Question 20General Subjects - Assistant Engineer70% to pass
The device shown in the illustration is used to _______________. Illustration GS-0029

AI Explanation
The correct answer is D) unload the cylinders of an air compressor.
The device shown in the illustration is an air compressor unloader, which is used to release the pressure in the cylinders of an air compressor when it is not in operation. This prevents the compressor from building up excessive pressure, which could damage the system.
The other answer choices are incorrect because: A) is not the function of this device, B) refers to a different type of component, and C) describes a function unrelated to an air compressor.
Related Questions
#18 What is the primary reason why the ballast water management regulations exist as applicable to vessels equipped with ballast tanks operating in U.S. waters? #19 After coolers are used with air compressors to _______________.#21 If all of the air charge has been lost from a ship service air receiver, the compressor mechanical unloading system will _______________.#22 Over pressurization of an air compressor intercooler is prevented by the _______________.#23 The air charge leaving an intercooler, or after cooler of an air compressor can be expected to be _______________.