Quiz 7

Question 1

Which type of flame should be used for most operations when using an oxyacetylene torch?

Answer 1

Neutral flame

Question 2

When setting up an oxyacetylene torch, what is the pressure ratio of fuel to oxidizer?

Answer 2

2 parts oxygen, 1 part fuel

Question 3

You want to run nitrogen in the tube while brazing/soldering to prevent oxidation from forming inside the tube. What pressure do you set your nitrogen flow indicator to?

Answer 3

2-3 psi 5 at max

Question 4

Steel pipe should have how many perfect and imperfect threads per joint?

Answer 4

7 perfect 2-3 imperfect