Which risk increases substantially if a ship's propeller operates extensively in shallow water?

💡 Explanation

When a propeller operates in shallow water, flow restriction increases its rotational speed because there is less water for the propeller to 'push' against, promoting tip vortices, leading to cavitation and accelerated erosion. Therefore accentuated propeller cavitation results, rather than corrosion, rudder issues, or cylinder head temperature increase, which do not directly involve flow restriction.

• Which outcome occurs in pneumatic systems when quick exhaust valve malfunctions and sticks closed after actuation?
• Which outcome occurs when excessively high exhaust backpressure impacts a turbocharger’s geometry?
• Which risk increases when a phase-locked loop's (PLL) loop filter bandwidth in a radio receiver is excessively widened?
• Which outcome arises when an HVAC system evaporator's frost layer becomes overly thick?
• Which mechanism ensures precise flow control of hydraulic fluid in automated machinery using proportional valves?
• Which outcome complicates trajectory control when a robotic arm's joint encounters a kinematic singularity?