Eng Co Fire Ops

Question 0

What is radiation

Answer 0

Travel of heat through space, no material substance required.
Same as light-straight lines, unless blocked it’s even in all directions.

Question 1

I regard to fire spread what is convection

Answer 1

The travel of heat through the motion of heated matter

Question 2

What is greatest cause of exposure fires?

Answer 2

Radiation of heat

Question 3

What is conduction

Answer 3

The travel of heat through a solid body.

Question 4

What is flashover

Answer 4

The ignition of combustibles in an area heated by convection radiation or both.

Question 5

8 basic operations of engine companies

Answer 5

Rescue, water supply, initial attack lines, backup lines, exposure, heavy stream development, tactical use of protective systems, overhaul

Question 6

Positioning of a particular unit at a fire depends on what 4 things?

Answer 6

Fire structure, water supply, response pattern and size/location

Question 7

The difference between static and residual pressure will indicate how many more lines can be supplied by the water main.
How many more with 5, 10, 15%

Answer 7

One with 5% two with 10%, three with 15%

Question 8

If an increase in rpms is not accompanied by an increase in discharge pressure…?

Answer 8

The pump is at true capacity.

Question 9

Choice of initial attack lines are affected by:

Answer 9

Size/location of fire and type/condition of building, intended use of line, personnel available to operate line.

Question 10

Three types of fog nozzles

Answer 10

Constant flow, variable flow and the “so-called” automatic nozzle

Question 11

Three things to remember about backup lines

Answer 11

Larger and more gpm, solid stream, backup crew ready (rit)

Question 12

What is an exposure hazard

Answer 12

A condition that will promote the spread of fire if a fire should start in or reach that area.

Question 13

To be effective, heavy stream or master stream require what gpm’s

Answer 13

400-2000

Question 14

Solid stream master streams operate at what psi?

Answer 14

80

Question 15

Fog nozzles are intended to operate at what psi?

Answer 15

100

Question 16

Code requirement for standpipe diameter pipe

Answer 16

4 inches and 6in for buildings over 100ft

Question 17

Define dry system

Answer 17

Vertical pipe or riser running up through or along the outside of a building.

Question 18

Modern codes normally require that a water supply meet one of the following criteria.

Answer 18

Min flow of 250gpm at a residual pressure of 65psi on the roof.
A min pressure of 40psi on a 1 1/8 tip connected to 100ft of 2 1/2 hose attached to highest outlet on roof.

Question 19

Wet standpipe may be supplied by one or more methods

Answer 19

Gravity tank, city water main, pressure tank, private supply with pump

Question 20

Four basic types of sprinkler systems

Answer 20

Wet, dry, preaction and deluge