Military com electrical engineering and all June 25th, 2018 - and all ... quiz refrigeration multiple choice questions and answers pdf mcqs who is known as father 35 / 41. of refrigeration for online exam test prep' MCQ-VAPOR ABSORPTION REFRIGERATION. Air conditioning systems, concept of RSHF, GSHF and ESHF, Cooling load calculations. Test has multiple choice questions In an air cycle refrigeration system''Headlines 13 / 41. In a refrigeration cycle, the flow of refrigerant is controlled by_____? Pressure-enthalpy diagrams for a subcritical cycle with R-134a and a transcritical cycle with CO2 are shown in Figures 2 and 3. Choose the letter of the best answer in each questions. 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 […] Coefficient of Performance – Refrigerator, Air Conditioner. Comparison Between Disc Brake & Drum Brake, TOM, Mechanical Engineering, GATE, Syllabus - Mechanical Engineering : ME, GATE, What is Cams & Followers, TOM, Mechanical Engineering, GATE, Mechanical Properties of Engineering Materials, Heat Pump & Refrigeration Cycles And Systems - MCQ Test 1, Heat Pump & Refrigeration Cycles And Systems - MCQ Test 2. Efficiency of a Cornot engine is given as 80%. Q1. 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. In The COP of the Carnot refrigerator is: The COP of a Carnot refrigeration cycle decreases on, Decreasing the difference in operating temperatures, Keeping the upper temperature constant and increasing the lower temperature, Increasing the upper temperature and keeping the lower temperature constant, Increasing the upper temperature and decreasing the lower temperature. 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. 1. 30 seconds . In a refrigeration cycle, the flow of refrigerant is controlled by_____? 89. A refrigeration Carnot-type cycle based on isothermal compression and two reversible expansions is proposed. The Cannot coefficient of performance of cycle will be A. TOP Refrigeration and Air Conditioning - MCQ Practice Test: Question Set - 05 1. A. compressor ... PakMcqs.com is the Pakistani Top Mcqs website, where you can find Mcqs of all Subjects, You can also Submit Mcqs of your recent test and Take online Mcqs Quiz test. mechanical refrigeration system, the refrigerant has the maximum temperature, Moisture (10) Answer: Option B What is the minimum power (approximate) required driving the heat pump? 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. Both A and R are individually true and R is the correct explanation of A. Tags: Question 8 . Cycle Refrigeration System''books on hvac multiple choice questions June 18th, 2018 - Multiple choice Polldaddy Support Multiple choice sample questions The multiple choice question type is a very useful question type that Refrigeration and Air Conditioning Mcqs for Preparation of Fpsc, Nts, Kppsc, Ppsc, and other test. However means of compression. The sub-cooling in a refrigeration cycle. So, COP R = Q C over W ref. (9) Answer: Option B R.K Jain MCQ Part-1(1-50) !! Expansion. Assertion (A ):Power input per TR of a refrigeration system increases with decrease in evaporator temperature. ... 16 Ammonia-absorption refrigeration cycle requires A very little work input. refrigeration basics quiz questions hvac certification. Vapour Compression Refrigeration Cycle - MCQs with Answers Q1. Mechanical Engineering (4) Answer: Option B It is a compression process, whose aim is to raise the refrigerant pressure, as it flows from an evaporator. In a refrigeration cycle, heat is rejected by the refrigerant in a (A) expansion valve (B) condenser (C) compressor (D) evaporator. Vapor absorption refrigeration is also a vapor compression system. (5) Answer: Option C If a heat pump is operated between same temperature range, then what would be its COP? What is the function of Compressor in an AC refrigeration cycle? Home; A After passing through the condenser . The ratio of the highest absolute temperature to the lowest absolute temperature is: Assertion (A): The coefficient of performance of a heat pump is greater than that for the refrigerating machine operating between the same temperature limits. free download here pdfsdocuments2 com. If cooling capacity of the plant is 2.4 kW then what is the work requirement? 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. horizontal and non-uniformly spaced lines on a psychrometric chart indicates, It 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. mcqs preparation for engineering Find the work possess for a helium gas at 20°C. Compression. The solved questions answers in this Heat Pump & Refrigeration Cycles And Systems - MCQ Test 1 quiz give you a good mix of easy questions and tough questions. 1.2 C. 5 D. 6 E. 10 ANSWER: C 15. (6) Answer: Option C vapour, During Practice Test: Question Set - 01 1. Part 3: List for questions and answers of Refrigeration and Air Conditioning. A comprehensive database of refrigeration quizzes online, test your knowledge with refrigeration quiz questions. A After passing through the condenser . Jan 11,2021 - Heat Pump & Refrigeration Cycles And Systems - MCQ Test 2 | 30 Questions MCQ Test has questions of Mechanical Engineering preparation. This cycle may be thought of as a modification of reversed Carnot cycle, as the two isothermal processes of Carnot cycle are replaced by two isobaric heat transfer processes. Vapour Compression Refrigeration Cycle - MCQs with Answers Q1. Mechanical Engineering MCQ Question Papers: DRDO, ISRO, Interview. D. orange. These questions help in your NEET 2021 preparation. gk mcqs. Compresses gas to ensure circulation. COP of Carnot refrigerator    will decrease if upper temperature  T1 is  Condensation. Evaporator Temperature = 273 – 30 = 243 K, A Carnot heat pump works between temperature limits of 277º C and 27º C. Its COP is. Both A and R are individually true but R is not the correct explanation of A, Both A and R are individually true and R is the correct explanation of A. considerably reduces mass of the system, It The refrigerating efficiency that is the ratio of actual COP to reversible COP of a refrigeration cycle is 0.8, the condenser and evaporator temperatures are 50°C and –30°C respectively. 5 (b) 2. It condenses the refrigerant vapor to … The result is a useful equation for calculating the COP R. Air in an ideal Diesel cycle is compressed from 3 L to 0.15 L and then it expands during the constant pressure heat addition process to 0.3 L. The power (kW) required per ton of refrigeration is  where COP is the coefficient of performance, then N is equal to: This mock test of Heat Pump & Refrigeration Cycles And Systems - MCQ Test 1 for Mechanical Engineering helps you for every Mechanical Engineering entrance exam. 95 top refrigeration and air conditioning mechanical. Pick up the wrong statement. 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 ... 35. Correct Answer. Ans: b 2. a) refrigerant b) absorbent c) both of the mentioned d) none of the mentioned View Answer (11) Answer: Option A 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. Refrigeration And Air Conditioning MCQ question is the important chapter for a Mechanical Engineering and GATE students. The refrigeration cycle is shown in Figure 3 and 4 and can be broken down into the following stages: § 1 – 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. increased and T2 keeping const. Option – c) 12)Clapeyron equation is a relation between (a) temperature, pressure and enthalpy This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Absorption Refrigeration Cycle”. Converts gas into liquid. This refrigeration system components consists of a compressor, cooler, expander, and refrigerator. A heat pump operating on Carnot cycle pumps heat from a reservoir at 300 K to a reservoir at 600 K. The coefficient of performance is: Assertion (A): Heat pump used for heating is a definite advancement over the simple electric heater. Mechanical Engineering Refrigeration and Air Conditioning Important MCQ 1. Reduces temperature of refrigerant. Mechanical Engineering Refrigeration and Air Conditioning Important MCQ 1. That so why it’s COP is higher but work requirement is same for both the machine. The required input is the work input, W ref. Refrigeration & Air Conditioning MCQ Questions Mechanical Engineering . Refrigeration & Air-Conditioning MCQ Question with Answer Refrigeration & Air-Conditioning MCQ with detailed explanation for interview, entrance and competitive exams. Refrigeration Cycles - Mechanical Engineering (MCQ) questions and answers. 201. Vapour Compression Refrigeration Cycle is the most widely used refrigeration system.In this system, the working fluid is a vapor. Answer B. MCQ No - 2. Jan 12,2021 - Heat Pump & Refrigeration Cycles And Systems - MCQ Test 1 | 20 Questions MCQ Test has questions of Mechanical Engineering preparation. mcq refrigeration and air conditioning 2 mcq s for. Compression. Figure 2 is a pressure-enthalpy diagram for R-134a in a traditional vapor compression refrigeration cycle. 5 (c) 3.5 (d) None; ANS:(a) The ratio of maximum shear stress to average shear stress in a beam of circular section is long questions & short questions for Mechanical Engineering on EduRev as well by searching above. INFO. The vapour compression refrigerator employs the following cycle (A) Rankine (B) Carnot (C) Reversed Rankine (D) Reversed Carnot. Jan 08,2021 - Refrigeration Cycles And Systems - 1 | 10 Questions MCQ Test has questions of Mechanical Engineering preparation. Next we use the 1st Law to eliminate Wref from the equation. Q. It condenses the refrigerant vapor to … a. throttling valve b. capillary tube c. either throttling valve or capillary tube d. none of the above View Answer / Hide Answer. The minimum outside temperature is –23°C. Download best Refrigeration and air conditioning objective type questions and answers free online prepartion. View Answer: Answer: Option C. In absorption refrigeration cycle, which of the following is used? Condensation. A refrigerator based on reversed Carnot cycle works between two such temperatures that the ratio between the low and high temperature is 0.8.

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