Question 81Refrigeration & AC - Assistant Engineer
70% to passA device used to hold open the refrigeration compressor suction valve during starting to reduce the compression load is called what?
Acylinder unloader
Brelief valve
Csuction line bypass
Ddischarge line bypass
AI Explanation
The correct answer is A) cylinder unloader. A cylinder unloader is a device used to hold open the refrigeration compressor suction valve during starting to reduce the compression load. This allows the compressor to start more easily by reducing the initial load on the system. The other options are incorrect because: B) A relief valve is used to relieve excessive pressure in the system, not to assist with compressor starting. C) A suction line bypass would bypass the compressor entirely, not just hold open the suction valve. D) A discharge line bypass would not affect the suction side of the compressor.
Related Questions
Q150:Alkyl benzene ISO 32 cSt synthetic refrigerant oil is miscible and suitable to u... Q131:If a refrigeration compressor had developed a slightly high suction pressure acc... Q58:In addition to the indicated gauge pressure, what other information is presented... Q42:The fluid used as a source of actuating power against the underside of the unloa... Q29:Which of the following illustrated expansion valves is designed to maintain a co...
Ready to test your knowledge?
Take a Refrigeration & AC - Assistant Engineer Practice ExamOfficial Resources