Exam (elaborations)
CSA W47.1 WELDING QUESTIONS AND ANSWERS
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CSA W47.1 WELDING QUESTIONS AND ANSWERS
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CSA W47.1 WELDING QUESTIONS AND ANSWERSWhich of the following is a recommended material for protective clothing for oxygen-
acetylene gas welding or cutting?
a) nylon
b) polyester
c) leather
d) asbestos - Answers-
What is the pressure of a full oxygen cylinder?
a) 200 psi
b) 2000 psi
c) 2200 psi
d) 3200 psi - Answers-
Which type of valve contains a double seal?
a) oxygen cylinder valve
b) acetylene cylinder valve
c) oxygen regulator valve
d) acetylene regulator valve - Answers-
What type of safety device is used on an acetylene cylinder?
a) a rupture disc
b) a pressure disc
c) fusible plugs
d) pressure relief valve - Answers-
In which position should the regulator adjustment handles be placed before opening the
cylinder valves?
a) turned out halfway
b) turned out until free
c) turned in all the way
d) removed from the regulator - Answers-
Which is the best solution to use for detecting leaks on oxy-acetylene equipment?
a) alchohol
b) water
c) soap and water
d) snoop - Answers-
What is the maximum safe working gauge pressure for acetylene gas?
a) 8 psi (55 kPa)
b) 15 psi (103 kPa)
c) 22 psi (152 kPa)
d) 30 psi (207 kPa) - Answers-
, Which chemical is used in acetylene cylinder to stabilize the acetylene?
a) carbon dioxide
b) nitrogen
c) acetone
d) helium - Answers-
An oxygen cylinder is:
a) a two piece welded cylinder
b) a one piece forged cylinder
c) a one piece cast cylinder
d) a two piece stamped cylinder - Answers-
An oxygen cylinder must be able to withstand a pressure of _____ psi to be qualified for
service.
a) 200 psi
b) 300 psi
c) 2000 psi
d) 3000 psi - Answers-
Acetylene gas is made up of two atoms of carbon and two atoms of ____.
a) oxygen
b) hydrogen
c) carbon dioxide
d) acetylene carbide - Answers-
The hose nuts for oxygen and acetylene differ, because the acetylene hose nuts _____.
a) have left hand threads
b) have grooves or notches cut in them
c) may have ACET stamped on them
d) all of the above - Answers-
To prevent the occurrence of flashbacks, a _____ should be installed between the
regulator and the hose, and between the torch and the hose.
a) two-way check valve
b) flame screen
c) flashback arrestor
d) three-way check valve - Answers-
When installing a welding tip on a combination torch, how tight should the tip be?
a) hand tight
b) 15 in. lbs
c) 15 ft. lbs
d) snug with a wrench - Answers-
Which of the following statement(s) about cylinder handling is correct?
a) they should be stores in an upright position
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