The refrigeran,commonly used in vapour absorption refrigeration systems,is..... A.Sulphur dioxide B.Ammonia C.Freon D.Aqua-ammonia View Answer D.Aqua-ammonia Your Comments 8. This test is Rated positive by 93% students preparing for Mechanical Engineering.This MCQ test is related to Mechanical Engineering syllabus, prepared by Mechanical Engineering teachers. MCQ on refrigeration compressors are of great help. Question is ⇒ In aircraft, air refrigeration Cycle is used because of., 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. Newer Post Older Post Home. Refrigeration is transfer heat from low temperature to high temperature. Ans: d; 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. Domestic refrigerator working on vapour compression cycle uses the following type of expansion device_____? 11. MCQ No - 1. Mcq on air cycles increases their understanding. MCQs of Vapour Compression System. A. Refrigeration & Air-Conditioning MCQ with detailed explanation for interview, entrance and competitive exams. Part 5: List for questions and answers of Refrigeration and Air Conditioning. 1. Mechanical Engineering MCQ Question Papers: DRDO, ISRO, Interview. Ans: d. 35. Vapour compression Cycle important Theory & Mcq || RGPV Online exam 2020 || Chapter-2 || RAC (Rgpv online exam important questions & answers 2020 )|| Chp-1 || RAC ) Instruction To Prepare this chapter. Explanation are given for understanding. We call this ratio the coefficient of performance, denoted by COP. MCQ Refrigeration Edit Practice Test: Question Set - 16. Correct … About Me . IF YOU THINK THAT ABOVE POSTED MCQ IS WRONG. From an economic point of view, the best refrigeration cycle is one that removes the greatest amount of heat from the inside of the refrigerator (cold reservoir) for the least expenditure of mechanical work or electric energy. For measurement of temperature in cryogenic range the thermometers used are a) Pyrometers b) Radiation pyrometers c) Gas thermometers 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. A Bell-Coleman cycle is MCQ ~ Air Refrigeration Cycles. Correct Answer. Download best Refrigeration and air conditioning objective type questions and answers free online prepartion. Pick up the wrong statement. Next . 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. 52. Mechanical Engineering Refrigeration and Air Conditioning Important MCQ 1. ⇐ MCQ in Refrigeration Engineering Part 7 | ME Board Exam . Posted by Raihan Kabir at 11:25 AM. The boiling … Subscribe to: Post Comments (Atom) Get Free Update. Enter your email address: Delivered by FeedBurner. Home MCQ Refrigeration Refrigeration and Air-Conditioning Online Practice Test - Set 04 Refrigeration and Air-Conditioning Online Practice Test - Set 04 MCQ Refrigeration Edit Practice Test: Question Set - 04. B. red. C. green. 1. … Ans: d. 34. Refrigeration and air conditioning is used to cool products or a building environment. Choose the letter of the best answer in each questions. -33.33 °C. Q13. Jan 12,2021 - Heat Pump & Refrigeration Cycles And Systems - MCQ Test 1 | 20 Questions MCQ Test has questions of Mechanical Engineering preparation. This test is Rated positive by 93% students preparing for Mechanical Engineering.This MCQ test is related to Mechanical Engineering syllabus, prepared by Mechanical Engineering teachers. Refrigeration and Air Conditioning. Condensing temperature in a refrigerator is the temperature (A) Of cooling medium (B) Of freezing zone (C) Of evaporator (D) At which refrigerant gas becomes liquid. In a vapor compression cycle, the refrigerant immediately after expansion valve is (a) liquid (b) sub-cooled liquid (c) saturated liquid (d) wet vapour (e) dry vapour. For evaporators and ... Air refrigeration cycle is used in (A) Commercial refrigerators (B) Domestic refrigerators (C) Air-conditioning (D) Gas liquefaction. Different air cycles like Otto, Diesel and Brayton are used for different working fluids. Vapour Compression Refrigeration Cycle is the most widely used refrigeration system.In this system, the working fluid is a vapor. Refrigeration and Air Conditioning Refrigeration and Air Conditioning. A.Evaporator B.Condenser C.Expansion valve D.Compressor E.All of the above Related posts: A Rankine cycle working with saturated steam differs thermodynamically from a Carnot cycle only in the fact that If a discharge pressure of a refrigeration compressor is too high, it shows there is (are) A thermometer in the compressor discharge line The flow of […] High Temperature Reservoir Low Temperature Reservoir R Work Input Heat Absorbed Heat Rejected Figure 1. The color of the flame of halide torch, in case of leakage of Freon refrigerant, will change to : A. yellow. The vapour compression refrigerator employs the following cycle (A) Rankine (B) Brayton (C) Carnot (D) Reversed Carnot Answer D. MCQ No - 2. April 16th, 2018 - Home MCQ Refrigeration Refrigeration and Air Conditioning Online Practice Test Set 04 Refrigeration and Air air refrigeration Cycle is used because of A''ONE OF THE FUNDAMENTAL SERIES TRANE ACCUEIL APRIL 24TH, 2018 - JUNE 2011 TRG TRC003 EN AIR CONDITIONING CLINIC REFRIGERATION CYCLE ONE OF THE FUNDAMENTAL SERIES''hfcs refrigeration and air … Latest Online Refrigeration & Air Conditioning MCQ's Quiz 2020 solved free. Vapour Compression Refrigeration Cycle - MCQs with Answers Q1. 53. 1. The refrigeration or air conditioning system (R) transfers heat from a cooler low-energy reservoir to a warmer high-energy reservoir (see figure 1). A. domestic refrigerators B. commercial refrigerators C. air conditioning D. gas liquefaction E. such a cycle does not exist. Domestic refrigerator working on vapour compression cycle uses the following type of expansion device_____? Answered - [low temperature encountered at high altitude.] Which of the following cycles uses air as the refrigerant (a) Ericsson (b) Stirling (c) Carnot (d) Bell-coleman (e) none of the above. B. Air refrigeration cycle is used in _____? This content shows Simple View. These short objective type questions with answers are very important for competitive exams. a. the COP of gas-refrigeration cycle is lower than the COP of vapour compression cycle, for the same capacity b. the COP of gas-refrigeration cycle is higher than the COP of vapour compression cycle, for the same capacity c. the COP of gas-refrigeration cycle is same as the COP of vapour compression cycle d. none of the above [its low unit weight per ton of refrigeration.] Choose the letter of the best answer in each questions. refrigeration cycle which of the following is used for expansion' 13 / 22 'Multiple Choice Questions MCQ On Refrigeration And Air June 14th, 2018 - 12 The Pipes And Fitting In An Ammonia Refrigeration System Should Be Made Of A Cast Steel Or Wrought Iron B Aluminium' 'MULTIPLE CHOICE QUESTIONS ON HEAT TRANSFER REFRIGERATION JUNE 21ST, 2018 - THE FOLLOWING … Share to Twitter Share to Facebook Share to Pinterest. Mcq Added by: Muhammad Bilal Khattak. View Answer: Answer: Option C. Explanation: 352. Refrigeration and Air Conditioning (2161908) MCQ. MCQ on Refrigerator & AC 51-105 51. B.Domestic refrigerators C.Air-conditioning D.Gas liquefaction View Answer D.Gas liquefaction Your Comments 7. Nov 17,2020 - Refrigeration Cycles And Systems - 3 | 30 Questions MCQ Test has questions of Mechanical Engineering preparation. Email This BlogThis! Raihan Kabir Dhaka, Bangladesh View my complete profile. Ans: b 2. Multiple Choice Questions and Answers (MCQs) on Refrigeration and Air-Conditioning 01. a. throttling valve b. capillary tube c. either throttling valve or capillary tube d. none of the above View Answer / Hide Answer What is the Boiling temperature of F – 12? Refrigeration and air conditioning mcq questions converted 1. Basics interview Qu Ans: d Frequently Asked C Plant Economics Mu Questions and Answ 34. Refrigeration & Air Conditioning (AC) MCQ Questions Answers – Mechanical Engineering 1) COP of a carnot heat pump operating between -30C and 270C is a) 10 b) 9 c) 0.111 d) 0.10 2)Which is the primary refrigerant in central air conditioning plant (a) Air (b) Water (c) Freon-22 (d) None (Ans:c) 3) One tones ... Read more Refrigeration & Air Conditioning MCQ Questions Mechanical Engineering ME Subjects – Concepts Simplified Topics on Mechanical Engineering Courses. 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; MCQ in Instrumentation and Controls; Continue Practice Exam Test Questions Part 7 of the Series ⇐ MCQ in Refrigeration Engineering Part 6 | ME Board Exam . One ton refrigeration corresponds to (A) 50 kcal/ min (B) 50 kcal/ hr (C) 80 kcal/ min (D) 80 kcal/ hr. PLEASE COMMENT BELOW WITH CORRECT ANSWER AND ITS … In a refrigeration cycle, the flow of refrigerant is controlled by (A) Compressor (B) Condenser (C) Evaporator (D) Expansion valve Answer: Option D 02. Q12. The process, generally used in winter air-conditioning to warm and humidity the air, is called (A) Humidification (B) Dehumidification (C) Heating and humidification (D) Cooling and dehumidification. [its high heat transfer rate.] Re frige rat ion a nd Air-c ondit ioning Heat Pump and Refrigeration cycles and systems Heat Engine, Heat Pump Reversed Carnot Cycle Liquefaction of Gases Production of Solid Ice Refrigeration capacity (Ton of refrigeration) Vapour Compression System Modifications in Reversed Carnot Cycle with Vapour as a Refrigerant Vapour Compression Cycle Actual Vapour Compression Cycle … Air refrigeration cycle is used in..... A.Commercial refrigerators . Which device is used for the expansion of refrigerant in vapour compression refrigeration cycle? MCQ-REFRIGERATION COMPRESSORS. Subject: Refrigeration and Air Conditioning 5. The relevant ratio is therefore the larger this ratio, the better the refrigerator. Q1. Posted on April 8, 2015 4:17 am by admin. Labels: MCQ. D. orange. 351. A. electrically operated throttling valve B. manually operated valve C. thermostatic valve D. capillary tube E. expansion valve. Home Page -1; Home Page —-2; MCQ-REFRIGERATION COMPRESSORS. 301. These short solved questions or quizzes are provided by Gkseries. No comments: Post a Comment. Jan 09,2021 - Vapour Compression Systems, Refrigerants - MCQ Test 2 | 30 Questions MCQ Test has questions of Mechanical Engineering preparation. Refrigeration and Air Conditioning Multiple Choice Questions and Answers for competitive exams. In a refrigeration cycle, heat is rejected by the refrigerant in a (A) expansion valve (B) condenser (C) compressor (D) evaporator Answer B. 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