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- Question
The velocity of a moving body, is
Options- A. a vector quantity
- B. a scalar quantity
- C. a constant quantity
- D. none of these.
- Correct Answer
- a vector quantity
- 1. From a solid cylinder of height 8 cm and radius 4 cm, a right circular cone is scooped out on the same base and having the same height as that of the cylinder. The c.g. of the remainder is at a height of
Options- A. 4.5 cm
- B. 5.0 cm
- C. 5.25 cm
- D. 5.5 cm. Discuss
- 2. The centre of gravity of a homogenous body is the point at which the whole
Options- A. volume of the body is assumed to be concentrated
- B. area of the surface of the body is assumed to be concentrated
- C. weight of the body is assumed to be concentrated
- D. all the above. Discuss
- 3. Moment of interia of a squares of side fa about an axis through its centre of gravity, is
Options- A. b3/4
- B. b4/12
- C. b4/3
- D. b4/8
- E. b4/36. Discuss
- 4. A particle moving with a simple harmonic motion, attains its maximum velocity when it passes
Options- A. the extreme point of the oscillation
- B. through the mean position
- C. through a point at half amplitude
- D. none of these. Discuss
- 5. The Centre of gravity of a 10 x 15 x 5 cm T section from its bottom, is
Options- A. 7.5 cm
- B. 5.0 cm
- C. 8.75 cm
- D. 7.85 cm
- E. none of above. Discuss
- 6. Pick up the correct statement from the following :
Options- A. If two equal and perfectly elastic smooth spheres impinge directly, they interchange their velocities.
- B. If a sphere impinges directly on an equal sphere which is at rest, then a fraction
(1 - e2) the original kinetic energy is lost by the impact. - C. If a smooth sphere impinges on another sphere, which is at rest, the latter will move along the line of centres.
- D. If two equal spheres which are perfectly elastic impinge at right angles, their direction after impact will still be at right angles.
- E. All the above. Discuss
- 7. The unit of moments in M.K.S system, is
Options- A. kgm
- B. kg/m2
- C. kg/sec2
- D. kg/sec. Discuss
- 8. The velocity ratio of an inclined plane of inclination ? with horizontal for lifting a load is
Options- A. sin ?
- B. cos ?
- C. tan ?
- D. sec ?
- E. cosec ?. Discuss
- 9. Periodic time of body moving with simple harmonic motion, is
Options- A. directly proportional to its angular velocity
- B. directly porportional to the square of its angular velocity
- C. inversly proportional to the square of its angular velocity
- D. inversely proportional to its angular velocity. Discuss
- 10. Two parallel forces 20 kg and 15 kg act. In order that the distance of the resultant from 20 kg force may be the same as that of the former resultant was from 15 kg, the 20 kg force is diminished by
Options- A. 5.5 kg
- B. 6.25 kg
- C. 8.75 kg
- D. 10.5 kg. Discuss
Applied Mechanics problems
Search Results
Correct Answer: 5.0 cm
Correct Answer: weight of the body is assumed to be concentrated
Correct Answer: b4/12
Correct Answer: through the mean position
Correct Answer: 8.75 cm
Correct Answer: All the above.
Correct Answer: kgm
Correct Answer: cosec ?.
Correct Answer: inversely proportional to its angular velocity.
Correct Answer: 8.75 kg
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