Basic Mechanical Engineering (3110006) MCQs

MCQs of Transmission of Motion and Power

Showing 21 to 20 out of 30 Questions
1 2 3
21.
Gears are used to do the following for rotating shafts
(a) increase speed
(b) decrease speed
(c) change direction of rotation
(d) all of the above
Answer:

Option (d)

22.
The size of the gear is specified by
(a) number of teeth
(b) pitch circle diameter
(c) pressure angle
(d) none of the above
Answer:

Option (b)

23.
Which of the following type of gear has teeth parallel to the axis of rotation?
(a) Spur gear
(b) Helical gear
(c) Spiral gear
(d) All of the above
Answer:

Option (a)

24.
Which of the following type of gear have inclined teeth?
(a) Spur gear
(b) Helical gear
(c) Spiral gear
(d) All of the above
Answer:

Option (b)

25.
The gears are used to connect two parallel shafts except
(a) spur gears
(b) helical gears
(c) double helical gears
(d) bevel gears
Answer:

Option (d)

26.
Why are the helical gears used commonly in transmission over spur gears?
(a) Low cost and high strength
(b) Low noise level and high strength
(c) Low noise level and economy
(d) Low noise level and low cost
Answer:

Option (b)

27.
When a rotary motion is to be converted into linear motion following gear arrangement is used
(a) spur gears
(b) spiral gears
(c) rack and pinion
(d) helical gears
Answer:

Option (c)

28.
The gears used to transmit power between two shafts having their axis at right angles and intersecting are
(a) spur gears
(b) bevel gears
(c) helical gears
(d) worm and worm wheel
Answer:

Option (b)

29.
_______ gears are used when large speed reductions and power increases are necessary.
(a) Spur
(b) Worm
(c) Rack and pinion
(d) Bevel
Answer:

Option (b)

30.
The gears used to connect two non-parallel and non-intersecting shafts are
(a) spur gears
(b) bevel gears
(c) spiral gears
(d) rack and pinion
Answer:

Option (c)

Showing 21 to 20 out of 30 Questions
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