WorksheetsWelding Safety - Oxygen Acetylene (Gas) Section 2
Total questions: 13
Worksheet time: 10mins
Name
Class
Date
1.
When lighting the torch what tool is used:
a)
match
b)
pocket lighter
c)
friction lighter
d)
flint
2.
Welding on a tank that has contained flammable liquid is:
a)
easy to do
b)
done sometimes
c)
never done in this shop
d)
dependent on your skills
3.
You must report any leaks of cylinders or connections immediately to the:
a)
custodian
b)
instructor
c)
maintenance department
d)
welder nearest you
4.
Due to the heat from the open flame, point the welding torch:
a)
down and away from yourself
b)
away from all flammables
c)
away from other students
d)
all options are correct
5.
When oxy-acetylene welding or cutting, the shade lens to be used is a:
a)
# 1-2
b)
# 5-6
c)
# 8-9
d)
# 11-12
6.
Where are you more likely to have a potential fire hazard when using welding and cutting equipment:
a)
the gas welding area
b)
the production set up area
c)
the arc welding area
d)
those areas where portable equipment is being used
7.
Cutting or welding should not be done where an open flame could be dangerous. Areas would include:
a)
in or near rooms containing flammable vapors and liquids
b)
where flammable liquids are stored or used
c)
in a room with high lint or flammable dust or exposed loose combustible materials
d)
all options are correct
8.
What precautions do you take if you have to weld or cut in an area where combustible materials cannot be removed or covered?
a)
have a fire extinguisher close at hand
b)
dampen the exposed area with water before welding
c)
have a fire watch stand by while the welding is being done
d)
all options are correct
9.
If in doubt about any welding operation what should you do first?
a)
check with another student
b)
check reference materials in your notebook
c)
check with the instructor
d)
None of the options are correct
10.
If an acetylene cylinder develops a leak and it cannot be closed by tightening the valve and packing unit:
a)
set the cylinder outside the building away from possible fire, notify supplier immediately
b)
run away quickly
c)
use "welder's emergency stop leak"
d)
check leaks with open flame
11.
When welding torch backfires (pops and/or blows itself out), you should:
a)
close the oxygen needle valve first
b)
close the acetylene needle valve first
c)
drop the equipment and run
d)
inspect all the connections slowly and carefully
12.
If the welding torch flashes back (the flame begins to burn back inside the equipment) and the torch squeals, smokes, or the handle gets hot:
a)
close the oxygen needle valve first
b)
close the acetylene needle valve first
c)
drop the equipment and run
d)
inspect all the connections slowly and carefully
13.
After you have finished welding and/or cutting, what should be done to turn off the entire system before you leave class?
a)
close the valves at the cylinders or manifold
b)
bleed the lines
c)
back off the regulator adjusting screws
d)
you must do all of the things listed to ensure the entire system is off
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