Stability and Equilibrium of Bodies NDA Questions

NDA Physics

Stability and Equilibrium of Bodies MCQ Questions


1.
A body is in static equilibrium if:
A.
The net force acting on it is zero
B.
The net torque acting on it is zero
C.
Both net force and net torque are zero
D.
The sum of the moments acting on it is non-zero
😑 View Answer Rough Work Error
ANSWER :
C. Both net force and net torque are zero
2.
A uniform rod is in equilibrium when:
A.
The forces are equal on both ends
B.
The sum of the forces and torques is zero
C.
The net force is directed upward
D.
There is no external force acting on it
😑 View Answer Rough Work Error
ANSWER :
B. The sum of the forces and torques is zero
3.
A body has stable equilibrium when:
A.
It returns to its original position after a slight displacement
B.
It moves away from its original position after a slight displacement
C.
It remains in its new position after displacement
D.
It vibrates around its original position
😑 View Answer Rough Work Error
ANSWER :
A. It returns to its original position after a slight displacement
4.
A body has unstable equilibrium when:
A.
It returns to its original position after displacement
B.
It moves away from its original position after a slight displacement
C.
It remains in its new position after displacement
D.
It oscillates around its original position
😑 View Answer Rough Work Error
ANSWER :
B. It moves away from its original position after a slight displacement
5.
The center of gravity of a body is the point at which:
A.
The entire mass can be considered to be concentrated
B.
The entire weight can be considered to act
C.
The body rotates about this point
D.
All of the above
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ANSWER :
B. The entire weight can be considered to act
6.
An object is in equilibrium when:
A.
The net force acting on it is zero
B.
The net torque acting on it is zero
C.
Both the net force and the net torque acting on it are zero
D.
None of the above
😑 View Answer Rough Work Error
ANSWER :
C. Both the net force and the net torque acting on it are zero