Question 903Deck Safety70% to pass
Approximately how far could a straight stream of water reach if the fire hose pressure is reduced to 60 PSI?
AI Explanation
The correct answer is A) 50 feet.
At a reduced fire hose pressure of 60 PSI, the maximum reach of a straight stream of water would be approximately 50 feet. This is based on the general principle that water stream reach is directly proportional to the square root of the water pressure. Reducing the pressure from a typical 100 PSI to 60 PSI results in a reduction in reach by a factor of the square root of (60/100), or about 0.77, which corresponds to a maximum reach of around 50 feet.
The other options are incorrect because 150 feet (B) and 200 feet (D) would require significantly higher water pressures, while 100 feet (C) is an overestimate for a 60 PSI pressure scenario.
Related Questions
#901 What does the term "head" mean when applied to a fire pump? #902 Under normal firefighting conditions, approximately how far could a straight stream of water reach when the hose pressure is 100 PSI? #904 The difference in water spray pattern between the high-velocity tip and low-velocity applicator used with the all-purpose nozzle is due to _______________.#905 The spray of water in low-velocity fog will have _______________.#906 You are operating a fire hose with an applicator attached. If you put the handle of the nozzle in the vertical position you will _______________.