Prepare for the Lewith Tankers Exam 3 by diving into our comprehensive study tools. Use flashcards and multiple choice questions, each with detailed hints and explanations. Get set to excel in your exam!

Multiple Choice

What are signs of cavitation?

Cavitation shows up when local pressures fall below the liquid’s vapor pressure, causing vapor bubbles to form and then violently collapse. That collapse sends shock waves through the fluid and surrounding structures, leading to visible and audible consequences. The clearest signs are vibration, noise, and pressure fluctuations as these bubbles form and collapse and interact with the flow. Temperature rise in oil isn’t a defining symptom of cavitation, and although some heating can occur from other issues, it’s not what cavitation primarily produces. Stable flow and low noise would actually contradict cavitation, which disrupts smooth flow and creates loud, erratic signals. Increased dye color isn’t a diagnostic sign of cavitation either; dye helps visualize flow but doesn’t indicate cavitation by itself.

Cavitation shows up when local pressures fall below the liquid’s vapor pressure, causing vapor bubbles to form and then violently collapse. That collapse sends shock waves through the fluid and surrounding structures, leading to visible and audible consequences. The clearest signs are vibration, noise, and pressure fluctuations as these bubbles form and collapse and interact with the flow. Temperature rise in oil isn’t a defining symptom of cavitation, and although some heating can occur from other issues, it’s not what cavitation primarily produces. Stable flow and low noise would actually contradict cavitation, which disrupts smooth flow and creates loud, erratic signals. Increased dye color isn’t a diagnostic sign of cavitation either; dye helps visualize flow but doesn’t indicate cavitation by itself.