1) Which flat belt drive system has two pulleys mounted on a driven shaft and one pulley on the driving shaft?
Multiple belt drive
Cone pulley drive
Fast and loose pulley drive
None of the above
2) Why is an idler gear used in gear trains?
A) To obtain the minimum center distance between driving and driven shaft
B) To have required direction of rotation
C) Both a. and b.
D) None of the above
3) With worm-and-gear sets very high gear ratio can be obtained. It can be as high as
10:1
50:1
100:1
500:1
4) Gears resemble spiral bevel gears except that the shaft axes do not intersect.
Epicyclic
Face
Worm
Hypoid
5) Which of the following are used to run chains?
Sprockets
Splines
Couplings
Trunions
6) In a pair of gears, the amount of clearance between mated gear teeth is called
backlash
flank
dedendum
addendum
7) In a gear, addendum + dedendum is equal to
whole depth
standard depth
working depth
nominal depth
8) The radial distance between the pitch diameter and the outside diameter of a gear is called
addendum
dedendum
addendum + dedendum
addendum — dedendum
9) Which gears are used to connect two intersecting shaft axes?
Crossed helical gear
Worm and worm wheel
Bevel gears
All of the above
10) The gear used to convert rotary motion into translating motion is
Spiral Bevel gear
Rack and pinion
Worm and wheel
Crown Gear
11) The accurate spacing of teeth in a gear blank requires the use of
dividing head
an index ptate
a differential mechanism
universal table
12) Helical gears can be cut on which type of milling machine?
Plain
Horizontal
Universal
Drum type
13) Which clutch can be engaged progressively when one or both the elements are rotating?
Single plate clutch
Cone clutch
Centrifugal clutch
Dog clutch
14) Where a large speed reduction is desired, which type of gear is used?
Worm and worm wheel
Helical bone gear
Hypoid gear
Herringbone gear
15) Which type of gear converts rotary motion to linear motion?
Rack and pinion
Worm and worm wheel
Hypoid gear
Internal gear
16) Gears having their teeth element parallel to the rotating shafts are known as .................
worm gear
spur gear
helical gear
bevel gear
17) The radial distance between the pitch circle and the root circle is called .................
dedendum
addendum
working depth of the teeth
whole depth of the teeth
18) In a ‘V’ belt the angle between the side is ............
10°
20°
30°
40°
19) What is the function of Dog clutch?
It can be engaged progressively when one or both the elements are rotating
It can only be engaged when two elements of the clutch are stationary
When the speed is reduced the clutch opens by itself
The contact force is produced by springs
20) In which clutch, the pressure plate is used?
Multiple plate clutch
Dog clutch
Overriding clutch
Centrifugal clutch
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