Machine Design
A woodruff key is

All of these
A tapered key with head at one end
Capable of tilting in a recess milled out in the shaft
Fitted in pairs at right angles

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
The effective stress in wire ropes during normal working is equal to the stress due to

Acceleration/retardation of masses plus stress due to bending
Axial load plus stress due to bending
Bending plus stress due to acceleration/retardation
Axial load plus stress due to acceleration/retardation

ANSWER DOWNLOAD EXAMIANS APP