Question 72Motor Plants - QMED70% to pass
In a diesel engine closed fresh water cooling system employing a radiator, proper water temperature can be obtained by_______________.
AI Explanation
The correct answer is D) adjusting the radiator louvers.
In a diesel engine closed fresh water cooling system with a radiator, the proper water temperature can be obtained by adjusting the radiator louvers. The radiator louvers control the airflow across the radiator, which in turn regulates the cooling of the circulating fresh water. By adjusting the louvers, the amount of airflow can be increased or decreased to maintain the desired water temperature, without the need for additional cooling components like a space heater or lube oil cooler.
The other options are incorrect because they do not directly adjust the radiator's cooling capacity. Passing cooling water through a space heater (A) or lube oil cooler (B) would not provide the necessary temperature control, and piping exhaust gases across the radiator front (C) would be an unconventional and inefficient method of cooling the system.
Related Questions
#70 A three-way thermostatic control valve regulates the diesel engine cooling water temperature by passing a portion of the water_______________. #71 The temperature at which an adjustable bellows type thermostatic valve operates is determined by _______________.#73 What would be considered a normal temperature increase between the inlet and outlet jacket cooling water of a medium or high-speed diesel engine operating at normal load? #74 An electric heater built into some smaller diesel engines is used to _______________.#75 According to the illustrated diesel engine cooling water systems diagram, what fluid is the low temperature central fresh water thermostat designed to maintain? Illustration MO-0129