B:-water tight seal
C:-water peel seal
D:-none of the above
C:-water peel seal
D:-none of the above
Correct Answer:- Option-B
2:-What is the use of hand taps .....
A:-internal threads
B:-external threads
C:-internal gauge
D:-internal drilling
B:-external threads
C:-internal gauge
D:-internal drilling
Correct Answer:- Option-A
3:-In an acetylene cylinder the acetylene is dissolved in .....
A:-carbon dioxide
B:-water
C:-acetone
D:-mercury
B:-water
C:-acetone
D:-mercury
Correct Answer:- Option-C
4:-Which grade G I pipe is used for water supply.....
A:-yellow
B:-blue
C:-red
D:-brown
B:-blue
C:-red
D:-brown
Correct Answer:- Option-B
5:-The angle of metric thread is .....
A:-60 digree
B:-55 digree
C:-90 digree
D:-47 digree
B:-55 digree
C:-90 digree
D:-47 digree
Correct Answer:- Option-A
6:-What are the diameter of A C pipes available in .....
A:-4 cm to 100 cm
B:-5 cm to 100 cm
C:-2 cm to 100 cm
D:-6 cm to 100 cm
B:-5 cm to 100 cm
C:-2 cm to 100 cm
D:-6 cm to 100 cm
Correct Answer:- Option-C
7:-Name the tool used to check internal pipe threads .....
A:-pipe taps
B:-ring gauge
C:-pipe plug threads
D:-pipe bush
B:-ring gauge
C:-pipe plug threads
D:-pipe bush
Correct Answer:- Option-C
8:-When pressure test can be started in solvent welder PVC pipe line
A:-after 24 hours
B:-after 12 hours
C:-after 5 hours
D:-after 36 hours
B:-after 12 hours
C:-after 5 hours
D:-after 36 hours
Correct Answer:- Option-A
9:-Where are collar joints used .....
A:-smaller diameter C I pipe
B:-small diameter A C pipe
C:-small diameter S W pipe
D:-small diameter P V C pipe
B:-small diameter A C pipe
C:-small diameter S W pipe
D:-small diameter P V C pipe
Correct Answer:- Option-B
10:-Which is the place preferred to fix scour valve .....
A:-lowest point in pipe line
B:-higher point in pipe line
C:-straight line in pipe line
D:-none of the above
B:-higher point in pipe line
C:-straight line in pipe line
D:-none of the above
Correct Answer:- Option-A
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