Oxyacetylene Part A And B

Question 0

Why should you never cut close or directly on top of concrete with a cutting torch

Answer 0

The slag coming off the torch can make many explosions that’s damaging the concrete

Question 1

Is a number 5 lens darker than a number 4 true or false

Answer 1

True

Question 2

How many PSI is a full oxygen bottle

Answer 2

2200 psi

Question 3

What is the purpose of a ruptured disc and what pressure does it ruptured

Answer 3

Ruptured disc is a safety device to protect oxygen from extreme pressure caused by heat and fire 3300 psi

Question 4

What is the maximum safe working pressure of acetylene

Answer 4

15 psi

Question 5

Critical point of acetylene

Answer 5

28 psi

Question 6

Which bottle has a fusible plug and what temperature doesn’t melt

Answer 6

Acetylene at 100°C

Question 7

What are the two functions of flux

Answer 7

Cleans the surface and keeps the oxygen from oxidizing material

Question 8

Why should you remove all traces of flux

Answer 8

Because the flux will continue to eat away at the metal

Question 9

If your torch cutting a 1/8 material the angle of inclination should be more than if you’re cutting 3/8 material true or false

Answer 9

True

Question 10

What are the two piercing hole methods

Answer 10

Traveling torch method and still torch method

Question 11

What does the term draw limit mean

Answer 11

The maximum amount of acetylene that can be taken from the cylinder without drawing acetone with it