The correct lighting procedure for an oxyacetylene torch is:
A) Crack both the acetylene and oxygen and light the mixture.
B) Crack the oxygen and light it first, then add the acetylene.
C) Crack the acetylene and light it first, then add the oxygen.
D) Fully open both the acetylene and oxygen, wait 30 seconds, and then light the mixture.
C
You might also like to view...
To prevent blowing the meter fuse in a DMM ________
A) Never test resistance of an energized circuit B) Install a fuse in line with the meter lead C) Both A and B D) Neither A nor B
Class I fires include petroleum and solvent-type fires
Indicate whether the statement is true or false
In a parallel RLC circuit just above the resonant frequency, the impedance is:
A) more inductive. B) more capacitive. C) at maximum. D) at minimum.
?In addition to groundwater contamination, decomposing garbage in landfills produces _____, a greenhouse gas more potent than _____ .
A. ?carbon monoxide; methane B. ?nitrous oxide; carbon dioxide C. ?methane; carbon dioxide D. ?carbon dioxide; nitrous oxide