Multiple Dwelling Fires Section 1 thru 5 Flashcards
A fire partition is a partition provided for the purpose of protecting life by furnishing an area of exit, or refuge, and having a fire resistance rating of?
3 Hours, 1938 Building code
A fire wall is a partition provided for the purpose of protecting life by furnishing an area of exit, or refuge, and having a fire resistance rating of?
4 Hours, 1968 Building code
OLT’s were built before 4/12/1901. They had 2 means of egress which were almost always?
Interior stair and fire escape
These building usually had apartments in the “railroad” fashion 2 apartments per floor. The fire escapes are usually located in the rear. The ever dangerous exception is fire escapes in the front of the building. Who is of concern?
The absence of rear fire escapes is of major concern for the safety of the operating forces
The stairway to the cellar in an OLT is located where?
Inside the building usually beneath the interior stair
New Law Tenements were built after 4/12/1901 they are 85’ deep and have 5-6 apts per floor. Where is the entrance to the cellar?
The entrance to the cellar is by way of exterior stairs. The 1st floor cellar ceiling is of fireproof construction and unpierced.
“Newer” New law tenements were constructed between 1916 and 1929 they had much larger floor area and have very large undivided cocklofts. Where would you ind the entrance to the BASEMENT?
The entrance to the basement is by a side or rear door at that level via an exterior stair from the first floor, or through a passageway located in the front of the building
After 4/18/1929 Tenements changed their name to Apartment houses. Between 1930-1940 firewalls were required to be carried to the UNDERSIDE of the roof boards. After 1940 they had to go to the TOP of the roof boards. Why was this done?
To reduce the size of the cockloft and limit fire spread.
Fire escapes in theses Newer NLT’s are still common. TRUE or FALSE
True and these buildings have hallways hundreds of feet long
Fireproof class “A” MD’s are 4-40 stories or higher. They are well constructed and life hazard outside the fire apartment is not severe. What type of stairs will GENERALLY be found in these buildings?
Apartments may be served by 2 fireproof stairways opening directly into the apartment, or more GENERALLY by 2 fireproof stairways reached by public hallway.
What year did they start building “H” type’s?
1916, 1920’s-1930’ “H” type most popular
What year did they require most OLT’s to fire retard stair enclosures?
1934
In most cases, the first line in a OLT is stretched via the interior stairs to the location of the fire. The purpose is to protect the primary means of egress for evacuating occupants and to confine and extinguish the fire. What is the exception?
Flames issuing from a window endangering people on the fire escapes. The first line may be operated from the street to protect people on the fire escape.
Who should chock the door at a fire in a OLT?
The first MEMBER entering the building should use a chock or rug or other means of preventing the door from locking.
Tower ladders and aerial ladders should not be tied up stretching lines up them. TRUE OR FALSE
TRUE
Hose lines should not be operated into VENTILATION holes from the roof as this decreases ventilation and nullifies the action of lines operating on the top floor. What are the 3 operations a line on the roof should be used for?
Prevent fire from extending past a trench
Protect exposures
Extinguish fire that cannot from below, such as fire in a cornice
A member should ALWAYS be posted in the yard or street below to prevent injuries to anyone from falling material. No material shall be thrown where?
Onto roofs of building setbacks and
into NARROW shafts
Gas meters in OLT’s are usually found in cellars. Where else may they be found?
Apartments and public hallways!