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FDNY Z-51 Exam Newest 2025-2026 Complete All Questions And Correct Detailed Answers (Verified Answers) |Already Graded A+||Brand New Version!
water and moisture is serious problem in a refrigerant system how to avoid proper evaluation at the charging of the system
while on duty a refrigeration engineer notic That the suction line to the compressor and part of the compressor itself is frosted over the following the most likely reason for this condition would be There is not enough Refrigerant in the system
While doing a routine inspection the engineer notices the bulb of the TXV on the floor. The refrigerant engineer should have attached a bulb at the The outlet end of the coil
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A refrigerant engineer verifies that a chilled water pump is cavity to of the following the most likely cause for this condition is Water leaks through the mechanical seals
The only refrigerant/temperature chart available to a refrigeration engineer lists the temperature In ﾟC if the chart indicates a Celsius temperature of 4ﾟ this is equivalent to 39.2ﾟ F° Temp= C° × 1.8 + 32= 4×1.8= 7.2+32=39.2 F° Convert + 32 C°Convert - 32 C° = F(Temp) - 32° ÷1.8
The use of oil in the refrigeration machine is to Reduce wear and friction in the compressor parts
Which of the following will connect to the Middle port on a gauge manifold Vacuum pump
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There is a decrease in efficiency of a reciprocating compressor. The most likely is caused by Leaking suction valve
The suction and discharge valve of the reciprocating compressor are mounted as follows Discharge valve on top of the valve plate and suction valve on the bottom
A high side float is used to maintain Constant level of refrigerant in the evaporator
Which of these compressors is non positive type compressor displacement Centrifugal
When is emergency power not required according to code Data centers
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