1. . Belts transmit
(A) Energy
(B) Power
(C) Force
(D) Motion
2. . Flexible drive elements include
(A) Gears
(B) Belts, chains, ropes
(C) Shafts
(D) Couplings
3. . Rigid or non-flexible drives include
(A) Chains
(B) Belts
(C) Gears
(D) Ropes
4. . The main disadvantage of flexible drives is
(A) High cost
(B) High noise
(C) Low and variable velocity ratio
(D) Complicated design
5. . Flat belts are mostly used when pulleys are not more than
(A) 5 meters apart
(B) 8 meters apart
(C) 10 meters apart
(D) 12 meters apart
6. . V-belts transmit power by
(A) Bottom surface of belt
(B) Wedging action on pulley sides
(C) Friction on top surface
(D) Using adhesives
7. . Rope drives are used when pulleys are
(A) Very close (<2m)
(B) Medium distance (5–8m)
(C) Far apart (>10m)
(D) Any distance
8. . Fiber ropes are suitable for pulleys up to
(A) 10 m
(B) 60 m
(C) 100 m
(D) 150 m
9. . Wire ropes are used when pulleys are up to
(A) 60 m
(B) 100 m
(C) 150 m
(D) 200 m
10. . Idler pulleys are used to
(A) Reduce belt tension
(B) Increase angle of contact and velocity ratio
(C) Reduce power transmission
(D) Join two belts
11. . The tight side of a belt carries
(A) Less tension
(B) More tension
(C) Same tension as slack side
(D) Variable tension
12. . Cross belt drive is used when shafts
(A) Are parallel and rotate in same direction
(B) Are parallel and rotate in opposite direction
(C) Are at right angles
(D) Are misaligned
13. . The silent chain is designed to
(A) Increase noise
(B) Eliminate effects of stretching and run quietly
(C) Reduce power transmission
(D) Replace rope drives only
14. . The maximum power transmitted by a flat belt depends on
(A) Belt width only
(B) Belt tension, velocity, arc of contact, and condition of use
(C) Pulley diameter only
(D) Type of material only
15. . The classes of chains include
(A) Conveyor, silent, roller
(B) Hoisting & hauling, conveyor, power transmitting
(C) Roller, silent, bush
(D) Single, double, triple