Discussion
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- Question
An irregular body may have more than one centre of gravity.
Options- A. Yes
- B. No
- Correct Answer
- No
- 1. The angle of inclination with the vertical is __________ if the cyclist is running at a faster speed than that when he is running at a slower speed.
Options- A. more
- B. less Discuss
- 2. When the spring of a watch is wound, it will possess
Options- A. strain energy
- B. kinetic energy
- C. heat energy
- D. electrical energy Discuss
- 3. In a screw jack, the effort required to lower the load is __________ the effort required to raise the same load.
Options- A. less than
- B. equal to
- C. more than Discuss
- 4. The total energy possessed by a system of moving bodies
Options- A. is constant at every instant
- B. varies from point to point
- C. is maximum in the start and minimum at the end
- D. is minimum in the start and maximum at the end Discuss
- 5. A couple produces
Options- A. translatory motion
- B. rotational motion
- C. combined translatory and rotational motion
- D. none of the above Discuss
- 6. The maximum height of a projectile on a horizontal plane, is
Options- A.
- B.
- C.
- D.
Discuss
- 7. In a screw jack, the effort required to lift the load is given by(where W = Load lifted, ? = Helix angle, and ? = Angle of friction.)
Options- A. P = W tan (? - ?)
- B. P = W tan (? + ?)
- C. P = W tan (? - ?)
- D. P = W cos (? + ?) Discuss
- 8. The resultant of the two forces P and Q is R. If Q is doubled, the new resultant is perpendicular to P. Then
Options- A. P = Q
- B. Q = R
- C. Q = 2R
- D. none of these Discuss
- 9. Whenever a force acts on a body and the body undergoes a displacement, then
Options- A. work is said to be done
- B. power is being transmitted
- C. body has kinetic energy of translation
- D. none of these Discuss
- 10. Moment of inertia of a circular section about its diameter (d) is
Options- A. ?d3/16
- B. ?d3/32
- C. ?d4/32
- D. ?d4/64 Discuss
Engineering Mechanics problems
Search Results
Correct Answer: more
Correct Answer: strain energy
Correct Answer: less than
Correct Answer: is constant at every instant
Correct Answer: rotational motion
Correct Answer:
Correct Answer: P = W tan (? + ?)
Correct Answer: Q = R
Correct Answer: work is said to be done
Correct Answer: ?d4/64
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