Question 1 : The direction of torque is along:
1. perpendicular to the plane containing the force and displacement vector
2. The direction of force
3. The direction of displacement vector
4. Vertical line
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Question 2 : The center of gravity is the point at which the____________ may be considered to act
1. Mass
2. Torque
3. Weight
4. None of these
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Question 3 : Two forces, which are equal in mangnitude but opposite in. direction, acting along parallel lines constitute a
1. Moment
2. Couple
3. Moment arm
4. None of these
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Question 4 : The magnitude of the moment of a couple is equal to:
1. Area of the couple
2. magnitude of any of the force forming the couple
3. Magnitude of any of the forces forming the couple
4. None of these
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Question 5 : Two forces which form a couple:
1. Can not be replaced by a single equivalent force
2. Arc perpendicular to each other
3. Arc parallel to each other
4. Can be replaced by a single equivalent force
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Question 6 : The principle of parallel forces states that the resultant of a number of .parallel forces is numerically equal to:
1. All of the above
2. the algebraic sum of the force
3. None of the above
4. The sum of the forces
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Question 7 : The torque or moment due to a couple is called:
1. Moment
2. Moment of couple
3. None of these
4. Moment arm
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Question 8 : If the displacement vector r makes an angle θ with direction of force F, then the manitude of the torque is given by:
1. F r Sin θ
2. Fr Cosθ
3. Fr tanθ
4. Fr cosθ
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Question 9 : If a body in similar circumstances stay where it is placed, then the body is said to be in _______ equilibrium:
1. Stable
2. Unstable
3. Neutral
4. Dynamic
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Question 10 : The particle moving with constant velocity may be:
1. Travelling in a circle
2. In equilibrium
3. Acceleration
4. Changing in direction
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