Official Paper

RRB ALP Mechanic Diesel 23 Jan 2019 Official Paper (Shift 1) (Previous Year Paper)

175 questions · 150 minutes · with answers · free

Attempt as Timed Mock Test

Part A (100 questions)

What is the diameter (in cm) of a sphere of surface area 1386 cm²?

((a))
14
((b))
21
((c))
10.5
((d))
24.5

Show Answer

Answer: ((a))

The bar graph shows the population density of 6 countries in 2000 and 2010.

If the population of country B is 10 million in 2000 and the population of country D is 6 million in 2010, how much more is the area of country B than the area of country D, where population density is measured as the number of people per 100 square kilometers.

((a))
500%
((b))
20%
((c))
400%
((d))
25%

Show Answer

Answer: ((a))

500%

The bar graph shows all the ingredients (in grams) required to make two types of salads, X and Y. If Ingredient B of Salad X is reduced by 100 grams and Ingredient E of salad Y is increased by 25% then salad Y would be lighter than salad X by _______.

((a))
37.50%
((b))
25%
((c))
20%
((d))
22.50%

Show Answer

Answer: ((a))

37.50%

In a steady-flowing river, a boat goes a certain distance upstream at a speed of 12 km/h and comes back the same distance at 24 km/h. Find the average speed for the total journey.

((a))
15 km/h
((b))
16 km/h
((c))
18 km/h
((d))
20 km/h

Show Answer

Answer: ((a))

15 km/h

Find mass of an iron cube of side 2 cm. (Density of iron is 7.8 gm/cm³)

((a))
3.9 gm
((b))
0.975 gm
((c))
15.6 gm
((d))
62.4 gm

Show Answer

Answer: ((a))

3.9 gm

Two cars, X and Y, travel from A to B at average speeds of 50 km/hr and 75 km/hr respectively. If X takes 2 hours more than Y for the journey, then the distance between A and B in km is ______.

((a))
600
((b))
400
((c))
800
((d))
300

Show Answer

Answer: ((a))

600

If a shopkeeper sells an item at Rs. 2,700, he makes 8% profit. If he sells the item at Rs. 3,000 what will be the percentage of profit?

((a))
12
((b))
20
((c))
10
((d))
25

Show Answer

Answer: ((a))

Find the highest common factor of 506 and 782.

((a))
29
((b))
34
((c))
46
((d))
22

Show Answer

Answer: ((a))

A alone can do a task in 35 days and B alone in 14 days. If they work on it together for 5 days, then what fraction of the task is left?

((a))
Quarter
((b))
One-thirds
((c))
Half
((d))
Three fourths

Show Answer

Answer: ((a))

Quarter

(0.1² - 0.025²) ÷ (0.1 - 0.025) = ______.

((a))
0.325
((b))
0.125
((c))
0.625
((d))
0.25

Show Answer

Answer: ((a))

0.325

Find the coordinates of the midpoint of the segment joining the points (-4, 7) and (2, 3).

((a))
(-1, 5)
((b))
(-2, 3)
((c))
(1, -5)
((d))
(2, 4)

Show Answer

Answer: ((a))

(-1, 5)

20 - 2[25% of (15 × 8 ÷ 6 + 12)] = ______

((a))
4
((b))
6
((c))
10
((d))
8

Show Answer

Answer: ((a))

If a - b = 5 and ab = 14, then find a² + b².

((a))
53
((b))
27
((c))
5
((d))
19

Show Answer

Answer: ((a))

Find the value of 5 sin θ - 2 cosec θ, if θ = 30°.

((a))
3/2
((b))
- 3/2
((c))
2/3
((d))
- 2/3

Show Answer

Answer: ((a))

3/2

In a certain gear train, the driver has 18 teeth while the follower has 8 teeth. For every 16 turns of the driver, the follower turns ______ times.

((a))
18
((b))
8
((c))
36
((d))
9

Show Answer

Answer: ((a))

If 5x/2 - 1/4(6x - 5/3) = 7/6, then the value of x is ______.

((a))
5/4
((b))
3/4
((c))
3/7
((d))
5/7

Show Answer

Answer: ((a))

5/4

If the amount received at the end of 1^st and 2^nd year at compound interest on a certain principal is Rs. 1,350 and Rs. 1,458 respectively, what is the rate of interest?

((a))
10%
((b))
15%
((c))
12%
((d))
8%

Show Answer

Answer: ((a))

10%

A trader buys 60 bags of grain at Rs. 400 each. If he sells 18 bags at 8% profit, at what price should he sell the remaining bags to make 16.4% overall profit on selling the 60 bags?

((a))
Rs. 480
((b))
Rs. 500
((c))
Rs. 540
((d))
Rs. 520

Show Answer

Answer: ((a))

Rs. 480

If A, B and C can do a task working alone in 12, 18 and 36 days respectively. They all work together for 2 days, then B quits. How many days A and C working together will take to complete the remainder of the task?

((a))
6
((b))
3
((c))
4
((d))
9

Show Answer

Answer: ((a))

What is the area (in cm²) of an equilateral triangle of side 8 cm?

((a))
32√3
((b))
8√3
((c))
64√3
((d))
16√3

Show Answer

Answer: ((a))

32√3

A and B start to walk from point P towards point Q. The distance between P and Q is 9 km. B starts 4 minutes after A. A, on reaching Q, immediately returns and after walking a kilometre meets B. If A’s speed is a kilometre in 10 minutes, what is B’s speed in kilometres per minute?

((a))
1/15
((b))
1/8
((c))
1/12
((d))
1/6

Show Answer

Answer: ((a))

1/15

Pipe A can fill a tank in 6 hours. Pipe B can empty it in 15 hours. If both the pipes are opened together, then the tank will be filled in how many hours?

((a))
9
((b))
8
((c))
12
((d))
10

Show Answer

Answer: ((a))

When a number is increased by 36, it becomes 109% of itself. What is the number?

((a))
300
((b))
450
((c))
360
((d))
400

Show Answer

Answer: ((a))

300

A bullet travels 90 m in 0.2 seconds. Find its speed in km/hr.

((a))
162
((b))
1,620
((c))
1,250
((d))
125

Show Answer

Answer: ((a))

162

An executive earns a salary of Rs. 12,600 every month, and he spends 5/7 of it. If his salary increases by 1/3^rd and his spending increases by 1/5^th of the present expenditure, what fraction of his salary will he save?

((a))
7/16
((b))
8/15
((c))
7/15
((d))
5/14

Show Answer

Answer: ((a))

7/16

If 3A = 6B = 7C; find A : B : C.

((a))
12 : 7 : 3
((b))
7 : 12 : 6
((c))
14 : 7 : 6
((d))
7 : 3 : 12

Show Answer

Answer: ((a))

12 : 7 : 3

Find x if the mean of the numbers 10, 4, 1, 15, 15, x, 12 and 14 is 10.

((a))
7
((b))
8
((c))
9
((d))
10

Show Answer

Answer: ((a))

If √X + 0.24 = √0.1296 then find X.

((a))
0.0144
((b))
0.12
((c))
1.44
((d))
0.0012

Show Answer

Answer: ((a))

0.0144

The weights of 3 boxes are 4, 7 and 10 kilograms. Which of the following CANNOT be the total weight, in kilograms, of any combination of these boxes?

((a))
14
((b))
21
((c))
17
((d))
18

Show Answer

Answer: ((a))

The author of ‘The Monk Who Sold His Ferrari’ is ______.

((a))
Arvind Adiga
((b))
Robin Sharma
((c))
Manohar Malgonkar
((d))
Arundhati Roy

Show Answer

Answer: ((a))

Arvind Adiga

Find the work done (in kJ) if a force of 750 N pushes a cart of mass 30 kg by 16 m.

((a))
24
((b))
12
((c))
36
((d))
48

Show Answer

Answer: ((a))

Which hazardous substance can cause lung cancer?

((a))
Benzene vapours
((b))
Asbestos particles
((c))
Herbicides
((d))
Aluminum

Show Answer

Answer: ((a))

Benzene vapours

______ is the physiological adjustment by an organism to environmental change.

((a))
Bioremediation
((b))
Bioaccumulation
((c))
Cogeneration
((d))
Acclimation

Show Answer

Answer: ((a))

Bioremediation

Which of the following gases is a highly poisonous, odourless, tasteless and colourless gas?

((a))
Carbon dioxide
((b))
Carbon monoxide
((c))
Methane
((d))
Nitrogen dioxide

Show Answer

Answer: ((a))

Carbon dioxide

Green and yellow vegetables in our diet mostly provide us which element as food?

((a))
Copper
((b))
Sodium
((c))
Zinc
((d))
Potassium

Show Answer

Answer: ((a))

Copper

Binary 110110101 is equal to decimal ________.

((a))
333
((b))
437
((c))
349
((d))
477

Show Answer

Answer: ((a))

333

A/An ______ is software used to maintain the security of a private network.

((a))
malware
((b))
encryption
((c))
firewall
((d))
clickbait

Show Answer

Answer: ((a))

malware

Who was the chairman of the Constitution Drafting Committee?

((a))
Jawaharlal Nehru
((b))
Dr. B R Ambedkar
((c))
Dr. Rajendra Prasad
((d))
Sardar Patel

Show Answer

Answer: ((a))

Jawaharlal Nehru

The Umaid Bhawan Palace is in which city?

((a))
Jaipur
((b))
Jodhpur
((c))
Bikaner
((d))
Udaipur

Show Answer

Answer: ((a))

Jaipur

Classical musician Shivkumar Sharma is associated with which musical instrument?

((a))
Shehnai
((b))
Tabla
((c))
Violin
((d))
Santoor

Show Answer

Answer: ((a))

Shehnai

Which of the following folk dances is from Assam?

((a))
Giddha
((b))
Lezim
((c))
Nati
((d))
Bagurumba

Show Answer

Answer: ((a))

Giddha

-100° Celsius = ______ Fahrenheit

((a))
-373°
((b))
-148°
((c))
173°
((d))
-212°

Show Answer

Answer: ((a))

-373°

If 36 J of work is done in moving a charge Q across 8 V, find Q (in coulombs).

((a))
288
((b))
9
((c))
4.5
((d))
16

Show Answer

Answer: ((a))

288

What is the relative density of a solid of mass 50 gm which when fully immersed in water weighs 10 gm?

((a))
5
((b))
1.25
((c))
2.5
((d))
0.8

Show Answer

Answer: ((a))

If the speed of a car increases from 54 km/hr to 90 km/hr, its kinetic energy increases in the ratio of ________.

((a))
3/5
((b))
9/4
((c))
9/16
((d))
9/25

Show Answer

Answer: ((a))

3/5

Find the length (in cm) of the edge of a cube of a piece of wood which weighs 80 N. (Use g = 10 m/s², density of wood = 1 g/cm³)

((a))
60
((b))
20
((c))
80
((d))
40

Show Answer

Answer: ((a))

Two resistors of R Ω and 60 Ω are connected in parallel to get an effective resistance of 24 Ω. Find R.

((a))
56
((b))
64
((c))
48
((d))
40

Show Answer

Answer: ((a))

Farad per meter is the unit of ______.

((a))
watt per steradian
((b))
permittivity
((c))
permeability
((d))
electric conductance

Show Answer

Answer: ((a))

watt per steradian

A ______ map converts color intensity or grayscale information to heights to give the appearance that features are raised above the surface, like embossed letters.

((a))
shade
((b))
bump
((c))
tone
((d))
tint

Show Answer

Answer: ((a))

shade

A truck of mass 5000 kg accelerates from 25 m/s to 35 m/s. Find the change in its kinetic energy (in MJ).

((a))
1
((b))
2.5
((c))
1.5
((d))
2

Show Answer

Answer: ((a))

Which of the following recipients of the Dadasaheb Phalke Award received it posthumously?

((a))
Vinod Khanna
((b))
Satyajit Ray
((c))
Naushad
((d))
Durga Khote

Show Answer

Answer: ((a))

Vinod Khanna

To ______ is to prepare a storage medium, usually a disk, for reading and writing.

((a))
format
((b))
defrag
((c))
map
((d))
boot

Show Answer

Answer: ((a))

format

Which of the following is the correct relation between resistance ‘R’, conductivity ‘σ’, length ‘L’ and area of cross section ‘A’ of a metal wire?

((a))
RL = Aσ
((b))
RσA = L
((c))
RA = Lσ
((d))
σ = RL/A

Show Answer

Answer: ((a))

RL = Aσ

Which team won the Indian Premier League (IPL) in 2018?

((a))
Sunrisers Hyderabad
((b))
Chennai Super Kings
((c))
Royal Challengers Bangalore
((d))
Kolkata Knight Riders

Show Answer

Answer: ((a))

Sunrisers Hyderabad

Antihistamines are found in some first-aid boxes. When should these drugs be taken?

((a))
To aid in clotting of blood
((b))
To ease the symptoms of hay fever and other allergies
((c))
To ease the indigestion and heartburn
((d))
To bring relief from asthma

Show Answer

Answer: ((a))

To aid in clotting of blood

Acceleration due to gravity on moon is 1/6^th that on earth. How much would an astronaut weigh on the moon if he weighs 90 kgf on earth? (acceleration due to gravity on earth = 10 m/s²)

((a))
15 N
((b))
150 N
((c))
90 N
((d))
9 N

Show Answer

Answer: ((a))

15 N

Which of the following is NOT a base unit?

((a))
mole
((b))
ampere
((c))
radian
((d))
candela

Show Answer

Answer: ((a))

mole

Who invented the blue jeans?

((a))
Levi Strauss
((b))
Todd Oldham
((c))
Calvin Klein
((d))
Gianni Versace

Show Answer

Answer: ((a))

Levi Strauss

Find the potential difference (in V) across a resistance of 2.5 kΩ through which a 2 mA current flows.

((a))
5
((b))
0.2
((c))
1.25
((d))
0.8

Show Answer

Answer: ((a))

The Living Planet Report, released every two years, is the flagship publication of which organisation?

((a))
The Nature Conservancy
((b))
World Wide Fund for Nature
((c))
Conservation International
((d))
Wildlife Conservation Society

Show Answer

Answer: ((a))

The Nature Conservancy

The sum of two binary numbers 1101111 and 1100101 is ______.

((a))
100011100
((b))
100000110
((c))
11110000
((d))
11010100

Show Answer

Answer: ((a))

100011100

The National Skills Development Corporation (NSDC) is a public-private partnership formed under India’s ______.

((a))
Ministry of Finance
((b))
Ministry of Electronics & Information Technology
((c))
Ministry of Corporate Affairs
((d))
Ministry of Science & Technology

Show Answer

Answer: ((a))

Ministry of Finance

The resistance of a metal rod depends on all of the following, except ______.

((a))
resistivity
((b))
density
((c))
length
((d))
temperature

Show Answer

Answer: ((a))

resistivity

Find the missing number in the given series.

-1.3, -0.8, -0.3, ?, 0.7, 1.2

((a))
0.1
((b))
0.3
((c))
0.4
((d))
0.2

Show Answer

Answer: ((a))

0.1

One statement is given, followed by two assumptions, I & II. You have to consider the statement to be true, even if it seems to be at variance from commonly known facts. You are to decide which of the given assumptions can definitely be drawn from the given statement.

Statement: “You are appointed as a trainee accountant on temporary basis. Your employment status will automatically be converted to permanent on submission of pass result of M Com final exam." — Extract from an appointment letter.

Assumptions:

I. M Com final exam is a reasonable proof of an accountant's capability.

II. All trainees are appointed on temporary basis.

((a))
Both I and II are implicit
((b))
Only assumption I is implicit
((c))
Only assumption II is implicit
((d))
Neither I nor II is implicit

Show Answer

Answer: ((a))

Both I and II are implicit

Choose the figure which is different from the rest.

((a))
((b))
((c))
((d))

Show Answer

Answer: ((a))

In a certain code language, ‘+’ represents ‘×’, ‘÷’ represents ‘+’, ‘-’ represents ‘÷’ and ‘×’ represents ‘-’. Find out the answer to the following question.

12 ÷ 6 – 2 + 10 × 5 = ?

((a))
50
((b))
37
((c))
23
((d))
16

Show Answer

Answer: ((a))

In the following figure, the triangle represents actors, the square represents professors, the circle represents Indians and the rectangle represents fathers. Which set of letters represents Indians who are either professors or fathers?

((a))
IGH
((b))
CEF
((c))
E
((d))
G

Show Answer

Answer: ((a))

IGH

Choose the letters which are different from the rest.

((a))
HJL
((b))
PRT
((c))
VTR
((d))
UWY

Show Answer

Answer: ((a))

HJL

Select the option that is related to the third word on the same basis as the second word is related to the first word.

Letter : Envelope ∷ Dagger : ?

((a))
Sheath
((b))
Weapon
((c))
Sword
((d))
Sharp

Show Answer

Answer: ((a))

Sheath

If A $ B means A is the husband of B, A # B means A is the brother of B and A * B means A is the mother of B, then what does P $ Q * R # S mean?

((a))
P is the father of S
((b))
P is the brother-in-law of S
((c))
P is the son of S
((d))
P is the brother of S

Show Answer

Answer: ((a))

P is the father of S

What is the angle between the hour hand and the minute hand at half past two?

((a))
105°
((b))
75°
((c))
120°
((d))
90°

Show Answer

Answer: ((a))

105°

The given Venn diagram shows the number of students who have passed in the three exams, viz. English, Science and Maths. How many students failed in all the three exams?

((a))
3
((b))
12
((c))
9
((d))
6

Show Answer

Answer: ((a))

One statement is given followed by two conclusions. Decide which of the given conclusions can definitely be drawn from the given statement.

Statement: As income increases, cars become more affordable.

Conclusion I: With greater use of technology, cars are now cheaper than they were a generation ago.

Conclusion II: Cars will become so numerous that no future technology will solve the traffic problem.

((a))
Only conclusion I follows
((b))
Both I and II follow
((c))
Neither I nor II follows
((d))
Only conclusion II follows

Show Answer

Answer: ((a))

Only conclusion I follows

A postman starts from the post office and cycles 13 km south, then turns west and cycles 10 km, then turns north and cycles 8 km, then turns east and cycles 2 km and then turns to his left and cycles 5 km. Where is he now with reference to his starting position?

((a))
8 km east
((b))
12 km east
((c))
12 km west
((d))
8 km west

Show Answer

Answer: ((a))

8 km east

Here are some words from an artificial language.

unacri means lighthouse

bancri means lightweight

banetu means overweight

Which word would mean ‘overdrive’?

((a))
adiban
((b))
adietu
((c))
simuna
((d))
criteh

Show Answer

Answer: ((a))

adiban

At present, the ratio between the ages of Anu and Dimpy is 5 : 8. After 2 years, the ratio of their ages will become 2 : 3. What was Dimpy’s age before 2 years?

((a))
10
((b))
12
((c))
16
((d))
14

Show Answer

Answer: ((a))

In the question, two statements are given, followed by three conclusions, I, II and III. You have to consider the statements to be true even if they seem to be at variance with commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statement:

All flags are banners.

Some flags are emblems.

Conclusion:

I. Some emblems are banners.

II. All banners are emblems.

III.No emblems are banners.

((a))
Only conclusion I follows
((b))
Only conclusion III follows
((c))
All conclusions I, II and III follow
((d))
Only conclusion I and III follow

Show Answer

Answer: ((a))

Only conclusion I follows

Choose the one which is different from the rest.

((a))
Father
((b))
Son
((c))
Mother-in-law
((d))
Brother

Show Answer

Answer: ((a))

Father

Select the option that is related to the third word on the same basis as the second word is related to the first word.

Poem : Stanza ∷ Book : ?

((a))
Language
((b))
Story
((c))
Page
((d))
Printing

Show Answer

Answer: ((a))

Language

If 8 # 12 = 10; 5 # 9 = 7; 6 # 10 = 8, then find the value of 14 # 4.

((a))
10
((b))
9
((c))
5
((d))
3

Show Answer

Answer: ((a))

In a certain code DIRTY is coded as 24759 and FOAM is coded as 1863. Using the same code ARID will be coded as ______.

((a))
2489
((b))
9165
((c))
1579
((d))
6742

Show Answer

Answer: ((a))

2489

In the following question, which set of letters and numbers, when sequentially placed at the gaps in the given series, shall complete it?

1_2x_bb_yy_cc_6zzz

((a))
a345c
((b))
3a45b
((c))
3a4b5
((d))
3a45c

Show Answer

Answer: ((a))

a345c

A said to B, “You are my husband’s daughter-in-law’s son.” How is B related to A?

((a))
B is the father of A
((b))
B is the grandson of A
((c))
B is the brother of A
((d))
B is the son of A

Show Answer

Answer: ((a))

B is the father of A

In the question, two statements are given, followed by two conclusions, I, and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statement 1: Some wagons are buggies.

Statement 2: All wagons are carts.

Conclusion I: All buggies are carts.

Conclusion II: Some carts are buggies.

((a))
Only conclusion I follows
((b))
Both I and II follow
((c))
Neither I nor II follows
((d))
Only conclusion II follows

Show Answer

Answer: ((a))

Only conclusion I follows

Rearrange the parts of the sentence in the correct order.

A customer based on reasons

X- chances are that they actually made the change

Y- may not come out of the changing room, but

Z- which is unfortunately inappropriate

((a))
YXZ
((b))
ZYX
((c))
XZY
((d))
ZXY

Show Answer

Answer: ((a))

YXZ

Find the power (in W) of a pump if it can lift 1 tonne of water by 90 m in 30 minutes. (Assume 100% efficiency and use g= 10 m/s²)

((a))
50
((b))
250
((c))
25
((d))
500

Show Answer

Answer: ((a))

Which of the following is an example of a first class lever?

((a))
Ice tongs
((b))
Wheel barrow
((c))
A pair of scissors
((d))
Nut cracker

Show Answer

Answer: ((a))

Ice tongs

_______ curves employ at least three points to define a curve. The two endpoints of the curve are called anchor points. The other points, which define the shape of the curve, are called handles, tangent points, or nodes.

((a))
Bicorn
((b))
Bezier
((c))
Deltoid
((d))
Kappa

Show Answer

Answer: ((a))

Bicorn

Find the efficiency of a pulley system which has a mechanical advantage of 2.5 and where the load lifts by 2.5 meters on pulling the rope by 10 m.

((a))
62.50%
((b))
25.00%
((c))
40.00%
((d))
100.00%

Show Answer

Answer: ((a))

62.50%

________ is when we cover a surface with a pattern of flat shapes so that there are no overlaps or gaps.

((a))
Tessellation
((b))
Tracking
((c))
Gradient
((d))
Kerning

Show Answer

Answer: ((a))

Tessellation

If half a litre of hot water at 90°C is mixed with three and a half litres of cold water at 10° C, find the final equilibrium temperature (in °C) if no heat is lost.

((a))
20
((b))
40
((c))
30
((d))
50

Show Answer

Answer: ((a))

Two children, weighing 30 kg and 15 kg, sit on one side of a see-saw at a distance of 1 m and 1.2 m respectively, from the fulcrum. A boy of 'M' kg sits on the other side of the see-saw at a distance of 1.2 m from the fulcrum, and the see- saw is in equilibrium. Find M.

((a))
36
((b))
45
((c))
48
((d))
40

Show Answer

Answer: ((a))

Find the heat capacity of a pan of mass 200 g, if its temperature rises by 8° C on receiving 2000 J of heat.

((a))
250 JK^-1
((b))
5 JK^-1
((c))
50 Jkg^-1K^-1
((d))
1.25 Jkg^-1K^-1

Show Answer

Answer: ((a))

250 JK^-1

210 mm × 297 mm are the dimensions of ______ size paper.

((a))
A4
((b))
A2
((c))
A3
((d))
A1

Show Answer

Answer: ((a))

The sentences given in the question, which, when properly sequenced, form a coherent paragraph. Each sentence is labelled with a letter. Choose the most logical order of sentences from among the given choices to construct a coherent paragraph.

Outside their window there was a vine with attractive foliage, but it started shedding leaves one by one as summer passed through fall into winter.

A - Came dawn, when Johnsy looked out of the window from her sick bed, lo and behold, the leaf was still there and it continued to be there on the following days.

B - Finally, only one last leaf remained. Johnsy told Sue that when that leaf fell, her life would also go.

C - The girl regained her will to live and was fully recovered in a few days.

D - A concerned elderly artist friend of the girls, hearing this story, climbed outside the window in the bitterly cold night and painted a life-like leaf at the spot from where the last leaf had just fallen.

((a))
BDCA
((b))
BDAC
((c))
DBCA
((d))
DBAC

Show Answer

Answer: ((a))

BDCA

An object with greater ______ has greater inertia.

((a))
velocity
((b))
acceleration
((c))
volume
((d))
mass

Show Answer

Answer: ((a))

velocity

Find the specific heat capacity (in Jg^-1K^-1) of a block of metal of mass 500 g, the temperature of which rises by 80°C when it absorbs 10 kJ of heat?

((a))
0.4
((b))
0.16
((c))
1.56
((d))
0.25

Show Answer

Answer: ((a))

0.4

Find the specific latent heat of vaporisation of 1.25 g of nitrogen (in Jg^-1), if it releases 250 Joules of heat when it condenses at its boiling point of 196° C.

((a))
469
((b))
500
((c))
312.5
((d))
200

Show Answer

Answer: ((a))

469

100

An arrowhead at the end of a dimension line is approximately _________ long and 1 mm wide.

((a))
3 mm
((b))
5 mm
((c))
1 mm
((d))
1.5 mm

Show Answer

Answer: ((a))

3 mm

Part B (75 questions)

101

Which of the following equipment is used in arc welding?

((a))
Gl Wire
((b))
Soldering wire
((c))
Electrode
((d))
Plastic stick

Show Answer

Answer: ((a))

Gl Wire

102

Which part of ball peen hammer is used for shaping and forming work?

((a))
Peen
((b))
Face
((c))
Chik
((d))
Wedge

Show Answer

Answer: ((a))

Peen

103

Which equipment is used to measure the internal dimensions of a part, such as the internal diameter of a hole or tube?

((a))
Inter-measuring micrometer
((b))
Dial gauge
((c))
Outer-measuring micrometer
((d))
Bore dial gauge

Show Answer

Answer: ((a))

Inter-measuring micrometer

104

The fuel injectors of the engine are fitted with:

((a))
Cylinder
((b))
Combustion chamber
((c))
Clearance volume
((d))
Cylinder head

Show Answer

Answer: ((a))

Cylinder

105

The diameter of the crankshaft is measured:

((a))
By bore dial gauge
((b))
By feeler gauge
((c))
By outer-measuring micrometer
((d))
By Inter-measuring micrometer

Show Answer

Answer: ((a))

By bore dial gauge

106

Which type of file is used to file angles and corners that measure more than 60°?

((a))
Triangular File
((b))
Round file
((c))
Square File
((d))
Knife-edge file

Show Answer

Answer: ((a))

Triangular File

107

What happens to the engine when the fan belt is too tight?

((a))
Water pump stops working.
((b))
The radiator gets hot.
((c))
Engine gets hot.
((d))
Engine starts running slowly.

Show Answer

Answer: ((a))

Water pump stops working.

108

When starting the engine, the starter motor pinion engages with the _______.

((a))
Camshaft
((b))
Flywheel ring gear
((c))
Clutch
((d))
Crankshaft

Show Answer

Answer: ((a))

Camshaft

109

What material is a chisel made of?

((a))
Lead
((b))
High Carbon Steel
((c))
Aluminum
((d))
Tin

Show Answer

Answer: ((a))

Lead

110

On which of the following does the capacity of an automobile battery depend?

((a))
On battery size
((b))
At temperature
((c))
Over voltage
((d))
On the number of plates and their size

Show Answer

Answer: ((a))

On battery size

111

The distance between the centerlines of the main journal and the crank shaft pin is called:

((a))
Balance weight
((b))
Crank throw
((c))
Web
((d))
Pitch

Show Answer

Answer: ((a))

Balance weight

112

Twist drill is specified according to its _______.

((a))
speed, weight and diameter
((b))
diameter, type of tool and material
((c))
width, height and type of tool
((d))
speed, height and material

Show Answer

Answer: ((a))

speed, weight and diameter

113

The specific density of diesel is:

((a))
1.05
((b))
0.5
((c))
0.60
((d))
0.84

Show Answer

Answer: ((a))

1.05

114

The fins at the top of the cylinder of a motorcycle engine are longer than those at the bottom because:

((a))
hot air rises
((b))
more space at the top
((c))
Requires extra strength in the upper body
((d))
they are in the non-exposed position

Show Answer

Answer: ((a))

hot air rises

115

In lead acid battery:

((a))
only electrical energy is stored
((b))
only chemical energy is stored
((c))
mechanical energy is stored, which is converted into electrical energy
((d))
chemical energy is stored, which is converted into electrical energy

Show Answer

Answer: ((a))

only electrical energy is stored

116

_______ is a high-current relay (switch) used to connect the battery to the starting motor.

((a))
Starter motor
((b))
Solenoid
((c))
Ignition switch
((d))
Crankshaft

Show Answer

Answer: ((a))

Starter motor

117

When the specific density of the electrolyte of a starter battery decreases to 1.12 gm/cm3, what is the condition of the battery?

((a))
in discharging condition
((b))
in charging condition
((c))
In condition of failure to provide starting current
((d))
In condition of short circuit

Show Answer

Answer: ((a))

in discharging condition

118

Which of the following is a part of the cooling system?

((a))
Piston
((b))
Connecting rod
((c))
Thermostat valve
((d))
Crank pin

Show Answer

Answer: ((a))

Piston

119

When riveting aluminium sheets, what material should the rivet be made of:

((a))
Tin
((b))
Mild steel
((c))
Aluminum
((d))
Copper

Show Answer

Answer: ((a))

Tin

120

Which of the following switches is used in the starting system?

((a))
Float switch
((b))
Inertia switch
((c))
Solenoid switch
((d))
Toggle switch

Show Answer

Answer: ((a))

Float switch

121

The large end of the connecting rod is connected to the crankshaft by _________.

((a))
Wrist pin
((b))
Piston pin
((c))
Ghazan pin
((d))
Crank pin

Show Answer

Answer: ((a))

Wrist pin

122

Sharpened flat chisels are used for:

((a))
to cut wires
((b))
to remove unwanted metals
((c))
to chop nuts
((d))
for providing finishing to metals

Show Answer

Answer: ((a))

to cut wires

123

What happens when the water level in the radiator is low?

((a))
Engine seizes.
((b))
Engine doesn't start.
((c))
Crankshaft does not rotate.
((d))
Engine overheats.

Show Answer

Answer: ((a))

Engine seizes.

124

What takes place during the compression stroke in a 4-stroke diesel engine?

((a))
Exhaust gases come out.
((b))
The air-fuel mixture is compressed.
((c))
Air enters the combustion chamber.
((d))
Only air is compressed in the combustion chamber.

Show Answer

Answer: ((a))

Exhaust gases come out.

125

The main function of a supercharger is -

((a))
increase air density
((b))
increasing the density of smoke in the exhaust
((c))
increase oil consumption
((d))
increase engine rpm

Show Answer

Answer: ((a))

increase air density

126

The time period before the valve opens is called:

((a))
Valve gap
((b))
Valve lead
((c))
Overlap
((d))
Lapping

Show Answer

Answer: ((a))

Valve gap

127

The green light in the fault indicator lamp denotes:

((a))
System requires immediate servicing
((b))
Serious problem or security issue
((c))
System needs to be repaired
((d))
The system is working normally

Show Answer

Answer: ((a))

System requires immediate servicing

128

The term EGR is related to -

((a))
from vehicle exhaust system
((b))
from vehicle braking system
((c))
from the lubrication system of the vehicle
((d))
from vehicle suspension system

Show Answer

Answer: ((a))

from vehicle exhaust system

129

What is the point angle of the center punch?

((a))
45°
((b))
30°
((c))
90°
((d))
60°

Show Answer

Answer: ((a))

45°

130

What is the point angle of the drill used to drill copper?

((a))
80°
((b))
45°
((c))
30°
((d))
140°

Show Answer

Answer: ((a))

80°

131

Port is used:

((a))
in single stroke engine
((b))
in 6 - stroke engine
((c))
in 2 - stroke engine
((d))
in 4 - stroke engine

Show Answer

Answer: ((a))

in single stroke engine

132

The equipment, which controls the acurrent or voltage flow and acts as a switch or gate for electronic signals is called:

((a))
Relay
((b))
Diode
((c))
Transistor
((d))
Insulator

Show Answer

Answer: ((a))

Relay

133

What is the voltage generated by the spark plug?

((a))
1800 V
((b))
180000 V
((c))
18000 V
((d))
180 V

Show Answer

Answer: ((a))

1800 V

134

What is the function of bearing?

((a))
Generate heat
((b))
Ease of motion of shafts and gears
((c))
Balancing shaft
((d))
Rotate at high speed

Show Answer

Answer: ((a))

Generate heat

135

What is the main cause of battery failures?

((a))
Container failure
((b))
Vent cap loose
((c))
High electrolyte levels
((d))
Incorrectly mixed electrolyte

Show Answer

Answer: ((a))

Container failure

136

Identify the part shown in the following figure.

((a))
Plain washer
((b))
Lock plate
((c))
Toothed lock washer
((d))
Split lock washer

Show Answer

Answer: ((a))

Plain washer

137

Torque wrench is used for:

((a))
to tighten the brakes
((b))
for adjusting bolts and nuts
((c))
to tighten bolts and nuts
((d))
to tighten the wires

Show Answer

Answer: ((a))

to tighten the brakes

138

Which of the following is used as electrolyte in lead acid battery?

((a))
CH3 COOH
((b))
H2SO4
((c))
NaCl
((d))
HNO3

Show Answer

Answer: ((a))

CH3 COOH

139

The movement of piston from TDC to BDC is called:

((a))
Stroke
((b))
Volumetric efficiency
((c))
BHP
((d))
Clearance volume

Show Answer

Answer: ((a))

Stroke

140

Which of the following oil has the highest viscosity grade?

((a))
SAE - 30
((b))
SAE - 120
((c))
SAE - 5
((d))
SAE - 90

Show Answer

Answer: ((a))

SAE - 30

141

Which of the following instruments is used to reduce the smoke of the drainage?

((a))
Lambda sensor
((b))
Catalytic converter
((c))
Turbulence Air Filter
((d))
EGR valve

Show Answer

Answer: ((a))

Lambda sensor

142

Outer-measuring micrometer is used for:

((a))
to measure internal diameter
((b))
to measure depth
((c))
to measure length
((d))
to measure outer diameter

Show Answer

Answer: ((a))

to measure internal diameter

143

What form of energy is used by an automobile engine?

((a))
Thermal energy
((b))
Nuclear energy
((c))
Electrical energy
((d))
Chemical energy

Show Answer

Answer: ((a))

Thermal energy

144

Which of the following is used as a coating material in a catalytic converter?

((a))
Tin, Lead and Brass
((b))
Vanadium, Rhodium and Palladium
((c))
Steel, Carbon and Aluminum
((d))
Brass, Tin and Iron

Show Answer

Answer: ((a))

Tin, Lead and Brass

145

In a diesel engine, the function of the fuel injector is:

((a))
injecting fuel into the crankcase
((b))
develop pressure to inject fuel
((c))
injecting fuel into the combustion chamber
((d))
supply fuel to the filter

Show Answer

Answer: ((a))

injecting fuel into the crankcase

146

In grinding wheels, the commonly used manufactured grinding is:

((a))
Lead alloy
((b))
Steel Alloy
((c))
Aluminum oxide
((d))
Tin alloy

Show Answer

Answer: ((a))

Lead alloy

147

The difference between the maximum and minimum sizes allowed for the manufacturing of a component is called:

((a))
Allowance
((b))
tolerance
((c))
clearance
((d))
air gap

Show Answer

Answer: ((a))

Allowance

148

What are the colors used on signs used for fire extinguisher equipment?

((a))
Pictogram in white on a red background
((b))
Pictogram in white on a green background
((c))
Pictogram in white on a black background
((d))
Pictogram in yellow on black background

Show Answer

Answer: ((a))

Pictogram in white on a red background

149

The cross-section of the connecting rod is -

((a))
L - section
((b))
D - section
((c))
P - section
((d))
I - section

Show Answer

Answer: ((a))

L - section

150

What is a multimeter used to measure?

((a))
Only current and voltage
((b))
Current, voltage and resistance
((c))
Only AMP
((d))
Only voltage

Show Answer

Answer: ((a))

Only current and voltage

151

Which of the following batteries is not commonly used in automobile engines in India?

((a))
18 V
((b))
12 V
((c))
20 V
((d))
6 V

Show Answer

Answer: ((a))

18 V

152

Which of the following filters is fitted on the intake manifold?

((a))
Air filter
((b))
Fuel filter
((c))
Oil filter
((d))
Pollen filter

Show Answer

Answer: ((a))

Air filter

153

Which of the following is an example of an electrical insulator?

((a))
Gold
((b))
Plastic
((c))
Aluminum
((d))
Copper

Show Answer

Answer: ((a))

Gold

154

Which of the following equipment can be used to check bending and incline of connecting rods?

((a))
Surface plate
((b))
Dial test indicator
((c))
Connecting rod alignment jig
((d))
Straight edge

Show Answer

Answer: ((a))

Surface plate

155

The duration during which the inlet and exhaust valves remain open is called:

((a))
Valve duration
((b))
Valve lag
((c))
Valve overlap
((d))
Valve lead

Show Answer

Answer: ((a))

Valve duration

156

Expand the term VTVT.

((a))
Variable Valve Timing and Lift Electronic Control
((b))
Variable Valve Variable Timing
((c))
Variable Valve Timing
((d))
Variable Timing Valve Train

Show Answer

Answer: ((a))

Variable Valve Timing and Lift Electronic Control

157

In which type of EGR system, engine vacuum is used to operate the EGR valve?

((a))
Piston controlled
((b))
Vacuum controlled
((c))
Water controlled
((d))
Load controlled

Show Answer

Answer: ((a))

Piston controlled

158

__________ is a cutting tool used for cutting external threads.

((a))
Tap
((b))
Drill
((c))
Reamer
((d))
Die

Show Answer

Answer: ((a))

Tap

159

Which of the following is tightened with wing nuts?

((a))
Air cleaner
((b))
Tappet
((c))
Valve
((d))
Head bolt

Show Answer

Answer: ((a))

Air cleaner

160

Which of the following is a sensor?

((a))
Spark plug
((b))
Relay
((c))
Crankshaft Position
((d))
Injector

Show Answer

Answer: ((a))

Spark plug

161

IC engine is divided into three parts called _______.

((a))
Crankcase, Sump & Oil Pump
((b))
Cylinder head, Piston and Crankshaft
((c))
Cylinder block, Camshaft and Crankshaft
((d))
Cylinder head, Cylinder block and Crankcase

Show Answer

Answer: ((a))

Crankcase, Sump & Oil Pump

162

Which of the following can be measured using an inter-measuring micrometer?

((a))
Outer diameter of pipes
((b))
Outer diameter of ball bearing
((c))
Head Surface Diameter
((d))
Inner diameter of pipes

Show Answer

Answer: ((a))

Outer diameter of pipes

163

In a diesel engine, the starter motor is a:

((a))
DC series motor
((b))
DC shunt motor
((c))
single-phase AC motor
((d))
synchronous motor

Show Answer

Answer: ((a))

DC series motor

164

What is the specific density of a fully charged battery?

((a))
0.290
((b))
1.110
((c))
1.200
((d))
1.290

Show Answer

Answer: ((a))

0.290

165

What is the name of the device shown in the picture?

((a))
Scale
((b))
Torque wrench
((c))
Screwdriver
((d))
Socket spanner

Show Answer

Answer: ((a))

Scale

166

Which of the following orders best describes how the fuel feed system's components are arranged in common rail direct injection?

((a))
Fuel Filter, Fuel Tank, Common Rail, Low Pressure Fuel Pump, High Pressure Fuel Pump, Injector & Engine
((b))
Fuel Tank, Low Pressure Fuel Pump, Fuel Filter, High Pressure Fuel Pump, Common Rail, Injector & Engine
((c))
Fuel Tank, High Pressure Fuel Pump, Common Rail, Low Pressure Fuel Pump, Fuel Filter, Injector & Engine
((d))
Fuel Tank, Low Pressure Fuel Pump, Fuel Filter, Injector, Engine, High Pressure Fuel Pump and Common Rail

Show Answer

Answer: ((a))

Fuel Filter, Fuel Tank, Common Rail, Low Pressure Fuel Pump, High Pressure Fuel Pump, Injector & Engine

167

A two-stroke diesel engine is used in:

((a))
Marine application
((b))
road transport vehicles
((c))
fork lift
((d))
Spacecraft

Show Answer

Answer: ((a))

Marine application

168

Which of the following is an example of a variable resistance sensor?

((a))
cam position sensor
((b))
Throttle position sensor
((c))
Crank position sensor
((d))
Oxygen sensor

Show Answer

Answer: ((a))

cam position sensor

169

In IC engines, the inlet air temperature sensor is installed:

((a))
on camshaft
((b))
on the exhaust manifold
((c))
on crankshaft
((d))
on inlet manifold

Show Answer

Answer: ((a))

on camshaft

170

An injector and pump combined into one unit above each cylinder controlled by a camshaft is called:

((a))
Distributor pump
((b))
Jerk pump
((c))
Unit injector
((d))
Inline pump

Show Answer

Answer: ((a))

Distributor pump

171

Which of the following term is not related to battery?

((a))
Electrolyte
((b))
Bendix
((c))
Vent cap
((d))
Cell divider

Show Answer

Answer: ((a))

Electrolyte

172

Which of the following is not a part of the turbocharger?

((a))
Thrust bearing
((b))
Compressor wheel
((c))
Turbine wheel
((d))
Muffler

Show Answer

Answer: ((a))

Thrust bearing

173

Hacksaw blades have standard lengths:

((a))
100 mm
((b))
150 mm
((c))
250 mm
((d))
200 mm

Show Answer

Answer: ((a))

100 mm

174

What is the full form of RTV in the context of RTV sealer?

((a))
Road Tyre Vulcanising
((b))
Room Temperature Vulcanising
((c))
Restricted Temperature Voltage
((d))
Rigid Thickness Volatile

Show Answer

Answer: ((a))

Road Tyre Vulcanising

175

A centre punch is used for:

((a))
drilling on base plates
((b))
point marking
((c))
chipping metal
((d))
cutting metal

Show Answer

Answer: ((a))

drilling on base plates

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