Centrifugal compressor - Study guides, Class notes & Summaries

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...

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...

FDNY A-35 EXAM 2024 WITH 100% CORRECT ANSWERS 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 required for air compressor - correct answer t...

NATE Gas Heating Exam Verified Questions and answers 2023 Latest Update Since 1992, the United States Department of Energy has required that all furnaces sold and installed from that date on must have an AFUE of no less than: A: 70% B: 75% C: 78% D: 80% - correct answer C: 78% Many pre-1992 furnaces have efficiencies around . A: 10% B: 40% C: 60% D: 80% - correct answer C: 60% Today, furnaces with AFUE ratings greater than are available. A: 85% B: 90% C: 100% D: 110% - correct ...

Z-51 Written Test (Tauris questions) The total amount of heat to be removed from the refrigerant equals the heat picked up in the: A) Evaporator less the heat given up in the muffler. B) Evaporator plus the head of included non-condensables. C) Evaporator plus the heat of compression. D) Evaporator. - CORRECT ANSWER C) Evaporator plus the heat of compression. Select the INCORRECT statement regarding requirements of commercial cooking exhaust systems A) Company servicing the system mys...

Z-51 Written Test (Tauris questions) The total amount of heat to be removed from the refrigerant equals the heat picked up in the: A) Evaporator less the heat given up in the muffler. B) Evaporator plus the head of included non-condensables. C) Evaporator plus the heat of compression. D) Evaporator. - CORRECT ANSWER C) Evaporator plus the heat of compression. Select the INCORRECT statement regarding requirements of commercial cooking exhaust systems A) Company servicing the system mys...

Boma hvac Exam Questions With Verified Solutions What happens when room temperature soda is poured into a glass of ice ? - answerThe ice melts because it is absorbing heat from the soda . The compressor in a refrigeration system - answerpumps the refrigerant throughout the system To control ice build - up on a heat pump outdoor coil in the heating cycle a ______ is used . - answerpressure differential switch The total pressure of a confined mixture of gases is the sum of the pressures of...

100 lbs per square inch (psi) Correct Answer-Above how much compressed air pressure does a person need a permit? Reciprocating, centrifugal, rotary, and solar Correct Answer-Name four different types of air compressors Reciprocating air compressor Correct Answer-What is the most common form of air compressor? Electric motors, internal combustion engines, or steam turbines Correct Answer-What can air compressors be powered by? Compression of the flammable gas May lead to an explosion ...

HVAC FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+ 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 Correct Answer B) The refrigerant's state A mechanical refrigeration system cools a room by: Removing heat from the room. The four types of cooling mechanisms are: Evaporative, Thermoelectric, ...

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....