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DCFD Probationer test > DCFD 121.16 > Flashcards

DCFD 121.16 Flashcards

1
Q

How does a member check for roof stability?

A

Sound with a tool

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2
Q

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

A

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

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3
Q

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

A
  • bubbling tar
  • fire showing from a top floor
  • dry spots
  • melting snow
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4
Q

What is a “Kerf” cut?

A

small triangular observation hole

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5
Q

Describe a salvage cover

A

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

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6
Q

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

A

pull down sharply

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7
Q

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

A

Ends are 24’, the sides are 18’ and the corners folded in but not patted down.

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8
Q

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

A

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

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9
Q

When shutting gas off by a curb gate where is it located , and how do you shut if off?

A

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

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10
Q

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

A

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

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11
Q

Can gas meters be turned off? If so, explain the process.

A

Turn stopcock so that the operating lug is crosswise to the pipe a 1/4 turn.

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12
Q

What is the term for the chemical damage that occurs to wood when it is heated?

A

Pyrolysis

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13
Q

Fire-retardant wood is treated with______.

A

Mineral salts.

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14
Q

What is the term for plastics that will melt under fire conditions?

A

Thermoplastics

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15
Q

What is commonly used structural material in a Type I building?

A

Protected Steel

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16
Q

Which type of construction is called ordinary construction?

A

Type 3

17
Q

The structural components of a Type____ building will not burn.

A

Type 2

18
Q

Which type of construction is heavy timber?

A

Type 4

19
Q

What is type 5 construction?

A

Wood frame

20
Q

Which structural component is composed of relatively small and lightweight components arranged in a series of triangles?

A

Truss

21
Q

What are smoke, heat, and toxic gases called collectively?

A

products of combustion

22
Q

What is the term for an open space within a wall where wires and pipes run?

A

Chase

23
Q

Within a room or space, where are the hottest gases found?

A

At the highest level

24
Q

What is the term for the transfer of heat through a circulating medium of liquid or gas?

A

Convection

25
Q

Which sort of air movement is likely on a hot day in an air-conditioned tall building?

A

Downdraft

26
Q

In ordinary construction, exterior walls are made of_____.

A

Noncombustible or limited-combustible materials

27
Q

In which construction type are there uninterrupted channels in the walls from foundation to attic?

A

Balloon Frame

28
Q

Which hazard is of particular concern in a basement fire?

A

Smoke and heat venting up the stairs toward fire fighters

29
Q

What is the maximum wattage that an apparatus-mounted generator can produce?

A

Between 10,000 and 15,000 watts

30
Q

The output range for portable lights is generally_____watts.

A

300 to 1500 watts

31
Q

What is the term for operations undertaken to limit or reduce property loss?

A

salvage

32
Q

What is the term for operations undertaken to find and extinguish any remaining pockets of fire?

A

overhaul

33
Q

The lighting and power equipment used on an emergency scene generally operate at_______

A

110-volt AC

34
Q

Which device interrupts the current when there is a problem with an electrical ground?

A

GFI

35
Q

It is permissible to remove SCBA during salvage operations after______.

A

Atmosphere has been tested and found safe

36
Q

The first portable light should be set up_____.

A

At the entry point into the structure

DCFD Probationer test (5 decks)

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