6 Size Up For Truck Operations

Question 1

pg 150

Although it can be described in many different ways, Size up is simply the process:

Answer 1

of making careful observations and drawing reasonable conclusions from them.

Note: Size-up is an ongoing process on the fire ground until the incident is terminated.

Question 2

pg 150

In general the Size up of a structure fire begins with:

Answer 2

Preincident familiarization and planning long before the fire is reported.

Size-up is an ongoing process on the fire ground until the incident is terminated.

Question 3

pg 150
Pre-incident planning on a particular building, firefighters should consider the following:
1. building factors (4) 
2. Water Supply(2)
2. occupancy factors (2)
4. Resourses (3)

Answer 3

1. -Building factors
  Size
  Construction
  Age, condition
  Access
-2. Water supply
 availability 
capability
3-Occupancy info
  Life safety
  Hazards
4-Resources
needed
availability 
capability

Question 4

pg 152

Size up for a structure fire typically starts when

Answer 4

Initial dispatch.

fire fighters begin to develop a mental image of the problem with which they are confronted on the information received in the initial dispatch.

Question 5

pg 152
Size-up for a structure fire incident typically start with the initial dispatch. Size up factors to consider when responding: (4)

Answer 5

• Type of incident
• Location
• Time- Work, sleep, school, weekend or day, holiday
• Weather

Question 6

Pg 152
Size up for a structure fire incidnet typically starts with the initial dispatch. Factors that are the most important while responding: (4)

Answer 6

• type of incident
• location of incident
• time
• weather

note: of these factors, the time of day, day of week, season of the year and weather are especially critical.

Question 7

pg 152

At night, a house and business life hazard occupancy are

Answer 7

People sleeping or living in home

Business probably closed, no life hazard unless apt above

Question 8

Pg 152 Time of day can effect response by

Answer 8

Changing response time based on pedestrian or vehicle traffic or construction.

Question 9

pg 153

Day of week affects size up because

Answer 9

Some places are only open on weekdays, evenings, or are busier on weekends, maybe closed Sunday

Question 10

pg 153-154

Seasons affects size up because

Answer 10

• Seasons may have decorations,
• increased traffic,
• increased fire load or
• people other than usual at houses or locations

Question 11

pg 155
The size-up on arrival includes certain basic factors that need to be addressed and questions that need to be answered.
Size up factors on arrival:

Answer 11

What happened? Fire, explosion, lightning
What is happening now? Read fire smoke and building
What is likely to happen? Fire behavior, building collapse
Are resources on scene and en route sufficient? Need more?

Question 12

pg 155
After a report on condition has been transmitted, an IAP developed, and on-scene resources deployed, fire fighters must continue to monitor fire and building conditions and evaluate the effectiveness of control efforts.
Following size up factors to consider during fire suppression

Answer 12

What effect have initial resources had on fire
Are more resources needed
Are different tactics needed

Question 13

IC must consider these during initial size up (3)

Answer 13

• Is immediate intervention needed to save lives
• What are the risks to firefighter and other responders.
• Are resources immediately available or will their response be delayed

Question 14

pg 156

Niosh recommends size up to include the following

Answer 14

Fire size and location
Length of time fire burning
Conditions on arrival
Size of building
Age of building
Presence of combustibles
Occupancy
Renovations or modifications
Previous known fires
Dead loads that may affect structural integrity
Adjacent exposures
Resources at scene or available

Question 15

Proper size up greatly reduces the chances of

Answer 15

Firefighter injuries or death

Question 16

Smoke is the result of

Answer 16

Incomplete combustion and is considered unburned fuel

Question 17

pg. 158
When analyzing smoke, firefighters should look for certain common characteristics.
The most common characteristics of smoke are:

Answer 17

Volume
Color and density
Air flow (pressure)

Question 18

In general the greater the volume of smoke the bigger

Answer 18

And more intense The fire is

Question 19

Black smoke indicates what is burning

Answer 19

Petroleum rubber or plastics

Question 20

pg158

Light grey yellow or brown smoke means

Answer 20

Wood and ordinary combustibles

Question 21

If smoke and gasses are confined in a fire it builds up what

Answer 21

Pressure

Question 22

Higher the pressure of smoke the greater

Answer 22

The smoke movement, pressure equals force and speed

Question 23

Older brick buildings, also knows as unreinforced masonry, trap

Answer 23

Heat and smoke inside and are prone to wall collapse

Question 24

pg 162

To know what has been renovated and changed, how can ff be kept up to date

Answer 24

Frequent or regular pre plans

Question 25

This type of fire may be unaffected by vertical ventilation efforts

Answer 25

Fire burning between drop ceiling and actual ceiling.

Question 26

pg 162
If a firefighter is crawling in a smoke filled Victorian home and can touch the ceiling with a 6’ pike pole what is he touching

Answer 26

Probably touching a drop or false ceiling

Question 27

pg 164

In an attic fire, what allows air in, feeding the fuel but also provides an exit for products of combustion.

Answer 27

Attic vents

Question 28

pg 165

Attic fires in large commercial attics can be difficult to locate because

Answer 28

The smoke may travel a considerable distance before venting through an opening. Fire may be far from an opening

Question 29

pg 165

A basement fire can be hidden until floor collapse in what type of floor

Answer 29

Lightweight concrete

Question 30

pg 165-166
Typically the living room adn kitchen are on the ground floor and the bedrooms are on an upper floor, especially during the late night or early morning hours, may trap those sleeping in rooms on an upper floor.
Most common fire spread issue in townhouses:

Answer 30

Shared open stairway from bottom to top floor.

because their primary exit (the Stairway) acts as a chimney that channels fire and smoke upward into the upper floor hallway.

From a life safety standpoint, laddering the upper floor window, front and rear is usually a very high priorty

Question 31

pg 166

from a life safety stand point, what is the highest priority for laddering a town home?

Answer 31

Ladder the upper floor windows front and rear

Question 32

pg 166

Fire spread concerns in townhouses

Answer 32

Fire in lower floor can spread fast to upper ones because of open stairway, exposing the bedrooms

Question 33

pg 166
From the standpoint of size-up, victorians contain one or more of each of the undesirable characteristics already discussed. While many of these ornate buildings are still single family dwellings or have been converted to office or retail space, many of the larger ones have been:

Answer 33

converted to apartment houses.

Victorians are typically of balloon-frame construction which lends itself to rapid fire spread.

Question 34

pg 166
from the standpoint of size-up victorians contain one or more of each of the undesirable characteristics already discussed. they have many features that make them vulnerable to fires starting and spreading rapidly. These features include (4)

Answer 34

Remodeling void spaces,
balloon frame,
substandard wiring
walls made dehydrated wood

Question 35

pg 168

Fire during office hours inside office buildings are often small because

Answer 35

They are discovered early by staff or possibly extinguished prior to arrival

Question 36

pg 168
Whether single-story or high-rise, fires in office buildings can often be difficult to accurately size up. If a small fire is well-contained that has smoldered for many hours- may also pose a potential:
An office building or warehouse filled with smoke may not indicate a large fire. It May be

Answer 36

Backdraft situation.

Question 37

pg 169
As described in the case histories cited earlier, one of the things that firefighters must assess in their initial and ongoing size-up of a burning building it is collapse potential. Making such an assessment involves both of the foregoing factors:
Assessing collapse potential involves determining:

Answer 37

age of the building
type of construction
effects of the fire

Question 38

p.153
Because of differences in response times and differences in occupant loads, the need for laddering buildings and conducting search and rescue ops may increase or decrease because of the?

Answer 38

Day of the week

Question 39

p. 158 Volume

+Some __________ produce large volumes of smoke from relatively small fires

Answer 39

Petroleum Products

Question 40

p.160

+Firefighters must not base their size up on?

Answer 40

Any single observation

Question 41

p.162

+A second roof constructed over an existing roof that can greatly hinder FF’s efforts to vertically ventilate is called?

Answer 41

Rain Roof

Question 42

p.165
+Built of fire resistive materials usually extending from the foundation up to and through the roof, designed to limit fire spread.

Answer 42

Fire Wall

Question 43

p.166 Townhomes
+Most common fire spread problem related to typical townhouse design and allows fire to spread from ground floor to upper floor?

Answer 43

Open Stairway

Question 44

p.167

+Single family residences that are between 5,000 and 10,000 sq ft or larger are referred to as?

Answer 44

Large Dwellings

Question 45

p.171
+If facilities that house hazardous materials are not round the clock operations, what is a high priority for firefighters?

Answer 45

Obtaining and maintaining emergency call lists