Nozzles

Question 1

Operating at a pressure up to 800 psi producing a stream with significant forward velocity but low volume

Answer 1

High pressure fog nozzle (8-15gpm)

Question 2

Until it reaches its destination, the fire stream is influenced by:

Answer 2

velocity
gravity
wind
friction with the air

Question 3

Reach of a fog stream is directly related to:

Answer 3

width
water particle size
wind
volume flowing

Question 4

Also called a penetrating nozzle 3-6’ hollow steel rod 1.5” dia.

Answer 4

Piercing nozzle (125 gpm)

Question 5

What affects the condition of a fire stream as it leaves the nozzle?

Answer 5

Operating pressure
nozzle design and adjustment
condition of the nozzle orifice

Question 6

Variable flow nozzle with the ability to change patterns while maintaing the same nozzle pressure

Answer 6

Automatic fog nozzle

Question 7

Flows only 1.5-3 gpm brass or steel with small impinginfg holes

Answer 7

Chimney nozzle

Question 8

Also known as a distibutor

Answer 8

Cellar nozzle

Question 9

GPM minimum for Master streams

Answer 9

350 gpm

Question 10

Designed to flow a specific volume of water on all stream patterns at a specific nozzle pressure

Answer 10

Constant flow fog nozzle

Question 11

Adjustable gallonage settings that flow selection at a rated nozzle pressure

Answer 11

Selectable gallonage nozzle