Ventilation

Question 1

In modern high rises, the ventilation system must move how many cubic feet per minute?

Answer 1

50 cubic feet

Question 2

Tempered glass in high rises is no longer required after what year?

Answer 2

1996 due to HVAC systems

Question 3

Air flow is typically static in stair shafts of buildings up to how high?

Answer 3

Up to 25 stories. Over 25 will have natural air flow

Question 4

In buildings over 25 stories, how fast can natural air flow move in the stairwells?

Answer 4

3-6 mph

Question 5

The typhoon blowers are how much more effective than regular gas powered blowers?

Answer 5

Twice as effective

Question 6

On high rise fires, who is responsible for ensuring the stairwells get pressurized?

Answer 6

Lobby Control

Question 7

In high rise fires, how far back from the door shall blowers be set up and in what configuration?

Answer 7

4-6’ tilted back 5 degrees

In a “v” configuration

Question 8

In a high rise fire, if windows must be broken, which side of the building shall they be broken on?

Answer 8

Leeward side

Question 9

Blowers are effective up to how many stories?

Answer 9

25

Question 10

According to book 100, during a high rise fire, what stairwells should be pressurized?

Answer 10

All of them

Question 11

According to book 100, during a high rise fire, occupants from what floors MUST be evacuated?

Answer 11

2 floors above
2 floors below
Fire floor