Mechanical Engineering MCQs

2075 MCQs  (Page 109 of 208)

Belt slip may occur due to________________?
A. Heavy load
B. Loose belt
C. Driving pulley too small
D. All of the above
Antifriction bearings are__________________?
A. sleeve bearings
B. hydrodynamic bearings
C. thin lubricated bearings
D. ball and roller bearings
In oilness bearings________________?
A. The oil film pressure is generated only by the rotation of the journal
B. The oil film is maintained by supplying oil under pressure
C. Do not require external supply of lubricant
D. Grease required to be applied after some intervals
Three different weights fall from a certain height under vacuum. They will take______________?
A. Same time to reach earth
B. Times proportional to weight to reach earth
C. Times inversely proportional to weight to reach earth
D. Unpredictable