Correct Answer:- Option-A
Question78:-What is the use of NAHNI trap .....
A:-to collect waste water from bath room
B:-to collect rain water
C:-to collect soil pipe from sewage
D:-to collect raw water from river
Correct Answer:- Option-A
Question79:-Why mono block pumps are more popular .....
A:-large in size
B:-small in size
C:-no valves
D:-no priming
Correct Answer:- Option-B
Question80:-How many pipes are there in a one pipe system .....
A:-one
B:-three
லோ
0-0
Correct Answer:- Option-D
Question81:-What are the materials required for flanged joint .....
A:-cement and hemp yam
B:-screw and washer

C:-nut and bolt
D:-lead and tin
Correct Answer:- Option-C
Question82:-How much clearance from wall to be kept while laying G.I. pipe intemally
‏٣ 1.5-ھ‎

D:-4.5 em
Correct Answer:- Option-A
Question83:-What is the general fixing height of wash basin from floor level
A:-80 ‏٣۰‎
‎8:-70 तो)
C:-60 cm
D:-65 cm
Correct Answer:- Option-A
QuestionB4:-What is height of fixing of automatic cistemn for urinal .....
A:-1800 mm
B:-1900 mm
C:-1600 mm
D:-1500 mm
Correct Answer:- Option-B
Question85:-How many types of flushing cistemns are available based on operation .....
A:5 types
B:-3 types
C:-4 types
D:-2 types
Correct Answer:- Option-D
Question86:-What is the size of waste coupling for kitchen sink
A:-32 mm
B:-50 mm
C:-38 mm
D:-40 mm
Correct Answer:- Option-B
Question87:-the brick எ stone used in comer masonry of a wall is called .....
A:-king closer
B:-blank space
C:-quoin closer