4 + 1) / (9/4 – 1)⇒
(13/4) / (5/4) = 13 : 5
88. The tissue providing nutrition to the embryo in the uterus is the __________.
A. Fallopian tube
B. Oviduct
C. Placenta
D. Villi
Solutions
- Through the Placenta, the embryo gets nutrition in the uterus from the mother’s blood.
- The placenta provides oxygen and nutrients to the baby and removes carbon dioxide and other waste products.
- The placenta connects the growing baby’s umbilical cord to the mother by attaching itself to the inner wall of the womb.
- Towards the end of pregnancy, the placenta transfers antibodies from mothers to the fetus.
- HCG( Human chorionic gonadotropin) is also secreted by Placenta
89. The cost of same valued 15 tickets is Rs. 9. What will be the cost of 30 tickets?
A. Rs. 19
B. Rs. 15
C. Rs. 18
D. Rs. 16
Solutions
⇒ Cost of same valued 15 tickets = Rs. 9
∴ The cost of 30 tickets = 9 × 2 = Rs. 18
90. As per the below chart, during which hour there is the maximum number of departure?
A. 9:00 am to 10:00 am
B. 7:00 am to 8:00 am
C. 6:00 am to 7:00 am
D. 8:00 am to 9:00 am
Solutions
As per given data, the maximum number of departures happened during 6:00 am to 7:00 am
91. What is the compound interest on Rs. 31250 at 8% per annum for 
years?
A. Rs. 7337
B. Rs. 7387
C. Rs. 7800
D. Rs. 7300
Solutions
Amount = Principal (1 + rate of interest/100)time period
Amount = 31250 (1 + 8/100)2 (1 + (3/4 × 8)/100)
Amount = 31250 (27/25)² (53/50)
Amount = 38637
∴ Compound interest = 38637 – 31250 = Rs. 7387
92. ___________ never occurs singly in nature.
A. Momentum
B. Force
C. Velocity
D. Pressure
Solutions
- According to Newton, Force is the mutual interaction between two bodies; hence it never occurs singly in nature.
- This is the basis of Newton’s third law i.e., “For every action, there is always an equal and opposite reaction”.
- This states that forces always occur in pairs i.e., if A exerts a force on B then B will exert an equal and opposite force on A.
→ Additional Information:
- Momentum is defined as the product of mass and velocity of the body and is the measure of the amount of motion contained in a body, Unit of momentum is (kg⋅m/s).
- Velocity is defined as the displacement of the object in a unit time interval, unit of velocity is m/s.
- The pressure is defined as the force applied perpendicularly per unit area (pressure=force/area), SI unit of pressure is ‘Pascal’ and its formula sign is Pa.
93. The given pie chart shows information about Non-Performing Assets (NPA) processed by the various banks of India till December 2017.
If the total NPAs under all the banks are worth Rs. 300 lakh crores, then NPAs worth how much (in Rs. lakh crores) does Bank ‘E’ contain till December 2017?
A. 20
B. 60
C. 40
D. 80
Solutions
NPAs of Bank ‘E’ till December 2017 = 20% of 300 lakh crores = 60 lakh crores
94. ______ can reproduce by budding.
A. Hydra
B. Earthworms
C. Lobsters
D. Starfish
Solutions
- Hydra can reproduce by regeneration and budding.
- In budding, initially buds appear as a small bulge. They further grow, and within 2-4 days they become fully-formed hydra. Then it detaches from the parent body.
- In regeneration, regrowth of damaged or lost part takes place.
- Hydra reproduces sexually and asexually both. Asexual reproduction takes place either by budding or by fission.
- Hydra belongs to Phylum Coelenterata.
95. Which of the answer figures will come next in following problem figure series?
Problem figure:
A. A
B. B
C. D
D. C
Solutions
In the question figure every image consists of three-line segment on that basis there is only one figure that satisfies the pattern and that is option figure B.
Hence, “option figure B” is the correct answer.
96. Who was the Chairman of the Drafting Committee of the Indian Constitution?
A. Jawaharlal Nehru
B. Dr. BR Ambedkar
C. Vallabhai Patel
D. Dr. Rajendra Prasad
Solutions
- On August 29, 1947, the Drafting Committee of the Indian constitution was set up and Dr. Bhimrao Ramji Ambedkar was appointed its chairman.
- The Drafting Committee was set up for preparing a draft for the new constitution.
- While deliberating upon the draft Constitution, the Assembly moved, discussed and disposed of as many as 2,473 amendments out of a total of 7,635 tabled.
- B.R. Ambedkar was also the first Law Minister of India.
97. Which figure follows next?
A. A
B. B
C. D
D. C
Solutions
The pattern followed here is as follows,
similarly,
Note: as per pattern followed in the series, we see the elements in the 1st step shift by +1, then in the 2nd step by +2. There is a possibility that in the 3rd step it will be shifted by +3 but as per the given options we seen option D is most suitable were elements are shifted by again +1. In all the other option the 1st elements is not shifted only thus they are eliminated.
Hence, “option figure D” is the correct answer.
98. The size of the image formed by a converging mirror when the object is placed at principal focus is _________.
A. highly magnified
B. diminished
C. of the same size
D. point image
Solutions
- When the object is placed at the principal focus in case of converging or concave mirror then the parallel ray of light pass through the principal focus F giving us the reflected ray.
- And the second ray of light passes through the center of curvature C and is reflected along the same path forming another reflected ray. In this case, both the reflected rays will become parallel to each other so these rays cannot intersect each other and the image will be formed at infinity.
- The image formed in this case will be highly magnified, real and inverted.
99. Read the given statement(s) and conclusions carefully and select which of the conclusions logically follow(s) from the statement(s).
Statement:
- All wool are yarn.
- Some wool are rough.
Conclusions:
- All rough are wool.
- Some Yarn are rough.
A. Both conclusions follow.
B. Only conclusion I follows.
C. Neither I nor II follows.
D. Only conclusion II follows.
Solutions
The least possible Venn diagram of the given statements is as follows:
Conclusions:
I. All rough are wool → False (it is possible but not definite)
II. Some Yarn are rough → True.
Hence, “only conclusion II follows”.
100. A galvanometer is used to:
A. detect the direction of light
B. detect the direction of the sound
C. detect the direction of the current
D. detect the direction of magnetic induction
Solutions
- The galvanometer is an instrument for measuring value and direction of a small electrical current or a function of the current by deflection of a moving coil.
- The deflection is a mechanical rotation derived from forces resulting from the current.
- An ammeter is also used for measuring the magnitude of the current.
- Galvanometer was invented by Johann Schweigger in 1820.
