Fdny z 51 - Study guides, Class notes & Summaries

FDNY Z-51- Refrigeration Engineer TEST Q&A 1. which of the following are reference document commonly used by ref engineers in us - ANSWER national fire protection 2. water and moisture is a serious problem in a refrigeration system water can be kept out of the system. - ANSWER proper evacuation after charging the system 3. the pressure drop through the condenser is directly proportional to the square of the water velocity. at the flow rate the condenser water pressure drop is 40 psi. ...

Z-51 Written Test Questions And Answers Well Illustrated. In a steam turbine, what is the function of a Kingsbury thrust bearing? A) Maintain first stage steam pressure. B) Compensate for coupling misalignment. C) Adjust shaft torque at start up. D) Maintain axial positioning of the rotor shaft. - correct answer. D) Maintain axial positioning of the rotor shaft. The ratio of actual pressure of water pressure in the atmosphere to the saturated pressure of given temperature ...

Z-51 Written Test Questions and Answers Latest 2023/2024 (Grade 100%). In a steam turbine, what is the function of a Kingsbury thrust bearing? A) Maintain first stage steam pressure. B) Compensate for coupling misalignment. C) Adjust shaft torque at start up. D) Maintain axial positioning of the rotor shaft.: correct answer- D) Maintain axial positioning of the rotor shaft. 2. The ratio of actual pressure of water pressure in the atmosphere to the saturated pressure of given temperature i...

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...

Z-51 Written Test Questions With 100% Correct Answers Latest 2024 (Grade A+) In a steam turbine, what is the function of a Kingsbury thrust bearing? A) Maintain first stage steam pressure. B) Compensate for coupling misalignment. C) Adjust shaft torque at start up. D) Maintain axial positioning of the rotor shaft.: correct answer- D) Maintain axial positioning of the rotor shaft. 2. The ratio of actual pressure of water pressure in the atmosphere to the saturated pressure of given tempera...

Z-51 Written Test questions and answers 100% guaranteed success. In a steam turbine, what is the function of a Kingsbury thrust bearing? A) Maintain first stage steam pressure. B) Compensate for coupling misalignment. C) Adjust shaft torque at start up. D) Maintain axial positioning of the rotor shaft. - correct answers.D) Maintain axial positioning of the rotor shaft. The ratio of actual pressure of water pressure in the atmosphere to the saturated pressure of given temperature is A) ...

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 condenser pressure In most semi hermetic compressors, the suction vapor is used too Cool's the motor The amount of refrigerant that flows through the orifices of an economizer is determined by the Difference between the high side and the low side pressure the instalation of an inline refrigera...