# Civil Engineering - Applied Mechanics

### Exercise :: Applied Mechanics - Section 3

1.

If two bodies of masses M1 and M2(M1 > M2) are connected by alight inextensible string passing over a smooth pulley, the tension in the string, will be given by

 A. B. C. D. Explanation:

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2.

For a simple pendulum, the period of one oscillation is

 A. 2πl/2g B. 2π2g/l C. 2πl/g D. 2πg/2l.

Explanation:

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3.

A load of 500 kg was lifted through a distance of 13 cm. by an effort of 25 kg which moved through a distance of 650 cm. The velocity ratio of the lifting machine is

 A. 50 B. 55 C. 60 D. 65 E. 70

Explanation:

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4.

The angle of friction is :

 A. The ratio of the friction and the normal reaction B. The force of friction when the body is in motion C. The angle between the normal reaction and the resultant of normal raction and limiting friction D. The force of friction at which the body is just about to move.

Explanation:

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5.

The resultant of two forces acting at right angles is 5 kgf and if they act at an angle of 60°, it is 37 kgf. The magnitudes of the forces are :

 A. 2 kgf, 3 kgf B. 3 kgf, 4 kgf C. 4 kgf, 5 kgf D. 5 kgf, 3 kgf.