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- Question
A water treatment plant is required to process 28800 m3/d of raw water (density = 1000 kg/m3, kinematic viscosity = 10-6 m2/s). The rapid mixing tank imparts tank a velocity gradient of 900s-1 to blend 35 mg/l of alum with the flow for a detention time of 2 minutes. The power input (W) required for rapid mixing is
Options- A. 32.4
- B. 36
- C. 324
- D. 32400
- Correct Answer
- 32400
- 1. The capacities of "One-way 1.5 m wide sidewalk (persons per hour)" and "One-way 2-lane urban road (PCU per hour, with no frontage access, no standing vehicles and very little cross traffic)" are respectively.
Options- A. 1200 and 2400
- B. 1800 and 2000
- C. 1200 and 1500
- D. 2000 and 1200 Discuss
- 2. If ? and ? be the elevations of two objects A and B respectively, ? be the angle observed by a sextant. The correct horizontal angle is
Options- A.
- B.
- C.
- D. none of these. Discuss
- 3. A particle moves along a straight line such that distance x traversed in t seconds is given by x = t2(t + 1), the acceleration of the particle, will be
Options- A. 3t3 - 2t
- B. 3t2 + 2t
- C. 6t - 2
- D. 6t + 2
- E. 3t - 2 Discuss
- 4. Principle of Transmissibility of Forces states that, when a force acts upon a body, its effect is
Options- A. maximum if it acts at the centre of gravity of the body
- B. different at different points on its line of
- C. same at every point on its line of action
- D. minimum if it acts at the C.G. of the body
- E. none of these. Discuss
- 5. The maximum resistance against rotation, is offered by the weld at a point
Options- A. most distant
- B. least distant
- C. at either end
- D. centrally located. Discuss
- 6. Pick up the correct abbreviation from the following:
Options- A. I.L.S. (instrument landing system)
- B. V.H.F, (very high frequency)
- C. L.O.M. (low powered outer marker)
- D. L.M.M. (low powered middle marker)
- E. All the above Discuss
- 7. In using the data from a plate bearing test for determining the modulus of subgrade reaction, the value of settlement to be used is :
Options- A. 1.25 mm
- B. 2.50 mm
- C. 3.75 mm
- D. 1.75 mm Discuss
- 8. Pick up the incorrect statement from the following. The source of surface water is from
Options- A. streams and rivers
- B. storage reservoirs
- C. springs
- D. ponds and lakes
- E. none of these. Discuss
- 9. ? is coefficient of friction. A wheeled vehicle travelling on a circular level track will slip and overturn simultaneously if the ratio of its wheel distance to the height of its centroid, is
Options- A. ?
- B. 2?
- C. 3?
- D.
?.
Discuss
- 10. The value of bearing capacity factor for cohesion, Nc, for piles as per Meyerhof, is taken as :
Options- A. 6.2
- B. 12.0
- C. 9.0
- D. 5.14 Discuss
More questions
Correct Answer: 1200 and 2400
Correct Answer:
Correct Answer: 6t + 2
Correct Answer: same at every point on its line of action
Correct Answer: most distant
Correct Answer: All the above
Correct Answer: 1.25 mm
Correct Answer: springs
Correct Answer: 2?
Correct Answer: 5.14
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