Size-up

Question 1

“What is size-up?

Answer 1

Size up is a continuing evaluation of all the problems and conditions that affect the outcome of the fire.

Question 2

’'’Who performs size-up’!

Answer 2

Size-up should be performed by all members, to varying degrees.

Question 3

When should size-up be performed?

Answer 3

Size-up should be begun upon the receipt of the alarm and continue until the incident has been controlled.

Question 4

Given the following alert message, what element of the size-up can you ascertain? **Attention, Engines 1, 2, and 3; Ladder 1; Chief 1: Respond to a house fire at 158 V? Main Street. Fire reported on the third floor. The time is 1430 hours.’

Answer 4

Three engines, one ladder, and one chief have been assigned.

Question 5

In your community, on which side of the street would the even-numbered homes be found? Select only one choice.

Answer 5

on the east side on a north-south street

Question 6

A rule of thumb for collapse anticipation in ordinary construction or wood-frame buildings is that if fire has heavily involved an area for ___ minutes, fire forces should be withdrawn.

Answer 6

20 minutes

Question 7

What are the main elements of the traditional 13-point or COAL WAS WEALTH size-up?

Answer 7

C-construction , O- occupancy, A- apparatus and personnel, L- life hazard, W- water supply, A-auxiliary appliances , S- street conditions, W- weather, E- exposures, A- area, L- location and extent of fire, T- time, H- height

Question 8

modernization of the traditional 13-point size-up would combine.___ and _____, and add ______to the listing.

Answer 8

area, height, hazardous materials

Question 9

What is the best method of reducing the life hazard before the fire?

Answer 9

installing a wet pipe sprinkler system

Question 10

Knowing the type of occupancy involved can tell an officer much about a given incident. Name five key variables strongly tied to occupancy.

Answer 10

1. potential life hazard
2. presence of large, open floor spaces or small rooms
3. presence of hazardous materials
4. degree of fire loading
   5, possible presence of truss construction (large, open floor areas)

Question 11

Statistics have shown that the greatest civilian life hazard occurs in which occupancy?

Answer 11

residential

Question 12

As far as construction affects the size-up, a fire involving a newer metal deck roof generally ______ the fire load.

Answer 12

increases

Question 13

Which class of construction is most resistant to collapse caused by fire?

Answer 13

older type Class 1

Question 14

What factors make the 20-minute rule of thumb for predicting collapse less than scientific?

Answer 14

unknown length of burn
potential use of accelerants
possibility of the presence of lightweight construction

Question 15

Three unusual circumstances may confuse your size-up of the height and area of the building. What are they?

Answer 15

buildings built on grade, wrap-around buildings, and interconnected buildings

Question 16

All but one of the following choices represents special firefighting problems due to their location. Which choice does not belong?

Answer 16

fire on the second floor of a 12-story high-rise hotel

Question 17

What three factors concerning smoke should be prime elements of a size-up?

Answer 17

location, color, movement

Question 18

A firefighter who needed to report fire extending into the attached row house marked with an X should report that she is in which building?
___________________________
I x I I I fire I I I
—————————————————

Answer 18

exposure 2B

Question 19

• Which of the following most correctly lists the minimum required fire flow for each occupancy below, expressed in gpm per 100 sq ft, in a modern, non-vented fire situation?

Answer 19

private home: 15, stationery store: 35, mattress factory: 60 (gpm/ 100 sq ft)

Question 20

Which of the following is not a type of auxiliary appliance?

Answer 20

Dry chemical fire extinguisher

Question 21

Complete the following descriptions of the effects that weather can have on firefighting.

Answer 21

• high heat and humidity rapidly fatigue Firefighters
• Below freezing temperatures result in Slow operations and cause mechanical failure
• High winds can drive attack crews off of a floor or force fire past defensive measures.

Question 22

the event a department encounters a sewer trench in the fire block between the roadway and the fire building, the __ should enter the block while the _____remains out at the intersecting street.

Answer 22

aerial device, pumper

Question 23

On a hot, humid day, you are the incident commander at a fire in a two-story Class 5 frame house with a cellar. Your first attack hoseline has entered the structure and has knocked down a lot of fire. The crew returns to the street with their air cylinders depleted, and the officer approaches to inform you that the main body of the fire has been knocked down, but there is still debris smoking that needs overhauling. You consult your dispatcher and find that you are 20 minutes into the alarm. What is the most correct order to issue?

Answer 23

Have a fresh unit enter the structure to complete the overhaul.

Question 24

All of the following are advantages of the time mark system except for which choice?
A. It avoids tunnel vision.
B. It refocuses the IC’s attention on the elapsed time of burn.
C. It forces the IC to evaluate what progress is being made.
D. It determines whether a life hazard is present.

Answer 24

D. It determines whether a life hazard is present.

Question 25

Which of the following factors is responsible for the destruction of more buildings than any other construction impact
A. the degree of compartmentation
B. the degree the building contributes to the fire load
C. presence of hidden voids
D. the ability to resist collapse

Answer 25

C. presence of hidden voids