IFSTA 7 QUESTION BANK WITH
COMPLETE SOLUTIONS
Which product of combustion acts as a chemical asphyxiant by excluding oxygen from
the blood, leading to hypoxia of the brain and tissues?
A) Carbon dioxide (CO2)
B) Carbon monoxide (CO)
C) Aerosolized fuel particles
D) Hydrogen cyanide (HCN) - ANSWER-B
Combustion can occur within a range of concentration of fuel vapor and air; this range is
referred to as the:
A) vapor pressure range.
B) surface to mass range.
C) flammable (explosive) range.
D) oxidation (combustion) range. - ANSWER-C
Which statement describes the factor that MOST influences compartment fire
development?
A) Whether the fire is fuel-limited or ventilation-limited
B) Whether the fuel is cellulose-based or petroleum-based
C) Ratio of square footage to ceiling height of the compartment
D) Ambient temperature and wind speed outside the compartment - ANSWER-A
An extinguishing agent, such as dry chemical or Halon-replacement agent, terminates
the combustion reaction by:
A) cutting off the oxygen supply to the fuel.
B) interfering with the chemical chain reaction.
C) cooling the fuel below the ignition temperature.
D) reacting with the fuel to create a fire-resistant layer. - ANSWER-B
Materials that burn at normal oxygen levels will burn more intensely in _____
atmospheres.
A) flaming
B) nonflaming
C) oxygen-enriched
D) oxygen-deficient - ANSWER-C
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?
A) The SCBA was manufactured within the past five to ten years.
B) A rapid intervention crew (RIC) is rescuing a trapped or incapacitated firefighter.
, C) The firefighter filling the empty cylinder is wearing full structural personal protective
equipment.
D) A firefighter with a higher rank than the firefighter wearing the SCBA cylinder is
available to perform the refill. - ANSWER-B
What is a general safety precaution to take when refilling an SCBA cylinder?
A) Wear full structural fire fighting PPE.
B) Fill the cylinder as quickly as possible.
C) Perform a hydrostatic test on the cylinder.
D) Check the hydrostatic test date of the cylinder. - ANSWER-D
All PPE designed for structural fire fighting must meet the requirements of:
A) NFPA 1002.
B) NFPA 1006.
C) NFPA 1971.
D) NFPA 1981. - ANSWER-C
How can a firefighter help ensure that they will not be affected by limitations caused by
equipment that is in poor condition?
A) Proper facepiece fit testing
B) Repeated training with the SCBA unit
C) Frequent inspections and maintenance
D) Physical fitness and endurance training - ANSWER-C
Which SCBA equipment limitation would MOST directly impact a firefighter's ability to
navigate on scene?
A) Limited visibility
B) Decreased mobility
C) Low air cylinder pressure
D) Poor equipment condition - ANSWER-A
How can a firefighter overcome psychological limitations such as fear and
claustrophobia while wearing SCBA?
A) Proper fit testing
B) Exercise and a proper diet
C) Regular medical evaluations
D) Repeated training with the SCBA - ANSWER-D
Which piece of information must be included on the permanent compliance label inside
each piece of PPE?
A) Firefighter's name
B) Department name
C) Cleaning precautions
D) Wearing instructions - ANSWER-C
COMPLETE SOLUTIONS
Which product of combustion acts as a chemical asphyxiant by excluding oxygen from
the blood, leading to hypoxia of the brain and tissues?
A) Carbon dioxide (CO2)
B) Carbon monoxide (CO)
C) Aerosolized fuel particles
D) Hydrogen cyanide (HCN) - ANSWER-B
Combustion can occur within a range of concentration of fuel vapor and air; this range is
referred to as the:
A) vapor pressure range.
B) surface to mass range.
C) flammable (explosive) range.
D) oxidation (combustion) range. - ANSWER-C
Which statement describes the factor that MOST influences compartment fire
development?
A) Whether the fire is fuel-limited or ventilation-limited
B) Whether the fuel is cellulose-based or petroleum-based
C) Ratio of square footage to ceiling height of the compartment
D) Ambient temperature and wind speed outside the compartment - ANSWER-A
An extinguishing agent, such as dry chemical or Halon-replacement agent, terminates
the combustion reaction by:
A) cutting off the oxygen supply to the fuel.
B) interfering with the chemical chain reaction.
C) cooling the fuel below the ignition temperature.
D) reacting with the fuel to create a fire-resistant layer. - ANSWER-B
Materials that burn at normal oxygen levels will burn more intensely in _____
atmospheres.
A) flaming
B) nonflaming
C) oxygen-enriched
D) oxygen-deficient - ANSWER-C
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?
A) The SCBA was manufactured within the past five to ten years.
B) A rapid intervention crew (RIC) is rescuing a trapped or incapacitated firefighter.
, C) The firefighter filling the empty cylinder is wearing full structural personal protective
equipment.
D) A firefighter with a higher rank than the firefighter wearing the SCBA cylinder is
available to perform the refill. - ANSWER-B
What is a general safety precaution to take when refilling an SCBA cylinder?
A) Wear full structural fire fighting PPE.
B) Fill the cylinder as quickly as possible.
C) Perform a hydrostatic test on the cylinder.
D) Check the hydrostatic test date of the cylinder. - ANSWER-D
All PPE designed for structural fire fighting must meet the requirements of:
A) NFPA 1002.
B) NFPA 1006.
C) NFPA 1971.
D) NFPA 1981. - ANSWER-C
How can a firefighter help ensure that they will not be affected by limitations caused by
equipment that is in poor condition?
A) Proper facepiece fit testing
B) Repeated training with the SCBA unit
C) Frequent inspections and maintenance
D) Physical fitness and endurance training - ANSWER-C
Which SCBA equipment limitation would MOST directly impact a firefighter's ability to
navigate on scene?
A) Limited visibility
B) Decreased mobility
C) Low air cylinder pressure
D) Poor equipment condition - ANSWER-A
How can a firefighter overcome psychological limitations such as fear and
claustrophobia while wearing SCBA?
A) Proper fit testing
B) Exercise and a proper diet
C) Regular medical evaluations
D) Repeated training with the SCBA - ANSWER-D
Which piece of information must be included on the permanent compliance label inside
each piece of PPE?
A) Firefighter's name
B) Department name
C) Cleaning precautions
D) Wearing instructions - ANSWER-C
