A:-after 24 hours
B:-after 12 hours
C:-after 5 hours
D:-after 36 hours
Correct Answer:- Option-A
Question59:-Where are collar joints used .....
A:-smaller diameter C | pipe
-small diameter A C pipe
C:-small diameter S W pipe
D:-small diameter P V C pipe
Correct Answer:- Option-B
Question60:-Which is the place preferred to fix scour valve .....
A:-lowest point in pipe line
-higher point in pipe line
C:-straight line in pipe line
D:-none of the above
Correct Answer:- Option-A
Question61:-Spindle of gate valve rotates without closing due to .....
A:-spindle thread badly worn-out
B:-spindle is bend
C:-gland nut loose
D:-defective packing
Correct Answer:- Option-A
Question62:-What is the size of manhole generally constructed within compound for house drainage ..
A:-90 x 70 cm
B:-90 x 80 cm
C:-90 x 60 cm
D:-90 x 90 cm
Correct Answer:- Option-B
Question63:-Name the valve is used to regulate the pressure in pipe line .....
A--relief valve
B:-needle valve
C:-gate valve
D:-check valve
Correct Answer:- Option-A
Question64:-what is the size of frog in brick .....
A:-100 mm length x 40 mm width x 10 to 20 mm depth
B:-100 mm length x 30 mm width x 10 mm to 25 mm depth
C:-100 mm length x 50 mm width x 10 mm to 15 mm depth
D:-none of the above
Correct Answer:- Option-A
Question65:-Cross cut chisel is used for .....
A:-chipping excess metal
B:-curved grooves
C:-key ways
D:-corner
Correct Answer:- Option-C
Question66:-Which types of pipes can be cut easily by pipe cutter
A:-S.W. pipe

B:-C.l. Pipe
C:-A.C. Pipe
D:-G.l. Pipe

Correct Answer:- Option-D
Question67:-Name the apparatus used for testing slump .....
A:-sand cone test
B:-Mud cone test
C:-Slump cone test
D:-None of the above
Correct Answer:- Option-C