Z 51 refrigeration - Study guides, Class notes & Summaries

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...

Z-51 Written Test Questions and Answers (100% Correct) Answers 2023/2024 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 t...

Z-51 REFRIGERATION EXAM LATEST WITH UPDATED QUESTIONS AND ANSWERS (ALREADY GRADED A+) Information about the physical and chemical properties of a hazardous material can be found in: - ANSWER-Material Safety Data Sheet What is the function of the turbine auxiliary oil pump? - ANSWER Establish oil pressure during turbine start up The rupture disc for a low pressure centrifugal refrigeration machine is normally located on the: - ANSWER-Compressor suction What is the primary re...

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...

Z-51 REFRIGERATION TEST Exam Questions And Answers. Verified And Updated. Efficiency of the refrigerant cycle is affected by the operations of the condenser. Of the following, a more efficient centrifugal compressor operation results from: - answerLowering the condensing pressure The heat removed from the refrigerant in a condenser is: - answerSensible 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...

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...

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. ...

Oct/Nov 2021 TAX2601 Principles of Taxation 100 Marks Duration 2 Hours (plus 60 minutes for upload) This paper consists of nine (9) pages plus the annexure (p i). IMPORTANT INSTRUCTIONS: 1. All amounts exclude VAT unless stated otherwise. 2. All persons mentioned are residents of the Republic of South Africa unless stated otherwise. 3. SARS = South African Revenue Service The answering of this paper: 1. This paper consists of four (4) questions. 2. Answer all the questi...

Z-51, 140 Exam Questions and Complete Solutions A refrigerant engineer verifies that a chilled water pump is cavitating. of the following the most likely cause for this condition is: - Answer: Water leaks through the mechanical seals There is a decrease in the efficiency of a reciprocating compressor. this most likely caused by: - Answer: Leaking suction valve The suction and discharge valve of the reciprocating compressor are mounted as follows: - Answer: Discharge valves on top of the...