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- Question
The settling velocity of the particles larger than 0.06 mm in a settling tank of depth 2.4 is 0.33 m per sec. The detention period recommended for the tank, is
Options- A. 30 minutes
- B. 1 hour
- C. 1 hour and 30 minutes
- D. 2 hours
- E. 3 hours.
- Correct Answer
- 2 hours
- 1. At the same mean velocity, the ratio of head loss per unit length for a sewer pipe flowing full to that for the same pipe flowing half full would be :
Options- A. 2.0
- B. 1.63
- C. 1.00
- D. 0.61 Discuss
- 2. Pick up the cohesive soil from the following:
Options- A. Red earth
- B. Clay
- C. Black cotton soil
- D. Compacted ground. Discuss
- 3. Kaolin is chemically classified as
Options- A. metamorphic rock
- B. argillaceous rock
- C. calcareous rock
- D. silicious rock. Discuss
- 4. A part of the slab may be considered as the flange of the T-beam if
Options- A. flange has adequate reinforcement transverse to beam
- B. it is built integrally with the beam
- C. it is effectively bonded together with the beam
- D. all the above. Discuss
- 5. Carbonates in water produce
Options- A. temporary hardness
- B. permanent hardness
- C. acidity
- D. alkanity. Discuss
- 6. At lower culmination, the pole star moves
Options- A. eastward
- B. westward
- C. northward
- D. southward. Discuss
- 7. While designing a stair, the product of rise and going is approximately kept equal to
Options- A. 350
- B. 420
- C. 450
- D. 500
- E. 600. Discuss
- 8. The rock which is not calcareous, is :
Options- A. lime stone
- B. macl
- C. chalk
- D. laterite
- E. none of these. Discuss
- 9. Tacking rivets in compression plates not exposed to the weather, have a pitch not exceeding 300 mm or
Options- A. 16 times the thickness of outside plate
- B. 24 times the thickness of outside plate
- C. 32 times the thickness of outside plate
- D. 36 times the thickness of outside plate. Discuss
- 10. Expansion joints are provided if the length of concrete structures exceeds
Options- A. 10 m
- B. 15 m
- C. 15 m
- D. 35 m
- E. 45 m Discuss
More questions
Correct Answer: 1.63
Correct Answer: Black cotton soil
Correct Answer: argillaceous rock
Correct Answer: all the above.
Correct Answer: temporary hardness
Correct Answer: eastward
Correct Answer: 420
Correct Answer: laterite
Correct Answer: 32 times the thickness of outside plate
Correct Answer: 45 m
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