Z 51 refrigeration - Study guides, Class notes & Summaries

FDNY Z51/ Z-51 REFRIGERATION EXAM TEST ACTUAL EXAM 250 QUESTIONS AND CORRECT DETAILED ANSWERS |ALREADY GRADED A+

FDNY Z51/ Z-51 REFRIGERATION EXAM TEST ACTUAL EXAM 200+ QUESTIONS AND CORRECT DETAILED ANSWERS |ALREADY GRADED A+

FDNY Z51/ Z-51 REFRIGERATION EXAM TEST ACTUAL EXAM QUESTIONS AND CORRECT DETAILED ANSWERS |ALREADY GRADED A+

FDNY Z51/ Z-51 REFRIGERATION EXAM TEST ACTUAL EXAM 250 QUESTIONS AND COMPLETE WELL EXPLAINED ANSWERS WITH RATIONALE 100% CORRECT VERIFIED BY EXPERTS AND GRADED A+ LATEST UPDATE 2024[ALREADY PASSED] toxicity 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: Lowering the condensing pressure The heat removed from the refrigerant in a condenser is: Sensible and latent heat The r...

FDNY Z-51 REFRIGERATION EXAM TEST QUESTIONS WITH CORRECT ANSWERS Efficiency of the refrigerant cycle is affected by the operations of the condenser. Of the following, a more efficient centrifugal compressor operation results from: - ANSWER Lowering the condensing pressure The heat removed from the refrigerant in a condenser is: - 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 have been assig...

NEWEST FDNY Z51/ Z-51 REFRIGERATION TEST EXAM QUESTIONS AND VERIFIED CORRECT ANSWERS ALREADY GRADED A+ 2024 – 2025 UPDATE (ACTUAL EXAM) A FDNY permit is required to conduct hot works for?  Use of oxygen and flammable gas FDNY is most concerned with which ASHRAE refrigerant classification?  A3 How long must a fire alarm log book be kept?  6 months What is the minimum requirement an engineer needs to log readings?  Once per shift You are the only engin...

Z-51 REFRIGERATION TEST (ACTUAL ) QUESTIONS WITH ANSWERS.

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 ...

FDNY Z-51- REFRIGERATION LUBRICANTS EXAM QUESTION AND VERIFIED ANSWERS LATEST UPDATE compressor lubrication - ANSWER an adequate supply of oil must be maintained in the crankcase of a refrigeration compressor at all time to ensure continuous circulate properly through a system with refrigerant - ANSWER refrigeration lubricants must have certain properties in order to be able to flow in low temps, withstand high temps and remain harmless to refrigerants and equipment, travel fre...