Question 479Motor Plants - Assistant Engineer70% to pass
Excessive mechanical and pulsating vibrations developed in a main propulsion diesel engine may be more likely to cause damage to an attached _______________.
AI Explanation
The correct answer is D) gas driven turbocharger because it has a wide speed range, high operating temperatures and close tolerances.
Excessive vibrations in a main propulsion diesel engine are more likely to cause damage to the gas driven turbocharger compared to the other components listed. This is because the turbocharger operates at high speeds, high temperatures, and has very tight clearances between rotating and stationary parts. The pulsating gas load and vibrations can disrupt the delicate balance and operation of the turbocharger, potentially leading to damage or failure.
The other options (scavenged air pump, reciprocating scavenge pump, and centrifugal cooling water pump) are less susceptible to vibration-related damage as they are designed for more steady-state operation and do not have the same high-speed, high-temperature, and tight-tolerance characteristics as the turbocharger.
Related Questions
#477 The power output of a turbocharged diesel engine will drop if the cooling water flow through the aftercooler is interrupted because the_______________.#478 Corrosion and grooving on the blading of an exhaust driven turbocharger is caused by certain components of residual fuel oils. These components are vanadium, sodium, and _______________. #480 If the speeder spring of a main propulsion diesel engine governor breaks while operating at full load, the engine RPM will_______________.#481 The hunting of a diesel engine may be caused by _______________.#482 If the operating speed of a diesel engine increases without an apparent change in the engine control settings, you may suspect a _______________.