CHAPTER 13 - Ventilation

Question 1

You are assigned to vertically ventilate the structure. What should be your greatest concern?

Answer 1

The roof collapsing

Question 2

When cutting a vertical ventilation hole using a power saw, when should you initially start the power saw?

Answer 2

Before going to the roof

Question 3

You need to make a cut using a power saw and axe along and between roof supports so that the sections created can be tilted into the opening. What is this cut called?

Answer 3

Louver cut

Question 4

As the fire begins to spread from one end of the building to the other, the incident commander orders your company to make a roof cut from one load-bearing wall to another load-bearing wall to try to prevent the horizontal spread of the fi re. What is this cut called?

Answer 4

Trench cut

Question 5

Which of the following tools will most likely be used to push down the ceiling after you cut a vertical ventilation hole? Choices: Axe, Pike pole, Power saw, or Halligan tool

Answer 5

Pike pole

Question 6

When setting up positive-pressure ventilation, where should the fan be placed?

Answer 6

3 to 4 ft (0.9 to 1.2 m) in front of the doorway

Question 7

You are assigned to perform hydraulic ventilation. What is this?

Answer 7

Ventilation that relies on the movement of air caused by a fog stream that is placed 2 to 4 ft (0.6 to 1.2 m) in front of the open window

Question 8

Your captain says you are experiencing smoke inversion. What is this?

Answer 8

The condition in which smoke hangs low to the ground due to the presence of cold air