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- Question
Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its vertex and parallel to the base, is __________ than that passing through its C.G. and parallel to the base.
Options- A. nine times
- B. six times
- C. four times
- D. two times
- Correct Answer
- nine times
- 1. The friction experienced by a body, when at rest, is known as
Options- A. static friction
- B. dynamic friction
- C. limiting friction
- D. coefficient of friction Discuss
- 2. The acceleration of a body sliding down an inclined surface is
Options- A. g sin ?
- B. g cos ?
- C. g tan ?
- D. none of these Discuss
- 3. The moment of inertia of a solid sphere of mass m and radius r is
Options- A. 2mr2/3
- B. 2mr2/5
- C. mr2
- D. mr2/2 Discuss
- 4. The centre of gravity a T-section 100 mm x 150 mm x 50 mm from its bottom is
Options- A. 50mm
- B. 75mm
- C. 87.5mm
- D. 125mm Discuss
- 5. The law of the machine is(where P = Effort applied to lift the load, m = A constant which is equal to the slope of the line, W = Load lifted, and C = Another constant which represents the machine friction.)
Options- A. P = mW - C
- B. P = m/W + C
- C. P = mW + C
- D. P = C - mW Discuss
- 6. Coplaner non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.
Options- A. meet
- B. do not meel Discuss
- 7. The velocity ratio of a simple wheel and axle with D and d as the diameters of effort wheel and load axle, is
Options- A. D + d
- B. D - d
- C. D x d
- D. D / d Discuss
- 8. One kg force is equal to
Options- A. 7.8 N
- B. 8.9 N
- C. 9.8 N
- D. 12 N Discuss
- 9. In order to determine the effects of a force, acting on a body, we must know
Options- A. magnitude of the force
- B. line of action of the force
- C. nature of the force i,e. whether the force is push or pull
- D. all of the above Discuss
- 10. If a number of forces are acting at a point, their resultant is given by
Options- A. (?V)2 + (?H)2
- B.
- C. (?V)2 +(?H)2 +2(?V)(?H)
- D.
Discuss
Engineering Mechanics problems
Search Results
Correct Answer: static friction
Correct Answer: g sin ?
Correct Answer: 2mr2/5
Correct Answer: 87.5mm
Correct Answer: P = mW + C
Correct Answer: do not meel
Correct Answer: D / d
Correct Answer: 9.8 N
Correct Answer: all of the above
Correct Answer:
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