Machine Design
The cam follower extensively used in aircraft engines is

Flat faced follower
Spherical faced follower
Roller follower
Knife edge follower

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
Which of the following statement is correct regarding power screws?

If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50%
The efficiency of Acme (trapezoidal) thread is less than that of a square thread
The efficiency of a self locking screw can not be more than 50%
Both (A) and (B)

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
According to I.B.R., when the thickness of the boiler shell (t) is less than 8 mm, then the diameter of the rivet hole (d) is obtained by

Equating tearing resistance of the plate to the crushing resistance of the rivets
Equating shearing resistance to the crushing resistance of the rivets
Equating tearing resistance of the plate to the shearing resistance of the rivets
None of these

ANSWER DOWNLOAD EXAMIANS APP