Previous Exams

Trademan-Diesel Mechanic-2017

 

Time Remaining :
1. Super charging in a diesel engine is also called:
Scavenging

Boosting

Cleaning

Silencing
2. Thermostat valve strats to open above:
20%

50%

80%

90%
3. The oil pan in an engine is made of:
Steel or aluminium

Steel or cast iron

Cast iron or brass

Cast iron or zinc
4. The rate of doing work is called:
Energy

Power

Torque

Force
5. Which one of following is an insulator:
Aluminium

Copper

Iron

Mica
6. One Newton is equal to:
Answer1

Answer2

Answer3

Answer4
7. Which part of the piston is subjected two high pressure and temperature?
Skirt

Ring section

Hand

Crown
8. Venturi unit and diaphragm unit are the to main parts of the following Governors:
Pneumatic

Hydroic

Mechanical

Servo
9. The stroke of an engine is:
Length of the connecting rod

Distance between T.D.C and B.D.C.

Volume of the cylinder

Inside diameter of the cylinder
10. The compression ratio in a diesel engine can be as high as:
18:1

12:1

14:1

25:1
11. A 12 V lead acid battery consist of:
Three cells in series

Six cells in series

Three cells in parallel

Six cells in parallel
12. The diesel engine usually emits excessive smoke during:
Starting

Idling

Accleration

Decelerating
13. The thermostat valve starts to open at about:
20degreeC

50degreeC

90degreeC

80degreeC
14. The number of ignition coils a distributorless ignition system for a six cylinder engine is
20%

3

6

12
15. Oil bath air cleaner is serviced:
After every 2000 km

After every 3000 km

After every 4000 km

After every 5000 km
16. Radiator core should be cleaned by:
Out side the fan side

Reverse flushing

Top to bottom of core

Top hose to bottom house
17. The minimum graduation of an engineer's steel rule is:
0.25 mm

0.50 mm

0.75 mm

1.00 mm
18. The Instrument used to measure cylinder bore diameter is:
Out side micrometer

Vernier caliper

Telescopic gauge

Bore dial gauge
19. C.B.point are generally made of:
Tungsten

Steel

Copper

Plastic
20. Aluminium cylinder block requires:
Aluminium liners

Brass liners

Cost iron liners

No liners
21. In a vernier micrometer,vernier scale is gradated on:
Frame

Spindle

Barrel

Thimble
22. It has to withstand high pressure and temperature piston is made out of
Copper

Cast iron

Steel

Aluminium alloy
23. The crankshaft transmit torque directly to:
Flywheel

Propeller shaft

Rod wheel

Differential
24. Exhaust valve fall angle is generally:
30 degree

45 degree

60 degree

75 degree
25. Which one of the following is not unit of pressure?
Peal

Torr

Newton

Bar
26. The unit capacitance is:
Ohm

Siemems

Farrad

Mho
27. One joule is equal to:
107 ergs

103 ergs

109 ergs

105 ergs
28. Bench vice is normally made of:
Cast iron

Cast steel

Mild steel

High speed steel
29. Deposit of carbon in the exhaust system:
Will reduce back pressure

Will have no effect on back pressure

Will increase back pressure

Will result in pressure
30. The boiling point of the coolant is increased in the cooling system which of the following makes it possible to increase the boiling point:
Pressure radiator cap

Vacuum valve

Water jackets

Radiator core
31. A governor,which provided perfect speed regulation with zero speed drop is called:
Isobar governor

Isotherm governor

Isochronous governor

Isocline governor
32. Much of the heat in the exhaust gases may be recovered by the use of:
Heat exchanged

Muffler

Manifold

Tail pipe
33. A noise produced in the cylinder of a diesel engine during combustion usually when the fuel oil has a low ignition quality is called:
Fuel burst

Fuel explosion

Fuel knock

Fuel thrust
34. In starting of diesel engine by electric starting,what is used to supply power to the power motor?
Dynamo

Gneerator

Rectifier

Battery
35. .What is the pitch of a fine hacksaw blade?
1.8 mm

1.0 mm

0.8 mm

1.4 mm
36. The resistance in an open circuit is:
Zero

Very low

Very high

Infinite
37. The fuel injection timing in a distributor type pump is controlled by:
Changing plunger stroke

Changing speed of rotor

Rotating the cam ring

Changing the number of cams on the ring
38. The special feature of pintle type nozzle is that it:
Has a single hole

Has an extended stem to form a pin

It is suitable for cold weather

Is designed for easy starting
39. Top portion of liner does not come in contact with piston.Ring forms ridge in the cylinder bore.The tool used to remove ridge.
Milling cutter

End mill cutter

Ridge cutter

Seat cutter
40. Identify the type of floating of gudgeon pin proved with circlip:
Semifloating

Full-floating

Three-quarter floating

Non-floating type
41. The most important characteristic of a lubricating oil is its:
Viscosity

Physical stability

Chemical stability

Resistance against corrosion
42. In the phasing operation the time the fuel injection in each cylinder in relation to the pump camshaft.Which one of the following is to be adjusted?
Control sleeve

Tappets

Toothed quadrant

Control rack
43. A four cylinder engine has a capacity of 2.4 litres.The swept volume of one cylinder is:
400 cm3

600 cm3

1200 cm3

2400 cm3
44. What is likely to happen if the thermostat valve remains closed?
Over heating of engine

Rough idling

Slow warming up of engine

Difficulty in starting of engine
45. A Rough file is used:
On non irregular jobs

To reduce the metal rapidly

On wood

If smooth file is not suitable
46. In order to ensure effective cooling of each cylinder of the engine is surrounded by:
Radiator

Water tube

Water ring

Water jacket
47. The main purpose of lead acid battery is to store electrical in the form of:
Kinetic energy

Potential energy

Chemical energy

Mechanical energy
48. A grinding wheel is marked:51A46 L5V-23.Here what does 5 denote?
Kind of bond

Structure

Kind of abrasive

Grain size
49. India’s position in terms of its size is:
3

4

6

7
50. Who designed our National Flag?
Pingali Vengayya

Udaya Kumar

Rabindranath Tagore

Robert Bristo
51. Which Political leader is known as Lion of Punjab?
Bhagat Singh

Sukhdev Singh

Lala Lajpath Rai

Raj Guru
52. Nagarjuna Sagar Project is situated across which river?
Godavari

Krishna

Kaveri

Thungabhadra
53. Largest island among Lakshadweep island group:
Minicoy

Kavarathi

Androth

Kalpeni
54. In which year was ICDS project launched in India?
1970

1973

1975

1980
55. Who was Political Guru of Mahatma Gandhi?
S.N.Banerji

Gopala Krishna Gokhale

M.G.Ranade

Dadabhai Naoroji
56. In which congress session was Poornaswaraj resolution passed?
Mumbai

Tripura

Lucknow

Lahore
57. District in which the Kayyur Struggle 1941 took place
Kannur

Kasarkode

Kozhikode

Wayanad
58. Which is the largest beach in Kerala?
Muzhuppilangad

Cherai

Sankumugham

Payyambalam
59. Which is the birth place of social reformer Vagbadanandha?
ollangode

Kannanmoola

Patyam

Thalassery
60. Name the Social reformer who formed the Cultural Organisation ‘Vidyaposhini’?
Pandit Karuppan

Sahodaran Ayyappan

Velukutty Arayan

Arattupuzha Velayudha Panikkar
61. In which year was ‘Sadhujana Paripalana Sangham’formed under the leadership of Ayyankali?
1903

1907

1918

1924
62. Name the Social reformer who participated in the Kakkinada Congress Session in 1923
T.K.Madhavan

Mannath Padmanabhan

C.Keshavan

K.Kelappan
63. 'God is omnipresent.I don’t go to temple in search of God.Temple is the largest institution that protects untouchability.'Who said this comment?
Swami Chinmayanandha

V.T.Battathirippad

Swami Anandhatheerthan

Swami Agamanandha
64. Who is the present Human resource minister of India?
Prakash Javedkar

Smrithi Irani

Menaka Gandhi

Uma Bharathi
65. Who is the present Vice Chairman of Planning Board in Kerala?
Aravindh Panagariya

Geetha Gopinath

V.R.Ramachandran

Sudhakar Prasad
66. Which is the first digital state in India?
Karnataka

Kerala

Seemandhra

Punjab
67. Who won the Dadasahib Phalke Award in 2015?
Shashi Kapoor

Gulzar

Adoor Gopalakrishnan

Manoj Kumar
68. Who is the sports player known as ‘Flying fish’?
Larisa Latynina

Michael Phelps

Usain Bolt

Milkha Singh
69. Which part of the engine operate the valve?
Connecting Rod

Crankshaft

Camshaft

Timing Gears
70. Inlet and exhaust ports are situated in the two stroke engine at: A. B. C. D.
Oil sump

Inlet manifold

Air filter

Cylinder valves
71. Piston Rings are commonly made of:
Cast Iron

Bronze

Zink

Copper
72. Cutting Tool used to finishing and enlarging a drilled is known as:
Die

Reamer

Bore gauge

Tap
73. A petrol engine:
Is a compression ignition

Is an external compression engine

Uses gasolian as fuel

Is a spark ignition engine
74. Which instrument used to check the specific gravity of the electrolyte of the battery:
Hygrometer

Hydrometer

Hydroscope

Lactometer
75. Engine Radiator core is made of:
Braze

Cast Iron

Plastic

Steel
76. The oil lubricating pump operated by:
Crankshaft

Rooker arm

Fly wheel

Camshaft
77. Connecting Roid connect the crankshaft and the :
Camshaft

Oil pump

Piston

Cylinder head
78. In-take Air-fuel in petrol engine burned in:
Cylinder

Caburettor

FIP

Air Filter
79. Which one of the following types of engines has the longest crankshaft?
Radial engine

Opposite engine

Inline engine

’V’engine
80. The connecting rod is built of:
Alloy steel

Brass

Cast iron

Aluminium
81. Which part Indicate the oil level on the engine sump?
Feeler gauge

Plastic gauge

Pitch gauge

Dipstick
82. The purpose of thermostatic is to keep the engine:
At desired temperature

Hot

Cool

Warm
83. Which one of the following parts is not a part of engine exhaust system?
Valve

Muffer

Pressure cap

Tail pipe
84. On the rear end of the crankshaft is mounted:
Fly wheel

Counter weight

Vibration damper

Timing sprocket
85. The minimum number compression rings in an automotive engine:
Three

Five

Two

One
86. A Diesel engine:
CI engine

SI engine

External combustion engine

Use gasoline as fuel
87. During suction stroke the charge drawn in a petrol engine is:
Petrol only

Air only

Air petrol mixture

None of the above
88. In a diesel engine feed pump is located on:
Cylinder head

FIP

Air filter

Injector
89. Valves are arranged to open before T.D.C. or B.D.C is reached this is called:
Lag

Lead

Overlap

None of the above
90. The mostly common used valve in automobile engine:
Poppet valve

Sleeve valve

Rotary valve

None of these
91. In diesel engine the fuel ignited by:
Glow plug

Spark plug

By virtue of temperature of compressed air

Injector
92. The camshaft controls:
Valve opening

Valve closing

Valve timing

All of these
94. The exhaust manifold in small diesel engine is made of:
Cast iron

Brass

Aluminium

Copper
95. Slow seeping of fuel oil from the nozzle tip after cut off the fuel is called:
Clogging

Seepage

Pouring

Dribbing
96. From the oil pump the oil goes directly to:
Oil gallery

Oil strainer

Oil filter

Pressure switch
97. The hand priming device is put to use when the engine is:
Idling

Buring at full speed

Running at full speed

Not working
99. If the thermostatic is stuck closed,the engine will:
Over heat

Warm up slowly

Fail to start

Idle
100. Which of the following conductors is used as heating elements?
Tungsten

Carbon

Copper

Nichrome