Chp 5 Hose nozzles and flow rates

Question 1

Generally, flows less than 350 gallons per minute (gpm) are used with _____, while greater flows are considered master streams.

Answer 1

handlines

Question 2

Solid stream handline nozzles should generally operate at ______ at the discharge

Answer 2

50 PSI

Question 3

The approximate horizontal reach of a smooth bore can be calculated by using the formula

Answer 3

R=1/2p+26.
R= reach (ft) p = pressure (psi)

Question 4

_______break water into fine, evenly divided droplets by driving several jets of water together at an angle.

Answer 4

Impingement fog nozzles

Question 5

_______are a type of variable flow nozzle that can change patterns while maintaining nozzle pressure

Answer 5

Automatic fog nozzles

Question 6

Master stream nozzles can deliver water flow in excess of ________ and must be properly secured for safe operation

Answer 6

350 gpm

Question 7

Smooth bore streams generally operate at ______ of nozzle pressure, while fog appliances generally operate at________. pg193

Answer 7

80 psi 100 psi