 A. 0.5 cm
 B. 1.0 cm
 C. 1.5 cm
 D. 2.5 cm
Strength of Materials

From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the center of circular plate_____.

The weight of a body is due to_____.
 A. centripetal force of earth
 B. gravitational pull exerted by the earth
 C. force of attraction experienced by particles
 D. gravitational force of attraction towards the centre of the earth.

A cable with a uniformly distributed load per horizontal metre run will take the following shape_____.
 A. Straight line
 B. Parabola
 C. Hyperbola
 D. Elliptical

A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semicricular disc and horizontal surface is i. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will_____.
 A. remain horizontal
 B. slant up towards direction of pull
 C. slant down towards direction of pull
 D. unpredictable

The product of either force of couple with the arm of the couple is called_____.
 A. resultant couple
 B. moment of the forces
 C. resulting couple
 D. moment of the couple

Forces are called concurrent when their lines of action meet in_____.
 A. one point
 B. two points
 C. plane
 D. perpendicular planes

A pair of smith’s tongs is an example of the lever of_____.
 A. zeioth order
 B. first order
 C. second order
 D. third order

A. density of metal can’t be determined B. metal is twice as dense as water C. metal will float in water D. metal is twice as dense as unknown fluid
 A. kg/cm
 B. atmosphere
 C. mm of wcl
 D. newton.

A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in an unknown fluid. Then which is correct statement about density of metal_____.
 A. density of metal can’t be determined
 B. metal is twice as dense as water
 C. metal will float in water
 D. metal is twice as dense as unknown fluid

Which of the following is not the unit of power ?
 A. kW (kilowatt)
 B. hp (horse power)
 C. kg m/sec
 D. kcal/kg sec.
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