RRB JE IT (CBT I) Mock Test- 2

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

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## 100 Questions MCQ Test RRB JE Mock Test Series for Computer Science Engineering | RRB JE IT (CBT I) Mock Test- 2

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

### D and E are the mid-points of AB and AC of ∆ABC, and BC is produced to any point P; DE, DP and EP are joined. then, area of:

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 1

(By mid-point theorem)

DE ∥ BC

DE = 1/2 BC

⇒ ar(∆BDE) = 1/4 × ar(∆ABC)

And ∆BDE = ∆PED

[ ∵ both triangles lie on the same base DE and between two parallel lines DE and BP.]

∴ ar(∆PED) = 1/4 × ar(∆ABC)

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

### One side other than the hypotenuse of the right angle isosceles triangle is 6 cm. The length of the perpendicular on the hypotenuse from the opposite vertex is:

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

Let ∠B be right angle in △ABC

and BD be perpendicular on hypotenuse AC then

1/p2 = 1/62 + 1/62

P2 = 62/2

⇒ p = 3√2

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

### The speeds of two trains are in the ratio 3: 4. They are going in opposite directions along parallel tracks. If each takes 3 seconds to cross a telegraph post, find the time taken by the trains to cross each other completely?

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

Speed of both trains = 3 : 4

x 3 ↓ : ↓ x 3 → time

Length = 9m : 12m

Time = D/S = = =

= 3 sec.

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

A mother is 3 times faster than her daughter. If the daughter completes a piece of work in 15 days, how long will it take for both mother and daughter to complete the same work?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 4

Daughter’s one-day work = 1/15

Mother’s one-day work = 1/5

Both can complete their work = 1/5+1/15 = (3+1)/15 = 4/15

Hence, required days= 15/4 days .

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

Study the following table carefully to answer the questions that follow.

The number of soldiers (in thousands) joining five different forces during six different years.

The total number of soldiers joining BSF in the years 2004, 2005 and 2006 was approximately what percent of the total number of soldiers joining the Navy over all the years together?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 5

Total no. of soldiers joining BSF in 2004, 2005, 2006

= 13400

Total no. of soldiers joining in Navy = 10900

Required Percentage= (13400/10900)×100 = 123%

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

Study the following table carefully to answer the questions that follow.

The number of soldiers (in thousands) joining five different forces during six different years.

What was the ratio of the number of soldiers joining the Army in the year 2008 to the number of soldiers joining the coast guard in the year 2006?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 6 Required ratio = 6.5/1.3 = 5/1 = 5:1
RRB JE IT (CBT I) Mock Test- 2 - Question 7

If tan (5x – 10°) = cot (5y + 20°), then the value of (x+y) is:

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 7

tan (5x – 10°) = cot (5y + 20°)

tan (5x – 10°) = tan (90° – {5y + 20°})

5x – 10° = 90° – (5y + 20°)

5x + 5y = 90° + 10° – 20°

5x + 5y = 80°

x + y = 16°

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

If a train, with a speed of 60 km/hr, crossed a pole in 30 seconds, the length of the train (in meters) is:

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 8

Speed = 60 km/hr

S = 60 x 5/18 m/sec = 50/3 m/sec.

T = 30 sec.

Length = S x T = (50/3 x 30)m

L = 500m

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

The supplement of an angle is one-fourth of itself. Determine the angle and its supplement.

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

Let the measure of the angle be x°

Then, the measure of its supplementary angle is (180 - xo).

It is given that,

180o - x = 1/4 X x

⇒ (180o - x) = x

⇒ 720 - 4x = x

⇒ 5x = 720

⇒ x = 144

Thus, the measure of the angle is 144o and the measure of its supplement

= 180o - 144o = 36o

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

3 years ago, the average age of a family of 5 members was 17 years. A baby having been born, the average age of the family is the same today. The present age of the baby is

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 10

Total age of 5 members, three years ago

= 17 × 5 = 85 years

Three years hence,

Total age of 5 members = 85+3x5 = 85+15 = 100 years

Sum of present ages of 6 members = 17 × 6 = 102 years

Present age of baby= 102 – 100 = 2 years

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

A ladder leans against a vertical wall. The top of the ladder is 8 metres above the ground. When the bottom of the ladder is moved 2 metres farther away from the wall, the top of the ladder rests against the foot of the wall. What is the length of the ladder?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 11

Let the length of the ladder be x meter. We have

82 + y2 = x2 and (y + 2) = x

Hence, 64 + (x - 2)2 = x2

⇒ 64 + x2 - 4x + 4 = x2

⇒ 68 = 4x ⇒ x = 17 meter

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

The length of a Rectangular plot is decreased by 33.33%. By how much % the breadth of the plot will be increased so that the area remains constant?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 12

33.33 = 1/3 → 1/2

=

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

A man deposited a certain amount in a fixed deposit at r % p.α., interest being compounded annually. If the interest accrued for the fourth and fifth years are Rs 13310 and Rs 14641. what is the total interest accrued for the first three years?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 13

The interests accrued each year on compound interest form a geometric progression with I, as the first-year interest and common ratio of (1 + r/100).

Therefore, interests for 1st, 2nd, 3rd, 4th and 5th years will be

respectively

Given, (1 + r/100)3 = 13310 ______________(1)

and (1 + r/100)4 = 14641 ______________(2)

(2) divided by (1), we get

1 + r/100) = 14641/13310 = 1.1

Therefore, Sum of the first three years interests

= 13310/(1.1)3 + 13310/(1.1)2.+ 13310/(1.1)1

= 13310/1.331 + 13310/1.21 + 13310/1.1

= 10000 + 11000 + 12100

= Rs. 33100

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

A person earns Rs. 5000 as an interest in 5/2 years on a certain sum invested with a company at the rate of 10% per annum. Find the sum invested by a person in the company?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 14

P =

P = Rs. 20,000

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

The value of is:

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

cot ? = tan (90 - ?) and cos ? = Sin (90 - ?)

Hence

1 - 1/2 = 1/2

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

A is twice as fast as B, and B is one third as fast as C. If they together can complete work in 30 days. In how many days, A, B and C individually can do the same work?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 16

Condition 1- A is twice as fast as

B means their ratio is 2: 1.

Condition 2- B is one third as fast

as C, means their ratio is 1: 3. Then we can say, the ratio of A, B and C is as follows

According to condition 1,

A : B = 2 : 1

According to condition 2;

B : C = 1 : 3

Thus, the ratio of A: B: C = 2: 1 : 3

This ratio denotes the working efficiency of A, B and C which means;

A, B and C can do = (2 + 1 + 3 = 6) work/day

Now we can calculate total work i.e.

Total work = Total days × Per day work

Total work = 30 × 6 = 180

A can do the same work in;

= (Total work / Efficiency of A) = 180 / 2 = 90 days

B can do the same work in;

= (Total work / Efficiency of B)

180 / 1 = 180 days

C can do the same work in;

= (Total work / Efficiency of C) = 180 / 3 = 60 days

Thus, A, B and C can individually complete the same work in 90, 180 and 60 days, respectively.

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

If ab= 25, then the minimum value of a+ b is:

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 17

Minimum value of (a+ b) can be obtained when a= b

Then a + b = 5 + 5 (∴ ab= 25 and a=b)

=10

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

If a + b + c = 1, then Find (1+a) (1+b) (1+c)?

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

Given, a + b + c = 1

Let observe the value of a, b, c

a = 1 / 3, b = 1 / 3, c = 1 / 3

a + b + c

1 / 3 + 1 / 3 + 1 / 3 = 1

3 / 3 = 1

1 = 1

Put the values of a, b, c

(1 + a) (1 + b) (1 + c)

4 / 3 x 4 / 3 x 4 / 3

64 / 27

= 2.37

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

The price of a shirt is ₹260 but the shopkeeper successively discounts 15% & 20%. The net sales price is subject to a sales tax of 5%. What does the buyer pay?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 19

1st discount

S.P. = Rs. 260 - 15% Rs.260

= 260 - 39 = 221

2nd discount

S.P. = Rs.221 - 20% Rs. 221

= 221 - 44.2 = 176.8

Sales tax = 5 / 100 x 1768 / 10

= 8840 / 1000

= Rs. 8.84

= Rs. 176.8 + Rs. 8.84

= Rs. 185.64

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

A cistern from inside is 12.5 m long, 8.5 m broad and 4 m high and is open at the top. Find the cost of cementing the inside of a cistern at Rs. 24 per sq. m

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 20

Area of surface to be cemented = 2 x (l+b) x h + (lxb)

i.e, area of four walls + area of the floor

= 2 x (21) x 4 + (106.25)

= 274.25 m2

∴ cost of cementing = 24 x 274.25 = Rs. 6582

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

A goat is tied to a pole fixed at a corner outside a room with a square base in a grass field. It is tied using a 14 m long rope. The side of the base of the room is 21 m. Find the area of the field over which the goat can graze (in sq. m).

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 21

Let the goat be tied at P.

The area over which the goat could graze = sum of the areas of the regions A and B = Area of a

The sector of radius 14 m and central angle 270°

=

=

=

= 462 sq.m.

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

An article is sold at a loss of 10%. Had it been sold for Rs. 9 more, there would have been a gain of % on it. The cost price of the article is :

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 22

Let the cost price of the article = Rs. x

S.P. at 10% loss = Rs. 0.9x

According to question if it is sold by Rs 9 more there will be gain of 25 / 2 %

0.9x + 9 =

0.9x + 9 =

⇒ 180x + 1800 = 225x

⇒ 225x - 180x = 1800

⇒ 45x = 1800

⇒ x = Rs. 40

Alternate Solution,

Let the CP of the article = 100

x X 22.5 = 9

x = 9 / 22.5

= 18 / 25

Required,

⇒ CP X x

⇒ 100 x 18 / 45

⇒ 40

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

A water tank is 6 m long, 5 m broad and 3.4 m high. Find the capacity of the tank in litres?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 23

Volume = 6 x 5 x 3.4

Volume = 102 cu.cm

1 cu.m = 100 cu.cm

102 cu.cm = 102 x 100

= 10200 cu.cm

1000 cu.cm = 1 litre

1cu.cm = 1 / 1000

10200 cu.cm = (1 / 1000) x 10200

10.2 litres

RRB JE IT (CBT I) Mock Test- 2 - Question 24

The ratio of the area of a square to that of the square drawn on its diagonal is :

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 24 Let the side of the square be ‘α’

Its area = a2

Area of square on the diagonal = (√2a)2 = 2a2

Required ration= a2 / 2a2 = 1: 2

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

If sec θ + tan θ = p, then = ?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 25

=

=

=

=

=

=

= sin θ

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

In the given figure, if ∠ABC = 90° and ∠A = 30°, then ∠ACD=

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 26

∠ACD = ∠B + ∠A

= 90° + 30°

= 120° (exterior angle)

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

A certain sum of money yields ₹ 1261 as compound interest for 3 years at 5% per annum. The sum is

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 27 Let the principal , compound interest rate and time be x, R and T respectively

C.I. =

⇒ 1261 =

⇒ 1261 =

⇒ 1261 =

= 1261x / 8000

⇒ x =

= Rs. 8000

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

If 2x-1 + 2x+1 = 320, then x =?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 28

2x-1 + 2x+1 = 320

2x-1(1 + 22) = 320

2x-1 = 320

2x-1 = 320 / 5 = 64

2x-1 = 26

x - 1 = 6

x = 7

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

The value of (sin2 25° + sin2 65°) is

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 29

sin225o + sin262o = sin225o + sin2(90o - 25o)

= sin225o + cos225o = 1

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

A is twice as good as a workman as B. Together, they finish the work in 14 days. In how many days can it be done by each separately?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 30

As per the question, A does twice the work as done by B.

So A:B = 2:1

Also (A+B)'s one-day work = 1/14

To get days in which B will finish the work,

let's calculate work done by B in 1 day

=(1/14) x (1/3) = 1/42

So B will finish the work in 42 days and A will finish the work in 21 days.

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

DIRECTIONS: A jeweler 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 IT (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 IT (CBT I) Mock Test- 2 - Question 34

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

QDXM: SFYN:: UIOZ:

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 34 WKPA
RRB JE IT (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 IT (CBT I) Mock Test- 2 - Question 35

If only Conclusion II follows.

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

DIRECTIONS: Study the following diagram and answer the questions that follow.

a. The rectangle represents men.

c. Triangle represents skilled persons.

d. Square represents employed persons.

The skilled employed men who are graduates are-

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 36 Only 3
RRB JE IT (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 IT (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 IS, he turns east and walks 25 km to reach S. At 5, 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 IT (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 IT (CBT I) Mock Test- 2 - Question 38

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

Find the missing term:

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

DIRECTIONS: A word is represented by only one set of numbers as given in any 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 IT (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 IT (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 IT (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

From 3

safety = silver

From 4

under = blue

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

RRB JE IT (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 IT (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 IT (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 IT (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 IT (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 IT (CBT I) Mock Test- 2 - Question 47

Series pattern is : nsp/psn/nsp/psn/nsp/psn

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

DIRECTIONS: Solve the following series?

B2F, G4K, L12P, Q38U, ?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 48

The Series is as follows;

V118Z will come in place of ‘?’

RRB JE IT (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 IT (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 IT (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 IT (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, the middle circle rotates 90° and that of the lowermost circle rotates 45° CW in each step.
RRB JE IT (CBT I) Mock Test- 2 - Question 51

DIRECTIONS: Find the Mirror image of the figure:

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

RRB JE IT (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 IT (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 IT (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 IT (CBT I) Mock Test- 2 - Question 53 The correct arrangement is

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

RRB JE IT (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 IT (CBT I) Mock Test- 2 - Question 54 The correct arrangement is

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

RRB JE IT (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 IT (CBT I) Mock Test- 2 - Question 55
 Letters in the word Letter in the alphabet D A B D C B B B L E B C D E A B A B A B B L E A B C D E

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

Who was recently elected as the Deputy Chairman of the Rajya Sabha in the Parliament?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 56 Harivansh Narayan Singh, Rajya Sabha MP from Bihar since 2014 was recently elected as the new Deputy Chairman of Rajya Sabha in the Parliament.

Earlier in his career, he was a journalist with 'Prabhat Khabar' and then was chosen as the media advisor to former Prime Minister Chandra Shekhar.

RRB JE IT (CBT I) Mock Test- 2 - Question 57

Recently, the Ministry of External Affairs organised the 11th World Hindi Conference at which of the following Indian ocean states?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 57 11th edition of the World Hindi Conference was organised in Swami Vivekanand International Convention Centre, Pailles Mauritius.

The theme of the Conference: "Hindi Vishwa Aur Bhartiya Sanskriti". It was organised by the Ministry of External Affairs, Government of India in association with the Government of Mauritius

RRB JE IT (CBT I) Mock Test- 2 - Question 58

Right to Information, an important legislative act to promote transparency & strengthen the democracy of India came into being in which year?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 58 On October 12, 2005, Right To Information came into being after the passage of an Act in the Indian parliament to bring in transparency in governmental procedures and end corruption

Using rtionline.gov.in citizens of India can seek information to turn India into a participatory democracy.

According to the government guidelines, 'Any person who desires to obtain information shall submit a written or electronic request in English or Hindi or in the official language of the area to the Central Public Information Officer or his/her counterpart at the state level.'

RRB JE IT (CBT I) Mock Test- 2 - Question 59

Which Indian state excelled to be the top performer in the recently released 'Ease of Living Index 2018' by the Ministry of Housing & Urban Affairs?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 59 Andhra Pradesh topped the charts among the Indian States in terms of "Ease of Living Index 2018" rankings launched by the Ministry of Housing and Urban Affairs, followed by Odisha and Madhya Pradesh.

The Index seeks to assist states in undertaking a 360-degree assessment of their strengths, weaknesses, opportunities, and threat & innovation to perform in the governance, identity and culture, education, health, safety and security, economy, affordable housing, land use planning etc. for its residents.

RRB JE IT (CBT I) Mock Test- 2 - Question 60

Which of the following government entities started 'Seva Bhoj Yojana - a scheme to reimburse central share of CGST and IGST on food, prasad, langar etc. offered by religious and charitable institutions?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 60 The Ministry of culture recently launched the Seva Bhoj Yojna, a scheme to reimburse the central share of CGST and IGST on food, prasad, langar etc. offered by religious and charitable institutions.

Institutions like Temples, Gurudwara, Mosque, Church, Dharmik Ashram, Dargah etc. who are established and serving free food for more than 5 years to more than 5000 people every month without any discrimination are the eligible entities.

RRB JE IT (CBT I) Mock Test- 2 - Question 61

Google recently, unveiled ____________ which will quickly render any PDF with Indian language content into editable text using Artificial Intelligence.

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 61 During the 4th edition of the 'Google for India' event, the Project Navlekha was unveiled which in Sanskrit means "a new way to write". It will quickly render any PDF with Indian language content into editable text using Artificial Intelligence.

Under the project, The registered publishers will be provided with a free web hosting service along with a branded domain for 3 years and having AdSense support to help monetize their content.

RRB JE IT (CBT I) Mock Test- 2 - Question 62

Which of the following Indian states launched a scheme, 'Kanyashree', to incentivize adolescent girl child education to combat the issue of child marriages?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 62 Kanyashree was launched in 2013 by the West Bengal government to prevent child marriage in economically backward sections with an annual household income of ₹1.2 lakh.

Eligible girls got ₹1,000 a year scholarship from ages 13 to 18 years and a one-time grant of ₹25,000 on remaining unmarried till 18 years. More than 5 million girl children benefited from the scheme.

Recently the annual income limit was relaxed to any girl child within the age limit.

RRB JE IT (CBT I) Mock Test- 2 - Question 63

Which of the following government institutions launched "Pitch to MOVE", a business opportunity platform for budding entrepreneurs?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 63 NITI Aayog recently launched "Pitch to MOVE", a business opportunity platform for budding entrepreneurs to promote their business ideas.

It aims to identify and incentivise the start-ups, which will help the Government realize its vision of Shared, Connected, Intermodal and Environment-Friendly Mobility for India.

The objective is to harness the latest disruption for generating employment and growth in our country

RRB JE IT (CBT I) Mock Test- 2 - Question 64

Ghoomar is a popular traditional folk dance from which region in India?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 64 Ghoomar is a traditional dance from Rajasthan's Bhil tribe performed only by the women during celebrations pertaining to Goddess Saraswathi, Diwali, Holi etc.

Attire for women: Ghagharas along with colourful chunaris and heavy embroidery. Works garment.

RRB JE IT (CBT I) Mock Test- 2 - Question 65

Which of the following International Organisations are headquartered in Washington D.C., USA?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 65
 International Atomic Energy Agency Vienna, Austria World Bank Washington DC International Monetary Fund Washington DC

RRB JE IT (CBT I) Mock Test- 2 - Question 66

Match the following trophies with their respective sports

 Aga Khan Cup Hockey Durand Trophy Football Sharjah Cup Cricket Yonex Cup Badminton

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 66
 A. Aga Khan Cup a. Cricket B. Durand Trophy b. Badminton C. Sharjah Cup c. Football D. Yonex Cup d. Hockey

RRB JE IT (CBT I) Mock Test- 2 - Question 67

Dhauladhar National Park is situated in which of the following Indian state?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 67 Dhauladhar National Park is situated at a distance of 13kms from the city of Palampur in the Indian state of Himachal Pradesh. It is filled with exotic flora and fauna and is home to different types of deer, red fox, sambhar, Asiatic lion, angora rabbits, black bears and leopards. It covers an area of 30 acres.
RRB JE IT (CBT I) Mock Test- 2 - Question 68

Daman & Diu is the Union territory of India comprising 2 different areas separated by which of the following?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 68 The Arabian Sea separates the two areas of the union territory, Daman & Diu, bordered by the state of Gujarat.

With an area of only 112 square kms, it is the second smallest UT of India after Lakshadweep.

RRB JE IT (CBT I) Mock Test- 2 - Question 69

Recently, BOMBAY NATURAL HISTORY SOCIETY opened its regional centre at which of the following important Wetland in India?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 69 Recently, BOMBAY NATURAL HISTORY SOCIETY opened its regional centre in the premises of The Wetland Research and Training Centre (WRTC) of the Chilika Development Authority (CDA) at Chandrapur in Chilika.

Here, BNHS would be engaged in identifying the air route of the migratory birds flocking the Chilika lake during winter & sample collection, training related to bird census among other important conservatory purposes.

RRB JE IT (CBT I) Mock Test- 2 - Question 70

With which of the following Financial Institution would you associate 'Prompt Corrective Action'?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 70

The Reserve Bank of India has specified certain regulatory guidelines, as a part of the Prompt Corrective Action (PCA) framework, in terms of 3 parameters,

- capital to risk-weighted assets ratio (CRAR),

- net non-performing assets (NPA) and

- Return on Assets (RoA), applicable only to commercial banks and not extended to co-operative banks, non-banking financial companies (NBFCs) & other financial institutes

RRB JE IT (CBT I) Mock Test- 2 - Question 71

Who among the following is credited with the invention of the electric generator?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 71 Michael Faraday after creating the 1st transformer in 1831, later designed and made the simple piece of the transformer's apparatus based on his ring, developed the first-ever electric generator.

He is also credited with theorising the principles underlying electromagnetic induction, diamagnetism and electrolysis in Physics.

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

Which element among the following is most reactive?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 72 Potassium (Symbol: K) is one of the alkali metals which is highly reactive owing to the need of only 1 electron for completion of the s-shell.

Atomic No.- 19, It has two major isotopes with mass number 39 and 41.

It is an important component in the human diet that helps in muscle movement.

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

An AC dynamo is used to convert ____________ energy into ____________energy.

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 73 A.C. Dynamo is an electrical machine that is used to convert mechanical energy into electrical energy.

The dynamo works on the principle of electromagnetic induction, where an e.m.f is induced in it on the rotation of a coil in a uniform magnetic field.

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

Which of the following is the part of the brain in the human body?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 74 Medulla oblongata (medulla) is 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 IT (CBT I) Mock Test- 2 - Question 75

_____________ _ are atoms of different elements having the same number of neutrons.

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 75 Isotones are atoms of different elements having the same number of neutrons.

For example- Both Boron (12) and carbon (13) nuclei contain 7 neutrons in their nucleus.

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

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

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

Which among the following is the one demonstrating radioactivity in its natural state?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 76 Radon is a radioactive by-product of a radium element. The atomic number is 86 while the mass number is 222.

It is a colourless, odourless gas and part of natural radioactive decay series with a half-life of 3.8 days.

Radon dilutes rapidly when exposed to the outside air.

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

Heavy water is used as which of the following function in a nuclear reactor?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 77 Heavy water or Deuterium Oxide (D2O) is used as a moderator in a Nuclear reactor.

In order to continue a fission reaction and sustain the chain reaction, the moderator is used. It is the material in the reactor core that slows down the neutrons released from fission.

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

Which hormone in plants promotes cell elongation, resulting in plant growth?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 78 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 IT (CBT I) Mock Test- 2 - Question 79

λ = h/mv is famously known as __________ equation.

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 79 The de Broglie equation is an equation used to describe the wave properties of matter, specifically, the wave nature of the electron.

λ = h/mv, where λ is the wavelength, h is Planck's constant (6.6x 10-34 Js), m is the mass of a particle (mass of electron= 9.1 x 10-31 kg), moving at a velocity v.

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

_____________ is the amount of energy released when one mole of ions undergo hydration which is a special case of solvation.

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 80 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.

Lattice Energy is defined as the amount of energy released during the formation of one mole of an ionic compound from its constituent ions.

RRB JE IT (CBT I) Mock Test- 2 - Question 81

Which of the following laws gives the relation, E α T4? (where E is radiant heat energy emitted from a unit area & T is the absolute temperature in Kelvin)

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 81 Stefan-Boltzmann law, states that the total radiant heat energy emitted from a surface is proportional to the fourth power of its absolute temperature.

E α T4 where E is radiant heat energy emitted from a unit area & T is the absolute temperature in Kelvin.

or E= σT4, where σ is Stefan-Boltzmann constant having a value of 5.670367 X 10-8 watt per meter2 per K4

RRB JE IT (CBT I) Mock Test- 2 - Question 82

Max Planck was given the Nobel Prize in 1918 for which of the following?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 82 In recognition of his discovery of energy quanta & the research studies, resulting in the advancement of Physics, Max Planck was awarded the Nobel Prize in 1918.

He was credited with initiating the study of quantum mechanics.

In 1900 his theoretical research into the radiation and absorption of heat/light by a black body led to his theorising of energy quanta.

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

Arrange the following mediums in descending order of speed of light in them.

Water, Flint Glass, Olive oil, Rock Salt

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

Speed of light in descending order would be Water > Olive Oil > Rock Salt > Flint Glass.

The speed of light in a medium = Speed of light in vacuum/ Refractive index

Refractive indices of different mediums at room temperature are as such,

Water- 1.33, Olive Oil- 1.44 -1.47, Rock Salt- 1.54, Flint Glass- 1.65

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

Mushrooms are considered as which of the following categories?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 84 Mushrooms are fungi, and usually placed in a Kingdom of their own apart in the five Kingdom classification.

Mushrooms have no chlorophyll and obtain their nutrition from metabolizing non-living organic matter, hence are called saprophytes.

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

Which among the following is the lightest Halogen in the periodic table?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 85 With an atomic mass of 18.99 u, Fluorine (F) is the lightest of all halogens.

Its atomic number is 9.

For easier transportation purposes, it is converted to Hydrogen Fluoride, since fluoride is extremely reactive.

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

The largest cell in the human body is ____________.

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 86 The largest cell in the human body is the female egg cell.

They measure about 0.1 mm in diameter and are spherical in shape, comparable to the size of a grain of sand.

The biological name of female egg cells is 'ova'.

RRB JE IT (CBT I) Mock Test- 2 - Question 87

A body initially at rest moves with a constant acceleration of 30 m/s2. At about 20 seconds from the initial point, it would have travelled how much distance?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 87 Using the distance-time equation for a body moving with constant acceleration, S = ut +1/2at2 where, S = distance travelled, u= initial velocity, a=acceleration, t= time taken for the body to travel distance s.

Since, the body was initially at rest, u= 0 m/s,

Hence, Putting the values in the equation, S = ut +1/2*at2

S = 0 + ½ (30 x 202)

Or, S = 6000 metre or 6 km

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

The Current flowing through a 100 W light bulb when it is connected to a 240 V power supply is _________.

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 88 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, 100= I x 240

Therefore, I= 0.42 A.

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

Who among the following is often referred to as 'Father of Taxonomy'?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 89 Carl Linnaeus is often referred to as 'Father of Taxonomy'.

He wrote the book 'Systema Naturae' in the 18th century.

His system for naming, ranking, and classifying organisms have influenced generations of biologists and still widely in use.

RRB JE IT (CBT I) Mock Test- 2 - Question 90

Which of the following when connected in parallel to a Galvanometer converts it to an Ammeter?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 90 Shunt Resistance has a very low value of resistance.

In an electrical circuit, shunt resistance is connected in parallel with a Galvanometer to make it act like an Ammeter.

It is mainly made of a material having a low-temperature coefficient of resistance.

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

Which of the following is the S.I unit of 'Momentum'?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 91 Kg m/s is the S.I. unit of momentum in Physics, where the mass of a body is in Kilograms and Velocity is in m/s.

When a body of a certain mass is moving with a certain velocity, then the body is said to possess momentum.

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

Which branch of Biology deals with the study of forms and features of the different part of animals, plants, and microorganisms and of the relationships of their constituent parts?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 92 Morphology is the branch of biology which deals with studying the form and structure of animals, plants and microorganisms as well as their specific structural features.

Two sub-divisions of Morphology are-

- Functional Morphology is studying co-operation between structures and functions, focusing on morphological features.

- Experimental morphology focuses mostly on the organism's behaviour under lab conditions.

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

If you touch Mimosa Pudica, a 'Touch me Not' plant, they tend to close, this type of movement is known as _____________.

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 93 Seismonastic movements occurs in response to touch whether it's a mechanical, electrical, thermal or chemical stimulus.

Mimosa pudica, which is a sensitive plant, shows this type of movement.

The movement of K+ ions causes the change in the osmotic potential of cells of the pulvinus, present in the base of leaf stalk in the plant.

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

Which of the following is used as a rodenticide (rat poison)?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 94 Zinc Phosphide is famously used as rat poison or rodenticide.

When a rat ingests it, it gets converted to phosphine gas in its body.

This phosphine gas is subsequently absorbed into the bloodstream through the stomach and the intestines and gets captured by the liver and the lungs resulting in toxic effects of metabolism processes.

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

In the study of Biology, __________ is regarded as the basic unit of life.

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 95 A cell is regarded as the basic building block of all living organisms.

Any living organism is either made up of a single cell or many cells, which is the smallest unit.

A Cell consists of a quantity of protoplasm surrounded by a cell membrane, capable of synthesizing proteins and replicating itself.

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

Chalcopyrite is a major ore for extraction of which of the following metal?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 96 Chalcopyrite or CuFeS2 is a chief ore for the extraction of copper metal.

Atomic mass: 63.546 a.m.u; Atomic number: 29

Copper is a soft, malleable, and ductile metal while having a very high thermal as well as electrical conductivity.

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

The softness of a natural rubber changed to a high strength material through which of the following processes?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 97 Vulcanization is the chemical process by which the physical properties of natural or synthetic rubber (which are generally very soft) are improved.

In the final product of the process, finished rubber has higher tensile strength and resistance to swelling and abrasion, and is elastic over a greater range of temperature

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

Based on 'Magnetic properties', Mercury can be labelled as a _____________ material.

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 98 Mercury is a typical example of a diamagnetic material.

Diamagnetism: On application of an external magnetic field to a diamagnetic substance such as mercury or silver, a weak magnetic dipole moment is induced in the direction opposite the applied field.

Their atoms have no permanent magnetic dipole moment in them

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

What are the two types of Coefficient of friction?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 99 The static coefficient of friction is the one that applies to objects that are motionless while the kinetic coefficient of friction is the one that applies to objects that are in motion.

Regardless of the objects being motionless or in motion, the coefficient of friction is not always the same.

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

Chloroform, when exposed to oxygen, can form which of the following toxic substances?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 2 - Question 100

When chloroform is exposed to oxygen and amounts of UV light, the formation of Phosgene takes place.

Phosgene is highly toxic and can possibly cause death.

Chloroform- CHCl3

Phosgene- COCl2

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