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Oxy Acetylene

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.
Oxygen is represented by which color
a)
Red
b)
Green
c)
Blue
d)
Yellow
2.
Acetylene is represented by which color
a)
Blue
b)
Red
c)
Yellow
d)
Green
e)
3.
In the Oxy-Acetylene rig, acetylene is used to
a)
produce the flame
b)
oxidize the metal
c)
blow metal from the cut
d)
stabilize the flame
4.
In the Oxy-Acetylene rig, oxygen is used to
a)
cool the metal
b)
produce the flame
c)
blow metal from the cut
d)
stabilize the flame
5.
The maximum safe rate for drawing acetylene from a cylinder is ____ of the cylinder’s capacity per hour.
a)
1/7
b)
1/4
c)
1/2
d)
3/4
6.
The correct shade lens for brazing or cutting with the oxy-acetylene rig is
a)
1
b)
4
c)
2
d)
8
7.
Oxygen & acetylene are sold by the ________________________.
a)
ounce
b)
gallong
c)
pound
d)
cubic foot
8.
Gas leaks on an oxy-acetylene rig are checked with
a)
compressed air
b)
soapy water
c)
flame
d)
teflon
9.
The acetylene line pressure should never exceed
a)
5 psi
b)
10 psi
c)
15 psi
d)
20 psi
10.

The acetylene tank valve should be opened _________ turn for safety reasons.

a)

3/4

b)

1 1/4

c)

1 1/2

d)

2

11.
Removing gas from oxyacetylene lines is known as
a)
pressure release
b)
line maintenance
c)
line purging
d)
bleeding the lines
12.
An orifice is
a)
an edge
b)
a hole in the tip
c)
a type of torch
d)
a type of tip
13.

Oxygen decreases the temperature of the acetylene flame.

a)

True

b)

False

14.

A backfire is a short pop of the torch flame followed by extinguishing of the flame or continued burning of the gases.

a)

True

b)

False

15.

The low pressure gauge-shows the pressure in the cylinder.

a)

True

b)

False

16.

Regulators reduce the high storage cylinder pressure to a suitable working pressure.

a)

True

b)

False

17.

A flint striker is an all-purpose tool designed to fit all fittings on an oxyacetylene rig.

a)

True

b)

False

18.

When moving cylinders, be certain they are tied to the cart securely.

a)

True

b)

False

19.

To light the oxyacetylene torch, it is okay to use a match.

a)

True

b)

False

20.

What do we check before setting up the torch?

a)

The regulators have pressure

b)

the T screws are set

c)

The Valves are only open 1 turn

d)

The regulators are at 0

21.

Before you can back out the T screws what must you do?

a)

Release pressure from regulators

b)

Wrap up lines

c)

Purge acetylene from torch tip

d)

close tank valves

22.

When adding oxygen to the flame, your goal is to get a

a)

carburizing flame

b)

neutral flame

c)

oxidizing flame

23.

Acetylene threads are?

a)

Straight

b)

Female

c)

Reverse

d)

Over sized

24.

When opening the oxygen tank, how far to we open the valve?

a)

All the way

b)

Half way

c)

One turn

d)

Half a turn

25.

When opening the acetylene tank how much do we open the valve?

a)

All the way

b)

Half way

c)

One turn

d)

Half a turn