Machine Design (2171909) MCQs

MCQs of Rolling Contact Bearings

Showing 31 to 40 out of 64 Questions
1 2 3 4 5 6
31.

The needle rollers are a maximum of _______ millimeter in diameter.

(a)

4
(b)

5
(c)

6
(d)

7
Answer:

Option (b)

32.

Which bearing is available both with or without an inner ring?

(a)

Deep groove ball 
(b)

Cylindrical roller
(c)

Needle roller 
(d)

Spherical roller
Answer:

Option (c)

33.

The piston pin bearings in heavy-duty diesel engines are

(a)

needle roller bearings
(b)

tapered roller bearings
(c)

spherical roller bearings
(d)

cylindrical roller bearings
Answer:

Option (a)

34.

What type of bearing will you recommend for use in the conveyor belt roller?

(a)

Ball-bearing
(b)

Roller bearing
(c)

Magnetic bearing
(d)

None of the mentioned
Answer:

Option (b)

35.

Which of the following elements is not used as a roller in roller bearings?

(a)

Cylindrical
(b)

Taper
(c)

Spherical
(d)

None of the mentioned
Answer:

Option (d)

36.

Needles bearing consist of rollers of small diameter and very small length.

(a)

True
(b)

False
Answer:

Option (b)

37.

The bearings of heavy series have capacity __________ over the medium series.

(a)

10 to 20%
(b)

20 to 30%
(c)

30 to 40%
(d)

40 to 50%
Answer:

Option (b)

38.

The bearings of medium series have capacity __________ over the light series.

(a)

10 to 20%
(b)

20 to 30%
(c)

30 to 40%
(d)

40 to 50%
Answer:

Option (c)

39.

A rolling contact bearing is specified as X307. Calculate the bearing diameter.

(a)

35 mm
(b)

28 mm
(c)

21 mm
(d)

7 mm
Answer:

Option (a)

40.

A rolling contact bearing is specified as X307. Determine the series.

(a)

Extra light series
(b)

Light series
(c)

Medium series
(d)

Heavy series
Answer:

Option (c)

Showing 31 to 40 out of 64 Questions
1 2 3 4 5 6