Civil Engineering - Applied Mechanics

41. 

For a body moving with simple harmonic motion, the number of cycles per second, is known as its

A. oscillation
B. amplitude
C. periodic time
D. beat
E. frequency.

Answer: Option E

Explanation:

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42. 

If the horizontal range is 2.5 times the greatest height, the angle of projection of the projectile, is

A. 57°
B. 58°
C. 59°
D. 60°.

Answer: Option B

Explanation:

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43. 

The shape of a suspended cable under its own weight, is

A. parabolic
B. circular
C. catenary
D. elliptical.

Answer: Option C

Explanation:

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44. 

Time required to stop a car moving with a velocity 20 m/sec within a distance of 40 m, is

A. 2 sec
B. 3 sec
C. 4 sec
D. 5 sec
E. 6 sec.

Answer: Option C

Explanation:

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45. 

The characteristic of a couple, is :

A. algebraic sum of forces, constituting a couple is zero
B. algebraic sum of moments of forces, constituting a couple, about any poin, is same
C. a couple can be balanced only by a couple but of opposite sense
D. a couple can be never the balanced by a single force
E. all the above.

Answer: Option E

Explanation:

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