TB7 Large Spray Streams

Question 1

Physical differences between straight and spray streams?

Answer 1

Size of water droplets
Shape of stream
Effective reach

Question 2

Disadvantages of spray streams?

Answer 2

Less reach
Easily disturbed by drafts
Ventilation and wind may reduce reach/effect
Hot fires may create steam

Question 3

Advantages of spray stream

Answer 3

Greater surface area
More efficient
Droplets convert to steam easier
Used for shielding from heat
Greater coverage with less movement
Hand lines are more easily managed
Used more effectively on flammable liquid fires