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- Question
If the gravitational acceleration at any place is doubled, then the weight of a body will be
Options- A. g/2
- B. g
- C. 2g
- D. 2g
- Correct Answer
- 2g
- 1. The centre of gravity of a right angled triangle lies at its geometrical centre.
Options- A. Correct
- B. Incorrect Discuss
- 2. The unit of power in S.I. units is
Options- A. horsepower
- B. joule
- C. watt
- D. kg-m Discuss
- 3. The loss of kinetic energy due to direct impact of two bodies __________ upon the value of coefficient of restitution.
Options- A. depends
- B. does not depend Discuss
- 4. Coplaner concurrent forces are those forces which
Options- A. meet at one point, but their lines of action do not lie on the same plane
- B. do not meet at one point and their lines of action do not lie on the same plane
- C. meet at one point and their lines of action also lie on the same plane
- D. do not meet at one point, but their lines of action lie on the same plane Discuss
- 5. If tension in the cable supporting a lift moving downwards is half the tension when it is moving upwards, the acceleration of the lift is
Options- A. g/2
- B. g/3
- C. g/4
- D. none of these Discuss
- 6. The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by
Options- A. P + Q
- B. P - Q
- C. P / Q
- D. Q / P Discuss
- 7. The time of flight (t) of a projectile on a horizontal plane is given by
Options- A.
- B.
- C.
- D.
Discuss
- 8. Two equal and opposite parallel forces whose lines of action are different form a couple.
Options- A. Correct
- B. Incorrect Discuss
- 9. When a particle moves along a circular path, its acceleration has two components, one is normal component and the other is tangential component of acceleration.
Options- A. True
- B. False Discuss
- 10. The moment of inertia of a sphere of mass m and radius r, about an axis tangential to it, is
Options- A. 2mr2/3
- B. 2mr2/5
- C. 7mr2/3
- D. 7mr2/5 Discuss
Engineering Mechanics problems
Search Results
Correct Answer: Incorrect
Correct Answer: watt
Correct Answer: depends
Correct Answer: meet at one point and their lines of action also lie on the same plane
Correct Answer: none of these
Correct Answer: P - Q
Correct Answer:
Correct Answer: Correct
Correct Answer: True
Correct Answer: 7mr2/5
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