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- Question
The following statement is one of the laws of Dynamic friction
Options- A. The force of friction always acts in a direction opposite to that in which a body is moving
- B. The magnitude of the kinetic friction bears a constant ratio to the normal reaction between two surfaces. The ratio being slightly less than that in the case of limiting friction
- C. For moderate speeds the force of friction remains constant but decreases slightly with the increase of speed
- D. all the above.
- Correct Answer
- all the above.
- 1. Longitudinal pavement lines marked broken in white paint
Options- A. are for the guidance of the drivers
- B. are not to be crossed over
- C. may be crossed over at the discretion of the driver
- D. all the above. Discuss
- 2. In compression members, the lap length of a bar should not be less than
Options- A. 12 ?
- B. 16 ?
- C. 20 ?
- D. 24 ?
- E. 30 ? Discuss
- 3. Bernoulli's equation assumes that
Options- A. fluid is non-viscous
- B. fluid is homogeneous
- C. flow is steady
- D. flow is along the stream line
- E. all the above. Discuss
- 4. If ? is the observed altitude, the refraction correction in seconds, is
Options- A. 58" cot ?
- B. 58" tan ?
- C. 58 sin ?
- D. 58 cos ?. Discuss
- 5. The minimum recommended diameter of sewers, is
Options- A. 5 cm
- B. 10 cm
- C. 15 cm
- D. 20 cm. Discuss
- 6. Conical surface of the approach area rises outwards
Options- A. 1 in 10
- B. 1 in 15
- C. 1 in 20
- D. 1 in 25 Discuss
- 7. The outstand of stiffeners should be (where t is the thickness of flat).
Options- A. 6 t
- B. 8 t
- C. 10 t
- D. 12 t Discuss
- 8. The advantage of reinforced concrete, is due to
Options- A. monolithic character
- B. fire-resisting and durability
- C. economy because of less maintenance cost
- D. moulding in any desired shape
- E. All the above. Discuss
- 9. A stratum of clay 2 m thick will get consolidated 80% in 10 years. For the 80% consolidation of 8 m thick stratum of the same clay, the time required is
Options- A. 100 years
- B. 120 years
- C. 140 years
- D. 160 years
- E. 180 years. Discuss
- 10. The ideal form of curve for the summit curve is :
Options- A. spiral
- B. parabola
- C. circle
- D. lemniscate Discuss
More questions
Correct Answer: may be crossed over at the discretion of the driver
Correct Answer: 24 ?
Correct Answer: all the above.
Correct Answer: 58" cot ?
Correct Answer: 15 cm
Correct Answer: 1 in 20
Correct Answer: 12 t
Correct Answer: All the above.
Correct Answer: 160 years
Correct Answer: parabola
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