JONES & BARTLETT: INCIDENT SAFETY OFFICER

Question 1

According to Jones & Bartlett’s Fire Department Incident Safety Officer, smoke leaving the structure has four key attributes, they are:
A) Amount, Rate, Direction, and Colour
B) Volume, Velocity, Density and Colour
C) Volume, Velocity, Direction, and Colour
D) Amount, Rate, Direction, and Intensity

Answer 1

B) Volume, Velocity, Density and Colour

Question 2

According to Jones & Bartlett’s Fire Department Incident Safety Officer, hostile event warning signs that include: yellowish-gray smoke emitting from cracks and seams with bowing black-stained windows along with sucking and puffing from the cracks and seams would indicate a:

A) Flashover
B) Explosive growth phase
C) Backdraft
D) Smoke explosion

Answer 2

C) Backdraft

Question 3

According to Jones & Bartlett’s Fire Department Incident Safety Officer, hostile event warning signs that include: smoke that is being trapped in a separate space above the fire, signs of growing fire and signs of smoke starting to pressurize would indicate a:
A) Flashover
B) Flame-over
C) Backdraft
D) Smoke explosion

Answer 3

D) Smoke explosion

Question 4

According to Jones & Bartlett’s Fire Department Incident Safety Officer, hostile warning event signs that include: turbulent smoke flow that has filled a compartment, vent-point ignition and a rapid change in smoke volume and velocity (getting worse in seconds)
would indicate a:
A) Flashover
B) Explosive growth phase
C) Backdraft
D) Smoke explosion

Answer 4

A) Flashover

Question 5

According to Jones & Bartlett’s Fire Department Incident Safety Officer, ____________ occurs when smoke reaches sustaining temperatures that are above the fire point of prevalent gases. The gases can suddenly ignite when touched by an additional spark or flame. Fire spread changes from flame contact across content surfaces to fire spread through the smoke. This hostile event is known as a:
A) Flashover
B) Backdraft
C) Flame-over
D) Smoke explosion

Answer 5

C) Flame-over

Question 6

According to Jones & Bartlett’s Fire Department Incident Safety Officer, ___________ occurs when oxygen is introduced into a closed, pressurized space where fire products are above their ignition temperature. This hostile event is known as a:
A) Flashover
B) Backdraft
C) Flame-over
D) Smoke explosion

Answer 6

B) Backdraft

Question 7

According to Jones & Bartlett’s Fire Department Incident Safety Officer,
_____________ occurs when air is introduced to a ventilation-limited fire. It can include smoke flame-over in flow paths and flashover of individual rooms that are heat saturated. This hostile event is known as:

A) Explosive growth phase
B) Backdraft
C) Flame-over
D) Smoke explosion

Answer 7

A) Explosive growth phase

Question 8

According to Jones & Bartlett’s Fire Department Incident Safety Officer, ______occurs when radiant heat reflected within a room or space. All surfaces reach their ignition temperature at virtually the same time due to rapid heat buildup in the space. This hostile event is known as:
A) Flashover
B) Explosive growth phase
C) Backdraft
D) Flame-over

Answer 8

A) Flashover

Question 9

According to Jones & Bartlett’s Fire Department Incident Safety Officer, which of the
following about smoke characteristics is incorrect?
A) The thicker the smoke, the more explosive it is
B) Faster smoke is further from the seat of the fire
C) Fire that emits very little visible smoke is hot, well ventilated and clean-burning
D) Black smoke indicates hot smoke, regardless of material involved

Answer 9

B) Faster smoke is further from the seat of the fire

Question 10

According to Jones & Bartlett’s Fire Department Incident Safety Officer, which of the following about smoke characteristics is incorrect?

A) Thick black smoke in a compartment reduces the chance of life sustainability
B) Smoke can either be turbulent or laminar
C) Smoke cannot be used to help find the location of the fire in a building
D) Smoke follows the path of least resistance

Answer 10

C) Smoke cannot be used to help find the location of the fire in a building

Question 11

According to Jones & Bartlett’s Fire Department Incident Safety Officer, you are onscene and notice brown smoke emanating from the structure. What does this indicate to you?

A) Early heating or ‘filtered’ smoke
B) Warning sign of impending collapse in lightweight wood buildings
C) Warning sign of impending Backdraft
D) A proper air mixture has been achieved for a smoke explosion

Answer 11

B) Warning sign of impending collapse in lightweight wood buildings

Question 12

According to Jones & Bartlett’s Fire Department Incident Safety Officer, you are onscene and notice brown smoke emanating from the structure. What does this indicate to you?

A) A proper air mixture has been achieved for a smoke explosion
B) Early heating or ‘filtered’ smoke
C) Warning sign of impending backdraft
D) Usually a sign that a contents fire is transitioning into a structure fire

Answer 12

D) Usually a sign that a contents fire is transitioning into a structure fire

Question 13

According to Jones & Bartlett’s Fire Department Incident Safety Officer, which of the following about smoke characteristics is incorrect?
A) Smoke that is getting faster (and turbulent), thicker, and darker is a sign that things are getting worse
B) No firefighters should be in black fire; they should immediately cool and withdraw
C) Colour can be filtered by distance or resistance, so rely on velocity for the true heat story
D) Turbulent smoke that fills a compartment is a warning sign of a smoke explosion

Answer 13

D) Turbulent smoke that fills a compartment is a warning sign of a smoke explosion

Question 14

According to Jones & Bartlett’s Fire Department Incident Safety Officer, determining whether a fire is a ‘contents’ or ‘structure’ fire is imperative. Which of the following fires would not be considered a content fire that could become ‘structural’?
A) A content fire in unfinished basement
B) Fire in concealed spaces
C) A mattress fire in a bedroom
D) Attic fire

Answer 14

C) A mattress fire in a bedroom

Question 15

According to Jones & Bartlett’s Fire Department Incident Safety Officer, when
establishing a collapse zone, the rule is to create a zone that is ____ to _____ times the
height of the structure.
A) 1 to 2 times the height of the structure
B) 1.5 to 2 times the height of the structure
C) 1.5 to 3 times the height of the structure
D) 2 to 3 times the height of the structure

Answer 15

C) 1.5 to 3 times the height of the structure