Civil Engineering - Applied Mechanics

6. 

A projectile is thrown at an angle a to the horizontal with α velocity v. It will have the maximum centripetal acceleration

A. at the start
B. at the top of the trajectory
C. as it strikes the ground
D. else where.

Answer: Option A

Explanation:

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7. 

The c.g. of the shaded area of the below figure whose curve OM is a parabola from y-axis, is

A.
B.
C.
D.
E.

Answer: Option B

Explanation:

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8. 

The unit of Moment of Inertia of a body, is

A. m
B. m2
C. m3
D. m4
E. none of these.

Answer: Option D

Explanation:

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9. 

If a body moves in such a way that its velocity increases by equal amount in equal intervals of time, it is said to be moving with

A. a uniform retardation
B. a uniform acceleration
C. a variable acceleration
D. a variable retardation
E. none of these.

Answer: Option C

Explanation:

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10. 

If the gravitational accelerational at any place is doubled, the weight of a body, will

A. be reduced to half
B. be doubled
C. not be affected
D. none of these.

Answer: Option B

Explanation:

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