Turning the black tip changes the spray pattern.

Turning the black tip changes the spray pattern.

• A. TRUE
• B. FALSE
• C. ONLY WHEN ENGINE RUNNING
• D. ONLY AT CERTAIN PRESSURES

Answer: (A)

The idea being tested is that nozzle tips control how a liquid is distributed as it exits. Turning the black tip changes the exit geometry, which determines how the fluid breaks up into droplets and how wide the spray travels. Different tip positions produce different patterns—narrow solid streams, wider cones, or fine mists—so adjusting the tip directly changes the spray pattern. This change is a property of the nozzle itself, not dependent on the engine running; the actual appearance can be influenced by pressure, but the act of turning the tip is what creates the pattern change. So the statement is true.

The idea being tested is that nozzle tips control how a liquid is distributed as it exits. Turning the black tip changes the exit geometry, which determines how the fluid breaks up into droplets and how wide the spray travels. Different tip positions produce different patterns—narrow solid streams, wider cones, or fine mists—so adjusting the tip directly changes the spray pattern. This change is a property of the nozzle itself, not dependent on the engine running; the actual appearance can be influenced by pressure, but the act of turning the tip is what creates the pattern change. So the statement is true.