Machine Design
A feather key is generally

Tight in both shaft and hub
Loose in shaft and tight in hub
Tight in shaft and loose in hub
Loose in both shaft and hub

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
Spring stiffness is

Its capability of storing energy
Load required to produce unit deflection
Ratio of coil diameter to wire diameter
Its ability to absorb shocks

ANSWER DOWNLOAD EXAMIANS APP