Live Fire Instructor (ch17)

Question 1

The movement of heat and smoke from the higher pressure with the fire area towards the lower pressure areas is known as:

A. the ceiling jet.
B. rollover.
C. the flow path.
D. the fire flow.

Answer 1

C. the flow path.

Question 2

An important consideration related to personal protective equipment is that:

A. toxins are absorbed into the PPE and then into the wearer.
B. PPE eliminates all hazards associated with firefighting.
C. improper use has very little effect on firefighter safety.
D. None of these are correct.

Answer 2

A. toxins are absorbed into the PPE and then into the wearer.

Question 3

The process by which the body regulates body temperature is called:

A. thermoregulation.
B. stroke volume.
C. thermal gradient.
D. thermal tolerance.

Answer 3

A. thermoregulation.

Question 4

The amount of blood pumped with each contraction of the heart is called:

A. stroke volume.
B. thermal gradient.
C. thermal tolerance.
D. thermoregulation.

Answer 4

A. stroke volume.

Question 5

After approximately 18 minutes of strenuous firefighting activity, by what percentage is the plasma volume reduced?

A. 15%
B. 20%
C. 25%
D. 30%

Answer 5

A. 15%

Question 6

When working under hot conditions, the human body can lose approximately how many liters of sweat per hour?

A. 1–2
B. 3–4
C. 5–6
D. 7–8

Answer 6

A. 1–2

Question 7

Which of the following is a severe heat emergency?

A. Heat cramps
B. Heat exhaustion
C. Heatstroke
D. Sweating

Answer 7

C. Heatstroke

Question 8

An instructor should anticipate which of the following hazards following sequential entries into a high-heat live fire area?

A. Increased core temperature
B. Low blood pressure
C. Hyperactivity
D. Decreased heart rate

Answer 8

A. Increased core temperature

Question 9

The temperature of the central part of the body is called the:

A. normal body temperature.
B. core temperature.
C. central temperature.
D. average temperature.

Answer 9

B. core temperature.

Question 10

After a period of strenuous firefighting, the stroke volume can decrease by:

A. 3–9%.
B. 13–30%.
C. 25–40%.
D. 35–50%.

Answer 10

B. 13–30%.

Question 11

For several hours after firefighting activity, there is increased clotting potential, which increases the risk of:

A. fatal arrhythmia.
B. low blood pressure.
C. high blood pressure.
D. core temperature elevation.

Answer 11

A. fatal arrhythmia.

Question 12

After participants finish firefighting activity, the body temperature:

A. drops immediately.
B. drops slowly over about an hour.
C. continues to rise.
D. only drops if active cooling is initiated.

Answer 12

C. continues to rise.

Question 13

Which cardiovascular disease risk factor increases the risk of CHD-related death the most?

A. Hypertension
B. Obesity
C. High cholesterol
D. Smoking

Answer 13

A. Hypertension

Question 14

Which NFPA standard has components of a health-related fitness program?

A. NFPA 1403
B. NFPA 1001
C. NFPA 1340
D. NFPA 1583

Answer 14

D. NFPA 1583

Question 15

When replenishing fluids lost due to sweating during training activity, the primary fluid ingested should be:

A. coffee.
B. soda.
C. water.
D. sports drinks.

Answer 15

C. water.

Question 16

Drinking caffeinated beverages during training exercises can:

A. improve hydration.
B. increase water loss.
C. increase cognitive ability.
D. decrease productivity.

Answer 16

B. increase water loss.

Question 17

Which of the following is an effective way to monitor your hydration status?

A. Using a urine color chart
B. Performing blood tests
C. Maintaining IV fluids
D. Measuring body temperature

Answer 17

A. Using a urine color chart

Question 18

The urine of a properly hydrated participant will:

A. be a dark color.
B. have a strong odor.
C. have no color.
D. be a light color.

Answer 18

D. be a light color.

Question 19

What causes heat-related illnesses?

A. The body’s excessive production of insulin
B. The body’s inability to maintain thermal balance
C. The use of blood pressure control medications
D. The overproduction of bile

Answer 19

B. The body’s inability to maintain thermal balance

Question 20

Which of the following decreases evaporative cooling and, therefore, the body’s ability too cool itself?

A. Air movement
B. Low humidity
C. High humidity
D. Low temperature

Answer 20

C. High humidity

Question 21

A participant is experiencing brief, recurrent, and excruciating pain in the muscles of the legs, arms, or abdomen. This person is most likely experiencing:

A. heat cramps.
B. heatstroke.
C. heat exhaustion.
D. heat rash.

Answer 21

A. heat cramps.

Question 22

What is the proper treatment for a participant suffering with heat cramps?

A. Nothing, this is not a serious issue
B. Instruct him/her to drink plenty of water
C. Stretch the affected muscles to relieve the cramps
D. Move to a cool area and provide sports drinks

Answer 22

D. Move to a cool area and provide sports drinks

Question 23

What activity is defined as an intervention designed to lessen the physical, physiological, and emotional stress of firefighting in order to improve performance and decrease the likelihood of on-scene injury or death?

A. Medical consultation
B. Incident scene rehabilitation
C. Physical examination
D. Physical fitness program

Answer 23

B. Incident scene rehabilitation

Question 24

Which of the following is a purpose of incident scene rehabilitation?

A. Decrease personnel in hot zone
B. Allow for cooling down
C. Demonstrate caring for personnel
D. Increase morale

Answer 24

B. Allow for cooling down

Question 25

What is the leading cause of line-of-duty deaths among fire fighters? A. Sudden cardiac event B. Motor vehicle accident C. Severe burn injury D. Falls

Answer 25

A. Sudden cardiac event

Question 26

___________________ is the process of decomposition of a material that, once it reaches its ignition temperature, will burn openly. A. Preburn B. Live fire C. Pyrolysis D. Dry run

Answer 26

C. Pyrolysis

Question 27

Which of the following is true regarding the burning characteristics of an equal volume of polyurethane versus wood? A. Polyurethane will generate half the BTUs of wood. B. Polyurethane’s rate of burning is roughly the same as wood. C. Polyurethane will generate 2–3 times the BTUs of wood. D. All of these are correct.

Answer 27

C. Polyurethane will generate 2–3 times the BTUs of wood.

Question 28

During live fire evolutions, when entering and exiting the structure, instructors must: A. complete the PAR. B. check the air supply. C. record the time. D. None of these are correct.

Answer 28

A. complete the PAR.

Question 29

What is the name of the verification by the person in charge of each crew or team that all assigned personnel are accounted for? A. Personnel accountability report B. Student roster C. Department roster D. Instructor roster

Answer 29

A. Personnel accountability report

Question 30

Which of the following is the most prevalent gas in smoke? A. Carbon dioxide B. Carbon monoxide C. Hydrogen D. Nitrogen

Answer 30

B. Carbon monoxide

Question 31

Smoke velocity is an indicator of the pressure of smoke and the heat present. Which of the following terms describes hot, agitated smoke? A. Laminar B. Turbulent C. Vent point ignition D. Deflagration

Answer 31

B. Turbulent

Question 32

As you ventilate a structure, the flames and heat will be pulled to: A. any new opening to seek oxygen. B. the highest point in the structure. C. the lowest point in the structure. D. Ventilation does not affect flow path.

Answer 32

A. any new opening to seek oxygen.

Question 33

The rate at which heat energy is generated by burning is called the: A. burning rate. B. pyrolosis rate. C. fire generation rate. D. heat release rate.

Answer 33

D. heat release rate.

Question 34

What is the usual relationship between BTU of a burning material and the smoke produced? A. The lower the BTU, the more smoke is produced B. The higher the BTU, the more smoke is produced C. The higher the BTU, the less smoke is produced D. There is no relationship.

Answer 34

B. The higher the BTU, the more smoke is produced

Question 35

What action should the instructor take when he notices the smoke becoming darker and hotter with rollover conditions? A. Cool the upper atmosphere B. Exit immediately C. Get lower D. Both cool the upper atmosphere and exit immediately

Answer 35

D. Both cool the upper atmosphere and exit immediately

Question 36

What is the name of the situation in which smoke that is at its ignition temperature and lacking oxygen ignites as it exits an opening in the structure? A. Flow path B. Vent point ignition C. Ventilation controlled D. Flashover

Answer 36

B. Vent point ignition

Question 37

What is an appropriate use of a thermal imager during a live fire training evolution? A. Determining whether the power is off B. Locating the gas meter C. Monitoring student location and reaction D. Monitoring personnel movement outside

Answer 37

C. Monitoring student location and reaction

Question 38

If a student cannot be located, what action must be taken? A. Stop the evolution and instruct the remaining students to search for the missing student. B. Continue the evolution and advise the instructor-in-charge to look outside for the missing student. C. Exit the structure immediately and declare a Mayday. D. Tell the remaining students to continue the evolution while you conduct a search for the missing student.

Answer 38

C. Exit the structure immediately and declare a Mayday.

Question 39

Vent point ignition is an indicator of impending: A. backdraft. B. flameover. C. flashover. D. explosion.

Answer 39

C. flashover.

Question 40

What is the condition in which unburned fuel from the fire accumulates in the ceiling layer to a sufficient concentration that it ignites and burns? A. Flashover B. Backdraft C. Flow path D. Flameover

Answer 40

D. Flameover

Question 41

What is a transition phase in the development of a compartment fire in which surfaces reach ignition temperature simultaneously and fire spreads rapidly throughout the space, resulting in full room involvement? A. Flashover B. Backdraft C. Flow Path D. Flameover

Answer 41

A. Flashover

Question 42

What is the movement of heat and smoke from the higher pressure within the fire area toward the lower pressure areas accessible via doors, window openings, and roof structures? A. Flashover B. Backdraft C. Flow path D. Flameover

Answer 42

C. Flow path

Question 43

What is the term for the total quantity of combustible contents of a fire area, including interior finish and trim? A. Combustible materials B. Burn area C. Fuel load D. Ignitable contents

Answer 43

C. Fuel load

Question 44

Which of the following terms describes a fire in which the heat release rate or growth is controlled by the amount of air available to the fire? A. Fuel- controlled fire B. Ventilation-controlled fire C. Area-controlled fire D. Smoke-controlled fire

Answer 44

B. Ventilation-controlled fire

Question 45

What is conduction? A. Heat transfer by circulation within a medium such as a gas or liquid B. Heat transfer to another body by direct contact C. Heat transfer by way of electromagnetic energy D. The movement of heat and smoke from high pressure to low pressure

Answer 45

B. Heat transfer to another body by direct contact

Question 46

What is radiation? A. Heat transfer by circulation within a medium such as a gas or liquid B. Heat transfer to another body by direct contact C. Heat transfer by way of electromagnetic energy D. The movement of heat and smoke from high pressure to low pressure

Answer 46

C. Heat transfer by way of electromagnetic energy

Question 47

The condition of unburned fuel from the originating fire accumulating in the ceiling layer to a sufficient concentration that it ignites and burns is called: A. flashover. B. backdraft. C. flameover. D. high fire.

Answer 47

C. flameover.

Question 48

Whenever possible, all clothing worn during a live fire training evolution should comply with: A. NFPA 1971. B. NFPA 1400. C. NFPA 1403. D. NFPA 1975.

Answer 48

D. NFPA 1975.

Question 49

What is the most prevalent by-product of combustion? A. Carbon dioxide B. Carbon monoxide C. Hydrogen cyanide D. Ethylene chloride

Answer 49

B. Carbon monoxide

Question 50

When introducing new fire fighters to live fire training evolutions, instructors must be prepared for: A. students to react incorrectly. B. sudden changes in fire conditions in accordance with the IAP. C. brief periods of rest between evolutions. D. evaluations of students immediately upon completion of the evolutions.

Answer 50

A. students to react incorrectly.

Question 51

Which of the following is a common reaction seen in new recruits during live fire training? A. Complete attention to instructor direction B. Confidence in their abilities C. Becoming lost or disoriented D. Slow, measured actions

Answer 51

C. Becoming lost or disoriented

Question 52

Prior to participating in live fire training evolutions, recruits must meet the job performance requirements of which NFPA standard? A. NFPA 1001 B. NFPA 1006 C. NFPA 1021 D. NFPA 1031

Answer 52

A. NFPA 1001