Q
In case of sewer lines_________________?
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A
A. Water test is carried out to check water tightness of the joints
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B
B. Test for straightness is carried out with the help of a lamp and mirror
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C
C. Obstruction test is carried out with the help of smooth ball of diameter 13 mm
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D
D. All the above
Correct Answer:
D. D. All the above
