CORRECT ANSWER : B - Questions & Answers 100% Verified Question : Wh...

IFSTA 7 Question Bank with Complete Questions & Answers 100% Verified

Question : Which product of combustion acts as a chemical

asphyxiant by excluding oxygen from the blood, leading to hypoxia of the brain and tissues?

• Carbon dioxide (CO2)
• Carbon monoxide (CO)
• Aerosolized fuel particles
• Hydrogen cyanide (HCN)

CORRECT ANSWER : B

Question : Combustion can occur within a range of

concentration of fuel vapor and air; this range is referred to as

the:

• vapor pressure range.
• surface to mass range.
• flammable (explosive) range.
• oxidation (combustion) range.

CORRECT ANSWER : C

Question : Which statement describes the factor that MOST

influences compartment fire development?

• Whether the fire is fuel-limited or ventilation-limited
• Whether the fuel is cellulose-based or petroleum-based
• Ratio of square footage to ceiling height of the

compartment

• Ambient temperature and wind speed outside the

compartment

CORRECT ANSWER : A

Question : An extinguishing agent, such as dry chemical or

Halon-replacement agent, terminates the combustion reaction

by:

• cutting off the oxygen supply to the fuel.
• interfering with the chemical chain reaction.
• cooling the fuel below the ignition temperature.
• reacting with the fuel to create a fire-resistant layer.

CORRECT ANSWER : B

Question : Materials that burn at normal oxygen levels will

burn more intensely in _____ atmospheres.

• flaming
• nonflaming
• oxygen-enriched
• oxygen-deficient

CORRECT ANSWER : C

Question : Which situation would likely be granted an

exception to the rule that prohibits filling an unshielded air cylinder while a firefighter is wearing the SCBA?

• The SCBA was manufactured within the past five to ten

years.

• A rapid intervention crew (RIC) is rescuing a trapped or

incapacitated firefighter.

• The firefighter filling the empty cylinder is wearing full

structural personal protective equipment.

• A firefighter with a higher rank than the firefighter

wearing the SCBA cylinder is available to perform the refill.

CORRECT ANSWER : B

Question : What is a general safety precaution to take when

refilling an SCBA cylinder?

• Wear full structural fire fighting PPE.
• Fill the cylinder as quickly as possible.
• Perform a hydrostatic test on the cylinder.
• Check the hydrostatic test date of the cylinder.

CORRECT ANSWER : D

Question : Which piece of information must be included on

the permanent compliance label inside each piece of PPE?

• Firefighter's name
• Department name
• Cleaning precautions
• Wearing instructions

CORRECT ANSWER : C

Question : Which type of breathing air source would be found

inside a high-rise building?