Question

1. which of the following must be kept away from the work area?

a. oil and grease
b. combustibles and flammable liquids
c. other students
d. all of the above

1. always check pressure regulator screws are backed-off before:

a. opening cylinder valves.
b. lighting the torch.
c. using the friction lighter.
d. none of the above.

1. open the acetylene cylinder valve ______turn (s).

a. one
b. 2 1/2
c. 3 full
d. 1/4 to 1/2

1. cooling hot metal in water can cause __________ burns.

a. sun
b. ultraviolet
c. steam
d. floor

1. to light a torch use a__________ only.

a. flint striker
b. match
c. lighter
d. non-flammable source

1. always point the torch,

a. toward the ceiling.
b. toward the door.
c. any direction that is convenient
d. away from you and others.

1. galvanized metal must be ______ before you can weld it.

a. brazed
b. steamed
c. ground off
d. not be done

1. to safely operate cylinder valves, slowly turn the valve

a. true
b. false
c. doesnt matter

Explanation:

Answer:

1. B. combustibles and flammable liquids
2. A. opening cylinder valves
3. D. 1/4 to 1/2
4. C. steam
5. A. flint striker
6. D. away from you and others
7. C. ground off
8. A. True