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  • Air refrigeration cycle is used in mcq

    Ans: e. Sep 04, 2019 · Mechanical Engineering MCQ Question Papers: DRDO, ISRO, Interview. Sep 04, 2019 · The COP of the cycle would be a) 1 b) 2. Free download in PDF Refrigeration and Air Conditioning Objective Type Questions and Answers for competitive exams. . (D) 80 kcal/ hr. vapor compression refrigeration cycle questions and. Subject: Refrigeration and Air Conditioning 5. Aqua-ammonia View Answer D. The colour of the flame of halide torch, in case of leakage of Freon refrigerant, will change to (A) Bright green (B) Yellow (C) Red (D) Orange Answer One ton of the refrigeration is (A) The standard unit used in refrigeration problems (B) The cooling effect produced by melting 1 ton of ice (C) The refrigeration effect to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours (D) The refrigeration effect to produce 1 ton of ice at NTP conditions Oct 30, 2019 · Refrigeration and air conditioning mcq questions converted 1. manually operated valve C. Air refrigeration cycle is used in (a) domestic refrigerators (b) commercial refrigerators (c) air conditioning (d) gas liquefaction Dec 26, 2020 · MCQ in Refrigeration Engineering Part 1 | ME Board Exam About Pinoybix Pinoybix. Part 5: List for questions and answers of Refrigeration and Air Conditioning. com is the Pakistani Top Mcqs website, where you can find Mcqs of all Subjects, You Mechanical Engineering Refrigeration and Air Conditioning Important MCQ 1. Next . Refrigerant used should be such that its normal boiling point is Vapour Compression Refrigeration Cycle is the most widely used refrigeration system. expansion valve. The Following Section consists of Heat Transfer, Refrigeration and Air Conditioning Questions on Physics. gtu-mcq. In a refrigeration cycle, the flow of refrigerant is controlled by (A) Compressor (B) Condenser (C) Evaporator (D) Expansion valve Answer: Option D 02. Components of Air Cycle Refrigeration System: The air cycle refrigeration system uses air as working fluid/refrigerant. TOP Refrigeration and Air Conditioning -Mechanical Engineering Multiple choice Questions and Answers ListBell-coleman (e) none of the above. Q5. 2. Ammonia-absorption refrigeration cycle requires (a) very little work input (b) maximum work input (c) nearly same work input as for vapour compression cycle (d) zero work input (e) none of the above. Jul 17, 2019 · The capillary tube is used almost exclusively in small refrigeration and air conditioning systems. The effect of under cooling the refrigerant is to a) Reducing the COP of the cycle b) Increase the COP of the cycle c) Reduce the refrigerating effect d) None of the above. org is an engineering education website maintained and designed toward helping engineering students achieved their ultimate goal to become a full-pledged engineers very soon. the COP of gas-refrigeration cycle is higher than the COP of vapour compression cycle, for the same capacity c. This contains 30 Multiple Choice Questions for Mechanical Engineering Refrigeration Cycles And Systems - 3 (mcq) to study with solutions a complete question bank. One ton refrigeration corresponds to. Ammonia C. Freon D. During a refrigeration cycle, heat is rejected by the refrigerant in a Compressor Condenser Evaporator Expansion valve 2 A. Ans: d 5. , Options are ⇒ (A) low weight per tonne of refrigeration, (B) high heat transfer rate, (C) low temperature at high altitudes, (D) higher coefficient of performance, (E) , Leave your comments or Download question paper. it must be cheap and available in abundance. Air is primary refrigerant in air craft refrigeration, It is a secondary refrigerant in a fridge. It is tertiary in a central air conditioning. Ans: d 32. January 20, 2021 The refrigeran,commonly used in vapour absorption refrigeration systems,is. when do we need to compressor in refrigeration unit mcq Jan 20, 2021 · in steam jet refrigeration cooling effect is produced by mcq. 1. the COP of gas-refrigeration cycle is higher Thermodynamics Multiple Choice Questions on “Absorption Refrigeration Cycle”. Ans: b 2. Explanation are given for understanding. The Bell-Coleman refrigeration cycle uses _____ as refrigerant. This test comprises of 50 questions on Thermodynamics. May 27, 2016 · MCQ ~ Vapour Compression Refrigeration System 1. During a refrigeration cycle, heat is rejected by the refrigerant in a Compressor Condenser Evaporator Expansion valve 2 7 people answered this MCQ question is the answer among for the mcq Air refrigeration cycle is used in Clarification: Weight of air refrigeration equipment per ton of refrigeration is much less in aircraft than other refrigeration systems. the COP of gas-refrigeration cycle is lower than the COP of vapour compression cycle, for the same capacity b. (C) 80 kcal/ min. 52. 76 d) 5. Famous Heat Transfer, Refrigeration and Air Conditioning multiple choice question for Technology associate engineering and vocational training institute students to give a job exam. Another factor takes place across the Thermostatic expansion valve(TEV), ie. It readily evaporates and condenses or changes alternatively between the vapor and liquid phase without leaving the refrigerating plant. ) Engine, Mechanical Engineering Multiple Choice Questions / Objective type questions, MCQ's, with question and answers, download free PDF, Mechanical Engineering, Multiple Choice Questions, Objective type questions, Mechanical Engineering short notes, rapid fire notes, best theory . 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 a lithium bromide absorption refrigeration system (A) Lithium bromide is used as a refrigerant and water as an absorbent (B) Water is used as a refrigerant and lithium bromide as an absorbent (C) Ammonia is used as a refrigerant and lithium bromide as an absorbent (D) None of the above Dec 27, 2020 · MCQ in Refrigeration Engineering Part 1 | ME Board Exam About Pinoybix Pinoybix. Answer: a Explanation: We use air-cooled condenser for small self-contained units and water-cooled condenser for large installations. Choose the letter of the best answer in each questions. (B) 50 kcal/ hr. Take the Quiz and improve your overall Physics. The solved questions answers in this Refrigeration Cycles And Systems - 3 quiz give you a good mix of easy questions and tough questions. Page-7 section-4 Refrigeration & Air-Conditioning MCQ Question with Answer Refrigeration & Air-Conditioning MCQ with detailed explanation for interview, entrance and competitive exams. flashing effect. Free download in PDF Refrigeration and Air Conditioning Multiple Choice Questions and Answers for competitive exams. Figure 6. MCQ ~ Air Refrigeration Cycles. This mock test of Test: Refrigeration And Air Conditioning -1 for Mechanical Engineering helps you for every Mechanical Engineering entrance exam. (e) none of the above. In this system, the working fluid is a vapor. A. b) decrease in C. Air refrigeration cycle is used in (A) commercial refrigerators (B) domestic refrigerators Clarification: Air refrigeration system is used mainly due to light in weight, smaller and environment friendly due to use of air as refrigerant. A standard ice point temperature corresponds to the temperature of (a) water at 0°C (b) ice at 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) Coolant b) CO 2 c) Air d) H 2 O Answer: c MCQs of Air Refrigeration. Comparison Between Disc Brake & Drum Brake, TOM, Mechanical Engineering, GATE, Syllabus - Mechanical Engineering : ME, GATE, What is Cams Ans: d, 31. ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) Hello Friends, Test your knowledge in MCQ on Air Refrigeration System with Answers. Q6. 11) Large sized industrial air-conditioning plant are. Jan 20, 2021 · in cascade refrigeration number of refrigerant used is mcq. 33. (d) 40 tons (a) liquid The suction pipe diameter of refrigerating unit compressor in comparison to delivery side is (a) after passing through the condenser (e) unpredictable. (b) decreases COP Gonit Sora গণিত চ’ৰা is a multi lingual (English and Assamese) web magazine devoted to publishing well written and original articles related to science in general and mathematics in particular. (A) 50 kcal/ min . These short solved questions or quizzes are provided by Gkseries. Also it has higher co-efficient of performance. Aqua-ammonia Your Comments 8. C. Aug 31, 2014 · 95 TOP Refrigeration and Air Conditioning - Mechanical Engineering Multiple choice Questions and Answers List Latest Refrigeration and Air Conditioning Questions and Answers 1. This contains 25 Multiple Choice Questions for Mechanical Engineering Test: Refrigeration And Air Conditioning -1 (mcq) to study with solutions a complete question bank. Hence it is light. Its purpose is to move heat, rather than produce work. January 20, 2021 Thermodynamics of refrigeration cycles A cycle is a series of thermodynamic from ME LNG001 at Universidad Simón Bolívar A Brayton cycle that is driven in reverse, via net work input, and when air is the working fluid, is the gas refrigeration cycle or Bell Coleman cycle. which will improve your skill. This air-cooling technique is used widely in jet aircraft for air conditioning systems using bleed air tapped Question: 1) An Air Conditioner With R-134a Refrigerant As Its Working Fluid (in A Vapor Compression Refrigeration Cycle) Is Used To Maintain An Enclosure At 18 ° C By Releasing Residual Heat To The Outside Air At 30 ° C. Option – c) 12)Clapeyron equation is a relation between (a) temperature, pressure and enthalpy Both A and R are individually true but R is not the correct explanation of A. The Enclosure Is Gaining Heat From The Walls And Windows At A Rate Of 350 KJ / Min While The Heat Generated By The Short cut notes / rapid fire notes / best theory of Internal Combustion (I. com is an online portal for the preparation of the MCQ test of Degree and Diploma Engineering Students of the Gujarat Technological University Exam. a. 38 c) 4. It is because of air compressor is already available in the air-craft. For measurement of temperature in cryogenic range the thermometers used are a) Pyrometers b) Radiation pyrometers c) Gas thermometers Find out latest Multiple Choice Questions with Answers on Refrigeration and Air Conditioning for exam preparation. Reduction in operating pressure in the Air refrigeration cycle results in _____ a) increase in C. It causes refrigeration from heat. O. 18 shows a simple diagram of an air cycle refrigeration system known as […] Vapor-Compression Refrigeration or vapor-compression refrigeration system (VCRS), in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air-conditioning of buildings and automobiles. Air refrigeration operates on (a) Carnot cycle (b) Reversed Carnot cycle (c) Rankine cycle (d) Erricson cycle (e) Brayton cycle. Apr 08, 2015 · It should not make the materials unfit of consumption in the event of leakage. electrically operated throttling valve B. In this page you can learn various important refrigeration … 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. Air refrigeration cycle is used in a) Domestic refrigerators b) Commercial refrigerators c) Air conditioning d) Gas liquefaction May 27, 2016 · MCQ ~ Vapour Compression Refrigeration System 1. MCQ No - 1. Refrigeration and Air Conditioning MCQ Questions 1-One ton of refrigeration is equal to (A) 21 KJ/min (B) 105 KJ/min (C) 210 KJ/min (D) 420 KJ/min 2-A low side float valve maintains the level of refrigerant in (A) Flooded evaporator (B) Evaporator (C) Condenser (D) Compressor 3-When wet bulb and dry bulb temperature are equal the 'Multiple Choice Questions on Refrigeration and Air June 17th, 2018 - Home MCQ Refrigeration Multiple Choice Questions on Refrigeration and Air Conditioning Set 08 Multiple Choice Questions on' 'HVAC Practice Exam HVACR Practice Exam Questions June 18th, 2018 - Our HVACR practice exam consists of questions developed by HVAC Excellence Learn 14. 51. c) no change in C. none of the above www. capillary tube E. These short objective type questions with answers are very important for competitive exams. #MCQ#AirRefrigerationSystem#RefrigerationCycle#ThermalEgnineeringII Air refrigeration cycle is used in _____? 0. P. (e) receiver. Q1. The process, generally used in winter air-conditioning to warm and humidity the air, is called. White ice is a) Fast cooled water b) Due to dissolved air, gases and impurities c) Produced by blowing air The Following Section consists of Heat Transfer, Refrigeration and Air Conditioning Questions on Physics. (b) much below critical pressure (e) 3 : 1 They may work in the design in technical offices or in the installation in contracting companies. Sulphur dioxide B. © Copyright 2016. thermostatic valve D. domestic refrigerators PakMcqs. Refrigeration And Air Conditioning MCQ question is the important chapter for a Mechanical Engineering and GATE students. answer Question is ⇒ In aircraft, air refrigeration Cycle is used because of. 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. Ans: e; Air refrigeration cycle is used in (a) domestic refrigerators (b) commercial refrigerators (c) air conditioning (d) gas liquefaction (e) such a cycle does not exist. In absorption refrigeration cycle, which of the following is used? a) refrigerant b) absorbent c) both of the mentioned d) none of the mentioned Answer: c Clarification: Both refrigerant and absorbent are used in absorption refrigeration cycle. ADVERTISEMENTS: In this article will discuss about the components, merits and demerits of air cycle refrigeration system. (c) Vapor absorption refrigeration (b) Evaporator of low temperature Natural refrigerants are substances that serve as refrigerants in refrigeration systems (including refrigerators standard refrigeration and air conditioning questions and answers Dec 09, 2020 Posted By Wilbur Smith Ltd TEXT ID b65daf3b Online PDF Ebook Epub Library pdf 46 formation of frost on evaporator in refrigerator a results in loss of heat due to poor heat transfer b increases heat transfer rate c is immaterial d can be avoided by Home; Services; Ozone Interior Clean; Detailing; Self-Service Car Wash; Automatic Car Wash; January 19, 2021 Uncategorized. 7. Correct Answer. May 07, 2018 · MCQ on Refrigerator & AC 51-105. Aug 12, 2020 · a) it can be air-cooled or water-cooled b) small self-contained units use water-cooled condenser c) large installations use air-cooled condenser d) all of the mentioned View Answer. This system is working on reversed Brayton cycle. Multiple Choice Questions and Answers (MCQs) on Refrigeration and Air-Conditioning 01. Ans: b, 59. Pick up the wrong statement. the COP of gas-refrigeration cycle is same as the COP of vapour compression cycle d. We know (Gay-Lussac’s Law) Pressure Temperature Law that pressure is directly proportional to temperature for a given amount of gas at constant volume.