Free Printable Oxy-Acetylene gas welding safety

Worksheets

Oxy-Acetylene gas welding safety

Total questions: 23

Worksheet time: 14mins

Name

Class

Date

When you turn on the oxygen cylinder valve:

never stand directly in front or behind the oxygen regulator

never stand directly in front of the oxygen regulator

never stand directly behind the oxygen regulator

it doesn’t matter where you stand

You should check connections for leaks on welding equipment with:

a match

soap solution

your ear

your hand

Cylinders should be set so that they are:

upright and secure

anywhere in the shop

laying on their side

none of the options are correct

The maximum amount that the acetylene main cylinder valve should be opened is:

1 to 1 1/2 turn

2 1/2 to 3 turns

4 1/2 to 5 turns

all the way

When using gas welding equipment what is the greatest potential hazards to be observed when working with this type of equipment?

electrical shock

back injuries

fires and explosions

toxic fumes

A cylinder of gas should never be used without a:

spark lighter

cylinder cap

suitable pressure reducing regulator

standard high pressure hose

When lighting the torch what tool is used:

match

pocket lighter

Spark lighter

flint

When oxy-acetylene welding or cutting, the shade lens to be used is a:

# 1-2

# 5-6

# 8-9

# 11-12

When welding torch backfires (pops and/or blows itself out), you should:

close the oxygen needle valve first

close the acetylene needle valve first

drop the equipment and run

inspect all the connections slowly and carefully

10.

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:

close the oxygen needle valve first

close the acetylene needle valve first

drop the equipment and run

inspect all the connections slowly and carefully

11.

After you have finished welding and/or cutting, what should be done to turn off the entire system before you leave class?

close the valves at the cylinders or manifold

bleed the lines

back off the regulator adjusting screws

you must do all of the things listed to ensure the entire system is off

12.

Which of the following is Oxy fuel Welding ?

13.

What is the correct PSI for Oxygen when cutting with Oxy Acetylene?

25 psi

35psi

45psi

1psi

14.

What is the correct PSI for Acetylene on oxy fuel cutting?

1psi

5psi

15.

Green hoses on Oxy fuel cutting indicate

oxygen hose

acetylene hose

nitrogen hose

argon hose

16.

Which of the following is NOT a part of the fire triangle?

Air

Heat

Fuel

Oxygen

17.

Why are there different fittings on Oxygen and Fuel gas hoses?

To colour code them

To prevent putting the wrong fitting on the wrong hose

To extend the life of the fuel gas

Oxygen hoses need to hold higher pressure

18.

When do we check for leaks?

After the first cut of the day

Before shutting down the equipment

After setting up the equipment

When the supervisor tells us too

19.

What form of radiation is present when Oxy-Fuel cutting?

Ultra Violet

Gamma Rays

Infared Rays

Visible light

20.

If a cylinder is damaged from misuse by the emplyee, who is responsible for repairing the cylinder?

The employee who damaged it

The employer that purchased the cylinder

The supplier of the gas

The manufacturer of the cylinder

21.

What safety device is used in Acetylene cylinders?

Fusible plugs

Critical failure plugs

Critical point inhibitor

Thermal couplings

22.

Never set acetylene working pressure above

23.

Acetylene threads are?

Straight

Female

Reverse

Over sized

Reset

Oxy-Acetylene gas welding safety

Total questions: 23

Worksheet time: 14mins

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