Chain Drives MCQ Practice Test:
1. A chain drives is used for
- (A) Short
distance
- (B) Long
distance
- (C) Medium
distance
- (D) Distance
is no criterion for chain drive
2. The length of the chain in terms of pitches is approximately given by,
Where, z1, z2
= number of teeth on small and big sprocket, a = center distance, p = chain pitch
- (A) 2(a/p) + (z1 + z2)/2 + (z2
- z1)/2π]2 (p/a)
- (B) 2(a/p) + (z1 + z2)/2 - (z2
- z1)/2π]2 (p/a)
- (C) p (z1 + z2)/2
- (D) 2(a/p)
3. The variation in chain speed is due to
- (A) Chordal
action
- (B) Creep
- (C) Slip
- (D) Backlash
4. In some applications, chain drives are preferred to belt drive because of
- (A) Compact
construction
- (B) Positive
transmission
- (C) Low cost
- (D) Both (A) and
(B) above
5. The number of teeth on sprocket should be odd in order to
- (A) Reduce
polygonal effect
- (B) Reduce
wear
- (C) Reduce back
sliding
- (D) Evenly
distribute wear on all sprocket teeth
6. Silent chain is made of
- (A) Links and
blocks
- (B) Links, pins,
bushes and rollers
- (C) Links
- (D) Inverted
tooth overlapping links
7. Main types of failure in roller chain are
- (A) Breakage
of link plates
- (B) Wear of
rollers and pins
- (C) Wear of
sprocket wheel
- (D) All of the
above
8. The relationship between pitch circle diameter of the sprocket (D), pitch of the chain (p) and number of teeth on sprocket (z) is given by,
- (A) p = D sin (180/z)
- (B) p = D sin (90/z)
- (C) p = D sin (360/z)
- (D) p = D sin (120/z)
9. For a chain drive, to have variation of speed less than 1%, the minimum number of teeth on smaller sprocket should be
- (A) 15
- (B) 17
- (C) 20
- (D) 24
10. As compared to belt drive, the chain drive transmits
- (A) More
power
- (B) Less
power
- (C) Same
power
- (D) None
of the above
11. Following type of chain is used in motorcycle
- (A) Roller
- (B) Silent
- (C) Link
- (D) Ewast