Machine Design (2171909) MCQs

MCQs of Gear Design

Showing 31 to 40 out of 70 Questions
1 2 3 4 5 6
31.

Which type of gears are used to convert rotary motion into translating motion?

(a)

Worm and wheel
(b)

Crown gear
(c)

Rack and pinion
(d)

Spiral Bevel gear
Answer:

Option (c)

32.

The circular pitch of a gear is given by ______.

(a)

πd/t
(b)

πd/2t
(c)

2πd/t
(d)

πd/3t
Answer:

Option (a)

33.

The face of the tooth is ________.

(a)

surface of the top of the tooth
(b)

surface of the tooth above the pitch surface
(c)

width of the tooth below the pitch surface
(d)

width of the tooth measured along the pitch circle
Answer:

Option (b)

34.

The flank of the tooth is the surface of the tooth _____________ the pitch surface.

(a)

above
(b)

below
(c)

on
(d)

above and below
Answer:

Option (b)

35.

In a rack and pinion arrangement, the rack has teeth of _______________ shape.

(a)

square
(b)

trapezoidal
(c)

oval
(d)

circular
Answer:

Option (b)

36.

In involute gears, the pressure angle is ______.

(a)

dependent on the size of teeth
(b)

dependent on the size of gears
(c)

always constant
(d)

always varying
Answer:

Option (c)

37.

In a gear having involute teeth, the normal to the involute is a tangent to the ______ circle.

(a)

pitch
(b)

base
(c)

addendum
(d)

dedendum
Answer:

Option (b)

38.

In which of the following type of profile teeth, there are chances of interference occurrence?

(a)

Cycloidal
(b)

Involute
(c)

In involute and cycloidal both
(d)

Neither in involute nor in cycloidal
Answer:

Option (b)

39.

The gear material should have ______ coefficient of friction to avoid failure due to scoring.

(a)

zero
(b)

low
(c)

medium
(d)

high
Answer:

Option (b)

40.

The coefficient of thermal expansion of gear material should be _____ to limit the distortion and warping.

(a)

high
(b)

medium
(c)

low
(d)

zero
Answer:

Option (c)

Showing 31 to 40 out of 70 Questions
1 2 3 4 5 6