#### Strenght of Materials

421

The object of caulking in a riveted joint is to make the joint

A. free from corrosion
B. stronger in tension
C. free from stresses
D. leak-proof

422

Euler's formula holds good only for

A. short columns
B. long columns
C. both short and long columns
D. weak columns

423

The neutral axis of the cross-section a beam is that axis at which the bending stress is

A. zero
B. minimum
C. maximum
D. infinity

424

A vertical column has two moments of inertia (i.e. Ixx and Iyy ). The column will tend to buckle in the direction of the