The upper safe noise level for machine operator is: A. 85 db B.100db C. 110db D.115db

The upper safe noise level for machine operator is:
A. 85 db B.100db
C. 110db D.115db
by

1 Answer

Answer :

A. 85 d
by

Related questions

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An animal drawn seed drill has k number of furrow openers 180mm apart. If the speed of operation is 2.0kmph, the area covered (ha), in 8-11day is given by: A. 1.85/1000k B. 28.8 x 10-2k C. k/6.56 D. 1.762k

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