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This mock test of RRB NTPC Previous Year Paper (kolkata) - 2008 for Railways helps you for every Railways entrance exam.
This contains 80 Multiple Choice Questions for Railways RRB NTPC Previous Year Paper (kolkata) - 2008 (mcq) to study with solutions a complete question bank.
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students definitely take this RRB NTPC Previous Year Paper (kolkata) - 2008 exercise for a better result in the exam. You can find other RRB NTPC Previous Year Paper (kolkata) - 2008 extra questions,
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QUESTION: 1

For the following questions answer them individually

**Q. **The chemical bond in germanium crystal is

Solution:

QUESTION: 2

A ball is thrown upward in vacuum at 49 m/sec. The time taken by the ball to reach the highest point is

Solution:

initial velocity=u=49 m/s

final velocity=v=0 m/s

acceleration due to gravity=g=-9.8 m/s^{2}m/s2

we know, v=u + gt

=>t=-u/t

t=5 s

QUESTION: 3

The majority charge carriers in p - type semi conductors are

Solution:

QUESTION: 4

A body is projected at angle \thetaθ with the horizontal, time of flight is given by

Solution:

If a body is projected at angle \thetaθ with the horizontal at an initial velocity u, then

time of flight= where g is the acceleration due to gravity

QUESTION: 5

If the distance between two masses be doubled, the gravitational force of attraction between them will be

Solution:

QUESTION: 6

The ratio the length and the breadth of a rectangle is 4 : 3. The area of the rectangle is 192 cm^{2}cm2. What will be its perimeter ?

Solution:

Given, l/b=3/4....(1)

l x b=192....(2)

On solving (1) and (2) we get, l=16 and b=12

Thus perimeter=2(l + b)=2(16 + 12)=56cm

QUESTION: 7

A force provides an acceleration of 0.5 m/sec^{2}m/sec2 to a body of mass 2 kg. What acceleration will it produce when acting on a body of mass 10 kg ?

Solution:

f=m×a;=2×.5;=1 N

if m=10 then,

QUESTION: 8

The cathode rays are

Solution:

QUESTION: 9

In the most popular abbreviation in the field of banking sectors ‘CBS’. The letter ‘C’ stands for

Solution:

QUESTION: 10

Which group of inhabitants is tagged to be connected by seasonal roads during 2008-09 ?

Solution:

QUESTION: 11

Which of the following economists has been conferred with Nobel Prize ?

Solution:

QUESTION: 12

In notation http:/www/prenhall.com. http stands for

Solution:

QUESTION: 13

During a period of time you see so many websites and pages exhibited by

Solution:

QUESTION: 14

Where does the digestive and respiratory routes encroach each other

Solution:

QUESTION: 15

The state government gets maximum revenue from

Solution:

QUESTION: 16

On internet no change in no charge the repair of generally known software, bug, is called

Solution:

QUESTION: 17

Maria Sharapova won Australian Open Tennis 2008 by defeating

Solution:

QUESTION: 18

The planning commission of India has formed a 12 - member committee for reforms in financial sectors. The chairman of this committee is

Solution:

QUESTION: 19

The thickness of troposphere can increase during

Solution:

QUESTION: 20

The lightest gas in the atmosphere is

Solution:

QUESTION: 21

White phosphorus is stored in

Solution:

QUESTION: 22

Find the least number by which 8640 is divided and the quotient obtained becomes a perfect cube.

Solution:

8640=12^{3}×5

thus, if 8640 is divided by 5, the quotient will be a perfect cube i.e 12^{3}12^{3}

∴ 5 is the correct answer.

QUESTION: 23

Evaluate :-

Solution:

QUESTION: 24

Which of the following features/provisions did the framers of Indian constitution take from the US constitution ?

Solution:

QUESTION: 25

The golden period of Indian culture was during

Solution:

QUESTION: 26

Artificial dialysis is used in the form of

Solution:

QUESTION: 27

Evaluate :-

Solution:

QUESTION: 28

then x is equal to

Solution:

QUESTION: 29

Solution:

QUESTION: 30

When polynomial is divided by x - 1, the remainder is

Solution:

QUESTION: 31

What will be the ratio of amount and the principal in n years at 5% p.a. rate of compound interest ?

Solution:

amount of compound interest=A=P(1 + r/100)^{t} where P=Principal,r=rate of interest and t=time

∴ A/P=(1 + .05)^{n}

=(21/20)^{n}

QUESTION: 32

A freely suspended bar magnet always remains in the direction

Solution:

QUESTION: 33

Prudent

Solution:

Prudent means acting with care.Cautious means being careful to avoid problems.Thus, option A is the apt choice.

QUESTION: 34

Feeble

Solution:

Feeble means lacking physical strength.Weak also means lacking physical power.Thus, option C is the right choice.

QUESTION: 35

Coarse

Solution:

Coarse means harsh.Rough also means the same.So option C is correct.Haughty indicates a behaviour that indicates yourself superior.So option A is wrong..Options B and D are irrelevant to the given word.

QUESTION: 36

Calamity

Solution:

An incident that causes a large amount of damage and distress is called a calamity. Disaster also means the same. Hence, B is the correct option.

QUESTION: 37

Diligent

Solution:

Diligent means hardworking.Industrious also means hardworking. Therefore, option D is the right answer.Energetic means highly active and is not the same as hardworking, so option B is incorrect

QUESTION: 38

For the following questions answer them individually

**Q. **The angle subtended at the center of a circle by a major arc will be

Solution:

QUESTION: 39

A body dropped from a tower with zero velocity, reaches the ground in 4 seconds. The height of the tower is about

Solution:

QUESTION: 40

A man in a train moving with a constant velocity drops a ball on platform. The path of the ball as seen by an observer standing on the platform is

Solution:

QUESTION: 41

Who among the following economists has done pioneering work on national income?

Solution:

QUESTION: 42

Monopoly means

Solution:

QUESTION: 43

Who introduced the silver coin called “Taka” or ‘Rupia’ ?

Solution:

QUESTION: 44

What is the International Date Line ?

Solution:

QUESTION: 45

The lines joining places experiencing a thunder stream at the same time is known as

Solution:

QUESTION: 46

When a metal is heated, its resistance

Solution:

QUESTION: 47

The resistance of a wire of length 20 cm is 5 Ω, it is stretched uniformly to a length of 40cm, The resistance now becomes

Solution:

QUESTION: 48

Which among the following is an air to ground missile ?

Solution:

QUESTION: 49

Which of the following countries is not a permanent member of UN Security Council?

Solution:

QUESTION: 50

Which of the following is not a Navaratna PSU ?

Solution:

QUESTION: 51

The profit earned after selling an article for Rs. 878 is the same as loss incurred after selling the article for Rs. 636. What is the cost price of the article ?

Solution:

Let the cost price of the article be x Rs. Profit earned by selling it at 878 = 878 - x

Loss incurred by selling the article for 636 = x - 636

But profit earned = loss incurred

So, 878 - x = x - 636

So, x = 757

QUESTION: 52

The ages of Khushi and jagriti are in the ratio 5 : 8. After 8 years the the ratio of their ages will be 3 : 4. What is the difference in their ages ?

Solution:

Let their ages be 5x and 8x. After 8 years, their ages are 5x + 8 and 8x + 8. But 5x+8:8x+8 = 3:4

Solving for x, we get x = 2

So, difference of ages = 8x - 5x = 3x = 6 years

QUESTION: 53

In how many different ways can the letters of the word “PUNCTUAL” be arranged ?

Solution:

There are 8 letters in PUNCTUAL of which 7 are unique. There are 2 Us. So, the number of ways they can be arranged = 8!/2! = 20160

QUESTION: 54

Mohan decides to attend to some urgent work on a particular day in the month of August 2008. What is the probability that the day chosen by Mohan to attend to his work is a saturday ?

Solution:

There are 31 days in August and there are 5 Saturdays in them.

So, the probability of working on a saturday=5/31

QUESTION: 55

While selling a watch, a shopkeeper gives a discount of 15%. If he gives a discount of 20% he earns Rs.51 less a profit. What is the original price of the watch ?

Solution:

let the marked price of the watch be MP. So the selling price = .85 MP

Profit = .85 MP - CP

If the discount = 20%, selling price = .8 MP

Profit = .8 MP - CP

But (.85MP - CP) - (.8MP - CP) = 51

So, .05 MP = 51

or MP = 1020

QUESTION: 56

The length, breadth and height of a school auditorium are 10 m, 30 m and 10 m respectively. The density of air is 1.3 kg per cubic metre, the mass of their inside the auditorium is

Solution:

Given, density of air=1.3 kg/m^{2}

volume of the auditorium=l x b x h=3000m^{2}

mass inside auditorium=density x volume=1.3 x 3000=3900 kg

QUESTION: 57

The mushroom which we eat as vegetable is a/an

Solution:

QUESTION: 58

If the numerator of a fraction is increased by 300% and the denominator is increased by 500%, the resultant fraction is 5/12. What was the original fraction ?

Solution:

Let the original fraction be x/y. New fraction is 300% of numerator and 500% of denominator ie 3x/5y

QUESTION: 59

12 men can do a piece of work in 10 days. How many men would be required to do the same work in 8 days ?

Solution:

12 men can do a work in 10 days

How many men are needed to complete the work in 8 days

= 12 x 10 / 8 = 15

QUESTION: 60

Monazite is an Ore of

Solution:

QUESTION: 61

The god of the konark temple in Orissa is

Solution:

QUESTION: 62

In the following the spice obtained from the root is

Solution:

QUESTION: 63

The first Women Prime Minister in the world was

Solution:

QUESTION: 64

The model of DNA structure was founded by

Solution:

QUESTION: 65

Vitamin E is chiefly found in

Solution:

QUESTION: 66

Which article of the Indian Constitution directs the State Government to form a Village Panchayat ?

Solution:

QUESTION: 67

Which of the following Grand Slams is played on grass courts ?

Solution:

QUESTION: 68

Which of the following medicines is used in the treatment of typhoid ?

Solution:

QUESTION: 69

Urea is a

Solution:

QUESTION: 70

Archipelago is a

Solution:

QUESTION: 71

For photosynthesis, energy is obtained from

Solution:

QUESTION: 72

We see sun before actual sunrise or after sunset due to

Solution:

QUESTION: 73

Who started the Saka Era ?

Solution:

QUESTION: 74

A sector of a circle subtending angle 36° has an area 3.85 cm^{2}cm2. The length of the arc is

Solution:

QUESTION: 75

The dimensions of energy are

Solution:

QUESTION: 76

The Vector quantity is

Solution:

QUESTION: 77

The maximum number of electrons in the second orbit of an element is

Solution:

QUESTION: 78

Saina Nehwal is related to Tennis

Solution:

QUESTION: 79

Dolomite is an Ore of

Solution:

QUESTION: 80

The permeability in free space is equal to

Solution:

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