Compressors - Study guides, Class notes & Summaries

What's the difference between Static and Dynamic conditions in a pump? - Answer-Static - when the pump is not running Dynamic - when the pump is running What is packing material and how is it used? - Answer-A flexible material cut into rings and placed inside the stuffing box to help seal the liquid inside of the pump. What are the two types of lubrication systems for pumps? - Answer-Passive and forced lube systems Name some anti-friction Bearings used on pumps. - Answer-Ball, Roller,...

FDNY Z51 RMO Questions and Answers 100%Verified Graded A+ already passed!! 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 - correct answer lowering the condenser pressure In most semi hermetic compressors, the suction vapor is used for - correct answer cools the motor The amount of refrigerant that flows through the orifices of an economizer is determined by the - corre...

Who licenses real estate inspectors? CORRECT ANSWER TREC The role of sales agent in disclosing property condition: CORRECT ANSWER agent must refrain from giving an opinion of the condition of the property or the validity of any findings in the report. Sales agents responsibility to explain the inspection process. TREC standards of practice - what properties are covered CORRECT ANSWER resales or substantially completed houses. Inspection of houses under construction is a growing segment. ...

A-35 / Supervision of Air Compressors (Citywide) Questions And Answers (Already Passed)

Compressors, Fans, and Blowers Test Questions with Answers The flow of air or gas is carried by the __________ created by the energy transmitted to the gas by the rotating wheel - Answer-pressure differential If no resistance to flow exists, no inlet and outlet duct, the fan provides the gas with ________ only, and no compression or rarefaction occurs. - Answer-velocity energy It consists of an impeller of the squirrel-cage type, operating within a scroll-type housing and including drivi...

A-35 / SUPERVISION OF AIR COMPRESSORS (CITYWIDE)

Refrigeration Theory 2 - Unit 23 Compressors Exam Questions with Certified Answers What 4 processes take place during the reciprocating compression process? - Answer-1. Expansion (re-expansion) 2. Suction (intake) 3. Compression 4. Discharge When installing a reciprocating compressor, which direction should the motor rotate? - Answer-Doesn't matter When servicing a reciprocating compressor, which direction should it rotate when put back? - Answer-The same direction it was already rot...

HVACR ELECTRICAL-CMS, 11 of 14, Motor/Compressorss EXAM...

Test Bank For Modern Refrigeration and Air Conditioning 21st Edition By Andrew D. Althouse, Carl H. Turnquist, Alfred F. Bracciano, Daniel C. Bracciano, Gloria M. Bracciano 8776, 1 . 6044, 1 1 - Careers and Certification 2 - Safety 3 - Service Calls 4 - Energy and Matter 5 - Gases 6 - Basic Refrigeration Systems 7 - Tools and Supplies 8 - Working with Tubing and Piping 9 - Introduction to Refrigerants 10 - Equipment and Instruments for Refrigerant Handling and Servi...

A-35 / Supervision Of Air Compressors (Citywide) Exam With 100 Correct And Verified Answers 2024