For the following questions answer them individually
Antifriction bearings are:-
A. Sleeve bearings
B. Hydrodynamic bearings
C.Thin lubricated bearings
D. Ball and roller bearings
If the tearing efficiency of a riveted joint is 60%, then ratio of rivet hole diameter to the pitch of rivets is _____.
A riveted joint may fail due to:-
A. Shearing of the rivet
B. Shearing off the plate at an edge
C. Crushing of the rivet