Machine Design
If shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to

1.25 × diameter of bolt
1.5 × diameter of bolt
Diameter of bolt
0.75 × diameter of bolt

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
Tapered roller bearings can take

Radial load only
Both radial and axial loads and the ratio of these being less than unity
Axial load only
Both radial and axial loads and the ratio of these being greater than unity

ANSWER DOWNLOAD EXAMIANS APP