Z 51 refrigeration 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 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 ...

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 give...

460 Nursing Bullets: Fundamentals of Nursing Reviewer 1. After turning a patient, the nurse should document the position used, the time that the patient was turned, and the findings of skin assessment. 2. PERRLA is an abbreviation for normal pupil assessment findings: pupils equal, round, and reactive to light with accommodation. 3. When percussing a patient’s chest for postural drainage, the nurse’s hands should be cupped. 4. When measuring a patient’s pulse, the nurse should assess...

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...

Exam (elaborations) TEST BANK FOR Classical Mechanics and Thermodynamics Chapters 1-9 By Sonntag, Borgnakke and Van Wylen. (Solution Manual) correspondence between the problem set in this fifth edition versus the problem set in the 4'th edition text. Problems that are new are marked new and those that are only slightly altered are marked as modified (mod). New Old New Old New Old 1 4 mod 21 13 41E 33E mod 2 new 22 14 42E 34E mod 3 new 23 15 43E 35E 4 7 mod 24 17 44E 36E 5 2 mod 25 18 ...

1. which of the following are reference document commonly used by ref engineers in us national fire protection 2. water and moisture is a serious problem in a refrigeration system water can be kept out of the system. 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. if the condenser water velocity is reduced by one-half t...

15 kg/s of air are compressed from 1 atm and 300K (enthalpy of 300.19 kJ/kg) to 2 atm and 900K (enthalpy of 732.93 kJ/kg). Heat transfer is negligible. The air compressor's power output is most nearly (A) 5.6 MW (B) 6.5 MW (C) 7.6 MW (D) 8.9 MW - answer-B What is most nearly the weight in lbf if a 1.00lbm object in a gravitational field of 27.5ft/s^2? (A) 0.85lbf (B) 1.2lbf (C) 28lbf (D) 32lbf - answer-A A rocket that has a mass of 4000 lbm travels at 27,000 ft/sec. What is mo...

Rasmussen College :NUR 2513/Maternal 2513 Exam 3 Blueprint FINAL 2021/2022 Modules: Dosage calc 7 (Chp 34, 38, 40, 41): Interventions for hospitalized peds client, Respiratory, Cardiac Diseases/Disorders ● What are techniques for administration of ear drops (less than 2 versus older than 2) Turn the child or ask the child to turn onto his or her back or use restraint as necessary. Turn the child’s head to one side. The slant of the ear canal in children. If the child is younger tha...