Stability and Equilibrium of Bodies NDA Questions

NDA Physics

Stability and Equilibrium of Bodies MCQ Questions


7.
In a uniform beam supported at its ends by two pillars, if a weight is placed at the center of the beam, the reaction forces at the supports will be:
A.
Equal at both ends
B.
Higher at one end than the other
C.
Zero at one end
D.
Cannot be determined without more information
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ANSWER :
A. Equal at both ends
8.
An object in neutral equilibrium will:
A.
Return to its original position after displacement
B.
Remain in its new position after displacement
C.
Move away from its original position after a slight displacement
D.
Oscillate around its original position
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ANSWER :
B. Remain in its new position after displacement
9.
The moment of force is defined as:
A.
Force multiplied by the distance from the point of rotation
B.
Force divided by the distance from the point of rotation
C.
Force multiplied by the time
D.
Force multiplied by its velocity
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ANSWER :
A. Force multiplied by the distance from the point of rotation
10.
For an object in rotational equilibrium, the sum of the moments around any point is:
A.
Zero
B.
Positive
C.
Negative
D.
Undefined
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ANSWER :
A. Zero
11.
A body will be in stable equilibrium if its potential energy:
A.
Decreases with a slight displacement
B.
Increases with a slight displacement
C.
Remains unchanged with a slight displacement
D.
Depends on the material of the body
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ANSWER :
A. Decreases with a slight displacement
12.
The condition for neutral equilibrium of a body is that:
A.
The center of gravity should be below the point of support
B.
The center of gravity should be above the point of support
C.
The center of gravity should coincide with the point of support
D.
The center of gravity should not be considered
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ANSWER :
C. The center of gravity should coincide with the point of support