Oxyacetylene

Question 1

What goggles should be worn when using oxyacetylene?

Answer 1

Either a #4 or #5 in a green shade

Question 2

What should you do if an oxygen cylinder leaks?

Answer 2

Remove it from service, take outside away from sources of ignition, tag it as to the type of fault, and notify the supplier.

Question 3

What do you do when a cylinder requires filling?

Answer 3

Should marked MT with chalk or soapstone.

Question 4

What should you do to a cylinder before it is stored or transported?

Answer 4

A removable cap should be installed to protect the valve

Question 5

The valve on a oxygen cylinder has what kind of thread turn?

Answer 5

Right hand thread

Question 6

Goggles are worn when using Oxyacetylene equipment to protect the eyes from?

Answer 6

Light, heat, Sparks and slag.

Question 7

Technician a says it is acceptable to carry a disposable lighter in your pocket when using Oxyacetylene equipment. Technician B says nylon clothing is much better to wear then cotton when using Oxyacetylene equipment which technician is right?

Answer 7

Neither technician

Question 8

To check for leaks and Oxyacetylene equipment you should use?

Answer 8

Soap and water

Question 9

Shop ventilation is adequate when cutting which of the following with Oxyacetylene equipment?
A.) galvanized sheet metal
B.) The cadmium coated muffler
C.) A piece of metal joint with lead tin-alloy solder
D.) none of the above

Answer 9

D.) none of the above

Question 10

If grease is exposed to pure oxygen, the grease can explode: 
A.) without ignition
B.) only if a spark ignited it 
C.) only if a flame ignited it 
D.) any of the above

Answer 10

A.) without ignition

Question 11

When oxygen from a cylinder is being used, the valve should be opened?
A.) fully 
B.) no more than 2 turns 
C.) no more than 1 turn 
D.) no more than 1/2 turn

Answer 11

A.) fully

Question 12

Fusible plug in acetylene cylinders are located: 
A.) in the top of the cylinder 
B.) in the bottom of the cylinder 
C.) both a) and b) 
D.) neither a) or b)

Answer 12

C.) both a) and b)

Question 13

Acetylene should be drawn from an acetylene cylinder only when the cylinder is:
A.) located with the words up only pointing up
B.) upright
C.) on its side
D.) upside down

Answer 13

B.) upright

Question 14

As the cylinder pressure decreases, what does the the outlet pressure from a pressure regulator do?

Answer 14

It remains constant

Question 15

What colour is the oxygen hose that is used with Oxyacetylene equipment?

Answer 15

Green

Question 16

What colour is the acetylene hose used with Oxyacetylene?

Answer 16

Red

Question 17

All fittings used for oxygen used in Oxyacetylene equipment:
A.) are identified with an annular groove
B.) are left hand threaded
C.) both a) and b)
D.) neither a) or b)

Answer 17

D.) neither a) or b)

Question 18

Flashback arrestors used with Oxyacetylene equipment are installed in?

Answer 18

Both the oxygen line and the acetylene line

Question 19

What do you do when you are finished using the Oxyacetylene equipment?

Answer 19

The oxygen and acetylene should be shut off at the cylinders, and the regulators should be backed out completely.

Question 20

What is the most suitable flame to use when heating with Oxyacetylene equipment?

Answer 20

A neutral flame

Question 21

When do you start cutting an Oxyacetylene torch is:
A.) always held at 90° to the material
B.) inclined more for thin material
C.) inclined more for thick material
D.) held at a 45° angle to start the cut and straight to 90° as the cut progresses

Answer 21

B.) inclined more for thin material

Question 22

A backfire that occurs when using an Oxyacetylene heating tip might occur because?

Answer 22

Acetylene pressure is too low

Question 23

What material can be cut easily using an Oxyacetylene torch cutting attachment?

Answer 23

Carbon steel

Question 24

When using Oxyacetylene equipment for heating, the acetylene regulator is adjusted to?
A.) The pressure used when balancing the torch
B.) The pressure recommended by the manufacturer
C.) 7kPa (1psi) per tip size
D.) 105 kPa (15psi) per tip size

Answer 24

A.) The pressure used when balancing the torch