MP 202.1D Positive Pressure Ventilation

Question 1

All of what kind of fires qualify for early application of PPV?

Answer 1

All Offensive Fire Operations

Question 2

Who orders PPV and when?

Answer 2

• Command should

- where appropriate and early in the operation

Question 3

What should Ladder Companies plan as they dismount their apparatus

Answer 3

to take fans to the fire scene to apply PPV

Question 4

Where should positive pressure fans be placed?

Answer 4

at the point of entry from the unburned side of the fire

Question 5

How far should fans be positioned back from entry point?

Answer 5

12-15 feet

Question 6

What is the objective of fans being placed 12-15 feet back from the entry point?

Answer 6

to create a pressure “cone” effect around the door

Question 7

Which is more affective when using 2 fans? Side by side or one behind the other? And what is this called?

Answer 7

• one behind the other

- “tandem”

Question 8

What must be provided for pressurized air and were should this be located?

Answer 8

• an “exit”

- located in the fire area (generally a window, door, or other opening)

Question 9

Who’s responsibility is it to ensure that there is an “exit” for pressurized air and that the PPV is set up at the unburned side of the fire?

Answer 9

The Ladder Company Officer

Question 10

What will happen if too many openings or exit points during PPV?

Answer 10

it will reduce the effectiveness of PPV

Question 11

What is required when using a gas powered fan during overhaul and why?

Answer 11

• a breathing apparatus

- they produce carbon monoxide