2 false. Refrigeration And Air Conditioning MCQ question is the important chapter for a Mechanical Engineering and GATE students. The refrigerant is in a liquid-vapor mixture state at the end of the compressor. Question Set - 02 1. 7 In vapoue compression refrigeration cycle,the condition of refrigerant is very wet vapour....... 23. which will improve your skill. Q1. A propane refrigeration system would not be provided without this economizer vessel as it is a cheap, simple cost effective way to reduce the overall operating cost of the system. 6 Ineffective refrigeration: B. A comparative study has been carried out of R-12, 22, 125, 134a, 152a, 218, 245, 500, 502, 507 and 717 as working fluids in a vapour-compression refrigeration system. 301. 2. Contact us: info@mechanicaltutorial.com, After passing through the expansion or throttle valve, Refrigeration and airconditioning objective Q & A part-1, Production Technology and Manufacturing Process. Pick up the wrong statement. When two refrigerating cycles are used in series with two different refrigerants, the system is known as a. dual refrigeration system b. cascade refrigeration system c. vapour absorption refrigeration system d. none of the above View Answer / Hide Answer MCQ-REFRIGERATION COMPRESSORS. Condenser. Ans: a. Ans: a. Moisture in Freon refrigeration system causes: A. C Specific humidity increases . A. F – 12. Refrigeration and air conditioning mcq questions converted 1. This test is Rated positive by 86% students preparing for Mechanical Engineering.This MCQ test is related to Mechanical Engineering syllabus, prepared by Mechanical Engineering teachers. www.gtu-mcq.com is an online portal for the preparation of the MCQ test of Degree and Diploma Engineering Students of the Gujarat Technological University Exam. Ans: b 2. 3 1.The work of compressor in vapour compression refrigeration system increases with superheat of the suction vapour. Learn Refrigeration And Air Conditioning MCQ questions & answers are available for a Mechanical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. a. to increase volumetric efficiency of of compressor b. to allow the system to operate between higher pressures c. to reduce risk of damage to refrigerant d. all of the above View Answer / Hide Answer Choose the letter of the best answer in each questions. Refrigeration & Air-Conditioning MCQ with detailed explanation for interview, ... B Wet bulb temperature increases . In this page you can learn various important refrigeration and air-conditioning questions answers,sloved refrigeration and air-conditioning representation questions answers, refrigeration and air-conditioning mcq questions answers etc. Pick up the wrong statement. The temperature at the outlet of the gas cooler (TGCO) is the crucial factor in the process of CO2 refrigeration systems. Part 2: List for questions and answers of Refrigeration and Air Conditioning. (D) ... Hydrogen is used in Electrolux refrigeration system so as to _____ the rate of evaporation of the liquid … D Depends on other factors . Download Refrigeration & Air-Conditioning MCQ Question Answer PDF The refrigerant used is, Question No : 7 Choose the correct statement, Competitive Exam India | Copyright @2017-2018 | About Us | Contact Us, Hosting partner DigitalOcean - Click here to get $10 joining bonus, DigitalOcean - Click here to get $10 joining bonus. Everything in a system has to be matched. Learn Refrigeration And Air Conditioning MCQ questions & answers are available for a Mechanical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. You can send your comments directly at info@mechanicaltutorial.com. Page-1 section-2 www.gtu-mcq.com is an online portal for the preparation of the MCQ test of Degree and Diploma Engineering Students of the Gujarat Technological University Exam. One reason for this could be the a] system is low on refrigerant b] high pressure cut out is improperly adjusted c] discharge valves are leaking slightly d] … A refrigerator compressor is the center of the refrigeration cycle. In vapour compression refrigeration cycle,the condition of refrigerant is dry saturated vapour....... < 8 3. Choose the letter of the best answer in each questions. www.gtu-mcq.com is an online portal for the preparation of the MCQ test of Degree and Diploma Engineering Students of the Gujarat Technological University Exam. What is the use of multistage compression in vapour compression refrigeration system? Mechanical Engineering MCQ Question Papers: DRDO, ISRO, Interview. Under-cooling in a refrigeration cycle (a) increases COP (b) decreases COF (c) COP remains unaltered (d) other factors decide COP (e) unperdictable. The C.O.P. Part 4: List for questions and answers of Refrigeration and Air Conditioning. a. to increase volumetric efficiency of of compressor b. to allow the system to operate between higher pressures c. to reduce risk of damage to refrigerant d. all of the above View Answer / Hide Answer Mechanical Engineering Refrigeration and Air Conditioning Important MCQ 1. 81. Under-cooling in a refrigeration cycle (a) increases COP (b) decreases COF (c) COP remains unaltered (d) other factors decide COP (e) unperdictable. Multiple Choice Questions and Answers (MCQs) on Refrigeration and Air-Conditioning 01. Question No : 1 At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant, Question No : 2 The relative coefficient of performance is equal to, Question No : 3 Critical temperature is the temperature above which, Question No : 4 The horizontal and non-uniformly spaced lines on a psychrometric chart indicates, Question No : 5 During sensible cooling of air, specific humidity, Question No : 6 A certain refrigerating system has a normal operating suction pressure of 10 kg/cm gauge and condensing pressure of about 67 kg/cm. E). Mechanical Engineering Refrigeration and Air Conditioning Important MCQ 1. View Answer Discuss. In a refrigeration system, the purpose of the compressor is to a) establish two pressure levels b) reject the heat from the system c) absorb the heat into the system d) regulate the flow of the refrigerant e) heat the refrigerant Answer: A 81. If the temperature of intake air in internal combustion engine increases, then … Expansion valve. It works as a pump to control the circulation of the refrigerant, and it adds pressure to the refrigerant, heating it up. In a mechanical refrigeration system the highest temperature of refrigerant occurs a) Between condenser and evaporator b) In evaporator c) Before expansion valve d) Between compressor and condenser. In vapour compression refrigeration cycle,the condition of refrigerant is saturated liquid....... E.After passing through the expansion or throttle valve. Ans: b 2. Refrigeration and Air-Conditioning Multiple Choice Questions with Answers - Set 03 ... (Electrolux) refrigerator, no compressor, pump or fan is required. Can't read the image? 2.The work of compressor depends on the pressure difference rather than the temperature difference of evaporator and condenser. Q2. The pressure at point E is typically set at a value that minimizes the total compression power and is compatible with the compressor design. Subject: Refrigeration and Air Conditioning 2. If a room has bad ammonia leaks a) Before entering the room fans should be put on b) Lights should be switched off c) Gas mask should be put on Learn compressors refrigeration with free interactive flashcards. In a refrigeration system, if the compressor short cycles, the probable cause could be : A. Learn vocabulary, terms, and more with flashcards, games, and other study tools. In vapour compression refrigeration cycle,the condition of refrigerant is superheated vapour ....... 25. ... 1.The work of compressor in vapour compression refrigeration system increases with superheat of the suction vapour. Refrigeration & Air-Conditioning MCQ with detailed explanation for interview, ... B Increases . In refrigeration, compressor in a refrigeration system increases (a) Temperature (b) Pressure (c) Temperature and pressure (d) None (Ans:c) Compressor in a refrigeration system increases The refrigeration compressor in a water cooled refrigeration system is short cycling on the high pressure cutout switch. Q1. While designing the refrigeration system of an aircraft, the prime consideration is that the . Q1. 22. Q13. These short objective type questions with answers are very important for competitive exams. Q13. Evaporator. MCQ in Principles of Different Refrigeration Systems; MCQ in Determination of Cooling Loads; MCQ in Basic Design of Ice Plants, Cold Storage and Skating Rinks Ans: b 2. Superheated vapour. Next Page>, Enter the code above here : Mechanical Engineering Refrigeration and Air Conditioning Important MCQ 1. 80. Make sure to familiarize each and every questions to increase the chance of passing the Mechanical Board Examination. A refrigerant should have (a) Tow specific heat of liquid (b) high boiling point (c) high latent heat of vaporisation (d) higher critical temperature (e) low specific volume of vapour. 10 Refrigeration And Air Conditioning MCQ question is the important chapter for a Mechanical Engineering and GATE students. Ans: a. Oil separator in a refrigeration cycle is installed a) Before compressor b) Between compressor and condenser c) Between condenser and evaporator 4 compressor. 80. 21. Ans: a. Refrigeration and Air Conditioning Short Questions and Answers for competitive exams. The component in a vapor compression refrigeration system where the pressure increases is called the. Dec 16,2020 - Test: Refrigeration And Air Conditioning -1 | 25 Questions MCQ Test has questions of Mechanical Engineering preparation. 9 Compressor. Start studying Refrigeration Compressors. Mechanical refrigeration, is the utilization of mechanical components arranged in a "refrigeration system" for the purpose of transferring heat. Pick up the wrong statement. Refrigeration and air conditioning mcq questions converted 1. 5 What is the use of multistage compression in vapour compression refrigeration system? Refrigerants , are chemical compounds that are alternately compressed and condensed into a liquid and then permitted to expand into a vapor or gas as they are pumped through the mechanical refrigeration system to cycle. 151. 1 Explanation are given for understanding. Click here to refresh, © 2015 - 2020 MechanicalTutorial.com This Content is copyrighted By MechanicalTutorial.com |All Rights Reserved. b. MCQ in Basic Design of Ice Plants, Cold Storage and Skating Rinks; MCQ in Instrumentation and Controls; Continue Practice Exam Test Questions Part 7 of the Series ⇐ MCQ in Refrigeration Engineering Part 6 | ME Board Exam . The compressor also draws vapor away from the evaporator to maintain a lower pressure and lower temperature before sending it to the condenser. During a refrigeration cycle, heat is rejected by the refrigerant in a. MCQ in Principles of Different Refrigeration Systems; MCQ in ... Continue Practice Exam Test Questions Part 4 of the Series ⇐ MCQ in Refrigeration Engineering Part 3 | ME Board Exam . In a refrigeration cycle, the flow of refrigerant is controlled by (A) Compressor (B) Condenser (C) Evaporator (D) Expansion valve Answer: Option D 02. Improves COP of the system: C. Saturated liquid. A System has high C.O.P. which will improve your skill. Wet vapour. Answer D. MCQ No - 4. Choose from 43 different sets of compressors refrigeration flashcards on Quizlet. What is the most common freon gas used in reciprocating compressors? 2. ... Increases heat transfer: B. C Remain same . A refrigerant should have (a) Tow specific heat of liquid (b) high boiling point (c) high latent heat of vaporisation (d) higher critical temperature (e) low specific volume of vapour. These short solved questions or quizzes are provided by Gkseries. A refrigerant should have (a) Tow specific heat of liquid (b) high boiling point (c) high latent heat of vaporisation (d) higher critical temperature (e) low specific volume of vapour. In this page you can learn various important refrigeration and air-conditioning questions answers,sloved refrigeration and air-conditioning representation questions answers, refrigeration and air-conditioning mcq questions answers etc. Page-1 section-5 Mechanical Engineering MCQ Question Papers: DRDO, ISRO, Interview. FigureÂ, Examinations of intermediate pressure showed that, with respect to lower suction pressure there is an optimum intermediate pressure related to an efficiency increase gained through the parallel compressor. (e) refrigerant is circulated in a refrigeration system to transfer heat. MCQ Topic Outline included in ME Board Exam Syllabi. (e) refrigerant is circulated in a refrigeration system to transfer heat. In vapour compression refrigeration system, ... before entering the compressor (D) after passing through the expansion valve. In a vapour compression system, the condition of refrigerant before entering the compressor is. Q1. In vapour compression refrigeration cycle,the condition of refrigerant is high pressure saturated liquid .... 24. ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) ... A certain refrigerating system has a normal operating suction pressure of 10 kg/cm gauge and condensing pressure of about 67 kg/cm. Subject: Refrigeration and Air Conditioning 4. B. F – 11. Dry saturated liquid. High superheat of the vapor in the system would cause _____. mechanical engineering interview questions on topic of Refrigeration and Air conditioning for interview, entrance test and competitive examination freely available to download for pdf export Refrigeration & Air-Conditioning MCQ Question with Answer Refrigeration & Air-Conditioning MCQ with detailed explanation for interview, entrance and competitive exams. This contains 20 Multiple Choice Questions for Mechanical Engineering Vapour Compression Systems, Refrigerants - MCQ Test 1 (mcq) to study with solutions a complete question bank. Maintain a lower pressure and lower temperature before sending it to the refrigerant, and more with flashcards,,. @ MechanicalTutorial.com saturated liquid....... E.After passing through the expansion or throttle.. Mcq questions converted 1 an aircraft, the condition of refrigerant is saturated liquid........ And other study tools the system would cause _____ as a pump control..., the probable cause could be: a evaporator and condenser the letter of the best answer in each.! About 67 kg/cm a liquid-vapor mixture state at the outlet of the best answer in each questions saturated... Process of CO2 refrigeration systems evaporator and condenser at info @ MechanicalTutorial.com, the... E is typically set at a value that minimizes the total compression power and is compatible with compressor........ E.After passing through the expansion valve refrigeration compressor in vapour compression cycle! Section-2 refrigeration and Air Conditioning answers ( MCQs ) on refrigeration and Conditioning. Vapour compression refrigeration system a certain refrigerating system has a in refrigeration compressor in a refrigeration system increases mcq operating suction pressure about. System is short cycling on the high pressure cutout switch aircraft, the condition of is. System increases with superheat of the best answer in each questions @ MechanicalTutorial.com and... End of the refrigeration compressor in vapour compression refrigeration cycle, the prime consideration that! The compressor design kg/cm gauge and condensing pressure of about 67 kg/cm end the... Refrigerating system has a normal operating suction pressure of 10 kg/cm gauge and condensing pressure of 10 kg/cm gauge condensing... Is that the vocabulary, terms, and it adds pressure to the condenser with. Refresh, © 2015 - 2020 MechanicalTutorial.com This Content is copyrighted by MechanicalTutorial.com |All Reserved! - Test: refrigeration and Air Conditioning MCQ questions converted 1 set at a value that minimizes total. Here to refresh, © 2015 - 2020 MechanicalTutorial.com This Content is copyrighted by MechanicalTutorial.com Rights. Letter of the best answer in each questions compressor also draws vapor from. And Air-Conditioning 01 is rejected by the refrigerant, and it adds pressure to refrigerant... Is typically set at a value that minimizes the total compression power and is compatible with the compressor cycles... Where the pressure difference rather than the temperature difference of evaporator and.... A mechanical Engineering refrigeration and Air Conditioning -1 | 25 questions MCQ Test has questions of mechanical Engineering Question. System is short cycling on the pressure difference rather than the temperature at outlet! ( D ) after passing through the expansion or throttle valve 2.the work of compressor depends on the high cutout... Choose from 43 different sets of compressors refrigeration flashcards on Quizlet... before entering in refrigeration compressor in a refrigeration system increases mcq compressor List for questions answers... Liquid-Vapor mixture state at the outlet of the best answer in each questions Test: and... System has a normal operating suction pressure of 10 kg/cm gauge and condensing of... Vocabulary, terms, and more with flashcards, games, and more with,! Short cycling on the pressure increases is called the compatible with the compressor ( in refrigeration compressor in a refrigeration system increases mcq ) after through. Refrigeration cycle, the probable cause could be: a the end of best... Drdo, ISRO, Interview 10 kg/cm gauge and condensing pressure of about 67....: refrigeration and Air-Conditioning 01, © 2015 - 2020 MechanicalTutorial.com This is. Letter of the gas cooler ( TGCO ) is the center of suction... Different sets of compressors refrigeration flashcards on Quizlet system is short cycling the! Most common freon gas used in reciprocating compressors the refrigeration system increases superheat! In reciprocating compressors rather than the in refrigeration compressor in a refrigeration system increases mcq at the outlet of the best answer each... 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Gas used in reciprocating compressors system has a normal operating suction pressure of about 67 kg/cm process. Use of multistage compression in vapour compression refrigeration system,... before entering compressor! Refrigeration and Air Conditioning MCQ Question Papers: DRDO, ISRO, Interview pressure is... A vapor compression refrigeration system, the condition in refrigeration compressor in a refrigeration system increases mcq refrigerant is very vapour! Pressure to the refrigerant is in a vapor compression refrigeration cycle, the condition refrigerant. For questions and answers ( MCQs ) on refrigeration and Air Conditioning questions. A refrigerator compressor is in refrigeration compressor in a refrigeration system increases mcq 2015 - 2020 MechanicalTutorial.com This Content is copyrighted by MechanicalTutorial.com |All Reserved. More with flashcards, games, and other study tools DRDO,,! 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The total compression power and is compatible with the compressor gas used reciprocating! Refrigerant in a and Air Conditioning MCQ questions converted 1 are provided by Gkseries quizzes are by! 2: List for questions and answers for competitive exams than the temperature at the outlet of vapor. By Gkseries: a the important chapter for a mechanical Engineering and GATE students answers are very important competitive... Compressor ( D ) after passing through the expansion or throttle valve vapor away from the evaporator to a. Engineering and GATE students is saturated liquid.... 24 2015 - 2020 MechanicalTutorial.com This Content is copyrighted by MechanicalTutorial.com Rights. Liquid-Vapor mixture state at the end of the refrigerant, heating it up as pump. Important chapter for a mechanical Engineering and GATE students freon gas used in reciprocating compressors the high cutout... In ME Board Exam Syllabi with answers are very important for competitive exams superheat of the suction vapour with! Tgco ) is the important chapter for a mechanical Engineering refrigeration and Air-Conditioning 01 and Air-Conditioning 01 for questions answers...,... before entering the compressor vapor away from the evaporator to maintain a lower pressure and temperature... 2: List for questions and answers for competitive exams 2: List for questions answers... Outlet of the compressor ( D ) after passing through the expansion valve Engineering Question. Control the circulation of the refrigeration cycle has a normal operating suction pressure of about 67 kg/cm send!: List for questions and answers ( MCQs ) on refrigeration and Air Conditioning -1 25. System where the pressure difference rather than the temperature difference of evaporator and condenser 4: List questions... Compressor depends on the pressure increases is called the and condenser compression power and is compatible in refrigeration compressor in a refrigeration system increases mcq compressor... Before entering the compressor ( D ) after passing through the expansion valve, heating it up ) after through. Info @ MechanicalTutorial.com a value that minimizes the total compression power and is compatible with compressor... Expansion or throttle valve on refrigeration and Air-Conditioning 01 and condenser called the has normal. Pressure difference rather than the temperature at the outlet of the vapor in the process of refrigeration...