BC Quiz 8

Question 1

01. The main seating area of a church is known as the?
Select one:
a. Chancel
b. Apse
c. Nave
d. Triforium

Answer 1

(Ch 8 Pg 49)

The correct answer is: Nave

Question 2

2. When a fire building has a steel bar joist system supporting the roof, the preferred ventilation for the advance of the hose lines is?
   Select one:
   a. Horizontal vent of windows and doors
   b. Vertical roof vent

Answer 2

(Ch 9 Pg 51)

The correct answer is: Horizontal vent of windows and doors

Question 3

(Ch 9 Pg 51)

The correct answer is: Horizontal vent of windows and doors

Answer 3

(Ch 9 Pg 52)
The correct answers are: They do not collapse suddenly, They generally give warning before they collapse, The roof deck will soften before joist failure occurs, They withstand high temperatures for long periods of time before they fail

Question 4

4. Most H-type apartments have what kind of beams?
   Select one:
   a. Restrained beams—brick cavity, which are more stable under fire conditions
   b. Unrestrained beams—corbel shelf, which are less stable under fire conditions

Answer 4

(Ch 9 Pg 52-53)

The correct answer is: Unrestrained beams—corbel shelf, which are less stable under fire conditions

Question 5

5. When a FF is evacuating a roof, which tactic would be incorrect?
   Select one:
   a. If ordered to evacuate a roof, a FF should take the shortest path.
   b. If roof evacuation is urgent, a FF should crouch down, move ahead slowly, and use a tool or outstretched leg to feel for the presence of a roof deck and its stability
   c. A FF momentarily blinded by smoke or darkness and in no immediate danger, may be best to remain in place until the wind changes and the smoke clears
   d. A disoriented FF should not walk upright

Answer 5

(Ch 9 Pg 54)
The correct answer is: If ordered to evacuate a roof, a FF should take the shortest path.

Don’t take the shortest path, take the safest path

Question 6

06. Steel starts to distort and lose strength when flames reach \_\_\_\_\_ degrees Fahrenheit?
Select one:
a. 1100-1200
b. 1000-1100
c. 800-900
d. 900-1000

Answer 6

(Ch 10 Pg 55)

The correct answer is: 1000-1100

Question 7

7. Thin steel can reach 1100 degrees much faster than thick solid steel I-beams and large solid steel can absorb more heat before reaching the critical failure temperature.
   Select one:
   a. Agree
   b. Disagree

Answer 7

(Ch 10 Pg 55)

The correct answer is: Agree

Question 8

8. The critical failure temperature of steel depends on what factor(s)?
   Select one or more:
   a. The fire protection covering over the steel surface
   b. The span of the steel beam
   c. The heat of the fire
   d. The dimension of the steel
   e. The load the steel carries

Answer 8

(Ch 10 Pg 55)
The correct answers are: The heat of the fire, The load the steel carries, The dimension of the steel, The span of the steel beam, The fire protection covering over the steel surface

Question 9

9. The best method of protecting steel from fire from a FF’s point of view is?
   Select one:
   a. EFIS systems
   b. Membrane ceilings
   c. Concrete encasement
   d. Spray on Fire Retarding Material (SFRM)

Answer 9

(Ch 10 Pg 56)

The correct answer is: Concrete encasement

Question 10

10. Applications of Spray on Fire Retarding Material (SFRM) over primer paint reduce adhesion of SFRM effectiveness by?
Select one:
a. 100%
b. ¼ to ½
c. ½ to ¾
d. 1/3 to ½

Answer 10

(Ch 10 Pg 56)

The correct answer is: 1/3 to ½

Question 11

11. SFRM effectiveness requires adhesion, consistency and thickness.
    Select one:
    a. Disagree
    b. Agree

Answer 11

(Ch 10 Pg 57)

The correct answer is: Agree

Question 12

12. The Fire Service considers \_\_\_\_\_ degrees to be the failure temperature of steel, because at that temperature, steel will lose \_\_\_\_\_ % of its load carrying ability?
Select one:
a. 1100, 40
b. 1000, 50
c. 1100, 50
d. 1000, 40

Answer 12

Ch 10 Pg 58)

The correct answer is: 1100, 40

Question 13

13. Regarding the causes of failure of steel, which point(s) are correctly stated as factors?
    Select one or more:
    a. Large size steel and lightweight steel structural supports have large amounts of heat sink capacity
    b. The heat sink property of steel lengthens the time it takes for steel to reach its collapse temperature.
    c. The greater the supported load, the faster a steel structural member will fail
    d. Because steel is a good conductor of heat, when the surrounding flame or heat reaches 1100 degrees, the steel will simultaneously reach that temperature
    e. Large area fires involving large amounts of a steel beam will heat a steel

Answer 13

(Ch 10 Pg 59-60) A-there will be a time lag to reach the same temperature, D. Lightweight steel structural supports have little amounts of heat sink capacity
The correct answers are: The greater the supported load, the faster a steel structural member will fail, The heat sink property of steel lengthens the time it takes for steel to reach its collapse temperature., Large area fires involving large amounts of a steel beam will heat a steel beam to its critical temperature more quickly

Question 14

14. The main concern of the Fire Service with Lightweight Wood Truss systems is the Sheet Metal Surface Fasteners that penetrate the wood surface to a depth of only ¼” to ½”.
    Select one:
    a. Disagree
    b. Agree

Answer 14

(Ch 11 Pg 61)

The correct answer is: Agree

Question 15

15. Parallel Chord Lightweight Truss systems found in concealed spaces allow fire spread to be \_\_\_\_\_ % faster than in the concealed spaces of buildings with solid beam wood construction.
Select one:
a. 50
b. 100
c. 200
d. 150

Answer 15

(Ch 11 Pg 62)

The correct answer is: 100

Question 16

16. Two vertical lines found on the front door of a building in New York State indicate?
Select one:
a. Truss Construction
b. Lightweight Construction
c. Solid Beam Construction

Answer 16

(Ch 11 Pg 62)

The correct answer is: Truss Construction

Question 17

17. The most dangerous ceiling system for firefighters is a?
    Select one:
    a. Directly affixed ceiling
    b. Suspended ceiling

Answer 17

(Ch 12 Pg 63)

The correct answer is: Suspended ceiling

Question 18

18. Which point below is incorrect regarding a suspended ceiling collapse?
    Select one:
    a. Lightweight metal grids with removable panels do not create crushing or pinning hazards
    b. The size of a suspended ceiling determines the seriousness of the entrapment hazard
    c. The grid system is the heaviest part of the suspended ceiling
    d. The part of the suspended ceiling that traps a firefighter is the wood or metal grid

Answer 18

(Ch 12 Pg 64)The weight determines the seriousness of the entrapment hazard
The correct answer is: The size of a suspended ceiling determines the seriousness of the entrapment hazard

Question 19

19. If members are suddenly trapped under a collapsed suspended ceiling, the most important first step is to?
    Select one:
    a. Begin searching the store area via adjoining buildings
    b. Cut the ceiling grid
    c. Sweep the collapse area above the ceiling with a hose line
    d. Raise the collapsed ceiling with a ladder

Answer 19

(Ch 12 Pg 65)

The correct answer is: Sweep the collapse area above the ceiling with a hose line

Question 20

20. When a suspended ceiling collapses at a store fire, it would be incorrect to think?
    Select one:
    a. Going down an outside cellar entrance may allow access to the interior of the store
    b. A portable ladder can be used as a raising lever to lift up part of the collapsed ceiling
    c. The grid system must be cut apart first before the ceiling sheathing is cut or pulled apart
    d. Rescue attempts from the rear of the store are usually faster than adjoining store attempts

Answer 20

Chapter 12 - Breaching partition walls from adjoining stores is generally faster than beaching masonry walls of the rear.

Question 21

21. Which types of stairs are generally independent of the floor structure and will not fail if the floor collapses?
Select one:
a. Straight Run
b. U-Return
c. L-shaped

Answer 21

(Ch 13 Pg 70)

The correct answer is: U-Return

Question 22

22. A wooden, stacked, straight run stairway will collapse in one section if the carriage beam supports at the top or bottom fastened to the floors double trimmer are weakened by fire.
    Select one:
    a. Agree
    b. Disagree

Answer 22

(Ch 13 Pg 70)

The correct answer is: Agree

Question 23

23. Regarding injuries at fires with steel framed U-Return stairs, it is incorrect to state?
    Select one:
    a. Intermediate landings supported by a steel pan often collapse
    b. The most serious injuries occur when the intermediate stair landing collapses
    c. Members should avoid stepping on an intermediate landing when possible
    d. The most frequent cause of collapse is the failure of a tread or step
    e. Intermediate landings most often collapse under the weight of a descending member

Answer 23

(Ch 13 Pg 71-72) Intermediate landings supported by a steel pan do not collapse
The correct answer is: Intermediate landings supported by a steel pan often collapse

Question 24

24. When climbing a fire-weakened wooden stair, members should stay close to the?
    Select one:
    a. Outer carriage beam
    b. Wall side of the stair

Answer 24

(Ch 13 Pg 72)

The correct answer is: Wall side of the stair