Previous Exams

Junior Instructor (Mechanic Motor Vehicle) - 2015

 

Time Remaining :
1. What type of clutch is used in two wheelers?
Multi plate clutch

Cone clutch

Single plate clutch

Diaphragm Clutch
2. In Hotchkiss drive ,rear end driving torqueis taken up by :
Rear axle housing

Rear leaf spring

Shock absorber

Engine mounting
3. The main function of a universal joint is to :
Transfer the engine power in a straight line only

Accommodate change in length of drive shaft

Allow variation of angle between main shaft and drive shaft

All of the above
4. The component of an automobile transmission system that facilitate the drive to turn at right angle are :
Planet pinion and sun gear

Bevel pinion and sun gear

Crown wheel and sun gear

Bevel pinion and Crown wheel
5. Transfer case is used for :
Rear wheel drive vehicles

Front wheel drive vehicles

Four wheel drive vehicles

Two wheel drive vehicles
6. The driven member of torque converter is known as :
Turbine

Stator

Impeller

Flywheel
7. Double declutching is used on :
Sliding mesh gear box

Synchromesh gear box

Constant gear box

Epicyclic gear box
8. In a differential action which gear does not revolve in a straight drive ?
Sun gear

Planetary gear

Crown wheel

Pinion
9. The function of a gear box is to :
Increase speed

Increase torque

Provide neutral

All of the above
10. Which type of gear permit lower position of proppeller shaft?
Herringbone

Hypoid

Bevel

Spiral
11. The head light of a vehicleis connected wit a battery in :
Parellel

Series

Compound

Either (a) or (b)
12. The state of charge of battery is checked by :
Cell tester

Hydrometer

Multimeter

All of the above
13. If three resistance 6 ohm, 4 ohm and 3 ohm are connected in parallel, what will be the total resistance ?
13 ohm

1.3 ohm

6.5 ohm

26 ohm
14. Which one of the shell around the nucleus of an attom is mentioned by the letter EM ?
First

second

Third

Fourth
15. One reason why an alternator produces a higher output than a dynamo is because,the alternator :
Is driven fast

Has a commutator

Generates direct current

Always use a negative earth
16. The output of an alternator is converted by :
Voltage regulator

Current regulator

Diod rectifier

Cut out relay
17. Inertia type starting motor drive is commonly used on :
Cars

Heavy vehicles

Commercial vehicles

None of the above
18. The cable colour code of a head lamp circuit is :
Red

Brown

Green

Blue
19. A semiconductor material have ,how mutch electrons in its outermost orbit ?
Two

Four

One

Three
20. The central section of a transistor is called ?
Emitter

Base

Collector

Hole
21. If air fuel mixture is compressed in a cylinder :
Its volume reduces

Its pressure will rise

Its temperature will

All of the above
22. An engine has aclearance volume of 100 cm3 and a swept volume of 900cm3. The compression ratio is :
10 : 1

8 :1

11 : 1

9 : 1
23. Speed of a four stroke engine is 1000 rpm.The number of power strokes per minute will be :
4000

500

400

1000
24. During which one of the following strokes,the pressure in the engine cylinder become less than the atmospheric pressure?
Suction

Compression

Power

Exhaust
25. Diesel cycle engine are also known as :
Constant volume cycle engine

Constant vaccum cycle engine

Constant pressure cycle engine

Dual cycle engines
26. 1 Kilowatt is equal to :
746 HP

4500 HP

1.3596 HP

735.5 HP
27. Engine BHP is measured by :
Barometer

Hydrometer

Odometer

Dynamometer
28. Turbo charger is used for diesel engines to increase :
Mechanical efficiency

Volumetric efficiency

Thermal Efficiency

All of the above
29. During the upward stroke of a two stroke petrol engine ,which of the following events takes place ?
Compression and suction

Compression and exhaust

Compression and power

Compression and transfer
30. In the following statements, which is suitable for a petrol engine
High initial cost

High maintenance cost

High runnig cost

All of the above
31. A four cylinder four strock :petrol engine have :
Two Valves

Four Valves

Eight Valves

Sixteen Valves
32. The purpose of piston ring is to control :
Compression pressure

Oil consumption

Cylinder wall lubrication

All of the above
33. The engine valves are closed by :
Cam shaft

Valve spring

Rocker arm

Push road
34. The function of lubrication system is to :
Provide cooling effect

Provide sealing effect

Reduce wear

All of the above
35. Which one of the following pump is not used for engine lubrication ?
Gear type

Vane type

Impeller type

Plunger type
36. Feed pumps in diesel engines are generally mounted in between :
Tank and filter

FIP and Filter

FIP and Injector

Injector and manifold
37. Hand priming device in a diesel engine is usefull,when the engine is at :
Full load

Rest

Idling speed

Full speed
38. In a positive crank case ventilation system,the blow by gas drawn from the crank is fed to the :
Combustion chamber

Inlet manifold

Exhaust manifold

A vent opened to the atmosphere
39. The total swept volume in all cylinders of an engine is called :
Volumetric efficiency

Overall efficiency

Compression ratio

Cubic capacity
40. The material used for cam shaft is :
Alloy steel

High carbon steel

Cast iron

Mild steel
41. Advancing of valve opening is called :
Valve overlap

Valve lag

Valve lead

Valve Delay
42. Octane number of petrol is generally ranges from :
8090

4060

6070

100110
43. Loud popping in carburetor is due to :
Incorrect air fuel ratio

Blocked air cleaner

Back firing

Loose mounting of carburetor
44. In which of the following engine have more thermal efficiency?
Petrol

Diesel

Gas

Electric
45. From where ,the air and fuel is mixed in a petrol engine?
Inletmanifold

Combustion chamber

Air cleaner

Carburetor
46. The process of adjusting the quantity of fuel delivered by the fuel injection pump is :
Phasing

Calibration

Timing

Bleeding
47. The type of carburetor used in two wheeler vehicle is :
SU

Solex

Carter

Zenith
48. Air cleaner is used for :
Cleaning the incoming air for combustion

Reducing the noise of incoming air

To arrest the flame during engine back fire

All of the above
49. The function of ignition coil is :
To make and break the primary circuit

To step down the battery voltage

To step up the battery voltage

All of the above
50. Spark plug gap ranges from :
5 mm 10mm

0.5 mm 1 mm

1 mm 5mm

0.5 mm 3.5 mm
51. MPFI engines have MAP sensor.What is mean by MAP ?
Main Fold Absolute Pressure

Maximum Air Pressure

Mainfold Air Pressure

Mean Atmospheric Pressure
52. Turbocharger is worked by the :
Engine crank shaft

Battery

Exhaust gas

Incoming air
53. Which one of the following is a pollutant substance contained in the engine exhaust gas?
Hydrocarbon

Carbon Monoxide

Oxides of Nitrogen

All of the above
54. EGR system stands for :
Exhaust Gas Recovery System

Exhaust Gas Removing System

Exhaust Gas Recirculation System

Exhaust Gas Reducing System
55. ABS system controls :
Speed of vehicle

Break Efficiency

Skidding

All of the above
56. Multiple valve technology means :
Enlarging the size of valves

Providing more number of valves

Improving the quality of valves

Increasing the speed of valve operation 8
57. Catalytic converter have a coating of :
Platinum

Palladium

Rodium

All of the above
58. Duration of the vehicle permit is :
5 years

3 Years

1 Year

20 Years
59. Which one of the following traffic sign is strictly copulsary for a driver :
Mandatory signs

Informatory signs

Cautionary signs

All of the above
60. A driver must stop the vehicle when :
Required to do by any police officer

Involved in an accident

Any pedestrian crossing the zeebra line

All the above circumstances
61. A Preamble of Indian Constitution is based on the Objectives Resolution drafted by ________ and introduced in the first session of Constituent Assembly.
K.M. Munshi

B.R. Ambedkar

Jawaharlal Nehru

Sarojini Naidu
62. India adopted the concept of constitutional Amendment from _______
South Africa

Great Britain

Ireland

U.S.A.
63. Who acted as representative of President in Union territories?
Attorney General

Control and Auditor General

Vice- President

Lieutenant-Governor
64. The Eighth schedule of Indian constitution deals with _________.
Land reforms

Languages

Panchayathiraj

Emergency
65. Who among the following was a member of Indian constituent assembly formed in 1946?
Susheela Gopalan

Annie Mascreen

Lakshmi N. Menon

A.V. Kuttymalu Amma
66. Who was the head of the commission appointed in 1983 to examine centre - state relations?
Rajinder Singh Sarkaria

Balvanth Rai Mehta

Dinesh Goswami

Motilal Vora
67. Which day is celebrated as World Blood Donation Day ?
January 16

June 14

October 21

November 8
68. Political parties were brought under Right to information Act in the year:
2012

2013

2014

2015
69. India's first fast tract court for dealing with atrocities against women and children is at :
Malda

Patna

Pune

Kochi
70. Wild life protection act was passed in the year ____________.
1963

1970

1972

1980
71. The English news paper 'Pro- India' was started by ________________?
Chettoor Sankaran Nair

Chembakaraman Pillai

Nilaknda Brahmachari

V.O. Chithambaram pillai
72. Who founded Ramakrishna Advita Ashram at Kalady
Swami Agamananda

Bhrahmananda Swami Sivayogi

Vaikunda swamikal

Vagbhadananda
73. The newspaper 'Kerala Kaumudhi' was started by _______________ to further the ideals of Sree Narayan Guru:
K. Ayyappan

T.K. Madavan

Krishnaswami Aiyer

C.V. Kunjuraman
74. The title 'Vayalar Stalin' is associated with:
C.K. Kumara Panikkar

R. Shankar

A.P. Udayabhanu

T.M. Varghese
75. Who was the owner of drama 'Pattabakki'?
C.V. Raman Pillai

K. Damodaran

M.P. Bhattathirippadu

E.V. Krishnapillai
76. Who among the following was nominated to Cochin legislative assembly to advice about the Namboodiri Bil?
Parvathi Nenmeni Mangalam

Arya Pallam

Eshwari Ammal

Kaumudi Teacher
77. Who is known as the fathe r of malayalam typography and printing ?
Herman Gundert

Benjamin Bailey

Devj Bhimji

Kandathil Varghese Mappila
78. Who is the author of the work 'Pracheenamalyalam'?
Ayyankali

C. Krishnan

Poikai Yohannan

Chatambi Swamikal
79. At Sreenarayan Guru Consecrated a temple and installed a stone containing tha words " Truth, Duty , Kindness and Peace".
Kalavankode

Aruvippuram

Murakumpuza

Karamukku
80. Who was the main leader of the Suchindram Sathyagraha?
A.K Gopalan

Dr. M.E. Naidu

K. Kelappan

C. Rajagopalachari
81. Which one of the following is an indirect measuring tool?
Iside caliper

Vernier caliper

Bevel Protractor

Inside micrometer
82. In a metric micrometer , a complete revolution of thimble advances :
0.01 mm

0.25 mm

0.50 mm

1.00 mm
83. The angle less than 90 degree is called :
Obtuse angle

Acute angle

Right angle

None of the above
84. Which one of the following designation does not denote the grade of a file ?
Bastard

First cut

Second cut

Smooth
85. The tool used for refitting piston rings on piston is :
Piston ring expander

Piston ring compressor

Circlip piler

Valve spring compressor
86. In which nut having an internal groove cut,in which a fibre or nylon ring inserted ?
Thumb nut

Castle nut

Cape nut

Simmonds lock nut
87. The tools used to measure the clearance between two surfaces is called :
Fillet gauge

Snap gauge

Feeler gauge

Limit gauge
88. Tap wrenchis a tool used to make :
Key ways

Oil holes

External threads

Internal threads
89. A metal can be drawn in to wires without ruputure.This property of metal is known as :
Malleability

Ductility

Machinability

Toughness
90. The angle which is less than 90 degree is called as :
Obtuse angle

Acute angle

Right angle

None of the above
91. Wear on one side of tyre is due to ;
Excessive camber

Excessive caster

Under inflation

Over inflation
92. King pin is locked in the beam by a :
Stub axle

Cotter pin

Drop arm

Split pin
93. Tie rod ends have the following threads :
Left thread

Right hand

Either (a) or (b)

Both (a) and (b)
94. Which one of the following is not considered for calculating the unsprung weight?
Streering knuckle

Brakes

Axles

Chassis frame
95. In an integral power steering system,fluid flow is controlled by :
Plunger

Check valve

Spool valve

Hydraulic pump
96. Which one of the following is not a part of master cylinder ?
Piston

Push rod

Check valve

Piston rings
97. In air breakes ,what is the position of valves in break valve,when break pedal is Released?
Both Inlet and Outlet closed

Inlet closed and outlet opened

Inlet opened and outlet closed

Both inlet and outlet remains closed
98. The procedure of removing air out of the breaking system is known as :
Brake adjusting

Brake dragging

Brake bleeding

Brake compensating
99. Hydraulic brakes works on the principle of :
Pascal's law

Boyel's law

Charl's law

Newton's law
100. The rocking chair action of vehicle during running is known as :
Rolling

Pitching

Bouncing

Wobbling