Question 362Motor Plants - Assistant Engineer70% to pass
The temperature at which an adjustable bellows type thermostatic valve operates is determined by _______________.
AI Explanation
The correct answer is B) changing the spring compression opposing the bellows.
In an adjustable bellows type thermostatic valve, the temperature at which the valve operates is determined by the compression of the spring that opposes the expansion of the bellows. Increasing the spring compression raises the temperature setpoint, while decreasing the compression lowers the setpoint. This allows the operator to adjust the valve's temperature response as needed. The other answer choices are incorrect because they do not directly influence the valve's temperature setpoint in the same way as adjusting the spring compression.
Related Questions
#360 Cooling water pumps driven by direct reversing diesel engines are usually_______________. #361 The expansion tank for a diesel engine closed cooling system is designed to maintain a constant head on the system and _______________.#363 The thermostatic valve in the illustration is used for controlling the coolant temperature in a main propulsion diesel engine. Which of the following can be used to verify proper valve operation with the valve disassembled? Illustration MO-0079 #364 Diesel engine jacket water is used in the fresh water distillation process as the _______________.#365 A three-way thermostatic control valve regulates the diesel engine cooling water temperature by passing a portion of the water_______________.