Machine Design
Rivets are generally specified by

Thickness of plates to be riveted
Nominal diameter
Diameter of head
Length of rivet

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
In order to determine the stresses in a thin cylinder due to an internal pressure, it is assumed that

The effect of the restraining action of the heads at the end of the pressure vessel is neglected
The tensile stresses are uniformly distributed over the section of the walls
The effect of curvature of the cylinder wall is neglected
All of these

ANSWER DOWNLOAD EXAMIANS APP