Machine Design
A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be

2.5
3.5
3.0
2.8

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
A hollow saddle key is

Provided in pairs at right angles and each key is to withstand torsion in one direction only
A taper key which fits in a key way of the hub and is flat on the shaft
A taper key which fits in a key way of the hub and the bottom of the key is shaped to fit the curved surface of the shaft
A taper key which fits half in the key way of hub and half in the key way of shaft

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Machine Design