RRB JE ME (CBT I) Mock Test- 2

# RRB JE ME (CBT I) Mock Test- 2

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## 100 Questions MCQ Test RRB JE Mock Test Series for Mechanical Engineering (ME) | RRB JE ME (CBT I) Mock Test- 2

RRB JE ME (CBT I) Mock Test- 2 for Railways 2023 is part of RRB JE Mock Test Series for Mechanical Engineering (ME) preparation. The RRB JE ME (CBT I) Mock Test- 2 questions and answers have been prepared according to the Railways exam syllabus.The RRB JE ME (CBT I) Mock Test- 2 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- 2 below.
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RRB JE ME (CBT I) Mock Test- 2 - Question 1

### Walking at 6/7th of his usual speed, a man is 12 minutes late. The usual time taken by him to cover that distance is-

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 1 S1 : S2 = 6 : 7

T1 : T2 = 7 : 6 (S ∝ 1/T)

Difference between

T1 & T2 = 1(7 - 6 = 1)

If 1 = 12 min.

then 6 = 72 min. 1 hrs 12 min

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

### In selling an article for ₹ 76, there is a profit of 52%, if it is sold for ₹ 75, then the profit percent will be.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 2 152% = 76

C.P = Rs. 50

New selling price = 75

RRB JE ME (CBT I) Mock Test- 2 - Question 3

### The lines x + 3y = 4 and 3x – y = 6 intersect the y – axis at A and B respectively. AB = ?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 3

x + 3y = 4 --------- L1 L1

L1 cuts y axis at B (0, -6)

3x – y = 6 -----------L2

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

Read the following bar graph which represents a company's manufacturing and selling(in lakh) of product from 2002 to 2008 and answer the following questions.

Approximately what is the average number of items sold for all the years together?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 4 Average = (60+55+65+50+60+80+75)/7 = 445/7 = lakh

≃ 63 lakh(Appx.)

RRB JE ME (CBT I) Mock Test- 2 - Question 5

Area of the circle is equal to the area of a rectangle having a perimeter of 100 cm and length is more than the breadth by 6 cm. What is the diameter of the circle?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 5 Let breadth = x, then length

= (x + 6)

∴ 2(x + x + 6) = 100

⟹ 2x + 6 = 50

⟹ x = 22 cm

∴ breadth = x 22 cm & length

= 22 + 6 = 28 cm

∴ Area of circle = Area of rectangle

⟹ π r2 = 22 x 28

⟹ 7 x 2 = 14 cm

∴ Diameter = 2r = 28 cm

RRB JE ME (CBT I) Mock Test- 2 - Question 6

Seema purchased an item for Rs.9,600 and sold it for a loss of 5 percent. From that money, she purchased another item and sold it for a gain of 5 percent. What is her overall gain/ loss?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 6

Loss = 9600 - 9576 = 24

RRB JE ME (CBT I) Mock Test- 2 - Question 7

A mixture of 40 litres of milk and water contains 10% water. How much water must be added to make water 20% in the new mixture?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 7 Milk = 90/100 × 40 = 36 litres

water = 5 litres

∴ 5x + 20 = 40 + x

x = 5

RRB JE ME (CBT I) Mock Test- 2 - Question 8

The average weight of 8 persons increases by 2.5 kg when one person whose weight is 65 kg is replaced by a new person. What Is the weight of the new person?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 8 Total increase in weight due to addition of new persons = 2.5 × 8 = 20 kg

Weight of new person = 65 + 20 = 85 kg

RRB JE ME (CBT I) Mock Test- 2 - Question 9

Read the following bar graph which represents a company's manufacturing and selling(in lakh) of product from 2002 to 2008 and answer the following questions.

During which year the percentage of items unsold was the highest?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 9

It was the highest in 2006.

RRB JE ME (CBT I) Mock Test- 2 - Question 10

Read the following bar graph which represents a company's manufacturing and selling(in lakh) of product from 2002 to 2008 and answer the following questions.

Approximately what is the average number of items unsold for all the years together?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 10 Average = (10+10+15+10+15+10+5)/7 = 75/7 lakh

≈ 1,07,000 lakh(Aprx)

RRB JE ME (CBT I) Mock Test- 2 - Question 11

A, B and C can finish a work in 8 days, 10 days and 12 days respectively. They worked together and get Rs. 740. How much will each of them get?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 11 Given,

1 day work of A, B, & C is 1/8 , 1/10 & 1/12 respectively

therefore, Their share in money = 1/8 : 1/10 : 1/12 = 15 : 12 : 10

Sum of their share = 15 = 12 + 10 = 37

RRB JE ME (CBT I) Mock Test- 2 - Question 12

A room 8 m long, 6 m broad and 3 m height has two windows 1 1⁄2 m × 1 m and a door 2 m × 1 1⁄2 m. Find the cost of papering the walls with paper 50 cm wide at 25 paise per meter.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 12 Area of walls = 2(length + breadth) x height

= 2(8 + 6) x 3 = 84 m2

Area of two windows and a door

∴ Area to be covered = 84 - 6

= 78m2

Area of paper = Area to be covered = 78

⟹ (length x breadth) of paper 78

= 156 m

RRB JE ME (CBT I) Mock Test- 2 - Question 13

Two circles with radii R and r touch each other externally. A direct common tangent with length l is drawn to the circles. Which is true?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 13 Length of direct common tangent l2 = d2 – (R – r)2

Here, d = R + r

Therefore, l2 = (R + r)2 – (R – r)2 = 4Rr

RRB JE ME (CBT I) Mock Test- 2 - Question 14

A certain sum, invested at 4% per annum at compound interest, compounded half-yearly, amounts to Rs. 7,803 at the end of one year. Find the sum.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 14 Let the sum be Rs. P.

As the interest is compounded half-yearly,

∴ R = 2% T, = 2 half years

Alternatively:-

If interest is compounded half-yearly rate will be 2%

C.l. for 2 years = 4.04%

RRB JE ME (CBT I) Mock Test- 2 - Question 15

Read the following bar graph which represents a company's manufacturing and selling(in lakh) of product from 2002 to 2008 and answer the following questions.

The number of items manufactured in 2007 is what percent of the total number of items manufactured in all the years together? (Rounded off to two digits after decimal)?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 15

RRB JE ME (CBT I) Mock Test- 2 - Question 16

Find the measure of an angle which is a complement of 50°.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 16 Let the measure of angle = x°

measure of its complement = 50°

∴ x° + 50°= 90° ⇒ x° = 40°

RRB JE ME (CBT I) Mock Test- 2 - Question 17

If sin (10° 6’ 32") = a, then the value of cos (79° 53’ 28”) + tan (10° 6’ 32”) is:

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 17 cos° 79 53' 28'' + tan 10° 6' 32''

RRB JE ME (CBT I) Mock Test- 2 - Question 18

If cos T = 3/5 and if sin R = 8/17, where T is in the fourth quadrant and R is in the second quadrant, then cos (T-R) is equal to:

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 18

We have

cos T = 3/5

(since T is IV quadrant)

(since R is II quadrant)

Now, cos (T-R) = cos T cos R + sin T sin R

RRB JE ME (CBT I) Mock Test- 2 - Question 19

There are 13 white and 7 black balls in a bag. Two balls are drawn at random. What is the probability that they are of the same colour?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 19 Probability that both balls are of the same colour =

RRB JE ME (CBT I) Mock Test- 2 - Question 20

The ratio between the angles of a quadrilateral is 3:4:6:7. Half of the smallest angle of a quadrilateral is the angle of a cyclic quadrilateral. Find another angle of the cyclic quadrilateral?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 20 Let smallest angle is 3x

So,

3x + 4x + 6x + 7x = 360°

Smallest angle = 54°

According to given condition one angle of Cyclic quadrilateral = 27°

Another = 180 – 27 = 153°

RRB JE ME (CBT I) Mock Test- 2 - Question 21

A, B and C divide an amount of Rs. 9,915 amongst themselves in the ratio 3:5:7 respectively. What is the C’s share in the amount?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 21 A : B : C

3 : 5 : 7

Sum of their ratio = 3 + 5 + 7

= 15 units

Share of C = 7/15 × 9915 = 4,627

RRB JE ME (CBT I) Mock Test- 2 - Question 22

60 boys working 7 hours a day can do work in 18 days. In how many days will 28 boys working 9 hours a day do the same work?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 22 Using the formula M1D1H1W2 = M2D2H2W1

Since work is the same for the two cases

M1D1H1 = M2D2H2

RRB JE ME (CBT I) Mock Test- 2 - Question 23

What should come in place of the question mark (?)?

(833.25 – 384.45) ÷ 24 = ?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 23 (d) ? = (833.25–384.45)/24 = 448.8/24 = 18.7
RRB JE ME (CBT I) Mock Test- 2 - Question 24

The average of three numbers is 135. The largest number is 195 and the difference between the other two is 20. The smallest number is:

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 24 According to the question,

195+ x + x + 20 = 135 x 3

⟹ 2x + 215 = 405

⟹ 2x = 405 - 215 = 190

∴ x = 190/2 = 95

= smallest number

RRB JE ME (CBT I) Mock Test- 2 - Question 25

Distance between the parallel lines 3x + 4y – 15 = 0 and 9x + 12y – 20 = 0 is

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 25 3x + 4y - 15 = 0

Or 9x + 12y - 45 = 0 --------- (1)

and 9x + 12y - 20 = 0 --------- (2)

The distance between two parallel lines

ax + by + c1 = 0 and ax + by + C2 = 0 is

= 25/15 = 5/3 units

RRB JE ME (CBT I) Mock Test- 2 - Question 26

In a container of 56 litres the ratio of petrol to oil is 6:1. How much oil must be added to the mixture to make this ratio 2:1?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 26 Quantity of petrol = (6/7) x 56 = 48 Litre

Quantity of oil = (1/7) x 56 = 8 litre

Given, New Ratio = 48/8+x = 12

48 = 16 + 2x

2x = 48 – 16

2x = 32

x = 16

16 litre is to be added

RRB JE ME (CBT I) Mock Test- 2 - Question 27

'A' starts a business with ₹ 3,500 and after 5 months, B joins with A as his partner. After a year, the profit is divided in the ratio 2:3 what is B's contribution to the capital?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 27 Let B's investment be Rs x then

⟹ 6000 x 3 = 2x

⟹ x = ₹9,000

RRB JE ME (CBT I) Mock Test- 2 - Question 28

If a = 12, b = 13 and c = 14, then the value of b² c² + c² a² + a² b² – a⁴ – b⁴ – c⁴ is.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 28 b² c² + c² a² + a² b² – a⁴ – b⁴ – c⁴

= −12(2a⁴ + 2b⁴ + 2c⁴ – 2a² b² – 2b² c² – 2c² a²)

= −12[(a² − b²)² + (b² – c²)² + (c² – a²)²]

= −12[(144 − 169)² + (169 – 196)² + (196 – 144)²]

= −12[( −25)² + (27)² + (52)²] = –2029

RRB JE ME (CBT I) Mock Test- 2 - Question 29

The midpoint of the line segment joining (3,-8) and (x + 2, -2) is (4, -5). What is the value of X?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 29 Midpoint of (x1, y1) and (x2, y2)

X = (x1 + x2)/2

4 = (3 + x + 2)/2

⇒ (x+5)/2 = 4 ⇒ x = 3

RRB JE ME (CBT I) Mock Test- 2 - Question 30

A man saves 25% of his salary. If due to price rise he increases his monthly expenses by 25% and he is able to save only Rs. 25 per month. Find his monthly salary.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 30 Expenses before price rise = 100-25 = 75

25% increase in expenses = 100+25

= Rs. 125

Monthly expenses

= 375/4

If saving is 25/4 then salary = 100

If saving is 25 then salary

= Rs. 400

RRB JE ME (CBT I) Mock Test- 2 - Question 31

If in the word EMBLAZONER the position of the first and the sixth letters are interchanged, the second and seventh letters are interchanged and so on up to the fifth and the tenth letters. Then which will be the fourth letter from the left end after interchange?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 31

E M B L A Z O N E R ⇒ Z O N E R E M B L A

Hence, E is the fourth letter from the left end after the interchange.

RRB JE ME (CBT I) Mock Test- 2 - Question 32

The diagram given below represents owner-broker and worker. Identify the region which represents all the three i.e. owner, broker and worker.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 32 T is common to all the regions
RRB JE ME (CBT I) Mock Test- 2 - Question 33

DIRECTIONS: A jeweller has five diamond stones, each having a different weight.

Statement (a): Stone D weighs twice as much as stone E.

Statement (b): Stone E weighs four and one-half times as much as stone F.

Statement (c): Stone F weighs half as much as stone G.

Statement (d): Stone G weighs half as much as stone H.

Statement (e): Stone H weighs less than stone D but more than stone F.

Which of the following is the lightest in weight?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 33

⇒ D= 2E

⇒ E = 4.5 F

⇒ E=1/2 G

⇒ G =1/2 H

⇒ D > H > F

So, the order of weights can be D > H > G>E > F.

RRB JE ME (CBT I) Mock Test- 2 - Question 34

Six friends P, Q, R, S, T and U are standing around a circular park facing towards the centre. The angle made at the centre of the circle by a straight line from P and Q is 180o, from Q and R is 120o, from R and S 180o. T is not standing on the immediate left of R while R is not on the immediate right of P. On the basis of the above information which of the following statements is definitely true?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 34 So, Q is standing between S and U

RRB JE ME (CBT I) Mock Test- 2 - Question 35

DIRECTIONS: In the question below, there are few statements followed by few conclusions. You have to take the given statements to be true even if they seem to be at variance with commonly known facts and then decide which of the given conclusions logically follow(s) from the given statements.

Statements:

All books are eyes.

Some eyes are pens.

All pens are pencils.

Conclusions:

I. Some pencils are books.

II. Some pencils are eyes.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 35

If only Conclusion II follows.

RRB JE ME (CBT I) Mock Test- 2 - Question 36

In the following diagram, circle represent police officer, triangle represent corrupt, square represents writer and rectangle represents married.

The area representing unmarried police officers who are not corrupt but are writer is:

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 36 The number representing the required area is 8.
RRB JE ME (CBT I) Mock Test- 2 - Question 37

Ram went 15 km to the West from my house then turned left and walked 20 km. He then turned East and walked 25 km and finally turning left covered 20 km. How far was he from my house?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 37 Suppose my house is at P. from P Ram walks 15 km towards West and reaches Q. At Q he turns left and walks 20 km to reach R. At R, he turns east and walks 25 km to reach S. At S, he turns left and walks 20 km to reach T. It is evident from the figure that

TP = TQ - PQ and TQ = RS

TP = RS - PQ = 25 - 15 = 10 km

RRB JE ME (CBT I) Mock Test- 2 - Question 38

There are 30 plants of Badam, Banana, Apple and Pomegranate in a row. There is one pair of Pomegranate plants after Badam and Banana and Pomegranate plants are followed by one Badam and one Apple plant and so on. If the row begins with a plant of Badam, then which of the following will be the last in the row?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 38

RRB JE ME (CBT I) Mock Test- 2 - Question 39

Three of the following four are alike in a certain way and so form a group. Which is the one that does not belong to that group?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 39

115 = 23 × 5

161 = 23 × 7

253 = 23 × 11

391 = 23 × 17

345 = 23 × 5 × 3

RRB JE ME (CBT I) Mock Test- 2 - Question 40

A cage has 21 rabbits. All but 14 died. How many rabbits were left in the cage?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 40 All but 14 died means all died except 14.So,left rabbits = 14.
RRB JE ME (CBT I) Mock Test- 2 - Question 41

Find the missing term:

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 41 The pattern in the question is

42 + 52 = 16 + 25 = 41,

22 + 12 = 4 + 1 = 5

72 + 62 = 49 + 36 = 85

Hence option (c) is the correct answer.

RRB JE ME (CBT I) Mock Test- 2 - Question 42

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

MUTE: MOUNTAIN

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 42 Mute is the character of a mountain similarly roaring is the character of the ocean.
RRB JE ME (CBT I) Mock Test- 2 - Question 43

DIRECTIONS: A word is represented by only one set of numbers as given in anyone of the alternatives. The set of numbers given in the alternatives are represented by two classes of alphabets as in the 2 matrices given below. The columns and rows of Matrix I are from 0 to 4 and that of Matrix II from 5 to 9. A letter can be represented first by its row and next by its column number. e.g., ‘C’ can be represented by 02, 21, etc. ‘T’ can be represented by 65, 96 etc. Similarly, you have to identify the correct set for the word given below.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 43 According to the question,

A = 75, 56, 87, 68, 99

D = 00, 31, 12, 43, 24

J = 85, 66, 97, 78, 59

U = 95, 76, 57, 88, 69

S = 55, 86, 67, 98, 79

T = 65, 96, 77, 58, 89

So, ADJUST = 87, 31, 66, 69, 86, 89

RRB JE ME (CBT I) Mock Test- 2 - Question 44

DIRECTIONS: Study the following information to answer the given questions

In a certain code:

‘swords hidden in the area’ is written as ‘white black yellow red’

‘ready swords for attack’ is written as ‘grey pink red green’

‘hidden for own safety’ is written as ‘silver-grey violet white’

‘own area under attack’ is written as ‘violet-blue pink black’

‘black pink yellow’ could be a code for which of the following?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 44 From 1 & 2

swords = red

From 1 & 3

hidden = white

From 3 & 4

own = violet

From 1 & 4

area = black

From 1

in = yellow

From 2 & 3

for= grey

From 2

ready = green

From 3

safety = silver

From 4

under = blue

So, ‘black pink yellow’ is ‘Area in attack’

RRB JE ME (CBT I) Mock Test- 2 - Question 45

Sanjay says, “I have as many sisters as brothers.” Sarita says, “Each of us sisters has only half as many sisters as brothers.” Assuming that Sanjay and Sarita are brother and sister, how many brothers and sisters are there in the family?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 45 Let there are ‘b’ brothers and ‘s’ sisters, then according to Sanjay.

b-1 = s ….. (i)

According to Sarita, b = 2 (s-1) …… (ii)

On solving Eqs. (i) and (ii) b = 4 and s = 3

Thus, there are 4 brothers and 3 sisters

RRB JE ME (CBT I) Mock Test- 2 - Question 46

DIRECTIONS: Read the following information carefully to answer the questions that follow.

A is the father of C, but C is not his son. E is the daughter of C. F is the spouse of A. B is the brother of C. D is the son of B. G is the spouse of B. H is the father of G.

Who is the son of F?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 46 B is the son of A and F is the spouse of A, so B is the son of F.
RRB JE ME (CBT I) Mock Test- 2 - Question 47

DIRECTIONS: In the following question, continuous pattern series is given. Some of the letters of the series are missing. These missing letters are given in that order as one of the four alternatives below the series. Find out the correct alternatives.

n_pps_nsp_sn_sp_sn

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 47 Series pattern is : nsp/psn/nsp/psn/nsp/psn

∴ Required answer = snpnp

RRB JE ME (CBT I) Mock Test- 2 - Question 48

DIRECTIONS: Solve the following series?

B2F, G4K, L12P, Q38U, ?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 48 The series is as follows

V118Z will come in place of '?'.

RRB JE ME (CBT I) Mock Test- 2 - Question 49

DIRECTIONS: Choose the missing terms out of the given alternatives.

cx fu ir? ol ri

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 49 The first letter of each term is moved three steps forward and the second letter is moved three steps backwards to obtain the corresponding letters of the next term.
RRB JE ME (CBT I) Mock Test- 2 - Question 50

DIRECTIONS: Each of the following questions consists of five figures marked A, B, C, D and E if called the Problem figures followed by five other figures marked 1, 2, 3, and 4 called the ‘Answer figures. Select a figure from amongst the Answer Figures which will continue the same series as established by the five Problem Figures.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 50 The circles get arranged along the two diagonals alternately. The diameter of the uppermost circle rotates 45° ACW each step, of the middle circle, rotates 90° and that of the lowermost circle rotates 45° CW in each step.
RRB JE ME (CBT I) Mock Test- 2 - Question 51

DIRECTIONS: Find the Mirror image of the figure:

Main figure

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 51

RRB JE ME (CBT I) Mock Test- 2 - Question 52

DIRECTIONS: Each of the following questions consists of five figures marked A, B, C, D and E if called the Problem figures followed by five other figures marked 1, 2, 3, and 4 called the ‘Answer figures. Select a figure from amongst the Answer Figures which will continue the same series as established by the five Problem Figures.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 52 The T moves 90o OW moves 90o AGW and every new symbol has its head upwards.
RRB JE ME (CBT I) Mock Test- 2 - Question 53

DIRECTIONS: Arrange the following words according to the English dictionary.

(a) Nature /(b) Native /(c) Narrate /(d) Nascent /(e) Naughty

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 53 The correct arrangement is

(c). Narrate (d). Nascent (b). Native (a). Nature (e). Naughty

RRB JE ME (CBT I) Mock Test- 2 - Question 54

Arrange the following words according to the English dictionary.

(a) Haste /(b) Haphazard /(c) Host /(d) Hang /(e) Handkerchief

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 54 The correct arrangement is

(e) Handkerchief (d) Hang (b) Haphazard (a) Haste (c) Host

RRB JE ME (CBT I) Mock Test- 2 - Question 55

How many pairs of letters are there in the word 'DABBLE' each of which has as many letters between them in the word as in the alphabet?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 55

RRB JE ME (CBT I) Mock Test- 2 - Question 56

Through which of the following states does the river Chambal flow?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 56 The river Chambal flows through U.P., M.P., Rajasthan
RRB JE ME (CBT I) Mock Test- 2 - Question 57

Radcliffe Line was the boundary demarcation line between India and ___________

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 57 Radcliffe Line was the boundary demarcation line between India and Pakistan.
RRB JE ME (CBT I) Mock Test- 2 - Question 58

How many members of the Rajya Sabha retire from the house every 2 years?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 58 The Rajya Sabha is also known as the “Council of States” or the upper house. Rajya Sabha is a permanent body and is not subject to dissolution. However, one-third of the members retire every second year and are replaced by newly elected members.
RRB JE ME (CBT I) Mock Test- 2 - Question 59

Sports Minister Rajyavardhan Rathore and Minister of Culture, Sports and Tourism of South Korea ___________ signed the MoU on cooperation in sports in New Delhi.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 59 Sports Minister Col. Rajyavardhan Rathore and Minister of Culture, Sports and Tourism of South Korea Do Jong-hwan signed the MoU.
RRB JE ME (CBT I) Mock Test- 2 - Question 60

Which of the following sultans used to patronize Minhaj-us-Siraj?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 60 Iltutmish had patronized Minhaj-us-Siraj
RRB JE ME (CBT I) Mock Test- 2 - Question 61

Whom does the President of India send his resignation to if he wants to quit his office?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 61 President of India send his resignation to the Vice-President of India if he wants to quit his office
RRB JE ME (CBT I) Mock Test- 2 - Question 62

Sultana Razia Begum was the daughter of:-

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 62 She was the sultan of Delhi from 1236 - 1240. Razia Sultan was the only women ruler of both the sultanate & Mughal period.
RRB JE ME (CBT I) Mock Test- 2 - Question 63

The book “The God of small things” is written by :

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 63 Arundhati Roy (born 24 November 1961) is an Indian author and political activist who was best known for the 1998 Man Booker Prize for ‘Fiction winning novel The God of Small Things (1997) and for her involvement in environmental and human rights causes. Roy’s novel became the biggest-selling book by a non-expatriate Indian author. Roy began writing her first novel, The God of Small Things, in 1992, completing it in 1996. The book is semi-autobiographical and a major part captures her childhood experiences in Aymanam. The publication of The God of Small Things catapulted Roy to instant international fame. It received the 1997 Booker Prize for Fiction and was listed as one of the New York Times Notable Books of the Year for 1997. It reached the fourth position on the New York Times Bestsellers list for Independent Fiction.
RRB JE ME (CBT I) Mock Test- 2 - Question 64

What is the rank of TCS in the 100 most valuable U.S. brands

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 64 Tata Consultancy Services Ltd (TCS) has been ranked among the top 100 most valuable U.S. brands (58th) for the fourth consecutive year by Brand Finance, a leading brand valuation firm.
RRB JE ME (CBT I) Mock Test- 2 - Question 65

Who was the Chairman of the first Finance Commission?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 65 KC Niyogi was the Chairman of the first Finance Commission from 1952-57
RRB JE ME (CBT I) Mock Test- 2 - Question 66

Which of the following gases has the highest concentration in the atmosphere after nitrogen?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 66 After nitrogen, oxygen has the highest concentration of 20.95 percent in the Earth’s atmosphere
RRB JE ME (CBT I) Mock Test- 2 - Question 67

Which of the following countries has become the second country to legalize the use of cannabis?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 67 Canada has become the second country after Uruguay to legalise the possession and use of recreational cannabis.
RRB JE ME (CBT I) Mock Test- 2 - Question 68

The Qutub Minar was completed by the famous ruler.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 68 The Construction of Qutub Minar was started by Qutub-ud-din Aibak. The construction of Qutub Minar was started by Qutub ud-din Aibek, the first ruler of the Delhi Sultanate. In the memory of Qutbuddin Bakhtiar Kaki, the famous Sufi saint. But after his sudden death his son-in-law Illtutmish completed it. In 1368 A.D., the topmost storey was damaged by lightning and was rebuilt by Firoz Shah Tughlaq.
RRB JE ME (CBT I) Mock Test- 2 - Question 69

Who has signed an MoU for establishing ROSHNI-Centre of Women Collectives led Social Action with Deendayal Antyodaya Yojana – National Rural Livelihood Mission (DAY-NRLM) and Ministry of Rural Development?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 69 Deendayal Antyodaya Yojana – National Rural Livelihood Mission (DAY-NRLM), Ministry of Rural Development and Lady Irwin College, have signed a Memorandum of Understanding (MoU) for establishing ROSHNI – Centre of Women Collectives led Social Action.
RRB JE ME (CBT I) Mock Test- 2 - Question 70

Jama Masjid was was built by -

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 70 Jama Masjid was built by Shah Jahan.
RRB JE ME (CBT I) Mock Test- 2 - Question 71

Statement: No Heat Engine can operate with 100% efficiency (convert heat energy to mechanical work). The given statement is_____________.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 71
• It is not possible to construct an engine that does nothing but convert heat into useful work.

• If some of the heat must go into raising the temperature of a sink, not all of it can be converted into work.

• If work is being done by the heat engine, the object on which work is being done is not isolated from the heat engine. Unless it is at the same temperature as the heat source, heat will flow conventionally from the heat source to the object on which work is being done, and the object's temperature will rise.

RRB JE ME (CBT I) Mock Test- 2 - Question 72

Which among the following is also called "Artificial sugar"?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 72
• Saccharin is used to sweeten low-calorie candies, jams, jellies and cookies. Saccharin is a zero-calorie artificial sweetener. It is 300 - 400 times sweeter than sugar and commonly used as a replacement.

• Saccharin is often blended with other artificial sweeteners to compensate for each sweetener's weaknesses.

RRB JE ME (CBT I) Mock Test- 2 - Question 73

Dynamo is an instrument which works on the process of transforming ____________ Energy to ___________ Energy.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 73
• Dynamo is an Electrical generator that works in the process of transforming Mechanical Energy into Electrical Energy.

• The electric dynamo uses rotating coils of wire and magnetic fields to convert mechanical rotation into a pulsing direct electric current through Faraday's law of induction

RRB JE ME (CBT I) Mock Test- 2 - Question 74

Bauxite is an ore of __________ metal.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 74
• Bauxite: Of all the aluminium ores, bauxite is the chief ore of aluminium.

• Chalcopyrite is the chief ore of copper.

• The most common silver-bearing minerals recovered by flotation are argentiferous galena, native silver, argentite (Ag2S) and tetrahedrite (Cu, Fe, Ag) Sb4S3).

RRB JE ME (CBT I) Mock Test- 2 - Question 75

__________ are atoms of the elements having the same atomic number but different mass numbers.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 75
• Isotopes are atoms having the same atomic number but different mass numbers. Examples Carbon with atomic number 6 occurs in three forms with mass numbers 12, 13 & 14.

• Isobars are atoms having the same mass number but different atomic numbers.

• Isotones are atoms of different elements having the same number of neutrons.

RRB JE ME (CBT I) Mock Test- 2 - Question 76

Study of virus is called ________.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 76
• Virology is the study of viruses and virus-like agents, including (but not limited to) their taxonomy, disease-producing properties, cultivation and genetics.

• Microbiology is the study of microscopic organisms, such as bacteria, viruses, archaea, fungi and protozoa. This discipline includes fundamental research on the biochemistry, physiology, cell biology, ecology, evolution and clinical aspects of microorganisms (of which Virology may be a part of)

• Morphology is the study of forms and features of the different part of plants like roots, stems, leaves flowers etc.

RRB JE ME (CBT I) Mock Test- 2 - Question 77

Which of these is/are plant hormone(s)?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 77
• Auxin is a plant hormone produced in the stem tip that promotes cell elongation, resulting in plant growth.

• Cytokinins are a class of plant growth hormones that promote cell division, in plant roots and shoots. They affect apical dominance, axillary bud growth, and leaf senescence Gibberellin is a type of plant and fungal hormone.

• Gibberellin can overcome dormancy in seeds, extend the length of cells and encourage division, and even has hormonal and signalling roles in the fruiting and senescence processes

RRB JE ME (CBT I) Mock Test- 2 - Question 78

_________ is a radioactive process in which the nucleus of an atom splits into smaller parts.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 78 Nuclear fission is a process in nuclear physics in which the nucleus of an atom splits into two or more smaller nuclei as fission products, and usually some by-product particles.

For Example, The Sun is a main-sequence star, and thus generates its energy by nuclear fusion of hydrogen nuclei into helium. At its core, the Sun fuses 620 million metric tons of hydrogen each second.

RRB JE ME (CBT I) Mock Test- 2 - Question 79

Which of the following is/are not a property of a covalent bond?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 79
• A covalent bond in chemistry is a chemical link between two atoms or ions in which the electron pairs are shared between them. Covalent compounds usually have low melting points. They have low boiling points and insoluble in water.

• These compounds are non-conductors of electrical charge due to the absence of charged ions.

• They are bad conductors of heat also. Their molecules lack free electrons and that obstructs the flow of heat energy.

RRB JE ME (CBT I) Mock Test- 2 - Question 80

Which of the following are part of group 17 of the periodic table, also called "halogens"?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 80 Halogen element, any of the six nonmetallic elements that constitute Group 17 (7a) of the periodic table. The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).
RRB JE ME (CBT I) Mock Test- 2 - Question 81

Vulcanisation is a process associated with which of the following materials?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 81 Vulcanization, chemical process by which the physical properties of natural or synthetic rubber (which are generally very soft) are improved; finished rubber has higher tensile strength and resistance to swelling and abrasion and is elastic over a greater range of temperatures.
RRB JE ME (CBT I) Mock Test- 2 - Question 82

Thyroid gland is associated with which of the following parts in a human body?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 82
• The thyroid gland lies in the front of the neck region in a position just below Adam's apple.

• The thyroid makes two hormones that it secretes into the bloodstream.

• These hormones are necessary for all the cells in your body to work normally.

RRB JE ME (CBT I) Mock Test- 2 - Question 83

Lactic Acid is found in which of the following?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 83

RRB JE ME (CBT I) Mock Test- 2 - Question 84

Which of the following makes up to 60%-75% by mass of the human body?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 84 Up to 60%- 75% of the human adult body is water.

The brain and heart are composed of 73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%.

Water serves several essential functions to keep us all going:

• A vital nutrient to the life of every cell acts first as a building material.

• It regulates our internal body temperature by sweating and respiration.

• The carbohydrates and proteins that our bodies use as food are metabolized and transported by water in the bloodstream;

• It assists in flushing waste mainly through urination

• Acts as a shock absorber for brain, spinal cord, and foetus, forms saliva & lubricates joints

RRB JE ME (CBT I) Mock Test- 2 - Question 85

For a pendulum in Simple Harmonic Motion, Time period (t) is _______________ to Acceleration due to gravity (g).

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 85 A simple pendulum is one that can be a point mass suspended from a string or rod of negligible mass. It is a resonant system with a single resonant frequency. For small amplitudes, the period of such a pendulum can be approximated by

T = 2π √(l/g)

RRB JE ME (CBT I) Mock Test- 2 - Question 86

________________ is a process in which two or more metal items are joined together.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 86 Soldering is a process in which two or more metal items are joined together by melting and then flowing a filler metal into the joint - the filler metal having a relatively low melting point. Soldering is used to form a permanent connection between electronic components.
RRB JE ME (CBT I) Mock Test- 2 - Question 87

Current in a 60 W light bulb when it is connected to a 240 V power supply is___________.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 87 According to Ohm's law, Ohm's law equation (formula): V = I X R and the power law equation (formula)

P = I x V. P = power

So, 60 = I x 240

I = 60/240

Therefore, I = 0.25 A

RRB JE ME (CBT I) Mock Test- 2 - Question 88

______________ is a thermodynamic process in which there is no heat transfer into or out of a system and is generally obtained by surrounding the entire system with a strongly insulating material.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 88
• An adiabatic process is a thermodynamic process in which there is no heat transfer into or out of a system and is generally obtained by surrounding the entire system with a strongly insulating material or by carrying out the process so quickly that there is no time for a significant heat transfer to take place.

• A system that expands under adiabatic conditions does positive work, so the internal energy decreases, and a system that contracts under adiabatic conditions does negative work, so the internal energy increases.

RRB JE ME (CBT I) Mock Test- 2 - Question 89

Medulla is part of ________ in the human body.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 89 Medulla oblongata, also called the medulla, the lowest part of the brain and the lowest portion of the brainstem. The medulla oblongata is connected by the pons to the midbrain and is continuous posteriorly with the spinal cord, with which it merges at the opening (foramen magnum) at the base of the skull.
RRB JE ME (CBT I) Mock Test- 2 - Question 90

____________ is a measuring instrument used to measure the current in a circuit.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 90
• The instrument which measures the flows of current in ampere is known as the ampere meter or ammeter.

• A voltmeter is an electronic instrument used to measure the potential between any two points in an electric or electronic circuit in volts.

• Odometers are used to calculate distance travelled in a vehicle, used along speedometers.

RRB JE ME (CBT I) Mock Test- 2 - Question 91

Which of the following are TRUE regarding the variation of "g "(acceleration due to gravity)?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 91 Acceleration due to gravity is zero at the centre of the earth. The value of g is least at the equator and maximum at the poles. It means the value of acceleration due to gravity increases as we go from the equator to the poles.

The acceleration due to gravity:

• Decreases on account of rotation of the earth.

• Increases with the increase in the latitude of the place.

RRB JE ME (CBT I) Mock Test- 2 - Question 92

Which of the following is related to the statement that "For a given colour of light, the ratio of the sine of the angle of incident and angle of refraction is same"?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 92
• Snell's law, in optics, a relationship between the path taken by a ray of light in crossing the boundary or surface of separation between two contacting substances and the refractive index of each. It states that for a given colour of light, the ratio of the sine of the angle of incident and angle of refraction is the same.

• Kirchhoff's current law states that the current flowing into a node (or a junction) must be equal to the current flowing out of it. This is a consequence of charge conservation. Kirchhoff's voltage law states that the sum of all voltages around any closed loop in a circuit must equal zero.

• Stefan-Boltzmann law, states that the total radiant heat energy emitted from a surface is proportional to the fourth power of its absolute temperature.

RRB JE ME (CBT I) Mock Test- 2 - Question 93

Plasma is a component of which among the following part of the human body?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 93 Plasma is the largest component of your blood, making up about 55% of its overall content. When isolated on its own, blood plasma is a light yellow liquid, similar to the colour of straw. Along with water, plasma carries salts and enzymes.

The primary purpose of plasma is to transport nutrients, hormones, and proteins to the parts of the body that need it. Cells also deposit their waste products into the plasma. The plasma, in turn, helps remove this waste from the body. Blood plasma also ushers the movement of all the elements of blood through the circulatory system.

RRB JE ME (CBT I) Mock Test- 2 - Question 94

Which of the following is defined as the amount of energy released during the formation of one mole of an ionic compound from its constituent ions?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 94
• Lattice Energy is defined as the amount of energy released during the formation of one mole of an ionic compound from its constituent ions.

• Lattice energy is relevant to many practical properties including solubility, hardness, and volatility.

• Hydration energy is the amount of energy released when one mole of ions undergo hydration which is a special case of solvation. It is a special case of dissolution of energy, with the solvent being water.

RRB JE ME (CBT I) Mock Test- 2 - Question 95

______________ is the speed that an object needs to be travelling to break free of a planet or moon's gravity well and leave it without further propulsion.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 95 Escape velocity is the speed that an object needs to be travelling to break free of a planet or moon's gravity well and leave it without further propulsion. For example, a spacecraft leaving the surface of Earth needs to be going 7 miles per second, or nearly 25,000 miles per hour to leave without falling back to the surface or falling into orbit.

Since escape velocity depends on the mass of the planet or moon that a spacecraft is blasting off of, a spacecraft leaving the moon's surface could go slower than one blasting off of the Earth, because the moon has less gravity than the Earth.

RRB JE ME (CBT I) Mock Test- 2 - Question 96

_______________is the study of humans and human behaviour and societies in the past and present.

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 96 Anthropology is the study of people throughout the world, their evolutionary history, how they behave, adapt to different environments, communicate and socialise with one another. The study of anthropology is concerned both with the biological features that make us human (such as physiology, genetic makeup, nutritional history and evolution) and with social aspects (such as language, culture, politics, family and religion).

Seismology is the study of earthquakes and seismic waves that move through and around the earth Psychology is the scientific study of the mind and behaviour.

Psychology is a multifaceted discipline and includes many sub-fields of study such areas as human development, sports, health, clinical, social behaviour and cognitive processes.

RRB JE ME (CBT I) Mock Test- 2 - Question 97

Which of these is/are applications of Ultrasonic Waves?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 97 Sound waves with frequencies higher than the upper audible limit of human hearing are called ultrasound. The limit varies from person to person but is approximately 20,000 Hertz. The physical properties of ultrasound are like the normal audible sound

Applications include:

• Measuring the depth of the sea (SONAR)

• Sterilizing medical equipment

• Cleaning the various industry-specific Machinery parts

RRB JE ME (CBT I) Mock Test- 2 - Question 98

Which of the following have a pH value less than 7?

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 98

RRB JE ME (CBT I) Mock Test- 2 - Question 99

Lakes and forests are best classified as examples of _________

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 99 A natural ecosystem is the result of interactions between organisms and the environment. For example, an ocean, lakes, forests etc.

An artificial ecosystem is not self-sustaining, and the ecosystem would perish without human assistance. For example, a farm, an aquarium etc.

The biosphere is a global ecosystem composed of living organisms (biota) and the abiotic (non-living) factors from which they derive energy and nutrients extending from a few kilometres into the atmosphere to the deep-sea vents of the ocean.

RRB JE ME (CBT I) Mock Test- 2 - Question 100

Gammaxene, D.D.T. and Bleaching powder are important compounds of :

Detailed Solution for RRB JE ME (CBT I) Mock Test- 2 - Question 100 These are the compounds of chlorine.

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

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

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