Question

1st period - ag mech - welding midterm (37 questions)
which of the following substances should never be used on any part of the oxygen equipment?
□ water
□ glue
□ soap
■ oil
when opening a torch, you should never stand in which direction of its
□ behind it
□ diagonal to it
□ in front of it
□ to the side of it
what is the best tool to use when lighting oxy-acetylene?
□ lighter
□ flint striker
□ match
□ open flame
while performing an oxy-fuel welding technique, how much distan
□ 10 feet
□ 3 feet
□ 15 feet
□ 5 feet

Explanation:

First Question (Which substance never on oxygen hoses)

Oxygen hoses and equipment require non - flammable, non - oil - based substances for safety. Oil is flammable and can cause explosions with oxygen. Water, glue, and soap are not flammable in this context, but oil is a hazard. So the answer is Oil (the option with the filled box, but for the question, the correct choice is Oil).

When opening a torch, standing in front of it is dangerous as the flame or gas could be directed at you. Standing behind, diagonal, or to the side is safer. So the correct answer is In front of it.

A flint striker is the safest and recommended tool for lighting oxy - acetylene. Lighters, matches, and open flames are unsafe due to the flammable nature of acetylene. So the correct answer is Flint striker.

Answer:

Oil (the option with the filled checkbox among Water, Glue, Soap, Oil)

Second Question (Torch opening direction)