Question

no additional details were added for this assignment.
base - wide and heavy to provide stability making the burner less likely to tip over
gas regulation needle valve - controls gas flow into the burner
gas intake - barbed hose fitting to accept the tubing carrying gas to the burner
air regulation ports - control air flow into the burner through alignment of inner and outer openings
air intake collar - a rotatable cylinder adjusting air port alignment
barrel - provides a mixing space for gas and air
question 5.3.3
match each bunsen burner component with a description number 1 - 3. each description should be used only once.

1. adjusts air port alignment
2. accepts gas carrying tubing
3. control air flow

safety consideration - site preparation
a bunsen burner operates with an open, exposed flame, so safe operation requires careful site preparation

1. remove any combustible or flammable material from the area where the bunsen burner will be used. there should not be a

Explanation:

The air - intake collar is a rotatable cylinder that adjusts air port alignment, so it matches with description 1. The air regulation ports control air flow into the burner through alignment of inner and outer openings, so they match with description 3. The gas intake has a barbed hose fitting to accept the tubing carrying gas to the burner, so it matches with description 2.

Answer:

Air intake collar - 1, Air ports - 3, Gas intake - 2