FFP PD Ch 6 LW

Question 0

Fires in traditional pd built of ordinary/wood frame construction early collapse is not a primary consideration. The amount of time before collapse occurs is generally estimated to be ?

Answer 0

Estimated to be an hour.

Question 1

In any building construction, the critical area subject to failure as a result of fire is ?

Answer 1

Point of connection

Question 2

Traditional construction collapse estimated to be an hour. When there is no ceiling to provide protection therefore exposing structural components failure can occur w/i __?

Answer 2

within 20 minutes

Question 3

In PD constructed with LW material when fire extends from buildings content to its structural components collapse may occur within __ to __ minutes?

Answer 3

5 to 10 minutes. Can occur suddenly & with little or no warning signs.

Question 4

Area’s unsupported by columns with spans greater than __’ are generally an indication that LW construction is present?

Answer 4

> 25’

Question 5

Trussloft?

Answer 5

Is an enclosed area between floors & ceiling where open truss construction is found.

Question 6

LW wood truss roofs may be flat or peaked. The most common type of peaked roof found in LW construction?

Answer 6

Open web LW wood truss.

Question 7

Fire stopping installed above the ceiling is limited, resulting in an open space which could encompass entire area of bld, NYC bld code requires spaces between the ceiling & floor above or ceiling & roof be divided into approx equal areas of __sq ft or less?

Answer 7

500sq ft or less – unless bld is equipped with auto sprinkler.

Question 8

Gusset plates or gang nails penetrate __ to __ inches?

Answer 8

1/4” to 1/2”

Question 9

Laminated wood i-beams in some cases may span lengths of over __’ ?

Answer 9

Over 60’

Question 10

A heavy fire & smoke condition on a floor or in the cellar accompanied by little or no smoke condition on the floor or floors above may be indication of a ?

Answer 10

Concrete or gypsum floor poured over corrugated steel(q-decking )supported by c-joists.

Question 11

Unless the fire is minor or confined to a small area, the primary emphasis for a fire in a LW bld under construction is

Answer 11

Exterior attack.

Question 12

The presence of smoke pushing at the floor line on the outside of a building may be an indication of a fire in a ?

Answer 12

Trussloft

Question 13

IC shall special call an __ for structural in bld with LW materials?

Answer 13

Engine co

Question 14

PD LW - the nozzle FF should use the __ method due to potential of fire & heat weakening the floor system & causing a collapse?

Answer 14

Leg forward

Question 15

When can a roof be cut?

Answer 15

No circumstances.

Question 16

Fire on top floor - no indication that fire has entered cockloft , roof ops limited to?

Answer 16

1. Chk rear & sides of bld
2. Venting top floor windows/skylights
3. Inspecting hvac ducts for unusual heat
   * **all members removed upon completion of these duties

Question 17

Top floor fire & there is indication it has extended to the attic/ cockloft, IC immediately notified & ?

Answer 17

Members NOT permitted on the roof

Question 18

Before proceeding to floor above, members should determine?

Answer 18

1. Location/extent of fire
2. Presence of life hazard(known-suspected)
3. Position & progress of 1st/2nd hoseline

Question 19

The best time to gather info on the specific type of support systems in LW buildings is ?

Answer 19

During the construction phase.

Question 20

What is always the primary consideration in buildings constructed with lightweight materials

Answer 20

Collapse

Question 21

T or f. When lightweight construction is suspected an immediate examination of the ceiling voids shall be conducted as soon as conditions permit

Answer 21

True