Mining Engineering > GATE 2020 > Mine Safety
In the context of gas testing using flame safety lamp, the correct statement is
A
Each accumulation test has to be necessarily followed by percentage test.
B
Accumulation test is always done after percentage test.
C
Either percentage test or accumulation test can be done first.
D
Percentage test is done only in the event of accumulation test giving negative result.

Correct : d

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gas testing flame safety lamp mining engineering gate accumulation test percentage test GATE Mining Engineering 2020 gas testing sequence flame safety lamp test accumulation test percentage test sequence negative result test sequence

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