FO Quiz 2

Question 1

1. Choose the incorrect definition below.
   Select one:
   a. Corbelling is a course of brick built out from the face of a wall, as steps in reverse.
   b. A cantilever is a horizontal structural member supported at one end only.
   c. A canopy is a supported, roof like covering which projects from a wall as an ornamental feature.
   d. An axial load is a force whose resultant is perpendicular to the supporting member but does not pass through the center of the mass.

Answer 1

This would be an Eccentric load (Taxpayers Glossary)
The correct answer is: An axial load is a force whose resultant is perpendicular to the supporting member but does not pass through the center of the mass.

Question 2

2. Which statement made about mezzanine area found in taxpayers is incorrect?
   Select one:
   a. In most cases it is used for the storage of goods, but it can contain offices or sales areas.
   b. The height of the ceilings in the mezzanine and the area below will be above average.
   c. Access to this area may be a small wooden stair or just a ladder.
   d. The majority of mezzanines will not be enclosed and there will be a railing at the edge.

Answer 2

Will be below average (Taxpayers 2.4)

The correct answer is: The height of the ceilings in the mezzanine and the area below will be above average.

Question 3

03. Under the 1938 Building Code, taxpayers with areas exceeding \_\_\_\_\_\_ square feet require sprinkler systems. Under the 1968 Code areas exceeding \_\_\_\_\_\_\_ square feet require a sprinkler.
Select one:
a. 7,500 / 10,000
b. 10,000 / 7,500
c. 5,000 /7,500
d. 7,500 / 5,000

Answer 3

(2.5.1)

The correct answer is: 10,000 / 7,500

Question 4

4. Which one of the following roof types is most common constructed on taxpayers?
   Select one:
   a. Gypsum plank
   b. Wood joist covered with plywood or tongue and groove boards.
   c. Wood bowstring truss
   d. Open web steel joist

Answer 4

(Taxpayers 3.3.1)

The correct answer is: Wood joist covered with plywood or tongue and groove boards.

Question 5

05. Updated calculations have revealed that bowstring truss roofs may only support \_\_\_\_\_\_ % of the load they were originally designed to hold.
Select one:
a. 75
b. 10
c. 40
d. 25

Answer 5

(3.3.3 B)

The correct answer is: 40

Question 6

6. Choose an incorrect statement in regards to wooden bowstring truss systems.
   Select one:
   a. They are commonly found in supermarkets, bowling alleys, lumberyards and storage garages.
   b. They have characteristic hump-like profiles where the roof appears to rise up from below the parapet wall to tower above it.
   c. Wood truss roofs usually sag or get “spongy” prior to failing.
   d. Failure of one truss element can cause a failure of the entire truss.

Answer 6

Wood truss roofs appear to fail without warning. They DO NOT sag or “get spongy” (3.3.3)
The correct answer is: Wood truss roofs usually sag or get “spongy” prior to failing.

Question 7

7. Which statement below was stated correctly when discussing open web steel joists?
   Select one:
   a. They are particularly vulnerable to elevated temperatures of a fire and may collapse after only 5 or 10 minutes.
   b. Found in modern taxpayers, open web steel joists have excellent fire resistance ratings.
   c. They are used to span lengths up to 100 feet.

Answer 7

They have NO fire resistance rating. Fire rating depends upon the ceiling and roof finishes. They are used to span lengths up to 60 feet. (3.3.3)
The correct answer is: They are particularly vulnerable to elevated temperatures of a fire and may collapse after only 5 or 10 minutes.

Question 8

08. Cast iron columns are unpredictable and fail, on the average, in about \_\_\_\_\_ minutes in fire endurance tests.
Select one:
a. 20
b. 45
c. 30
d. 15

Answer 8

(3.7.1)

The correct answer is: 30

Question 9

9. The failure of a column is generally more serious than the failure of a girder or beam.
   Select one:
   a. Agree
   b. Disagree

Answer 9

(3.7.1)

The correct answer is: Agree

Question 10

10. A backdraft, smoke explosion or hot air explosion is the ignition and rapid combustion of a mixture of flammable gas or dust and air which flashes back through openings around the fire area. A room or fire area requires only \_\_\_\_\_ percent of its space to contain the explosive mixture for the entire area to possibly explode.
Select one:
a. 40
b. 15
c. 50
d. 25

Answer 10

(4.4.1 F)

The correct answer is: 25

Question 11

11. All of the following are listed as colors possibly associated with a backdraft except for which choice?
Select one:
a. Dirty brown
b. Orange brown
c. Yellow brown
d. Gray yellow

Answer 11

Also Dense Black Smoke (4.4.1 B3)

The correct answer is: Orange brown

Question 12

12. In newer taxpayers the roof supports are of lightweight open web steel joists. Choose an incorrect choice about lightweight open web steel joists.
    Select one:
    a. The spacing of the joists will vary depending on the strength of the joists and the type of roof decking used.
    b. No members shall be committed to any roof operations at buildings with lightweight open web steel joists.
    c. The most common decking is corrugated steel, with joists spaced from 4 to 6 feet.
    d. They are spaced greater distances apart than the standard wood joists.

Answer 12

These roofs must not be cut. Vertical ventilation should be limited to the removal of skylights and scuttle covers if present. (5.5.26)
The correct answer is: No members shall be committed to any roof operations at buildings with lightweight open web steel joists.

Question 13

13. Which engine company is responsible to ensure the sprinkler system is supplied for a cellar fire in a taxpayer?
Select one:
a. 4th engine
b. 1st engine
c. 2nd engine
d. 3rd engine

Answer 13

(7.2.3 C)

The correct answer is: 3rd engine

Question 14

14. Which engine is responsible to ensure the sprinkler system is supplied at store or cockloft fires in a taxpayer?
Select one:
a. 3rd engine
b. 1st engine
c. 4th engine
d. 2nd engine

Answer 14

(7.3.5)

The correct answer is: 3rd engine

Question 15

15. At a cellar fire in a taxpayer, which unit is responsible for shutting down the utilities?
Select one:
a. 3rd ladder
b. 1st ladder
c. 2nd ladder

Answer 15

(8.2.2)

The correct answer is: 1st ladder

Question 16

16. At a cockloft fire in a taxpayer, which unit is responsible for shutting the gas and electric supply?
Select one:
a. 2nd ladder
b. 1st ladder
c. 3rd ladder

Answer 16

(8.3.3 A)

The correct answer is: 1st ladder

Question 17

17. The Taxpayer bulletin lists three times when a 2nd alarm should be transmitted at these fires. Which one of the following is not listed?
    Select one:
    a. An advanced fire in the cellar
    b. Fire extends to the cockloft
    c. Fire extends to an adjoining occupancy
    d. An advanced fire in a store with two handlines operating.

Answer 17

Special call an extra engine and ladder (5.7.4)

The correct answer is: An advanced fire in a store with two handlines operating.

Question 18

18. Which choice correctly describes the possible height of a cockloft in a taxpayer?
    Select one:
    a. 2 - 3 feet
    b. 1 foot to a height tall enough for a man to stand in.
    c. 4 inches to more than six feet

Answer 18

Choice A is correct for a Rowframe. Choice C is correct for a brownstone. (3.2.1)
The correct answer is: 4 inches to more than six feet

Question 19

19. Engine companies using the fog pattern on the FT-2 tip to relieve an area of smoke and heat would be correct to adjust the fog pattern to the width of the opening and stand back how many feet?
Select one:
a. 2 - 3
b. 3 - 4
c. 1 - 2
d. 4 - 5

Answer 19

(5.4.16)

The correct answer is: 4 - 5

Question 20

20. At a taxpayer fire, cutting a hole \_\_\_\_\_\_\_\_ is recommended in providing ventilation at the roof.
Select one:
a. 3’ x 6’
b. 4’ x 6’
c. 8’ x 8’
d. 8’ x 10’

Answer 20

(5.5.16)

The correct answer is: 8’ x 8’