Mechanical Engineering MCQs

2075 MCQs  (Page 71 of 208)

Modulus of rigidity is defined as the ratio of_________________?
A. Longitudinal stress and longitudinal strain
B. Volumetric stress and volumetric strain
C. Lateral stress and lateral strain
D. Shear stress and shear strain
Hooke’s law holds good up to____________________?
A. Yield point
B. Limit of proportionality
C. Breaking point
D. Elastic limit
Which of the following is a lower pair_______________?
A. Ball and socket i
B. Piston and cylinder
C. Cam and follower
D. A. and b. above
The example of lower pair is_______________?
A. Shaft revolving in a bearing
B. Straight line motion mechanisms
C. Automobile steering gear
D. All of the above
A universal joint is an example of_____________________?
A. Higher pair
B. Lower pair
C. Rolling pair
D. Sliding pair
Pitch point on a cam is_________________?
A. Any point on pitch curve
B. The point on cam pitch curve having the maximum pressure angle
C. Any point on pitch circle
D. The point on cam pitch curve having the minimum pressure angle
The example of spherical pair is_____________________?
A. Bolt and nut
B. Lead screw of a lathe
C. Ball and socket joint
D. Ball bearing and roller bearing