Book 100: Ventilation Flashcards
Book 100: Ventilation
A downward draft or “Reverse Stack Effect” becomes more pronounced when the outside temperatures are ________.
Higher
Book 100: Ventilation
Stairshafts in high rise buildings constructed after ______ are required to employ a Stairshaft Ventilation System.
1974
Book 100: Ventilation
Stairshaft Ventilation fans must provide not less than ____ cubic feet per minute while maintaining a positive pressure not over ___ lbs. on interior doors.
50 cubic feet
25 lbs
Book 100: Ventilation
Stratification of smoke and fire gases occurs as heat and smoke travels vertically within the building. These products will cool as they rise until the temperature is _______ to the temperature of the surrounding air and will then form layers or clouds of smoke and fire gases. These layers serve as a “lid” for other products that will then bank down below Stratified Smoke and spread ___________.
Equal
Horizontally
Book 100: Ventilation
_____________ is a condition caused by smoke and fire gases that cannot vertically escape a building. Smoke and gases will rise then bank down.
Mushrooming
Book 100: Ventilation
Tempered Glass Windows are identified by a ___ inch luminous or Reflective Decals in a Lower Corner which indicate they are for “Fire Department Use.”
3 inch
Book 100: Ventilation
What are the City of LA Window Requirements:
Pre 60:
Post 60:
Post 74:
Post 1996:
Pre 60: Openable windows
Post 60: Tempered glass on at least TWO sides (At corners and at 50’ intervals or less)
Post 74: Tempered glass on FOUR sides (At corders and at 50’ intervals or less)
Post 1996: Smoke Control System required eliminating the tempered glass requirement.
Book 100: Ventilation
Tempered Glass Windows are identified by a ___ inch luminous or Reflective Decals in a Lower Corner which indicate they are for “Fire Department Use.”
3 inch
Book 100: Ventilation
What may be substituted for Tempered Glass requirements?
1.
2.
Openable Windows
Mechanical Smoke Removal Systems
Book 100: Ventilation
Prior to BREAKING windows a ________ notification SHALL be made indicating the need and intention to break glass and specific side of the building.
Radio
Book 100: Ventilation
Unless the HVAC system is contributing to the spread of fire or smoke throughout the building, it should be left in the ____ position.
ON
Book 100: Ventilation
Natural Air Flow within building stairs hafts is virtually static in buildings up to ____ stories.
25
Book 100: Ventilation
Buildings OVER ___ stories will naturally flow minimal amounts of air in an UPWARD direction.
25
Book 100: Ventilation
Natural Vertical Air Currents of ___ to ___ mph that flow upward in stairshafts can be created by simply opening doors at the BOTTOM and ROOF levels of the stairshaft.
3 to 6 mph
Book 100: Ventilation
Consider the use of Water Turbine Driven positive pressure ventilators which will provide less noise and more than ______ the cubic feet of air per minute.
twice
