Which statement regarding solid streams is correct?

Which statement regarding solid streams is correct?

• A. Smooth-bore solid stream nozzles operate at lower pressures
• B. They require high pressures
• C. They produce fog
• D. They are inefficient

Answer: (A)

Solid streams come from smooth-bore nozzles and rely on a narrow, high-velocity jet that stays coherent as it travels. Because the stream remains intact rather than breaking into droplets, it can reach farther and penetrate better with moderate nozzle pressures. Fog patterns, on the other hand, need higher pressure to fragment water into a mist, so they aren’t produced by smooth-bore solid-stream nozzles. The statements that solid streams require high pressures or that they produce fog aren’t accurate for this type of nozzle. So, the correct description is that smooth-bore solid-stream nozzles operate at lower pressures compared to fog-producing patterns, which is why this option is the best choice.

Solid streams come from smooth-bore nozzles and rely on a narrow, high-velocity jet that stays coherent as it travels. Because the stream remains intact rather than breaking into droplets, it can reach farther and penetrate better with moderate nozzle pressures. Fog patterns, on the other hand, need higher pressure to fragment water into a mist, so they aren’t produced by smooth-bore solid-stream nozzles. The statements that solid streams require high pressures or that they produce fog aren’t accurate for this type of nozzle. So, the correct description is that smooth-bore solid-stream nozzles operate at lower pressures compared to fog-producing patterns, which is why this option is the best choice.