Question

transport
gases from
the regulator
to the torch

a. torch body

b. regulator

contains
acetylene,
propane, or
another fuel
gas

c. hoses

d. fuel gas
cylinder

controls gas
pressure from
the cylinder

mixes gases
and controls
flame output

Explanation:

• For "transport gases from the regulator to the torch", hoses (c) are used to transport gases, so match with c.
• For "contains acetylene, propane, or another fuel gas", a fuel gas cylinder (d) stores fuel gas, so match with d.
• For "controls gas pressure from the cylinder", a regulator (b) controls pressure, so match with b.
• For "mixes gases and controls flame output", the torch body (a) does this, so match with a.

Answer:

• "transport gases from the regulator to the torch" - c. hoses
• "contains acetylene, propane, or another fuel gas" - d. fuel gas cylinder
• "controls gas pressure from the cylinder" - b. regulator
• "mixes gases and controls flame output" - a. torch body