Question

What is the amount of noise produced in hand ramming with a hammer?

(a) 90 dB

(b) 95 dB

(c) 100 dB

(d) 105 dB

The question was posed to me in semester exam.

This key question is from Foundry Environment Health and Safety in division Foundry Environment Health & Dust Problem in Foundries of Casting-Forming-Welding I

Answer 1

The correct choice is (b) 95 dB

The explanation is: In case of sand slingers, 90 dB of noise is produced. In the case of tumblers, 100 dB of noise is produced. In case of shake out, 105 dB of noise is produced, and in case of hand ramming with hammers, 95 dB of noise is produced.