POWER TRANSMISSION MCQ 1
1) When the applied loading is always in one direction, the type of thread preferred is
Acme
Square
BSW
Buttress
2) Which type of thread is considered strong and frequently used for power transmission?
Acme
Buttress
BSF
BSW
3) If, in a belt drive, the sense of rotation of both the pulleys is the same, the drive used is
open belt drive
cross belt drive
open or cross belt drive
neither open not cross belt drive
4) If it is required to bring the driven shaft to speed in a gradual manner, which type of device will be used?
Belt drive
Gear
Clutch
Coupling
5) Which one of the following statements is NOT true about cross belt drive?
Used for transmission of speed at high power
Belt angle on both the pulleys is equal
Pulleys rotate in opposite directions
Belts wear very fast
6) In belt drive, pulleys are made a slightly convex surface (rather than flat). This convex surface is called
crown
spot
hump
peak
7) Which one of the following statements is NOT true about timing belts?
There is no slippage.
They are toothed belts.
The driving and driven shafts remain synchronized.
They make too much noise.
8) Which one of the following belt materials can withstand acidic and wet conditions?
Balata
Rubber
Leather
Cotton
9) In a belt drive, the outer surface of the pulley is made in convex form. Which one of the following statements is NOT true about this convex surface?
It keeps the belt in the centre when it is in movement.
It prevents the belt from slipping from the edge of the pulley.
It causes excessive belt wear.
It is called crown.
10) Fast and loose pulley drive configuration is used when
it is required to start or stop driven shaft without disturbing driving shaft
velocity ratio is too large
low noise is required
distance between driving and drive shaft is too large
10) Fast and loose pulley drive configuration is used when
it is required to start or stop driven shaft without disturbing driving shaft
velocity ratio is too large
low noise is required
distance between driving and drive shaft is too large
11) An example of use of stepped pulley drive is in
milling machine
planer
shaper
lathe
12) Which one of the following statements is NOT true about coupling?
It drives driving and driven shafts at same speed.
It connects two in-line shafts.
It can engage and disengage driving and driven shafts as a normal operation.
It can be rigid or flexible.
13) It is a long cylindrical coupling bored and keyed to fit over both shafts. it is called
spider coupling
fluid coupling
rigid coupling
muff coupling
14) Which one of the following types of couplings gives a soft start?
Rigid coupling
Spider coupling
Fluid coupling
Muff coupling
15) A coupling which has a yoke on each shaft is called
muff coupling
spider coupling
universal coupling
rigid coupling
16) Which type of coupling is used in the propeller shaft of a vehicle?
Spider coupling
Rigid coupling
Fluid coupling
Universal coupling
17) Normally a gear meshes with another gear. But a gear can also mesh with a non-rotating toothed part, called
rack
sheave
yoke
worm
18) When the situation is such that power has to be transmitted at an angle, the gears used are
herringbone gears
helical gears
bevel gears
spur gears
19) Herringbone gears resemble two ………… gears that have been placed side by side.
bevel
helical
face
spur
20)The sun and planet gearing used in differentials is of the type
rack and pinion
worm and worm wheel
hypoid
epicyclic
