Machine Design - Study Mode

Show All Answers

[#231] In a partial journal bearing, the angle of contact of the bearing with the journal is

(A) 120°

(B) 180°

(C) 270°

(D) 360°

Correct Answer

(A) 120°

[#232] In a full journal bearing, the angle of contact of the bearing with the journal is

(A) 120°

(B) 180°

(C) 270°

(D) 360°

Correct Answer

(D) 360°

[#233] If a bearing is designated by the number 305, it means that the bearing is of

(A) Medium series whose bore is 5 mm

(B) Medium series whose bore is 25 mm

(C) Light series whose bore is 25 mm

(D) Light series whose bore is 5 mm

Correct Answer

(B) Medium series whose bore is 25 mm

[#234] In a flat belt drive, if the slip between the driver and belt is 1%, between the belt and follower is 3% and driver and follower pulley diameters are equal, then velocity ratio of the drive will be

(A) 0.96

(B) 0.97

(C) 0.98

(D) 0.99

Correct Answer

(A) 0.96

[#235] The static tooth load should be __________ the dynamic load.

(A) Equal to

(B) Less than

(C) Greater than

(D) None of these

Correct Answer

(C) Greater than