Question 48General Subjects - QMED70% to pass
The unloading system on an air compressor will _______________.
AI Explanation
The correct answer is D) allow the motor to turn the compressor opposed only by friction.
The unloading system on an air compressor is designed to reduce the compressor's load when starting, which allows the motor to turn the compressor opposed only by the friction of the mechanical components. This reduces the startup load and allows the compressor to reach operating speed more easily. The other options are incorrect because the unloading system does not increase compressor operating speed, reduce frictional load during operation, or increase discharge pressure on demand - its primary function is to facilitate an easier startup by reducing the initial load on the compressor.
Related Questions
#46 The control of exhaust temperature on a solid waste/sludge incinerator is critical. How is this temperature normally controlled? #47 One of the functions of the component labeled "E", shown in the illustration, is to _______________. Illustration GS-0119 #49 Which one of the following is a difference between a typical relief valve and a typical safety valve? #50 The air compressor shown in the illustration, when used aboard a vessel is typically operated as _______________. Illustration GS-0119 #51 The primary function of the device illustrated is to _______________. Illustration GS-0029