Engine Company Operations

Question 1

Construction Types

Answer 1

I - Fire Resistive
II - Non-Combustible
III - Ordinary
IV- Heavy Timber
V - Wood Frame

Question 2

Fire Tetrahedron

Answer 2

1) Oxygen
2) Heat
3) Fuel
4) Chain Reaction

Question 3

Stages of Fire Growth

Answer 3

• Growth
• Fully Developed
• Decay

Question 4

Components of Size-Up

Answer 4

1. Pre Incident
2. Pre Arrival
3. On-Scene Report
4. Situation Report
5. Interior Size-Up
6. Ongoing Size-Up

Question 5

– _________ occurs when all surfaces and objects within a space have been heated to
their ignition temperature and simultaneously combust. _________can take place at the point
between the growth and fully developed stages of a fire.

Answer 5

Flashover

Question 6

A ________ is an explosion that occurs when oxygen enters an oxygen-deficient
smoldering fire. Conditions typically exist during a fire’s decay stage, after the fire compartment has consumed all available oxygen.

Answer 6

backdraft

Question 7

________takes place when pressure from the fire area pushes heated gases into uninvolved areas, causing flames to present in layers of smoke.

Answer 7

Rollover

Question 8

Warning signs of a possible backdraft include the following:

Answer 8

 dense smoke with no visible flame in a tightly closed compartment,
 black smoke pushing around closed doors or window frames,
 glass stained with smoke condensation and pulsating from the fire’s pressure, and
 the reversal of air movement pulling smoke back into a building through a doorway.

Question 9

Smoke leaving a structure has four inherent characteristics

Answer 9

volume, velocity, density, and color

Question 10

Viewed from outside a building, slow-moving smoke indicates the seat of the fire is …?

Answer 10

remote from
the exhaust point or that the fire compartment is still absorbing heat

Question 11

A fire’s incipient stage typically produces _____ _____ as the fuel off-gases moisture and water vapor.

Answer 11

white smoke

Question 12

Brown or black smoke signals an ?

Answer 12

underventilated fire

Question 13

________ involves a systematic look at the entire fire scene to ensure no further traces of fire exist. Firefighters should check voids closest to the seat of the fire first, working outward until
unburned material is reached.

Answer 13

Overhaul

Question 14

Threats to safety on the fireground primarily come from two categories:

Answer 14

 advanced fire conditions and
 collapse potential.

Question 15

Smoke can indicate a fire’s location, and _____ ________ represents the most reliable indicator of a fire’s location

Answer 15

smoke velocity

Question 16

The light smoke between the floor and the heavier ceiling smoke typically travels toward the?

Answer 16

fire’s seat.

Question 17

A __________ involves the coordinated and specific relocation of units
and their equipment from an area deemed untenable to a specific area deemed safe for continued operations.

Answer 17

withdrawal

Question 18

A fast and effective method of estimating the stretch involves the following formula:

Answer 18

Setback + width of building + length of building + 1/2 length (25 ft) per floor + 1 length at the point of attack

Question 19

Traditional hydraulic ventilation practices have indicated the nozzle firefighter should place ___ the nozzle from the ventilation outlet, with a wide fog stream covering ___ of the ventilation opening.

Answer 19

2 ft , 80%

Question 20

In a ______ _____ , personnel should apply a stream directly onto the burning materials until the fire darkens down

Answer 20

direct attack

Question 21

In an ________ ______, personnel direct the stream at the ceiling above the fire or the ceiling in the fire compartment. The ceiling will break the fire stream up into droplets, allowing steam conversion to displace the oxygen and absorb heat.

Answer 21

indirect attack,

Question 22

_ _____ _____ involves using an exterior master stream to knock down the main body of fire. Once darkened down, the engine company transitions to a handline for an interior offensive attack

Answer 22

A blitz attack

Question 23

If the engine officer finds the entrance door to the structure or immediate fire area open, they should?

Answer 23

close it to control the flow path

Question 24

Smoke can indicate a fire’s location, and _____ _______ represents the most reliable indicator of
a fire’s location

Answer 24

smoke velocity