WK 10 Final

Question 1

When firefighters apply water to the hot gas layer in a compartment, it will:

Answer 1

reduce the radiant heat flux from the upper layer.

Question 2

What must be done when shutting down a dry-barrel hydrant?

Answer 2

Verify that all of the water drains out

Question 3

Type V construction buildings may have a veneer of stucco, brick, or stone that:

Answer 3

provides little fire protection

Question 4

What causes flaming combustion to occur?

Answer 4

A gaseous fuel mixes with an adequate amount of oxygen and heats to ignition temperature.

Question 5

What factor helps determine the flow path in a structure fire?

Answer 5

The floor plan and openings within the structure

Question 6

What are the pawls (dogs) of a ladder designed to do?

Answer 6

Hold the fly section in place after it has been extended

Question 7

A daily/weekly inspection of SCBA should include:

Answer 7

a check of the regulator and facepiece.

Question 8

What should the attack team do if they open the door to a structure and observe a low neutral plane and turbulent smoke?

Answer 8

Apply water to the hot gas layer, but stay outside the structure

Question 9

What are attached to hard-suction hose during drafting operations in order to prevent debris from entering the pump?

Answer 9

Intake strainers

Question 10

Firefighters working on flat roofs are likely to encounter obstacles that penetrate through the roof, including:

Answer 10

skylights

Question 11

How does a compartment fire affect pressure in and around gases in the compartment?

Answer 11

Heat from a fire increases the pressure of the surrounding gases.

Question 12

What is often the most readily available fuel source and significantly influences fire development in a compartment fire?

Answer 12

Contents within the structure

Question 13

What marking or label does NFPA 1931 require to be on all ladders?

Answer 13

Manufacturer’s name plate

Question 14

Which guidelines should be followed when using SCBA?

Answer 14

Only enter an IDLH atmosphere if you have been certified to wear SCBA and properly fit tested.

Question 15

Which type of fire attack involves applying water from the outside of the structure in order to reduce the potential for flashover and make the environment more survivable for an interior attack crew?

Answer 15

Transitional attack

Question 16

Which appliance has one female inlet and multiple male outlets to divide one supply hoseline into two or more hoselines?

Answer 16

Wye appliance

Question 17

The open web design of truss joints:

Answer 17

permits rapid fire spread in multiple directions.

Question 18

The transfer of heat through and between solids is known as:

Answer 18

conduction.

Question 19

When cleaning a ladder, firefighters should:

Answer 19

look for damage or wear and report any defects.

Question 20

A Fire Fighter I should be able to perform general ladder maintenance, including:

Answer 20

storing ladders so that they are free from moisture and vehicle exhaust.

Question 21

Which type of hose transports water from the pumping apparatus to the nozzle where it is applied to the fire?

Answer 21

Attack hose

Question 22

Which is an example of protecting interior exposures?

Answer 22

Closing a door between the fire and unaffected area

Question 23

Which device would be used if multiple supply lines need to be merged into one hoseline, such as when LDH is not available to overcome friction loss in a long hose lay?

Answer 23

Siamese appliance

Question 24

What type of truss is constructed of wood or metal and is generally used to support flat roofs and floor assemblies?

Answer 24

Parallel chord truss

Question 25

Gaseous fuels can be the most dangerous of all fuel types because they:

Answer 25

are already in the physical state required for ignition.

Question 26

Once an extension ladder is raised and in place, the halyard should be:

Answer 26

secured to prevent someone from becoming tangled in it.

Question 27

Which type of cleaning can be done at an incident scene by brushing off loose debris and rinsing the PPE?

Answer 27

Routine cleaning

Question 28

The_____________ on a coupling is a flattened angle at the end of the threads that helps prevent cross-threading when connecting couplings.

Answer 28

higbee cut

Question 29

A firefighter should not turn off electricity to an entire building until he or she is ordered to, because it:

Answer 29

is necessary to operate essential systems such as elevators and HVAC systems

Question 30

When advancing hoseline into a building, why is it important to keep doors closed until you are ready to enter the structure?

Answer 30

Helps prevent changes to the flow path

Question 31

Roof-mounted equipment such as ____________ add a substantial load to the roof and increase the probability of collapse.

Answer 31

HVAC units

Question 32

Materials that burn at normal oxygen levels will burn more intensely in atmospheres.

Answer 32

oxygen-enriched

Question 33

When planning to transition directly from a carry to a raise, a ladder should be carried:

Answer 33

butt first

Question 34

Hazardous materials incidents can involve potentially dangerous nonfire gases and vapors, so firefighters must:

Answer 34

wear SCBA until air monitoring demonstrates that the atmosphere is safe.

Question 35

How should hard intake hose be cleaned after use?

Answer 35

Rinse with clear water

Question 36

When turning off the natural gas supply to a structure,

Answer 36

close the valve by turning the tang until it is 90 degrees to the pipe.

Question 37

What is the minimum number of firefighters required to operate an attack line for interior structural operations?

Answer 37

2

Question 38

How can revolving doors impact fire fighting operations?

Answer 38

Prevent movement of hose or equipment into the building

Question 39

Which statement describes a fire in the incipient stage?

Answer 39

The temperature is only slightly above ambient in areas that the fire, plume, and ceiling jet directly affect.

Question 40

Tying in a ground ladder involves:

Answer 40

using a rope hose tool or safety strap to secure the ladder to a stationary object.

Question 41

Which SCBA component controls air flow from the cylinder when the regulator fails?

Answer 41

Bypass valve

Question 42

What action should be taken to protect fire hose in extremely cold temperatures when it is only being used intermittently at a fire?

Answer 42

Allow some water to flow through the nozzle when it is not being used in order to keep it from freezing.

Question 43

A donut hose roll is advantageous because:

Answer 43

the firefighter controls both couplings.

Question 44

Which tool or piece of equipment is a member of a fire attack team likely to carry?

Answer 44

hand light

Question 45

In a Type III construction building, the interior walls, columns, beams, floors, and roofs are completely or partially constructed of:

Answer 45

wood

Question 46

Fires involve a heat-producing chemical reaction between fuel and:

Answer 46

an oxidizer.

Question 47

The stage of fire development occurs when the heat release rate of the fire has reached its peak.

Answer 47

fully-developed

Question 48

A ladder belt is designed to:

Answer 48

secure a firefighter to a ladder while they are working from the ladder.

Question 49

How can a firefighter help ensure that they will not be affected by limitations caused by equipment that is in poor condition?

Answer 49

Frequent inspections and maintenance

Question 50

What should the fire department do when a hydrant is taken out-of­ service?

Answer 50

Place “out-of-service” tags on the hydrant