Reciprocating compressor - Study guides, Class notes & Summaries

Z-51 EXAM 2024 Updated with Correct Solutions How do automatic expansion valves work? - Answer -Evaporator pressure closes the valve and spring pressure opens the valve. When will a faulty check valve cause the most damage? - Answer -On startup. What will happen if a TEV'S sensing bulb insulation wears off of the suction line in an 85 F Degree room? - Answer -You will flood the evaporator. What can a clogged pump strainer cause? - Answer -A reduction or loss in water flow which will lead ...

3B2 Power Engineer Exam Practice The disadvantages of a gas turbine are: 1. High cost of manufacture 2. High levels of noise pollution are produced 3. Low thermal efficiency 4. Requires many auxiliaries to be efficient A. 1, 2, 3 B. 1, 3, 4 C. 2, 3, 4 D. 1, 2, 4 E. 1, 2, 3, 4 - E The most common process method of refrigeration is: Select one: A. Absorption B. Lithium bromide C. Water vapor D. Vapor compression or mechanical E. Ammonia compression system - D To facilitat...

Z-51 REFRIGERATION TEST QUESTIONS AND ANSWERS 100% VERIFIED. Efficiency of the refrigerant cycle is affected by the operations of the condenser. Of the following, a more efficient centrifugal compressor operation results from: - correct answer. Lowering the condensing pressure The heat removed from the refrigerant in a condenser is: - correct answer. Sensible and latent heat The refrigerant unit that you have been assigned to is being taken out of service for a major repair....

Written Z51 Questions And Answers Latest Top Score. The efficiency of the refrigerant cycle is affected by the operation of the condenser. of the following. a more efficient centrifugal compressor operation results from: - correct answer. Lowering the condensing pressure The heat removed from the refrigerant in a condenser is: - correct answer. Sensible and latent heat The refrigerant unit that you have been assigned to is being taken out of service for a major repair. you hav...

Refrigeration license review Exam Questions With Verified And Updated Solutions. At the condenser refrigerant enters as - answerhigh pressure gas and leaves as high pressure liquid If you were running three compressors, - answerhighly superheated vapor describes the state of the refrigerant leaving the third compressor the state of refrigerant as it leaves the compressor is (blank) and as it leaves the condenser is (blank) - answercompressor-super heated vapor condenser- warm sub-cooled...

HVAC UNIT 3 REVIEW TEST WITH COMPLETE SOLUTIONS Ice melts in ice boxes because a. heat flows through the insulated walls. b. heat flows through the doorway when it is opened. c. heat is moved into the box when warm food is placed in it. d. All of the above. D High-temperature refrigeration is that produced by a. heat from a furnace. b. an air-conditioning system, c. the vegetable cooling system of a refrigerator. d. the freezer section of a refrigerator. B A ton of refrigerat...

HVAC FINAL Exam Questions With Verified Solutions. Which of the following would have the greatest effect on the heat content of the refrigerant? A) The refrigerant's humidity B) The refrigerant's state C) The refrigerant's temperature D) The refrigerant's pressure - answerCorrect Answer B) The refrigerant's state A mechanical refrigeration system cools a room by: - answerRemoving heat from the room. The four types of cooling mechanisms are: - answerEvaporative, Thermoelectric, Ab...

FDNY A-35 EXAM | QUESTIONS & 100% CORRECT ANSWERS (VERIFIED) | LATEST UPDATE | GRADEA+ Air compressors power... Correct Answer: (1) industrial equipment and (2) construction tools Examples of equipment powered by air compressor Correct Answer: pneumatic wrenches, lifts in auto service stations, paint spray booths Air compressors enable... Correct Answer: (1) efficient repair of all types of vehicles; and (2) facilitate their safe operation on public thoroughfares Permit is requir...

Heat which causes a change in temperature of a substance is called : Sensible Heat Heat added to a substance without a rise in temperature is called : Latent Heat Heat added to refrigerant in a vapor state after the evaporation process is called : Superheat A scroll compressor moved refrigerant by means of : Involute spirals The movement of heat by way of fluid is called : Convection The movement of heat through a solid object is called : Conduction 2 | P a g e The standard unit for...

Compressors and Blowers Test Questions with All Correct Answers types of reciprocating compressors - Answer-single-stage- uses a single cylinder and compresses once mult-istage - compresses more than once depending on the number of cylinders Filters - Answer-placed before the inlet pipe to trap dust and other foreign materials from entering compressor, use cloth or metal material lubricating systems - Answer-lube oil system- low pressure, oil resevoir, pump, filters, coolers forced...