Q
Pick up the incorrect statement from the following for allowing workers to enter sewers_______________?
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A
A. The particular manhole and one manhole on upstream and one manhole on downstream should remain open for 30 minutes
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B
B. Proper tests for the presence of posionous gases must be carried out
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C
C. The men entering the manhole should be advised to smoke in the sewer
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D
D. Warning signals should be erected
Correct Answer:
C. C. The men entering the manhole should be advised to smoke in the sewer
