| 1 |
Two equal but unlike parallel forces having different lines of action produce: |
- A. a Torque
- B. a couple
- C. Equilibrium
- D. Netural equilibrium
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| 2 |
Which is not an example of torque? |
- A. Opening a nut
- B. Door opening
- C. Picking up a toy
- D. All of them
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| 3 |
The parallel forces which have same direction are called. |
- A. Resutant force
- B. Like parallel force
- C. Unlike force
- D. Null force
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| 4 |
If the applied force is 'F' and its moment arm is 'r' then torque is defined as |
- A. τ = rF
- B. τ = r2F
- C. τ = r + F
- D. τ = 2rF
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| 5 |
A body is in neutral equilibrium when its centre of gravity: |
- A. Is at its highest position
- B. Is at the lowest position
- C. Keep its height if displaced
- D. Is situated at its bottom
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| 6 |
A couple is formed by |
- A. Two forces perpendicular to each other
- B. Two like parallel forces
- C. Two equal and opposite forces in the same line
- D. Two equal and opposite forces not in the same line
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| 7 |
After tilting if body come back to its original position then the body is in: |
- A. Stable equilibrium
- B. unstable equilibrium
- C. Neutral equilibrium
- D. Equilibrium
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| 8 |
_____________ easily undo bolt? |
- A. Long spanner
- B. Medium
- C. Short spanner
- D. Every spanner
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| 9 |
Two forces of 2N and 4N are acting in opposite directions, Their resultant force will be |
- A. 2 N
- B. 4 N
- C. 6 N
- D. 8 N
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| 10 |
When center of gravity is at the highest position body will be in: |
- A. Neutral equilibrium
- B. Stable equilibrium
- C. Unstable equilibrium
- D. None of these
|