Probation 121.16

Question 1

1. How does a member check for roof stability?

Answer 1

Sound with a tool

Question 2

2. How would you warn members below that you are about to break a skylight?

Answer 2

Break a small amount of glass- pause- then continue, or use your portable radio

Question 3

3. What indications could you use to determine that you are over a main body of fire?

Answer 3

• Bubbling Tar
• Fire showing from a top floor
• Dry spots
• Melting snow

Question 4

4. What is a “Kerf” cut?

Answer 4

Small triangular observation hole

Question 5

5. Describe a salvage cover?

Answer 5

12’ x 18’ heavy duty plastic cover with grommets (24) on the sides and ends

Question 6

6. When throwing a coverall what should be done to expel air?

Answer 6

Pull down sharply

Question 7

7. When forming a catch all what and where are the folds made?

Answer 7

Ends are 24”, the Sides are 18” and the corners are folded in but not patted down

Question 8

8. When using two salvage covers to form a floor cover how is the seam made?

Answer 8

First cover is folded back on itself 8” then the next cover is married on top and then 2 folds of 4” each are made and then patted down (8-4-4)

Question 9

9. When shutting gas off by a curb gate valve where is it located and how do you shut it off?

Answer 9

Located between the curb and property line, turn clockwise until it resists usually 6 to 20 turns depending on the size of the valve

Question 10

10. If a fire valve cannot be opened at first what may you do to assist yourself in gaining access?

Answer 10

Tap around the edge while applying pressure in a counter clockwise direction

Question 11

11. Gas meters can be turn off how?

Answer 11

Turning stopcock so that the operating lug is crosswise to the pipe a ¼ turn

Question 12

12. Concerning Building Construction types of loads are broken into what broad categoriesand describe them?

Answer 12

Dead and Live Loads- Dead loads are weight of material permanently attached to the building,
Live loads included people, equipment and other weight not attached

Question 13

13. What is the difference between a lintel and a header?

Answer 13

Both are a beam that spans an opening the difference is a header used in wood construction, a Lintel is used in masonry construction

Question 14

14. What are the five broad categories developed to classify structures?

Answer 14

Type I   Fire Resistive
Type II  Non-Combustible
Type III Ordinary
Type IV Heavy Timber
Type V  Wood Frame

Question 15

15. What is a load bearing wall?

Answer 15

A load bearing wall carries the weight of beams, other walls, floors and roofs as well as its own
weight

Question 16

16. How can light weight (composite) wood I beam fail without direct fire contact?

Answer 16

Ambient heating causes the binding glue to fail, leading to failure

Question 17

17. Describe balloon frame construction?

Answer 17

Older (pre 1950) wood frame buildings wood studs ran from foundation to roof and floors were
hung on the studs. Fire could enter wall and run straight to the attic.

Question 18

18. When positioning apparatus members should attempt to place apparatus based on the established minimum collapse zone of?

Answer 18

1 ½ times the height of the fire building

Question 19

19. Define the term fire load?

Answer 19

The amount of heat energy released when combustibles burn in a given area or building expressed
in British Thermal Units (BTU’s)

Question 20

20. Define ventilation?

Answer 20

The planned, methodical and systematic removal of pressure, heat, smoke, gasses and some cases
even flame from an enclosed area through predetermined paths.

Question 21

21. Ventilation can be broken down into two types, what are they?

Answer 21

Natural opening of building windows and doors letting physics take care of the rest
Mechanical use of smoke fans, water and other mechanical devices to create air movement

Question 22

22. Mechanics of ventilation can be broken down into how many types and describe each one?

Answer 22

Two Vertical and Horizontal
Vertical channeled pathway for fire ventilation via vertical openings
Horizontal channeled pathway for fire ventilation via horizontal openings

Question 23

23. General observations show that weather can play a part in the ventilation process?

Answer 23

Such as cool dry days allow the smoke to rise and escape vertically better, on rainy humid days smoke will lift more slowly

Question 24

24. What path shall smoke and heated gasses follow?

Answer 24

The path of least resistance

Question 25

25. By not permitting the heat level to linger on a material long enough, list the three (3) things which might be prevented?

Answer 25

Flashover, Backdraft and Rollover

Question 26

26. What is the space between a ceiling of the top floor and the bottom of a roof called?

Answer 26

A Cockloft

Question 27

27. Define the term Backdraft?

Answer 27

Unburned smoke is heated absence of oxygen, and, when oxygen is introduced, produces an explosive force

Question 28

28. What is the most common tool which can be used to stop the flow of water from a sprinkler head?

Answer 28

Wedge

Question 29

29. A) The purpose of overhaul is to? | B) The principal purpose of salvage is to?

Answer 29

A) To ensure that the fire is completely extinguished | B) To protect materials from water and smoke damage

Question 30

30. The most common hazard of salvage work is?

Answer 30

Ceiling collapse

Question 31

31. Overhaul should be done as carefully as possible so as to assist in what?

Answer 31

Fire Cause Determination for the Fire Investigator

Question 32

32. What causes the most damage to a structure on the fire ground?

Answer 32

Water damage

Question 33

33. What is another name for plaster board?

Answer 33

Sheetrock

Question 34

34. List two warning signs that plaster board might be ready for collapse?

Answer 34

Seams will begin to show as water seeps and sagging will become noticeable as if not nailed Properly

Question 35

35. What position should a post indicator valve (PIV) be locked in?

Answer 35

Open