The force acting along the circumference will cause stress in the walls in a direction normal to the longitudinal axis of cylinder; this stress is called___________________?

A. Longitudinal stress
B. Hoop stress
C. Yeiled stress
D. Ultimate stress

A cylindrical section having no joint is known as ____________________?

A. jointless section
B. homogeneous section
C. perfect section
D. manufactured section

The safe twisting moment for a compound shaft is equal to the _________________?

A. Maximum calculated value
B. Minimum calculated value
C. Mean value
D. Extreme value

The value of shear stress which is induced in the shaft due to the applied couple varies____________________?

A. From maximum at the center to zero at the circumference
B. From zero at the center to maximum at the circumference
C. From maximum at the center to mini-mum at the cricumference
D. From minimum at the centro to maxi-mum at the circumference

In a belt drive, the pulley diameter is doubled, the belt tension and pulley width remaining same. The changes required in key will be____________________?

A. Increase key length
B. Increase key depth
C. Increase key width
D. Double all the dimensions

If rain is falling in the opposite direction of the movement of a pedestrain, he has to hold his umbrella ________________________?

A. More inclined when moving
B. Less inclined when moving
C. More inclined when standing
D. Less inclined when standing

Dynamic friction as compared to static friction is __________________?

A. Same
B. More
C. Less
D. May be less of more depending on nature of surfaces and velocity

The algebraic sum of moments of the forces forming couple about any point in their plane is__________________?

A. Equal to the moment of the couple
B. Constant
C. Both of above are correct
D. Both of above are wrong

If three forces acting in one plane upon a rigid body, keep it in equilibrium, then they must either___________________?

A. Meet in a point
B. Be all parallel
C. At least two of them must meet
D. All the above are correct

The co-efficient of friction depends upon _________________?

A. Nature of surfaces
B. Area of contact
C. Shape of the surfaces
D. Ail of the above.