Coast Guard Exams
Question 20General Subjects - Assistant Engineer70% to pass

The device shown in the illustration is used to _______________. Illustration GS-0029

Diagram for question 20
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.