INFO. Next we use the 1st Law to eliminate Wref from the equation. Mechanical Engineering Refrigeration and Air Conditioning Important MCQ 1. MCQ No - 1. To improve the COP of a refrigeration system, the sub-cooling in the condenser should be (a) High (b) Low (c) Zero (d) None (Ans:a) The cooling effect is higher in a (a) Boot strap air refrigeration cycle (b) Bell column cycle (c) Vapor compression cycle (d) None (Ans: c) The boiling point of a liquid increases with the (a) Decrease of pressure 1. Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07. Evaporation. COP of Carnot refrigerator will decrease if upper temperature T1 is Pick up the wrong statement. The refrigeration effect in a dry evaporator compared to flooded evaporator in a similar plant is (a) same (b) more (c) less (d) more or less depending on ambient conditions (e) unpredictable. TOP Refrigeration and Air Conditioning - MCQ ... 35. (15) Answer: Option C. Practice Test: Question Set - 07 1. Home >> Category >> Mechanical Engineering ... a. the COP of gas-refrigeration cycle is lower than the COP of vapour compression cycle, for the same capacity mcqs preparation for engineering Refrigeration and air conditioning mcq questions converted 1. vapour, During A refrigerator based on reversed Carnot cycle works between two such temperatures that the ratio between the low and high temperature is 0.8. It is important to understand the differences between these two cycles. A After passing through the condenser . moisture present in it begins to condense, In In a refrigeration cycle, the flow of refrigerant is controlled by_____? If cooling capacity of the plant is 2.4 kW then what is the work requirement? The sub-cooling in a refrigeration cycle. Practice Test: Question Set - 16 1. Ans: c; The C.O.P. 4. 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 […] The refrigeration effect in a dry evaporator compared to flooded evaporator in a similar plant is (a) same (b) more (c) less (d) more or less depending on ambient conditions (e) unpredictable. Cooling towers – concept and types. (6) Answer: Option C Compresses gas to ensure circulation. Vapour Compression Refrigeration Cycle - MCQs with Answers Q1. Page-7 section-4 11) Large sized industrial air-conditioning plant are. sensible cooling of air, specific humidity, In It causes refrigeration from heat. a) refrigerant b) absorbent c) both of the mentioned d) none of the mentioned View Answer are different. of 4. Option – c) 12)Clapeyron equation is a relation between (a) temperature, pressure and enthalpy A heat pump operating on Carnot cycle pumps heat from a reservoir at 300 K to a reservoir at 600 K. 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(8) Answer: Option D (9) Answer: Option B gk mcqs. Reason (R): The heat pump is far more economical in operation than electric heater. View Answer: Answer: Option C. Refrigeration And Air Conditioning MCQ question is the important chapter for a Mechanical Engineering and GATE students. A refrigerator working on a reversed Carnot cycle has a C.O.P. A comprehensive database of refrigeration quizzes online, test your knowledge with refrigeration quiz questions. Pick up the wrong statement. Mechanical Engineering Refrigeration and Air Conditioning Important MCQ 1. Explanation are given for understanding. What is the minimum power (approximate) required driving the heat pump? Which device is used for the expansion of refrigerant in vapour compression refrigeration cycle? Efficiency of a Cornot engine is given as 80%. (14) Answer: Option C Compression. 1. Explanation are … D. orange. Jan 08,2021 - Refrigeration Cycles And Systems - 1 | 10 Questions MCQ Test has questions of Mechanical Engineering preparation. Vapour compression refrigeration cycle, Effect of Superheat and Sub-cooling, Performance calculations, Working principle of air cycle, vapour absorption system, and Thermoelectric refrigeration. 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 This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Vapor Compression Refrigeration Cycle-2”. (7) Answer: Option C c) Water Cooled.
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