Ventilation

Question 1

What 5 roles must be TAC Vent Trained

Answer 1

IC
BA X 2
covering jet operator (vent?)
fan operator

Question 2

What are the TAC Vent contra indicators?

Answer 2

No punch out at exhaust
Smoke continuing at the inlet
Smoke and flame at an unexpected exhaust

Question 3

What is ventilation?

Answer 3

The removal of heated air, smoke and other contaminants from a structure or other location and their replacement with a supply of cooler cleaner air.

Question 4

What are the benefits of ventilation?

Answer 4

Replenishing oxygen and reducing carbon monoxide
Controlling temperature and humidity
Removing moisture, dust and other contaminants
Improving visibility and aiding navigation

Question 5

What is tactical ventilation?

Answer 5

The planned removal of heat and smoke from a structure on fire and their replacement with a supply of fresher air to allow other firefighting priorities.

Question 6

What are the four possible objectives for tactical ventilation?

Answer 6

Improve survivability
Improve conditions for entry and search
Reduce potential for rapid fire development
Restrict fire and smoke damage to property

Question 7

What are the two categories of ventilation

Answer 7

Natural ventilation
Forced ventilation (mechanical means)

Question 8

What types of ventilation are there

Answer 8

PPV
NPV
HVAC and Fire Engineered Systems
Powered smoke and heat exhaust systems
Horizontal ventilation
Vertical ventilation
Offensive Ventilation (close to and during)
Defensive ventilation (away from or after)
Uncontrolled ventilation

Question 9

What are the types of uncontrolled ventilation?

Answer 9

Wind driven fire
Coanda effect
Piston effect
Trench effect
Stack effect
Dust explosions