| Post Name | WORKSHOP INSTRUCTOR/ DEMONSTRATOR IN AUTOMOBILE ENGINEERING - TECHNICAL EDUCATION |
|---|---|
| Question Paper Code | 091/2023 |
| Category Code | 294/2021 |
| Date of Test | 26 June 2023 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
In die casting process, the molten metal is
i) Feed in the cavity of a metallic mould by gravity
ii) Injecting at high pressure into metallic mould
iii) Poured and allowed to solidify while the mould is revolving
iv) Forced by inserting a plunger in the cavity.
Answer
D. Only (ii)
2
long cast iron water supply and sewerage pipes are generally produced by
Answer
A. Centrifugal casting
3
Flat forgings of gear blanks are usually made by
i) Upsetting the bar stock
ii) Flattening the bar stock
iii) Swaging the bar stock
iv) Fullering the bar stock
Answer
D. Only (i)
4
Which of the following is a step of powder metallurgy ?
Answer
D. All of the mentioned
5
The amount of heat produced in resistance welding is
i) directly proportional to square of current
ii) Inversely proportional to square of current
iii) directly proportional to duration of time
iv) Inversely proportional to duration of time
Answer
C. Only (i & iii)
6
The welding process in which use non consumable electrodes.
Answer
B. Gas Tungsten Arc welding
7
The ability of a material to resist fracture due to shock and impact load.
Answer
B. Toughness
8
Gama iron is stable in the temperature range of
Answer
C. 910°C to 1403°C
9
Within elastic limit in a loaded material stress is
Answer
A. directly proportional to strain
10
The ratio of ultimate tensile stress to the working stress is called
Answer
C. Factor of Safety
11
Newton’s law of viscosity relates
Answer
C. Shear stress and angular deformation in a fluid
12
A fluid which is incompressible and having no viscosity is known as
Answer
A. Ideal fluid
13
A piezometer tube is used only for measuring _________ of liquids.
Answer
B. moderate pressure
14
Bernoulli’s equation is applied to
Answer
D. All of these
15
The pump suitable for small discharge and higher heads
Answer
C. Reciprocating pump
16
The delivery valve of a centrifugal pump is fully closed, the pressure of fluid inside
the pump will
Answer
A. Increase
17
Which of the following are intensive properties of a thermodynamic system ?
i) Kinetic Energy
ii) Temperature
iii) Pressure
iv) Volume
Answer
B. Only (ii & iii)
18
First law of thermodynamic refers to conservation of
Answer
A. Energy
19
Internal energy of a perfect gas is a function of
Answer
A. Temperature
20
In diesel cycle, heat addition takes place at
Answer
B. Constant pressure
21
The capacity of a battery is expressed in terms of
Answer
C. Ampere-Hour rating
22
Which of the following device is used to conduct specific gravity test of a battery ?
Answer
D. Hydrometer
23
The number of positive plates in a battery cell is
Answer
A. One less than the negative plate
24
The gear ratio between starting motor and flywheel is about
Answer
B. 15 : 1
25
Which of the following is known as breakerless ignition system ?
Answer
D. Electronic ignition system
26
In a 4 cylinder 4 stroke engine running at 3000 rpm, the number of sparks
produced per minute will be
Answer
B. 6000
27
The size of the spark plug indicates
Answer
A. diameter of the screwed portion
28
The ratio between the number of turns in an induction coil primary and secondary
winding is about
Answer
C. 1 : 100
29
The drive shaft in distributor is rotated at ___________ the engine speed in four
stroke engine.
Answer
A. Half
30
A solid state switch, known as thyristor is employed in
Answer
D. Capacitive discharge ignition system
31
Two general types of tyres are
Answer
A. Tube type and tubeless
32
The advantage of a tubeless tyre over tube type tyre is
Answer
D. All of these
33
In a single dry plate clutch, torsional vibrations are absorbed by
Answer
B. Coil springs known as torsional springs
34
In radial tyres
Answer
B. All plies run parallel to one another and vertical to tyre bead
35
A clutch is usually designed to transmit maximum torque which is
Answer
C. 150% of the maximum engine torque
36
The natural gas is compressed in a CNG cylinder at a pressure of
Answer
B. 250 bar
37
The purpose of adding pigment to the paint is that it
Answer
C. Gives colour and filling up effect to the paint
38
An under-inflated tyre will wear the tread most
Answer
B. Near the edges
39
When a gear box has four forward speeds and one reverse speed, it is said to be a
Answer
A. 4-speed gear box
40
The octane number of Compressed Natural Gas
Answer
D. 120
41
In a torque converter, the oil leaving the turbine is changed into a helping direction
by curved
Answer
C. Stator vanes
42
Freewheeling mechanism contains
Answer
C. An over running clutch
43
On a diaphragm spring clutch, pressing down on the clutch pedal moves throw out
bearing in against the
Answer
B. Release levers
44
The main advantages of a fluid coupling is
Answer
Question Cancelled
45
The purpose of the guide ring in the fluid coupling is to reduce oil
Answer
C. Turbulence
46
Chassis is a strong steel frame which supports the body and engine
Answer
Question Cancelled
47
The three important types of chassis are, ladder chassis, backbone chassis, and
monocoque chassis
Answer
Question Cancelled
48
The basic automobile structure consists of the suspension system, wheels, frame and
Answer
B. Axles
49
The fuel called CNG used in automobiles stands for
Answer
D. Compressed Natural Gas
50
The following defects may be found in the chassis body
Answer
D. All of these
51
If the tractor was equipped with a swinging drawbar it could be set the center or
offset from center to allow the tractor
Answer
A. To run outside the path of the implement
52
The flat drop carries the seed on a flat in the cell of the Plate, number of seed is
allowed in the cell at each time
Answer
A. 1
53
Cranes, like all machines, obey the principle of
Answer
A. conservation of energy
54
The cells round the edge of the plate are large enough to admit several seeds at a time
Answer
B. Hill drop
55
That power from one shaft can be transmitted to different metering units through
Answer
Question Cancelled
56
Hand seed drill furrow arrangement is used to
Answer
B. To open soil
57
In seed drill the delivery rate of the seed is influenced by the forward speed, in
such cases speed has to be limited to
Answer
B. 7 km./h
58
While excavating, the trench walls are excavated in
Answer
Question Cancelled
59
The graders can perform all the operations except
Answer
D. Heavy excavation
60
Conventional cranes are used for drop weights of up to and drop height below
Answer
A. 20 tons and below 100 ft
61
The sound of a periodic clunck indicates
Answer
Question Cancelled
62
The maximum pressure that a power steering pump can produce is
Answer
Question Cancelled
63
The purpose of a front stabilizer bar is
Answer
C. Stiffens the suspension to control body roll
64
lubrication of shackle pins are done with
Answer
C. SAE 140
65
If thrust angle is not zero
Answer
A. The vehicle will dog track
66
In a master cylinder when the brakes are not applied, fluid flows through ________
ports to fill the high pressure chamber ahead of each piston
Answer
B. Vent port
67
longitudinal torsion occurs on the frame due to
Answer
D. Vertical loads when vehicle come across a hump or hallow
68
master cylinder have flexible diaphragms that covers the reservoirs to
Answer
Question Cancelled
69
What is the approximate percentage of braking force from the secondary shoe, in
a servo type brake ?
Answer
Question Cancelled
70
In a disc brake the brake pad linings wear the caliper piston moves
Answer
B. Outward
71
In respect of routes where fare stages the distance between two stages will be taken
generally as for Ordinary/mofussil/City/City Fast Passenger/Town Services is
Answer
B. 2.5 kilometers
72
In respect of services operated in connection with the festival occasions the fare
rate is increased in fixed rate is
Answer
C. 30%
73
As per the Kerala State motor Vehicle Act a driver shall not cause or allow any person,
animal or thing to be placed or to be in the space reserved for the driver’s seat in
accordance with Rule
Answer
B. 273(2)
74
In the trolleybus in order to avoid damage to the power transmission gear,
________ braking is used.
Answer
D. Stabilized rheostatic braking
75
In lRT, use of low axle load of ___________ compared to 17 tonnes of metro rail
saves operating cost.
Answer
B. 11 tonnes
76
For establishing the best bus routes and services for a urban area entails an
examination of
Answer
D. All the above
77
As per Road Regulation of 1989, a duty of the driver to slow down vehicle when
approaching a pedestrian or zebra crossing comes under
Answer
C. Rule 8
78
As per the accessibility guidelines for bus terminals and bus stops, Wheelchair
bay should be minimum of __________ in the bus stop design.
Answer
C. 900 mm
79
The second year 20 year plan is known as a
Answer
A. Bombay
80
The intermediate sight distance is provided to give limited overtaking opportunities
to fast vehicle
Answer
B. 2 times of stopping distance
81
When drag or spin occurs in a clutch assembly, the following are the causes
involved
i) Broken driven-plate or friction lining.
ii) misalignment of the engine to the gear box, caused by incorrect assembly of
the bell-housing to the engine.
iii) Oil or greases on the driven-plate faces.
Answer
D. All the above (i, ii & iii)
82
The formula used to determine the value of pressure expected from the cylinder
during the compression stroke.
Answer
B. Compression Pressure = atmospheric pressure times the compression ratio
plus atmospheric pressure plus 69 kPa
83
To calculate the bobweight of a crankshaft while balancing, the formula used is
equal to
Answer
A. 100% of the rotating weight + 50% of the reciprocating weight
84
Possible causes of abnormal or excessive engine cylinder liner wear are
i) due to friction and corrosion
ii) Abrasion
iii) Scuffing or Adhesion
iv) Excessive heat
Answer
D. All the above (i, ii, iii & iv)
85
The oscillation of the front wheels at high speed is called
Answer
B. High-speed shimmy
86
Multiple radially worn areas around the fire is due to
Answer
Question Cancelled
87
The presence of air in the hydraulic braking system because the brakes are not
able to function properly is called as
Answer
D. Spongy brake
88
A valve that doesn’t close fully will
Answer
C. allow combustion gases to escape, which reduces engine performance
89
The commonly accepted rule for bearing clearance that most crankshaft
manufacturers prefer for street and performance engines is
Answer
B. 0.0010 inch for every 1-inch of journal diameter
90
Technician A says a vehicle with torsion bar suspension can be adjusted to repair
ride height. Technician B says to take measurements before and after adjustments
are performed. Who is correct ?
Answer
C. Both A and B
91
In port injection
i) Fuel injectors inject an optimum quantity of fuel into the combustion chamber.
ii) Better atomization and swirl of fuel in the combustion chamber.
iii) There is a negligible possibility of fuel condensation outside the intake manifold .
Answer
A. Only (i & ii)
92
The inputs used in electrically controlled diesel fuel injection system are
Answer
D. combination of engine speed, accelerator pedal position and crankshaft position
93
In the CRdI, the injectors are opened and closed by
Answer
D. a solenoid valve
94
The Supreme Court has banned the sale and registration of motor vehicles, conforming
to the emission standard Bharat Stage IV in the entire country from 1st April
Answer
C. 2020
95
What are thermal reactors ?
Answer
C. Insulated and greatly enlarged exhaust manifold
96
EGR is designed to reduce
Answer
B. Oxides of Nitrogen
97
Centrifugal governor in an engine order to
Answer
C. to control minimum and maximum motion of the engine
98
____________ refrigerant is chlorine free and less destructive to the ozone layer
with a small impact on global warming.
Answer
A. R-125
99
ABS is an automated system that uses the principles of
i) threshold braking
ii) cadence braking
iii) braking distance
Answer
A. Only (i & ii)
100
A transparent display to display customizable information is called as
Answer
B. Head-up Guidance System
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