Gearbox MCQs | Gearbox Multiple Choice Questions and Answers

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Questions
1 Which of the following is the need of the gearbox?
A To vary the speed of the vehicle
B To vary the torque of the vehicle
C To vary the power of the vehicle
D To vary the acceleration of the vehicle

Answer: To vary the torque of the vehicle
2 In which of the gearbox all gears are always in contact?
A Constant-mesh gearbox
B Sliding mesh gearbox
C Synchromesh gearbox
D Epicyclical gearbox

Answer: Constant-mesh gearbox
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23 Which of the following is not part of automatic transmission?
A Epicyclic gearbox
B Torque convertor
C Multi-plate clutch
D Sliding mesh gearbox

Answer: Sliding mesh gearbox
4 In which of the configuration of epicyclic gearbox output will be forward and fast output speed?
A Sun gear stationary, ring gear driven, planet carrier driving
B Sun gear driving, ring gear driven, planet carrier stationary
C Sun gear driven, ring gear stationary, planet carrier driving
D None of the above

Answer: Sun gear stationary, ring gear driven, planet carrier driving
5 Which types of gears are used in constant mesh gearbox?
A Spur gear
B Helical gear
C Bevel gear
D All of the above

Answer: Helical gear
6 Why are the helical gears used commonly in transmission over spur gears?
A Low cost and high strength
B Low noise level and high strength
C Low noise level and economy
D Low noise level and low cost

Answer: Low noise level and high strength
7 The free wheeling mechanism contains
A A planetary gear
B A transmission
C An over running clutch
D None Of The Above

Answer: An over running clutch
8 There are two separate movements of the gear shift lever for changing the gears.The first movement selects
A The shaft to be moved
B The shaft pedal to be moved
C Shifter fork which operates gear assembly to be moved
D None of these

Answer: Shifter fork which operates gear assembly to be moved
9 In the transmission, the reverse idler gear always mesh with
A Counter shaft drive gear
B Counter shaft low gear
C Main shaft reverse gear
D Counter shaft reverse gear

Answer: Counter shaft reverse gear
10 In the coil spring type of clutch when the pressure plate and cover are separated, the spring pressure must be held by
A Hand
B An arbor press
C A lever
D A heavy weight

Answer: An arbor press
11 As a general rule in facings on the friction disc are worn down to the rivet heads
A Rivets should be replaced
B The friction disc should be replaced
C The clutch should be replaced
D None of the Above

Answer: The friction disc should be replaced
12 The front end of the clutch shaft is supported in a pilot bearing in the
A Throw out bearing
B Friction disc
C Crankshaft
D None of the above

Answer: Crankshaft
13 When the clutch is engaged, spring pressure clamps the friction disc between the pressure plate and the
A Flywheel
B Differential
C Reaction plate
D Clutch pedal

Answer: Flywheel
14 The free travel of the medal, or pedal lash is the amount of travel the pedal has before the throw out bearing comes up against the
A Release levers
B Flywheel
C Floor board
D All of the above

Answer: Release levers
15 Overdrive is provided in the transmission of a vehicle to
A Reach higher road speeds
B improved fuel consumption
C achieve better acceleration
D None of these

Answer: improved fuel consumption
16 The number of gear ratios in a vehicle
A Is more with high powered vehicle
B Is less with high powered cars
C Is more with diesel engine heavy vehicles
D None of the above

Answer: Is more with high powered vehicle
17 The main advantage of a fluid coupling is
A In its low torque capacity at low speeds
B Steady state torque characteristic
C Due to its ability to slip
D Due to its ability to function fluid medium

Answer: Due to its ability to slip
18 The hydrodynamic torque converter
A Gives a continuous variation of torque with increase of output speed
B Enables to get the max. h.p continuously
C Gives a speed variation without torque variation
D Maintains a high efficiency throughout the operating speed range

Answer: Gives a continuous variation of torque with increase of output speed
19 An automatic transmission works on the principle of
A Centrifugal device making up changes proportional to road speed
B Centrifugal device connected to crankshaft making up changes prop. to engine speed
C Makes changes depending on throttle position in conjunction with road speed governor
D None of the above

Answer: Makes changes depending on throttle position in conjunction with road speed governor
20 The clutch cover is bolted to the
A Friction disc
B Flywheel
C Car frame
D None Of The Above

Answer: Flywheel

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