RRB JE ME (CBT I) Mock Test- 4

# RRB JE ME (CBT I) Mock Test- 4

Test Description

## 100 Questions MCQ Test RRB JE Mock Test Series for Mechanical Engineering (ME) | RRB JE ME (CBT I) Mock Test- 4

RRB JE ME (CBT I) Mock Test- 4 for Railways 2023 is part of RRB JE Mock Test Series for Mechanical Engineering (ME) preparation. The RRB JE ME (CBT I) Mock Test- 4 questions and answers have been prepared according to the Railways exam syllabus.The RRB JE ME (CBT I) Mock Test- 4 MCQs are made for Railways 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for RRB JE ME (CBT I) Mock Test- 4 below.
Solutions of RRB JE ME (CBT I) Mock Test- 4 questions in English are available as part of our RRB JE Mock Test Series for Mechanical Engineering (ME) for Railways & RRB JE ME (CBT I) Mock Test- 4 solutions in Hindi for RRB JE Mock Test Series for Mechanical Engineering (ME) course. Download more important topics, notes, lectures and mock test series for Railways Exam by signing up for free. Attempt RRB JE ME (CBT I) Mock Test- 4 | 100 questions in 90 minutes | Mock test for Railways preparation | Free important questions MCQ to study RRB JE Mock Test Series for Mechanical Engineering (ME) for Railways Exam | Download free PDF with solutions
 1 Crore+ students have signed up on EduRev. Have you?
RRB JE ME (CBT I) Mock Test- 4 - Question 1

### A canal is 5 m wide at the bottom and 8 m wide at the the top. The depth of water is 4 m. Water is flowing in the canal with the speed of 10 m/s. How much cubic m. of water will flow in 1 minute?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 1 Area of the base 1/2 (sum of parallel sides) × Height

= 1/2(8+5)×4 = 26 m2

∵ Speed of water = 10 m/sec.

∴ Volume of water = 26 × 10 × 60 = 15600 m3

RRB JE ME (CBT I) Mock Test- 4 - Question 2

### In how many years will a sum of Rs. 3,500 yield an interest of Rs. 2,100 at 15% per annum?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 2 T = 2100×100/3500×15

T = 4 Years

RRB JE ME (CBT I) Mock Test- 4 - Question 3

### The average of all the prime and composite numbers up to 100 is:

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 3 Since 1 is neither prime nor composite number. Thus there are only 99 number viz.

2, 3, 4, 5, 6, ... 99, 100.

RRB JE ME (CBT I) Mock Test- 4 - Question 4

A, B and C can do a work in 6, 8 and 12 days respectively. Doing that work together they get an amount of Rs. 1350, the share of B in that amount is:

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 4 A’s one day work = 1/6

B’s one day work = 1/8

C’s one day work = 1/12

A’s share: B’s share: C’s share = 1/6:1/8:1/12

= 4 : 3 : 2

∴ B’s share = 1350×3/9 = ₹ 450

RRB JE ME (CBT I) Mock Test- 4 - Question 5

The cost price of an article is ₹ 3,90 and sold at a profit of 3.12%, how much would be its approximate selling price?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 5 S.P. = 390 + 3.12% of 390 = ₹ 402.168
RRB JE ME (CBT I) Mock Test- 4 - Question 6

The two chords AB and CD of a circle cut each other perpendicularly at point O. OA = 2 cm, OC = 3 cm and OB = 6 cm, then what will be the diameter of the circle?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 6

Alternate solution

Now, diameter

Diameter

RRB JE ME (CBT I) Mock Test- 4 - Question 7

17 articles were bought for ₹ 3,910 and sold for ₹ 4,590. How much was the approximate profit percentage per article?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 7 Profit = 4590 - 3910

= Rs. 680

Profit percentage = 680/3910 x 100

= 17.39%

= 17% approximately.

RRB JE ME (CBT I) Mock Test- 4 - Question 8

If cos A + cos 2A = 1, then sin 2A + sin 4A = ?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 8 cos A = 1 – cos2 A

= sin2 A

Now, since

sin2 A + cos2 A = 1

⇒ sin2 A + (sin2 A)2 = 1

⇒ sin2 A + sin4 A = 1

RRB JE ME (CBT I) Mock Test- 4 - Question 9

If θ is a positive acute angle and tan 2θ.tan 3θ = 1, then what will be the value of (2 cos2 5θ/2−1)?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 9

tan2θ.tan3θ = 1

tan2θ = cot3θ

⇒ θ = 180

RRB JE ME (CBT I) Mock Test- 4 - Question 10

A mixture contains spirit and water in the ratio 3:2. If it contains 3 liters more spirit than water, the quantity of spirit in the mixture is?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 10 Let the amount of water be x liters

∴ x+3/x = 3/2

or 2x + 6 = 3x or, x= 6

∴ The quantity of spirit in the mixture = x + 3 = 6 + 3

= 9 liters

RRB JE ME (CBT I) Mock Test- 4 - Question 11

What will be the compound interest on a sum of Rs. 25,000 after three years at the rate of 12% per annum?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 11

RRB JE ME (CBT I) Mock Test- 4 - Question 12

A round balloon of radius r subtends an angle α at the eye of an observer while the angle of elevation of its center is β. The height of the center of the balloon is:

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 12 Let O be the center of balloon of radius r. The observer’s eye is at C.

∠ACB = α and ∠OCD = β clearly, CA and CB are tangents to the circle. So

∠ACO = ∠BCO = α/2

In right angled ∆OBC,

In right angled △OCD

∴ Height of the center of the balloon is r sin β. cosec α/2

RRB JE ME (CBT I) Mock Test- 4 - Question 13

The largest and the second largest angles of a triangle are in the ratio of 3 : 2 respectively. The smallest angle is 20% of the sum of the rest two angles. What is the sum of the smallest and the second largest angles?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 13 If the largest and the second largest angles be 3x and 2x respectively then, third angle = x

∴ x + 2x + 3x = 180°

⇒ x = 30o

∴ Required sum

= x + 2x = 3x = 90°

RRB JE ME (CBT I) Mock Test- 4 - Question 14

Study the following Pie Chart carefully and answer the questions given below:

Budget estimated by a family for their monthly expenses

What is the budget estimated by the family on Clothing and Grocery together?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 14 Budget estimated on Clothing and Grocery together= (25 + 8)% of ₹ 32,000

= (33/100) × 32000 = ₹ 10,560

RRB JE ME (CBT I) Mock Test- 4 - Question 15

Study the following Pie Chart carefully and answer the questions given below:

Budget estimated by a family for their monthly expenses

Due to a sudden marriage, the family incurs Miscellaneous expenditure of ₹ 3,040. How much is the increase in the amount under this head from that of the budgeted?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 15 Budget estimated on miscellaneous 7% of ₹ 32,000

= (7/100) × 32000 = ₹ 2240

Required change= 3040-2240 = 800

RRB JE ME (CBT I) Mock Test- 4 - Question 16

PQ is a direct common tangent of two circles of radii r1 and r2 touching each other externally at A. Then the value of PQ2 is:

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 16

Since opposite sides are parallel and interior angles are 90° therefore OPQR is a rectangle.

OP = QR = r1

In △OO'R,

∠ORO' = 90°

By Pythagoras theorem,

OR2 + O'R2 = OO'2

OR2 + (r1 - r2)2 = (r1 + r2)2

OR2 = 4r1r2

∴ PQ2 = OR2 = 4r1r2

RRB JE ME (CBT I) Mock Test- 4 - Question 17

20% of the 4/5th of a number is 60, find the number?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 17

RRB JE ME (CBT I) Mock Test- 4 - Question 18

If a number x is 10% less than another number y and y is 10% more than 125, then x is equal to

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 18 x = y - 10% of y

x = 9/10 y

New, y = 125 + 10% of 125

= 110/100 × 125

∴ x = 9/10 × 110/100 × 125 = 123.75

RRB JE ME (CBT I) Mock Test- 4 - Question 19

If A, B, C, D are four points in a straight line such that distance from A to B is 10, B to C is 5, C to D is 4 and A to D is 1, then their correct sequence is:

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 19 Given that the distance from A to B = 10 and B to C = 5 and C to D = 4, D to A = 1

∴ The correct sequence is A - D - C - B which is in increasing order.

RRB JE ME (CBT I) Mock Test- 4 - Question 20

The ratio between the speeds of a truck, car and train is 3 : 8: 12. The car moved uniformly and covered a distance of 1040 km in 13 hours. What is the average speed of the truck and the train together?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 20 The ratio between the speeds of the truck, car, and train is 3:8:12

Given that the car covers 1040 km in 13 hours, the speed of the car 80 km/h

Also, if we assume that the speeds of the truck, car, and train are 3x, 8x and 12x

respectively, then

x = 10

Therefore, speed of truck 30 km/h

Speed of train = 120 km/h

The average speed of truck and train is calculated as:

2×30×120/30+120 = 48 km/h

RRB JE ME (CBT I) Mock Test- 4 - Question 21

A, B, and C contract a work for Rs. 550 together. A and B are supposed to do 7/11 of the work. The amount that C gets is:

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 21

RRB JE ME (CBT I) Mock Test- 4 - Question 22

The radius of a cylinder is the same as that of a sphere. There volumes are equal. The height of the cylinder is how many times of its radius?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 22 Radius of cylinder = Radius of sphere and volume of cylinder = volume of sphere

RRB JE ME (CBT I) Mock Test- 4 - Question 23

A train traveling at 65 kmph leaves Mumbai at 10 A.M. and another train travelling at 75 kmph starts at 12 Noon in the same direction. How many k.m. away from Mumbai will they be together?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 23 In two hours, the first train is 2 x 65 kms i.e, 130 kms ahead of the second train The second train moves 10 kms faster so it will meet the first train in (130 ÷ 10)

i.e.. 13 hours

∴ Distance travelled by the second train = 13 x 75 km = 975 km

Therefore after 975 km both train will meet.

RRB JE ME (CBT I) Mock Test- 4 - Question 24

If the angles of a pentagon are in the ratio 1 : 3 : 6 : 7 : 10, then the smallest angle is:

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 24 Suppose the angles of a pentagon are

x°, 3x°, 6x°, 7x°, 10x°

But x° + 3x° + 6x° + 7x° + 10x° = (2x5 -4) x 90°

or 27x° = 6 x 90°

or x = 20°

RRB JE ME (CBT I) Mock Test- 4 - Question 25

A bob of length 50 cm makes an arc of 16 cm during its motion. What will be the measure of the angle thus formed (approx.)?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 25 Radius = 50 cm

Arc = 16 cm

Let the angle be θ.

16 = θ/360×2×π×50 ⇒ θ = 8×36×7/5×22 ≈ 18o33 ≈ 18°35'

RRB JE ME (CBT I) Mock Test- 4 - Question 26

If the radius of a cylinder is tripled and the height is halved, what is the ratio between the new volume and the previous volume?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 26 Let the initial radius and height of the cylinder be r cm and h cm respectively.

Then, V1 = πr2 h and V2 = π.(3r).2.h/2 = 9/2 πr2h

New Volume/Previous Volume = 9/2πr2h/πr2h = 9/2 = 9:2

RRB JE ME (CBT I) Mock Test- 4 - Question 27

Find the value of

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 27

RRB JE ME (CBT I) Mock Test- 4 - Question 28

The sides of a triangle are 24 cm, 32 cm and 40 cm. What is the height of the perpendicular drawn on the longest side?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 28 The triangle thus formed is a right-angled triangle.

Thus, the length of perpendicular on the largest side

= 32×24/40 = 19.2 meter.

RRB JE ME (CBT I) Mock Test- 4 - Question 29

If x sin3 θ + ycos3 θ = sin θ.cos θ and xsin θ = ycos θ, sin θ≠ 0, cos θ≠ 0, then x2 + y2 is:

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 29

RRB JE ME (CBT I) Mock Test- 4 - Question 30

If 42x = 1/32 then x is:

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 30 42x = 1/32

or (22)2x = 1/25

or 24x = 2-5

∴ 4x = -5

or x = −5/4

RRB JE ME (CBT I) Mock Test- 4 - Question 31

T is the sister of B. K is the brother of R and the father of T. M is the wife of R. G is the father of K. S is the mother-in-law of M. Q is the sister-in-law of R. How is Q related to T?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 31 Q is the mother of T.

RRB JE ME (CBT I) Mock Test- 4 - Question 32

Sonu walked a certain distance and rode back taking a total time of 37 minutes. Sonu could walk both ways in 55 minutes. How long would it take Sonu to ride both ways?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 32 Let the distance be 'x' km

(Time taken to walk x km) + (Time taken to ride x km) = 37 min

(Time taken to walk 2x km) + (Time taken to ride 2x km) = 37*2 = 74 min

But, the time taken to walk 2x km = 55 min

Hence, the time taken to ride 2x km = 74 - 55 = 19 minutes

RRB JE ME (CBT I) Mock Test- 4 - Question 33

Which of the following are the amphibious animals, that is creatures who survive both on territorial land and water ecosystems?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 33 Amphibians inhabit a wide variety of habitats with most species living within terrestrial, arboreal or freshwater aquatic ecosystems. Thus, amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs.
RRB JE ME (CBT I) Mock Test- 4 - Question 34

Each question given below consists of a statement, followed by two arguments I and II. You have to decide which of the arguments is a ‘strong’ argument and which is a ‘weak argument.

Statement: Should one close relative of a retiring government employee be given a job in government in India?

Arguments:

I. Yes, where else will the relative get a job like this?

II. No, it will close doors of government service to competent and needy youth.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 34 I is weak because we can’t vitiate the system for one individual. II is strong. As close relatives of government employees will fill the seats, competent and other needy youths won’t get an entry for govt. services.
RRB JE ME (CBT I) Mock Test- 4 - Question 35

Select the odd one out: ∜0.0256, [16 * 10-2], [83 ÷ (123 - 448)] and [(0.2)2 * 10].

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 35 ∜0.0256 = 0.4

[16 * 10-2] = 0.16

[83 ÷ (123 - 448)] = [512 ÷ 1280] = 0.4

[(0.2)2 * 10] = 0.04 * 10 = 0.4

RRB JE ME (CBT I) Mock Test- 4 - Question 36

In a certain code language PRINCE is coded as IGPJVT the MOTHER is coded as

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 36 If we take A = 1, B = 2, C = 3, and so on, the nth letter is replaced by (25 - n).

e.g. A by X, B by W, C by V, D by U, E by T, etc.

RRB JE ME (CBT I) Mock Test- 4 - Question 37

In each of the following questions, you are given a figure (X) followed by four alternative figures (a), (b), ©, and (d) such that figure (X) is embedded in one of them. Trace out the alternative figure, which contains fig. (X) as its part.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 37

RRB JE ME (CBT I) Mock Test- 4 - Question 38

Find the odd option from given alternatives.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 38 Option A has 2 vowels A and E.

Option B, C and D has only one vowel.

RRB JE ME (CBT I) Mock Test- 4 - Question 39

Each of the following figures consists of a 3x3 matrix. The matrix consists of 9 different figures. The figures are such that 3 of them bear a similar relation and from group 1, another 3 figures bear a relation and form group 2 and similarly the rest 3 bear another relationship and form group 3. Find the option which shows all three groups in the correct sequence.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 39 Group 1: (1, 4, 6) - the number of spokes of star inside the circle decrease in each step.

Group 2: (5, 3, 9) - two sides are removed in each step.

Group 3: (7, 2, 8) - one part is filled/shaded in each step.

RRB JE ME (CBT I) Mock Test- 4 - Question 40

Identify the diagram that best represents the relationship among the given classes.

Train, vehicle, bus

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 40 The correct representation is option (c) as, all trains are vehicles and all buses are vehicles but, trains and buses are not related to each other.

We get,

RRB JE ME (CBT I) Mock Test- 4 - Question 41

Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question.

What does '\$' mean in a code language?

I. '5 \$ # 3' means 'flowers are really good'.

II. '7 # 3 5' means 'good flowers are available'.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 41 From I and II both, # 3 5 means 'flowers are good'.

Thus \$ stands for really.

RRB JE ME (CBT I) Mock Test- 4 - Question 42

100-degree Fahrenheit is equal to _______degree Celsius.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 42 (100°F − 32) X 5/9 = 37.778°C (Here, F = Fahrenheit, C = Celsius)

So, 100-degree F is around 37-degree Celsius.

RRB JE ME (CBT I) Mock Test- 4 - Question 43

Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question:

On which day Ravi got promoted?

I. His friend correctly remembers he got promoted after 12th and before 20th while his mother correctly remembers that he got promoted after 15th.

II. His father correctly remembers that he got promoted after Monday but before Friday.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 43 Friend: 13,14,15,16,17,18,19

Mother: 16, 17, 18......

So, we can't find the exact date.

Hence, statement I is not sufficient.

RRB JE ME (CBT I) Mock Test- 4 - Question 44

Find the next term in the series.

194, 219, 283, 404, 600, ?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 44

The pattern is as follows:

194 + 52 = 219

219 + 82 = 283

283 + 112 = 404

404 + 142 = 600

600 + 172 = 889

RRB JE ME (CBT I) Mock Test- 4 - Question 45

In each of the questions below, an assertion (A) is given, followed by a reason (R) which may or may not explain the assertion. From the given options, choose the right answer.

A: Vaccines help to diagnose diseases.

R: Vaccines must be given to children.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 45 Vaccines help to prevent and not diagnose diseases; therefore, statement A is incorrect while statement R is correct as vaccines will help children avoid diseases; hence, are a must. Therefore, (d) is the right answer.
RRB JE ME (CBT I) Mock Test- 4 - Question 46

K starts walking straight and then turns right and walks some distance. Then he takes left to face north and walks some distance. D starts walking at the same time and at the same starting point as K but facing the opposite direction of K. D also walks in the directions exactly opposite to the one K takes every time. M is 15 meters to the west of K's starting point. What is the position of D's final position with respect to M?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 46

RRB JE ME (CBT I) Mock Test- 4 - Question 47

Expansion of DNA is___________.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 47 DNA or Deoxyribonucleic acid is a molecule composed of two chains that coil around each other to form a double helix carrying the genetic instructions used in the growth, development, functioning, and reproduction of all known living organisms and many viruses.

It is found in the nucleus of the cell.

RRB JE ME (CBT I) Mock Test- 4 - Question 48

In order to complete the set, which one of the following set of letters should be placed in the gaps sequentially?

b y d w _ u _ _ _

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 48 The series follows the pattern 2nd letter, 25th letter, 4th letter, 23rd letter, 6th letter, 21st letter..

Hence the series is: b y d w f u h s j

RRB JE ME (CBT I) Mock Test- 4 - Question 49

Find out from amongst the four alternatives as to how the pattern would appear on the sheet when the sheet is folded at the dotted line and is punched as given.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 49 The paper when opened would look like the one given in figure d
RRB JE ME (CBT I) Mock Test- 4 - Question 50

In each of the questions below, one statement is given, followed by two conclusions which may or may not follow. From the options below, choose the one that reflects the correct choice of conclusion(s) that follows/follow.

Bullying has always been a problem for young people, but it is only recently that bullying could be done over a long distance and potentially without knowing who the bully is. Bullying through the internet or phones, cyberbullying, has however with the spread of first the internet and then smartphones become as much of a problem and one that is harder to deal with than offline bullying.

I. Some countries do have jail time as a potential punishment for cyberbullying.

II. Harassment online can be a crime just like harassment offline is widely accepted but there is less consensus about what to do to punish extreme cases.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 50 Nothing in particular has been talked about online harassment as a crime and its potential punishment; therefore, none of the statements can be concluded from the main statement. Hence, (d) is the right answer.
RRB JE ME (CBT I) Mock Test- 4 - Question 51

In each of the questions below, a statement/passage is given. From the options below, choose the one that reflects the correct choice of assumption(s) that follows/follow.

South Africa should be given a chance to host the Summer Olympic Games in the future.

I. South Africa has a track record of successfully hosting major sporting events.

II. The climate of South Africa suits most of the games which are a part of Summer Olympic Games.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 51 Both statements I and II are strong assumptions for South Africa to be given a chance to host Summer Olympics Games; hence, (c) is the right answer.
RRB JE ME (CBT I) Mock Test- 4 - Question 52

P's height is less than T's as well as S's height. Q's height is less than P's height. R's height is less than T's height. T is not the tallest. U's height is less than R's height. Who is taller than only two persons, among the given persons?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 52

P's height is less than T's as well as S's height.

i.e.

Case I:

P < S < T

Case II:

P < T < S

Now,

Q's height is less than P's height.

Case I:

Q < P < S < T

Case II:

Q < P < T < S

Now,

R's height is less than T's height.

R < T

And, U's height is less than R's height.

U < R < T

Since,

T is not the tallest, so, case I will become invalid.

From case II, there can be multiple possibilities as there is no relation given between U/R and P or, U/R and Q.

Q < P < U < R < T < S

Or

Q < U < P < R < T < S

Or

Q < U < R < P < T < S

Or

U < R < Q < P < T < S

Or

U < Q < R < P < T < S

Or

U < Q < P < R < T < S

Thus, either U or P or R or Q, is taller than only two persons, among the given ones. Hence, cannot be determined.

RRB JE ME (CBT I) Mock Test- 4 - Question 53

How many triangles are present in the given figure?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 53

There are 25 triangles in the given figure.

Triangles are - AOB, ROP, BOC, PON, COD, COQ, QOD, NOM, NOL, LOM, LOK, KOJ, IOJ, GOF, AOG, AOF, ROI, ROJ, NOK, JOP, PJN, KJN, PJK, PKN ,KOM.

RRB JE ME (CBT I) Mock Test- 4 - Question 54

In each of the questions below are given some statements followed by some conclusions. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

Statements:

All arcs are tangents.

No tangent is a secant.

All secants are circles.

Conclusions:

I. No arc is a circle.

II. Some secants being arcs is a possibility.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 54

Some secants cannot be arcs as in that case, they will be tangents which contradicts the given statement.

RRB JE ME (CBT I) Mock Test- 4 - Question 55

In the following question, select the related number from the given alternatives.

102:2601∷?:2401

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 55 When we look at the question we can interpret it as follows

102 ⇒ 102/2 = 51 ⇒ 51*51 = 2601

Similarly, 24011/2 = 49 ⇒ 49*2 = 98

RRB JE ME (CBT I) Mock Test- 4 - Question 56

Which of the following Dance form is famously performed in the state of Andhra Pradesh & Telangana?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 56

RRB JE ME (CBT I) Mock Test- 4 - Question 57

Which of the following countries recently rolled out the world's first hydrogen-powered train?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 57 Germany recently rolled out world's 1st Hydrogen-powered eco-friendly train running between 2 North-German cities at a stretch of 62 miles

The train was built by French Railroad company Alstom and is called the Coradia iLint.

It is designed to run on non-electrified lines and has very low levels of noise.

RRB JE ME (CBT I) Mock Test- 4 - Question 58

India's 1st Nuclear reactor, ____________ was recently upgraded to a higher capacity and inaugurated at BARC centre.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 58 "Apsara", was the first Nuclear reactor in Asia that became operational in the campus of Bhabha Atomic Research Centre (BARC) in 1956.

Recently, it was upgraded indigenously to increase production of radio-isotopes for medical application by about 50% and would be extremely helpful for research in nuclear physics, material science and radiation shielding.

RRB JE ME (CBT I) Mock Test- 4 - Question 59

Who recently inaugurated the 'Smart Border Fence' under the Comprehensive Integrated Border Management System (CIBMS) programme?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 59 Recently, Union Home Minister Rajnath Singh inaugurated 2 smart border fencing pilot projects under the Comprehensive Integrated Border Management System (CIBMS) programme at Jammu.

The 2 border fencing projects would cover a 5.5 km stretch along Jammu border, and is a state-of-art high-tech surveillance system which will create an invisible electronic barrier on land, water, air and underground, helping the Border Security Force (BSF) detect and foil infiltration bids in the most difficult terrains.

RRB JE ME (CBT I) Mock Test- 4 - Question 60

Who is the current Governor of the .Reserve Bank of India?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 60 Currently, the 25th governor of the Reserve Bank of India is Mr. Shaktikanta Das, a member of the 15th Finance Commission of India and IAS officer of the 1980 batch. From 2014 to 2015, He also served as the Union Revenue Secretary under the Ministry of Finance.
RRB JE ME (CBT I) Mock Test- 4 - Question 61

Who was recently adjudged the winner of Man Booker Prize 2018 for her novel, 'Milkman'?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 61 Irish author Anna Burns was awarded The Man Booker Prize 2018 for her novel, 'Milkman'.

The Man Booker Prize is a literary prize awarded each year for the best fiction novel originally written in English & published in the UK in the year of the prize, regardless of the nationality of the author.

RRB JE ME (CBT I) Mock Test- 4 - Question 62

Who among the following is NOT a Bharat Ratna awardee?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 62 JRD Tata was awarded Bharat Ratna in 1992. He was a successful Indian business tycoon and aviation pioneer who created India's first airline service, TATA AIRLINES.

M S Subbalakshmi was awarded in 1998. MS Subbulakshmi was a gifted Carnatic classical singer who became a symbol of women empowerment in her times.

Nelson Mandela was awarded in 1990. He was a former president of South Africa and he helped bringing an end to apartheid and had been a global advocate for human rights.

RRB JE ME (CBT I) Mock Test- 4 - Question 63

US Space Agency, NASA recently launched _________ to precisely measure changes in Earth's ice sheets & melting of glaciers.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 63 Recently, US Space agency NASA launched \$1 bn worth ICESat-2 which is designed to precisely measure changes in Earth's ice sheets, glaciers & glacial vegetation among others.
• Ice, Cloud and land Elevation Satellite-2 is the expansion for ICESAT-2

• It will orbit Earth carrying a photon-counting laser altimeter to precisely determine the scientific calculations in the mission

RRB JE ME (CBT I) Mock Test- 4 - Question 64

Match the following Institutions with their respective locations.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 64

RRB JE ME (CBT I) Mock Test- 4 - Question 65

Who among the following recently won 'Champions of the Earth' UN Award?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 65 PM Modi and Emmanuel Macron jointly won the United Nation's highest Environmental award in the year 2018.

United Nations Secretary General Antonio Guterres presented the award to prime minister in a function in New Delhi.

The award was given in recognition to their Policy Leadership for pioneering work in championing the International Solar Alliance and promoting new areas of levels of cooperation on environmental action.

RRB JE ME (CBT I) Mock Test- 4 - Question 66

Recently, Cabinet Committee on Economic Affairs approved setting up of ____________ & Infrastructure Development Fund with an outlay of Rs 10,881 cr from 2018 to 2029 fiscal.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 66 Recently, CCEA approved setting up of Dairy Processing and Infrastructure Development Fund (DIDF) with a total scheme outlay of Rs 10881 crore.

The project would be implemented by National Dairy Development Board (NDDB) and National Dairy Development Cooperation (NCDC).

The mandate of the fund is to build an efficient milk procurement system by setting up of

- chilling infrastructure & installation of electronic milk adulteration testing equipment.

- creation/modernization/expansion of processing infrastructure.

RRB JE ME (CBT I) Mock Test- 4 - Question 67

Which of the following is the tallest statue monument in the world?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 67

RRB JE ME (CBT I) Mock Test- 4 - Question 68

Namdapha National Park is situated in which Indian state?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 68 Namdapha National Park is situated in the North-Eastern state of Arunachal Pradesh.

It covers an area of about 2,000 km2 including a buffer zone of 177 sq. kms.

It has an exquisite biodiversity in terms of both flora & fauna.

Some rare species of animals such as snow leopards, clouded leopards, common leopards, tigers and even Red Pandas are found here.

RRB JE ME (CBT I) Mock Test- 4 - Question 69

Which Government entity was conferred Skoch Award for National Significance recently by the Think-tank Skoch?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 69 Skoch Award for National Significance was conferred to Ministry of New and Renewable Energy at New Delhi.

Ministry of New and Renewable Energy had played a critical role in installing about 73 GW renewable energy capacity providing 1 bn units of electricity in the country.

India ranks 4th in wind energy capacity & 5th in solar & total renewable energy capacity installed in the world.

RRB JE ME (CBT I) Mock Test- 4 - Question 70

South Asian Association for Regional Cooperation (SAARC) secretariat is in ___________.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 70 Headquarters of SAARC is in Kathmandu, Nepal.

SAARC, a multilateral organisation established in 1985, comprises of 8 Member States: Afghanistan, Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan and Sri Lanka.

Objective: To promote the welfare of the peoples of South Asia and to improve their quality of life; to accelerate economic growth, social progress and cultural development in the region

RRB JE ME (CBT I) Mock Test- 4 - Question 71

Which of the following is the product of the process of photosynthesis?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 71 Photosynthesis is the name given to the set of chemical reactions performed by plants to convert energy from the sun into chemical energy in the form of sugar. Specifically, plants use energy from sunlight to react carbon dioxide and water to produce sugar (glucose) and oxygen.
RRB JE ME (CBT I) Mock Test- 4 - Question 72

Which one of the following types of medicines is used for treating indigestion?

I. Antibiotic

II. Analgesic

III. Antacid

IV. Antiseptic

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 72 Antacid is a substance which neutralizes stomach acidity and is used to relieve heartburn, indigestion or an upset stomach.

Antibiotic : A drug used to treat bacterial infections. Antibiotics have no effect on viral infections. Originally,

An analgesic or painkiller is any member of the group of drugs used to achieve analgesia, relief from pain. Analgesic drugs act in various ways on the peripheral and central nervous systems

Antiseptics are used to kill or eliminate microorganisms and/or inactivate virus on living tissues

RRB JE ME (CBT I) Mock Test- 4 - Question 73

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 73 The buckling loads depend upon cross-sectional area, slenderness ratio, modulus of elasticity.
RRB JE ME (CBT I) Mock Test- 4 - Question 74

What is the flavor of amyl acetate?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 74 Amyl acetate is used to give banana flavor to the food product and it belongs to ester group.
RRB JE ME (CBT I) Mock Test- 4 - Question 75

The nerves which are attached to the brain and emerge from the skull is_________?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 75 Cranial nerves are the nerves that emerge directly from the brain (including the brainstem).

The cranial nerves are considered components of the peripheral nervous system (PNS), although on a structural level the olfactory (I), optic (II), and trigeminal (V) nerves are more accurately considered part of the central nervous system (CNS)

RRB JE ME (CBT I) Mock Test- 4 - Question 76

What happens If an egg with shell is placed in a microwave oven?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 76 If an egg with shell is placed in a microwave oven, the egg shell will explode. It is because there is no control on the rise of temperature while heating in microwave and the water content in albumen (actually yolk also contains water but it is mainly fat. Albumen has relatively more water content) gets converted into steam and the pressure inside the shell increases. Hence it explodes
RRB JE ME (CBT I) Mock Test- 4 - Question 77

Which of the following is natural fiber ?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 77 Natural fibres are defined as substances produced by plants and animals that can be spun into filament, thread or rope and further be woven, knitted, matted or bound. The most viable structural fibres typically derive from specifically grown textile plants and fruit trees. Natural fibers are good sweat absorbents and can be found in variety of textures.Natural fibers have advantages such as lower density, better thermal insulation, and reduced skin irritation.

Silk, animal fibre produced by certain insects and arachnids as building material for cocoons and webs, some of which can be used to make fine fabrics. In commercial use, silk is almost entirely limited to filaments from the cocoons of domesticated silkworms. the production of raw silk by means of raising caterpillars (larvae), particularly those of the domesticated silkworm is called sericulture.

Rayon was the first synthetic fabric ever created. It was developed as a less-expensive alternative to silk fabric and, appropriately, was dubbed artificial silk.

Rayon is a versatile fiber and is widely claimed to have the same comfort properties as natural fibers, although the drape and slipperiness of rayon textiles are often more like nylon. It can imitate the feel and texture of silk, wool, cotton and linen. The fibers are easily dyed in a wide range of colors.

Nylon was the first commercially successful synthetic thermoplastic polymer. Nylon is made of repeating units linked by amide links[12] similar to the peptide bonds in proteins.

Polyester is a generalised term for any fabric or textile, which is made using polyester yarns or fibres. It is a shortened name for a synthetic, man-made polymer, which, as a specific material, is most commonly referred to as a type called polyethylene terephthalate (PET). It is made by mixing ethylene glycol and terephthalic acid.

RRB JE ME (CBT I) Mock Test- 4 - Question 78

Magnetic effect of current was discovered by

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 78 Magnetic effect of current was discovered by Oersted.
RRB JE ME (CBT I) Mock Test- 4 - Question 79

Solenoid is a-

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 79 A solenoid is a coil of insulated or enameled wire wound on a rod-shaped form made of solid iron, solid steel, or powdered iron. Devices of this kind can be used as electromagnets, as inductors in electronic circuits, and as miniature wireless receiving antennas.
RRB JE ME (CBT I) Mock Test- 4 - Question 80

Which is the largest phylum in animal kingdom?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 80 Arthropoda, the largest phylum in the animal kingdom, which includes such familiar forms as lobsters, crabs, spiders, mites, insects, centipedes, and millipedes. About 84 percent of all known species of animals are members of this phylum.
RRB JE ME (CBT I) Mock Test- 4 - Question 81

What is the nature of an air bubble trapped in water?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 81 An air bubble trapped in water seems to be a convex lens but works as concave lens which means that it is diverging in nature not the converging one.
RRB JE ME (CBT I) Mock Test- 4 - Question 82

Light waves projected on oil surface shows many colours due to-

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 82 This is known as thin-film interference, because it is the interference of light waves reflecting off the top surface of a film with the waves reflecting from the bottom surface.
RRB JE ME (CBT I) Mock Test- 4 - Question 83

Which of the following is used in purification of water?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 83 Zeolite is used to purify water using permutit method.
RRB JE ME (CBT I) Mock Test- 4 - Question 84

A White Vitriol is ____________?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 84 Zinc sulphate is an inorganic compound and dietary supplement. As a supplement it is used to treat zinc deficiency and to prevent the condition in those at high risk.
RRB JE ME (CBT I) Mock Test- 4 - Question 85

‘Anvil’ is used in the work of

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 85 Anvils are as massive as they are practical, because the higher their inertia, the more efficiently they cause the energy of striking tools to be transferred to the work piece.In most cases the anvil is used as a forging tool.
RRB JE ME (CBT I) Mock Test- 4 - Question 86

In a nuclear power station, which one of the following is commonly used as a fuel for producing heat?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 86 Fuel is a complex mixture of the fission products, uranium, plutonium, and trans plutonium metals.
RRB JE ME (CBT I) Mock Test- 4 - Question 87

Depending upon the chemical nature butter can be called as…?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 87 Butter is a gel which is a colloidal solution in which dispersed phases liquid and dispersed medium is solid.
RRB JE ME (CBT I) Mock Test- 4 - Question 88

What is the pigment that is responsible for absorption of light in plants?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 88 Chlorophyll is the pigment that is responsible for absorption of light in plants.
RRB JE ME (CBT I) Mock Test- 4 - Question 89

Of which of the following factor is the speed of sound independent?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 89 Speed of sound remains unchanged with the increase or decrease in the pressure.
RRB JE ME (CBT I) Mock Test- 4 - Question 90

Which cell organelles possess another set of DNA inside the cell body?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 90 Mitochondria own another set of DNA molecule that enable it to perform the biological functioning inside the cell body at an optimum level i.e. why it is also known as the powerhouse of the cell.
RRB JE ME (CBT I) Mock Test- 4 - Question 91

Which of the following is not true about electromagnetic waves?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 91 Electromagnetic waves consist of electric and magnetic waves which change sinusoidally and are perpendicular to each other and the direction of propagation of the wave. These waves do not require any medium to travel and thus are able to travel in vacuum. All other options are correct except option C.
RRB JE ME (CBT I) Mock Test- 4 - Question 92

Fermi-Kurie plot is used for the study of which one of the physical properties?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 92 Kurie plot (also known as a Fermi–Kurie plot) is a graph used in studying beta decay developed by Franz N. D. Kurie, in which the square root of the number of beta particles whose momenta (or energy) lie within a certain narrow range, divided by the Fermi function, is plotted against beta-particle energy.
RRB JE ME (CBT I) Mock Test- 4 - Question 93

Who discovered the basic structure of atom?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 93 Ernest Rutherford established that atoms have nuclei which are made up of Neutron and Proton, and electrons revolve around it.
RRB JE ME (CBT I) Mock Test- 4 - Question 94

When Bleaching Powder is mixed in water which gas is released?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 94

Ca(OCl)2+ 2H2O → Ca(OH)2+Cl2

RRB JE ME (CBT I) Mock Test- 4 - Question 95

Carborundum is another name of which of the following?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 95 Silicon carbide (SiC), also known as carborundum is a compound of silicon and carbon with chemical formula SiC.
RRB JE ME (CBT I) Mock Test- 4 - Question 96

At which angle are the two plane mirror inclined to each other in periscope?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 96 Periscope is a device which is used in submarine in order to view the moment at sea surface and in this two plane mirror inclined to each other at 45 Degree.
RRB JE ME (CBT I) Mock Test- 4 - Question 97

Producer gas mainly constitutes up of ….?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 97 Producer gas is a fuel gas made from coke, anthracite and mainly constitutes carbon monoxide and nitrogen
RRB JE ME (CBT I) Mock Test- 4 - Question 98

On which of the following factor does the working of optical fibre depends?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 98 Optical fibre is a thin flexible fibre which is used to transmit light signal and it works on total internal reflection
RRB JE ME (CBT I) Mock Test- 4 - Question 99

Which of the following is the common name of Phosgene?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 99 Phosgene is the chemical compound with the formula COCl2. A colorless gas, in low concentrations its odor resembles freshly cut hay or grass
RRB JE ME (CBT I) Mock Test- 4 - Question 100

The SI unit of power—

Detailed Solution for RRB JE ME (CBT I) Mock Test- 4 - Question 100 The SI unit of power is the watt (W), which is equal to one joule per second.

## RRB JE Mock Test Series for Mechanical Engineering (ME)

158 tests
 Use Code STAYHOME200 and get INR 200 additional OFF Use Coupon Code
Information about RRB JE ME (CBT I) Mock Test- 4 Page
In this test you can find the Exam questions for RRB JE ME (CBT I) Mock Test- 4 solved & explained in the simplest way possible. Besides giving Questions and answers for RRB JE ME (CBT I) Mock Test- 4, EduRev gives you an ample number of Online tests for practice

158 tests