• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/1

Click to flip

1 Cards in this Set

  • Front
  • Back
  • 3rd side (hint)
How do you augment stairwell PPV if built-in stairway fans are not present or ineffective?
One fan at 1st floor, 4-6' from doorway, 5-15 degree tilt.

Another fan three below fire floor, blowing into stairwell. (this fan is important to generating enough pressure)
-If using smokebuster...
fan 3 floors below fire is not necessary.
(You can open roof hatch to vent smoke, then close it to keep pressurization.)

HRTM 26