Author Question: When preparing the welding area, it is important to _____. a. close all doors and windows b. use ... (Read 123 times)

olgavictoria · **on:** Jul 24, 2018

When preparing the welding area, it is important to _____.

a. close all doors and windows
b. use compressed oxygen to blow away debris
c. know the location of the nearest fire extinguisher
d. keep the area well-ventilated with oxygen

Question 2

What is the hazard of having a high concentration of oxygen in a welding work area?

a. A spark could cause rapid and uncontrolled combustion of flammable materials.
b. The oxygen could mix with nitrogen to form a highly explosive gas.
c. Oxygen is considered to be toxic in the presence of welding.
d. Too much oxygen will displace normal breathing air needed by the welder.