1) Which of the following is the application of the chain drive?
Train
Bus
Car
Bicycle
2) Which of the following is the application of belt drive?
Bicycle
Flour mill
Bus
All of these
3) Which of the following type of drives transmit power by friction?
Chain drive
Spur gear drive
Worm gear drive
Belt drive
4) Which of the following is used, when the axes of two shafts are parallel?
Spur or helical gear
Worm gear
Bevel gear
Crossed helical gear
5) The thickness of the gear tooth is measured
along the root cycle
along the addendum circle
along the pitch circle
along the base cycle
6) Reducing the pressure angle on gears result in
high efficiency
weaker teeth
stronger teeth
high-velocity ratio
7) Which of the following is the application of Rope drive?
Motorcycle
Crane
Bicycle
Car
8) Belt get the slip in open belt drive due to the insufficient arc of contact of the pulley. How do you reduce this type of slip?
Put jockey pulley on tension side near to bigger pulley
Put jockey pulley on the slack side near to bigger pulley
Put jockey pulley on the slack side near the smaller pulley
Put jockey pulley on tension side near to smaller pulley
09) Coupling is used to connect the shaft when the shafts are
to be disconnected often and to compensate a slight misalignment between two shafts
to be joined permanently
in parallel
to be connected and disconnected often
10) In gear drive, rotary motion is changed into linear motion and vice-versa is possible by using
rack and pinion drive
miter gear drive
worm and worm wheel
hypoid gear drive
11) Clutches are used to engage and disengage the driving part with the power source. Which one is the positive drive clutch?
Plate clutch
Dog clutch
Cone clutch
Centrifugal clutch
12) If the V-belt drive is less than the minimum recommended deflection force, the belt should be tightened. If it is not tightened, what happens on the belt?
Increases tension of the belt
Increases creep of a belt
Increases grip of the belt
Increases slackness of a belt
13) Which one of the gear drive shown is possible to drive motion from driver to driven and not possible from driven to the driver?
worm and worm wheel drive
gear and pinion
bevel gear
rack and pinion
14) Which flat belt drive system has two pulleys mounted on driven shaft and one pulley on driving shaft?
Multiple belt drive
Cone pulley drive
Fast and loose pulley drive
None of the above
15) Due to continuous rubbing of the belt on the surface pulley. Belt gets dried up due to friction and heat generated. This causes the belt to slip. Which of the following material applied on the inner face of a belt for reducing belt slip?
Zinc or chalk powder
Emery or corundum
Tallow or powdered resin
Nylon or Teflon
16) Advantage(s) of friction clutch is/are
smooth engagement
instant and easy engagement
simple and easy regulating
All of the above
17) The main shaft is running at 250 rpm and machine spindle is to be driven directly from the main shaft to turn at 25 rpm. If the diameter of pulley fitted on machine spindle is 20 cm, what would be the diameter of pulley fitted on the main shaft?
20 mm
50 mm
10 mm
100 mm
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