Oxyacetylene Heating And Cutting

Question 1

What’s the pressure that an oxygen tank is filled too?

Answer 1

2175 PSI . 15,000 kPa

Question 2

What do you mark on an empty cylinder?

Answer 2

MT

Question 3

What’s the thread direction of the oxygen valves?

Answer 3

Right hand

Question 4

At what pressure does the frangible or burst disc vent?

Answer 4

22MPA . 3200psi

Question 5

What is added to water to form Acetylene?

Answer 5

Calcium Carbide

Question 6

What gives Acetylene odour?

Answer 6

Impurities give it a garlic-like odour

Question 7

What’s the flammability range of Acetylene?

Answer 7

2.5-81%

Question 8

What’s the melting point of the fusible plugs?

Answer 8

100C

Question 9

How full do they fill the porous material with Acetylene?

Answer 9

40%

Question 10

How do you increase the pressure on the regulator?

Answer 10

Rotate the adjusting screw clockwise

Question 11

What’s the burst pressure of the hose?

Answer 11

2760 kPa . 400 psi

Question 12

Who must ensure each hose had a backflow device

Answer 12

The employer

Question 13

How hot is an Acetylene flame?

Answer 13

800 C

Question 14

How hot is a carbonizing flame?

Answer 14

3150-3175C

Question 15

How hot is a neutral flame

Answer 15

3230C

Question 16

How hot is an oxidizing flame?

Answer 16

3280C

Question 17

What can cause a backfire?

Answer 17

Not enough gas,
Dirty or loose connection
Hot tip

Question 18

How close do you put the preheating flames?

Answer 18

1.6mm above the material