Automobile Engineering Quiz | Automobile Engineering Objective Type Questions & Answers

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Questions
21 During a collision the front parts of an automobile are subjected to a deceleration of about ……… at about 50 mphr
A 100g
B 1000g
C 1g
D 10g

Answer: 1g
22 Which motor cycle has maximum power rating
A Rajdoot
B Jawa
C Yamaha
D Bullet

Answer: Yamaha
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23 Most of the mopeds in India have capacity of
A 10 cc
B 250 cc
C 50 cc
D 175 cc

Answer: 50 cc
24 The range of gear ratios in a vehicle depends on
A The ratio of engine h.p to laden weight of vehicle
B Max. engine torque / wt. of vehicle
C Only on the laden weight of vehicle
D The power to weight ratio of engine

Answer: Max. engine torque / wt. of vehicle
25 Comparing a Four wheel drive with Two wheel drive system either at front or rear and assuming an equal division of weight between the two axes
A From the point of view of traction front wheel drive is better than rear wheel drive
B Front wheel and rear wheel drive are equal
C Four wheel drive can always give more traction than either rear or front wheel drive
D Four wheel drive can utilize all the weight of the vehicle only at a particular road friction

Answer: Four wheel drive can always give more traction than either rear or front wheel drive
26 The duration of the fuel injection at full load in a diesel engine running at 1800 rpm when it has 200 of crank travel is
A 1/600 sec
B 1/640 sec
C 1/540 sec
D 1/530 sec

Answer: 1/540 sec
27 In ‘V’ type engines the included angle between two banks of cylinders is
A 450
B 600
C 1300
D 900

Answer: 900
28 If compression ratio is increased
A Air standard efficiency will be increased
B Air standard efficiency will be decreased
C Thermal efficiency will be increased
D Volumetric efficiency will be increased

Answer: Air standard efficiency will be increased
29 The turbulence in diesel engines ensures to
A Increase the volumetric efficiency
B Increase the compression ratio
C Bring the fuel quickly in contact with the air
D Increase the specific fuel consumption

Answer: Bring the fuel quickly in contact with the air
30 The metering rod is designed to vary the size of which jets
A High speed jets
B Accelerating jets
C Float level jets
D Idle jets

Answer: High speed jets
31 As compression ratio in an engine goes up, the octane requirements of the fuel
A Goes down
B Goes up
C Stay about the same
D None

Answer: Goes up
32 The conventional mechanical type fuel pump develops …………. pressure
A 0.15 Kg/cm2
B 1.0 Kg/cm2
C 0.5 Kg/cm2
D 0.3 Kg/cm2

Answer: 1.0 Kg/cm2
33 Which type of valve arrangements require the use of rocket arms?
A H – head
B T – head
C I – head
D L – head

Answer: I – head
34 The combustion process in a diesel engine is
A Constant pressure process
B Isothermal process
C Constant volume process
D Adiabatic process

Answer: Constant pressure process
35 The compression pressure in diesel engine is around
A 40 Kg/cm2
B 10 Kg/cm2
C 30 Kg/cm2
D none of the above

Answer: 30 Kg/cm2
36 The temperature of the compressed air should be ………….. of the fuel
A Below the flash point
B Above the flash point
C Above the fire point
D Between the fire and flash point

Answer: Above the fire point
37 The compression ratio in a diesel engine is as high as
A 25:1
B 20:1
C 10:1
D 5:1

Answer: 20:1
38 Immediately after ignition, combustion chamber temperatures may reach a value of
A 15000C
B 75000C
C 55000C
D 25000C

Answer: 15000C
39 In general the design of the current regulator is such that its main actuating winding carries full
A Generator voltage
B Generator output
C Field current
D Battery voltage

Answer: Generator output
40 Vibration damper ……….
A controls the torsional vibrations
B drives the pulley
C dampens the engine speed
D reduces the speed of the flywheel

Answer: controls the torsional vibrations
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