porosity of the metal is largely eliminated

grain structure of the metal is refined

mechanical properties are improved due of refinement of grains

all of the above

transmits

does not transmit

zero

none of these

shank diameter

length of rivet

type of head

length of tail

along the axis of rotation

parallel to the axis of rotation

perpendicular to the axis of rotation

in any direction

joining thick cylinders

calculating stresses in thick cylinders

prestressing thick cylinders

increasing the life of thick cylinders