Discussion
Home ‣ Civil Engineering ‣ Tunnelling See What Others Are Saying!
- Question
The following operations are generally employed for tunnelling in hard rock.
1. Removing ground water,
2. Loading holes and firing the explosive
3. Setting up and drilling
4. Grouting and lining
5. Removing muck
6. Ventilation and removing explosion dust
The correct sequence is :
Options- A. 3 2 6 5 1 4
- B. 3 4 6 1 5 2
- C. 4 1 2 3 6 5
- D. 5 4 2 1 3 6
- Correct Answer
- 3 2 6 5 1 4
- 1. The digested sludge from septic tanks, is removed after a maximum period of
Options- A. 3 years
- B. 3.5 years
- C. 4 years
- D. 5 years. Discuss
- 2. Chlorination of water does not remove
Options- A. ammonia content
- B. B.O.D.
- C. organic matter content
- D. dissolved oxygen. Discuss
- 3. If the loss due to friction in pipes is 4 m, the total losses in strainer and bends may be taken as
Options- A. 0.10 m
- B. 0.20 m
- C. 0.5 m
- D. 1.0 m. Discuss
- 4. Stoke's law does not hold good if the size of particle is smaller than
Options- A. 0.0002 mm
- B. 0.002 mm
- C. 0.02 mm
- D. 0.2 mm Discuss
- 5. Stoneware sewers are available in size
Options- A. 10 cm
- B. 15 cm
- C. 20 cm
- D. 25 cm
- E. all the above. Discuss
- 6. The diameter of main bars in R.C.C. columns, shall not be less than
Options- A. 6 mm
- B. 8 mm
- C. 10 mm
- D. 12 mm Discuss
- 7. The inner section of a cavity wall, is generally known as
Options- A. butress
- B. leaf wall
- C. pillaster
- D. pillar. Discuss
- 8. The product of CAF (S P) and PWF (S P) is:
Options- A. 1/2
- B. 1
- C. 1/3
- D. 1/4 Discuss
- 9. For critical flow, the Froude number is :
Options- A. 1.0
- B. less than 1.0
- C. more than 1.0
- D. 2 Discuss
- 10. A wing rail is renewed or reconditioned if its maximum vertical wear is
Options- A. 9.5 m
- B. 7.5 m
- C. 5.5 m
- D. 5.0 m Discuss
More questions
Correct Answer: 3 years
Correct Answer: dissolved oxygen.
Correct Answer: 1.0 m.
Correct Answer: 0.0002 mm
Correct Answer: all the above.
Correct Answer: 12 mm
Correct Answer: leaf wall
Correct Answer: 1
Correct Answer: 1.0
Correct Answer: 9.5 m
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