One ton of refrigeration - Study guides, Class notes & Summaries

Q-01 FDNY Exam Questions With Correct Answers Latest 2023/2024 (Graded) Rupture members, when used in parallel with a relief valve, are not to exceed _____% above designed working pressure - Correct Answer-20% Butterfly valve: where can it be used? - Correct Answer-Can be used on the inlet and outlet of a water pump What electrical motor protection device automatically resets itself? - Correct AnswerThe thermal protector 746 watts equals how many kilowatt hours? - Correct Answer-.746 kilowa...

559 Journeyman Mechanical Exam HVAC Complete Questions and Answers Which Type of air-conditoning system is most likely to leak refrigerant into a structure? Direct, Indirect, Evaporative or Split? - CORRECT ANSWER-Direct : 2015 IMC 1103.3.2 When mechanical equipment is located on a flat roof that is more than 30 inches above grade, how far from the roofs edge must the equipment be located before a guard rail is not needed? less than 6', 9', 4' or more than 10'? - CORRECT ANSWER-Mo...

Efficiency of the refrigerant cycle is affected by the operations 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 refrigerant unit that you have been assigned to is being taken out of service for a major repair. You have been assigned to withdraw refrigerant for storage in suitable containers. According to the N...

RETA CARO Chapter 1 Exam Questions With Verified Solutions Purpose of a Refrigeration System Achieve or maintain proper temperatures in a refrigeration process used for cooling/freezing applications Ton of Refrigeration Rate BTUs transfer per unit time 288,000 BTUs/24 Hours 12,000 BTUs/12 Hours 200 BTUs/1 Minute rate of refrigeration or cooling Pressure Force per unit area. PSIA Absolute pressure; measures pressure from zero pressure PSIG Gauge pressure, uses atmo...

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 refrigerant unit that you have been assigned to is being taken out of service for a major repair. you have been assigned to withdraw refrigerant for storage in suitable containers. according to th...

BOMA-HVAC EXAM WITH COMPLETE SOLUTIONS laminar flow - A streamline or viscous flow. - layers of water flowing over one another at different speeds with virtually no mixing between layers. - Fluid particles move in definite and observable paths or stream lines. - The flow is characteristic of viscous (thick) fluid or is one in which viscosity of the fluid plays a significant part. turbulent flow Irregular movement of particles of the fluid. What do you use to determine quantity of air...

The Celsius scale is based on boiling water having a temperature at sea level of_? - 100° Subcooling occurs_. - After all vapor has changed to liquid When the temperature of a vapor is higher than its boiling point, the vapor is_? - Superheated When heat is carried from one object to another by means of a moving liquid or gas, it is being transferred by_? - Convection A ton of refrigeration is equal to_? - 12,000 BTUs per hour When the pressure on a liquid in a closed space is increased, ...

HVAC JOURNEYMAN TEST EXAMS QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED 2024 Which type of air-conditioning system is most likely to leak refrigerant into a structure? A.direct B.indirect C.evaporative D.split. A.direct When mechanical equipment is located on a flat roof that is 8 foot above grade, how far from the roof edge must the equipment be located before a guard rail is not needed? A. Less than 6' B. 9' C. 4' D. More than 10' D. More than 10' A room that measures 10 x 20 x 8 conta...

RETA CARO QUESTIONS AND ANSWERS ALREADY PASSED Which refrigerant has the highest mass flow requirement at the same evaporator and condensing temperature? CFC-12 which refrigerant is the first to be phased out by Montreal Protocol CFC-12 As the ratio between the evaporator and condensing pressure increases the theoretical discharge temperature increases Under the Montreal Protocol as long as a technician does not perform work on the refrigerant containing portions of a system they do not need...

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 refrigerant unit that you have been assigned to is being taken out of service for a major repair. you have been assigned to withdraw refrigerant for storage in suitable containers. according to th...