Compressors unit 23 - Study guides, Class notes & Summaries

Advanced Cardiovascular Life Support (ACLS) Exams A and B 2023 A+ l Please do not mark on this exam. Record the best answer on the separate answer sheet. 1. Which type of atrioventricular block best describes this rhythm? A. First-degree B. Second-degree type I C. Second-degree type II D. Third-degree 2. Your patient is in cardiac arrest and has been intubated. To assess CPR quality, which should you do? A. Monitor the patient’s PETCO2 B. Obtain a 12-lead ECG C. Chec...

COMPRESSORS UNIT 23 EXAM 1 QUESTIONS WITH COMPLETE SOLUTIONS Purpose of Economizer - Answer-Reduces flash gas by having a 2 stage pressure drop through float section Capacity control of centrifugal compressors - Answer-Speed control Butterfly damper Variable inlet vanes Compression factors that affect efficiency - Answer-piston/compressor displacement suction/discharge valves number of cylinders clearance pocket (size) Speed Suction/discharge pressures Types of refrigerant used...

Compressors Unit 23 Test Questions with All Correct Answers List the main advantages that a discus compressor's valve plate design has over a conventional piston-type compressor. - Answer-has closer tolerance at dead top center, a larger bore, capacity modulation range from 10 to 100% Briefly describe how the scroll compressor compresses refrigerant gas. - Answer-by turning one scroll against a stationary one around a common axis List four main advantages a scroll compressor has over a ...

Compressors Unit 23 Compressors Quiz Test Exam Questions with All Correct Solutions The suction and discharge valves in a reciprocating compressor open and close depending on the difference in pressure across them. - Answer-True Scroll compressors are becoming popular because they can handle liquid flood-back without compressor damage. - Answer-False The scroll compressor is one type of reciprocating compressor. - Answer-False Rotary compressors have pistons that rotate inside the cyl...

Compressors Unit 23 Exam Questions with Revised Answers Describe The reciprocating compressor coupling - Answer-Coupling: obtains the correct shaft alignment Describe The reciprocating compressor discus valve - Answer-The discus valve which allows a closer tolerance inside the compressor cylinder at the top dead center and integrated system electronics ????? In what speed in RPM does a hermetic compressor normally turn - Answer-1750 and 3450rpm What effect does a small amount of liq...

Compressors Unit 23 Review Test 3 Questions with All Answers Updated and Verified 1. The clearance volume of a compressor cylinder is the ____. - Answer-Volume of the space between the bottom of the valve plate and the top of the piston at the top of the stroke. 2. The discus valve design is more efficient than a flapper valve design because ____. - Answer-It allows a compressor design with less clearance volume 3. Liquid entering the compression chamber of a reciprocating compressor...

RQI 2025 ACLS Healthcare Provider Complete Q&A 2023. Within the first 10 minutes, on the basis of the patient showing symptoms suggestive of myocardial ischemia, what will your first actions include (if not completed by EMS before arrival)? o Obtain a 12-lead electrocardiogram (ECG) o Administer a blood thinner o Administer aspirin and establish IV access o Activate the ST-segment elevation myocardial infarction (STEMI) team o If SPO2 is less than 90%, start oxygen o Assess airway, breath...

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...

When using recovery or recycling equipment manufactured or imported on or after Nov 15, 1993, the required level of evacuation for low pressure equipment is _____ Hg absolute: 30mm 25mm 15mm 20mm 25mm The EPA requires that all commercial and industrial process refrigeration systems with more than 50lb of refrigerant be repaired when the annual leak rate exceeds ______: 35% 15% 30% 25% 35% Open-drive compressors are typically _____ compressors centrifugal reciprocating...

When using recovery or recycling equipment manufactured or imported on or after Nov 15, 1993, the required level of evacuation for low pressure equipment is _____ Hg absolute: 30mm 25mm 15mm 20mm - ANSWER 25mm The EPA requires that all commercial and industrial process refrigeration systems with more than 50lb of refrigerant be repaired when the annual leak rate exceeds ______: 35% 15% 30% 25% - ANSWER 35% Open-drive compressors are typically _____ compressors centrifugal r...