**A. one-fourth of the total height above base**

B. one-third of the total height above base

C. one-half of the total height above base

D. three-eighth of the total height above the base

E. none of the above

# Engineering Mechanics

## A single force and a couple acting in the same plane upon a rigid body_____________________?

A. balance each other

**B. cannot balance each other**

C. produce moment of a couple

D. are equivalent

E. none of the above

## The center of percussion of the homogeneous rod of length L suspended at the top will be___________________?

A. L/2

B. L/3

C. 3L/4

**D. 2L/3**

E. 3L/8

## The possible loading in various members of framed structures are_________________?

**A. compression or tension**

B. buckling or shear

C. shear or tension

D. all of the above

E. bending

## The unit of force in S.I. units is________________?

A. kilogram

**B. newton**

C. watt

D. dyne

E. joule

## The unit of work or energy in S.I. units is_______________?

A. newton

B. pascal

C. kilogram meter

D. watt

**E. joule**

## Pick up the incorrect statement from the following ?

A. The C.G. of a circle is at its center

B. The C.G. of a triangle is at the intersection of its medians

C. The C.G. of a rectangle is at the inter-section of its diagonals

**D. The C.G. of a semicircle is at a distance of r/2 from the center**

E. The C-G. of an ellipse is at its center

## Which one of the following statements is not correct_________________?

A. the tangent of the angle of friction is equal to coefficient of friction

B. the angle of repose is equal to angle of friction

C. the tangent of the angle of repose is equal to coefficient of friction

**D. the sine of the angle of repose is equal to coefficient to friction**

E. none of the above

## The weight of a body is due to ___________________?

A. centripetal force of earth

B. gravitational pull exerted by the earth

C. forces experienced by body in atmosphere

D. force of attraction experienced by particles

**E. gravitational force of attraction towards the center of the earth**

## Which of the following do not have identical dimensions ?

A. Momentum and impulse

B. Torque and energy

C. Torque and work

D. Kinetic energy and potential energy

**E. Moment of a force and angular momentum**