Civil Engineering - Applied Mechanics

16. 

The ratio of the ranges on the inclined plane with motion upward and with motion downward for a given velocity, angle of projection will be

A.
B.
C.
D.

Answer: Option B

Explanation:

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17. 

For maximum range of a projectile, the angle of projection should be

A. 30°
B. 45°
C. 60°
D. none of these.

Answer: Option B

Explanation:

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18. 

M.I. of a thin ring (external diameter D, internal diameter d) about an axis perpendicular to the plane of the ring, is

A. (D4 + d4)
B. (D4 - d4)
C. (D4 + d4)
D. (D4 x d4).

Answer: Option B

Explanation:

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19. 

Pick up the correct statement from the following for the structure shown in below figure.

A. The horizontal reaction at A is 23t
B. The horizontal reaction at C is 23t
C. The vertical reaction at A is zero
D. The vertical reaction at C is 2 t
E. All the above.

Answer: Option E

Explanation:

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20. 

A particle moves with a velocity of 2 m/sec in a straight line with a negative acceleration of 0.1 m/sec2. Time required to traverse a distance of 1.5 m, is

A. 40 sec
B. 30 sec
C. 20 sec
D. 15 sec
E. 10 sec.

Answer: Option C

Explanation:

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