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Water Supply Engineering
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Question
The factor to be considered for the source of city water supply, is
Options
A. quantity and quality of the available water
B. elevation of the source of water
C. general terrain intervening the area
D. all the above.
Correct Answer
all the above.
More questions
1. The self-cleansing velocity of water flowing through pipe lines, is
Options
A. 2 metres/sec
B. 1 metre/sec
C. 0.5 metre/sec
D. 0.25 metre/sec.
Show Answer
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Correct Answer: 2 metres/sec
2. The semi-infinite snow albedo is proportional to the square root of the grain radius :
Options
A. in the 0.2 to 0.4 ?m wave length region
B. in the 0.4 to 0.8 ?m wave length region
C. in the 0.8 to 1.2 ?m wave length
D. None of these
Show Answer
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Correct Answer: in the 0.4 to 0.8 ?m wave length region
3. To avoid the tendency of separation of liquid flow, the most suitable ratio of the diameters of the throat and the pipe, is
Options
A. 1/4 to 1/8
B. 1/3 to 1/2
C. 1/2 to 3/4.
D. none of these.
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Correct Answer: 1/3 to 1/2
4. The efficiency of a pump may be taken as
Options
A. 0.55
B. 0.60
C. 0.65
D. 0.70
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Correct Answer: 0.65
5. A wooden block fixed on back side of a door frame on its post, is known as
Options
A. cleat
B. stop
C. horn
D. none of these.
Show Answer
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Correct Answer: stop
6. If a 30 m chain diverges through a perpendicular distance
d
from its correct alignment, the error in length, is
Options
A.
B.
C.
D.
E.
.
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Correct Answer:
7. In sewers the highest non-scouring velocity is achieved in
Options
A. glazed bricks sewers
B. cast iron sewers
C. cement concrete sewers
D. stone ware sewers.
Show Answer
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Correct Answer: glazed bricks sewers
8. The difference in gradients after full super-elevation and the initial alignment of a road, is known as
Options
A. ruling gradient
B. rising gradient
C. compensated gradient
D. differential gradient
E. none of these.
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Correct Answer: differential gradient
9. The radius of influence is
Options
A. radius of the main well
B. distance from the wall of main well to the point of zero draw down
C. distance from the centre of main well to the point of zero draw down
D. none of these.
Show Answer
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Correct Answer: distance from the centre of main well to the point of zero draw down
10. The initial setting time of lime-pozzolana, is
Options
A. 30 minutes
B. 60 minutes
C. 90 minutes
D. 120 minutes.
Show Answer
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Correct Answer: 120 minutes.
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