Chapter 6

Question 1

What are the three basic fire streams?

Answer 1

Solid, fog, and broken stream

Question 2

What is a solid fire stream?

Answer 2

Hose stream that stays together as a solid mass, as opposed to a fog or spray stream. A solid stream is produced by a smooth bore nozzle and should not be confused with a straight stream.

Question 3

What is the formula for determining a flow from a solid stream nozzle?

Answer 3

GPM= 29.7 x d2 x √NP

Question 4

What is a fog stream?

Answer 4

Water stream of finely divided particles used for fire control

Question 5

What are the three basic types of master stream appliances?

Answer 5

Fixed monitors
Combination monitors
Portable monitors

Question 6

What is a piercing nozzle?

Answer 6

Nozzle with angled case hardened steel tip that can be driven through a wall roof or ceiling to extinguish hidden fire. Also known as piercing applicator nozzle puncture nozzle or penetrating nozzle.

Question 7

What is another name for cellar nozzles?

Answer 7

Distributor

Question 8

Counterforce directed against a person holding a nozzle or a device holding a nozzle by the velocity of water being discharged is called what?

Answer 8

Nozzle reaction

Question 9

What is the formula for calculating nozzle reaction for solid stream?

Answer 9

NR= 1.57 x d2 x NP

Question 10

What is the formula for calculating nozzle reaction for fog stream?

Answer 10

NR= 0.0505 x Q x √NP

Question 11

What degrees is the angle of a narrow fog pattern?

Answer 11

15 to 45

Question 12

What degrees is the angle of a wide fog pattern?

Answer 12

45 to 80

Question 13

What is a simple guidelines for the customary system of measurement that may be used to achieve approximate solid stream nozzle reaction on the fireground?

Answer 13

NR = Q / 3