c) both of the mentioned (1 ton = 211kJ/min of cooling effect). ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) 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. The heat flow in the system at generator, and work is supplied to pump. In lithium bromide system, water is used as the refrigerant, which is also available cheap. Wet compression is _____. Explanation are … a cooling substance, as ice or solid carbon dioxide, used in a refrigerator, ), and Natural Refrigerants. (c) Freon-22. During a refrigeration cycle, heat is rejected by the refrigerant in a. Refrigeration & Air-Conditioning MCQ Question with Answer Refrigeration & Air-Conditioning MCQ with detailed explanation for interview, entrance and competitive exams. The vapour absorption refrigeration system is, a. more noisy than the vapour compression refrigeration system, b. more silent than the vapour compression refrigeration system, c. equally noisy as the vapour compression refrigeration system, ANSWER: b. more silent than the vapour compression refrigeration system, Q11. What is the value of the … ANSWER: c. either throttling valve or capillary tube . Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07 MCQ Refrigeration Edit Practice Test: Question Set - 07. The mechanical work required to run vapour absorption system, a. is more than the mechanical work required to run vapour compression system, b. is less than the mechanical work required to run vapour compression system, c. is similar to the mechanical work required to run vapour compression system, ANSWER: b. is less than the mechanical work required to run vapour compression system, Q2. (d) … Answer: b Nov 17,2020 - Refrigeration Cycles And Systems - 3 | 30 Questions MCQ Test has questions of Mechanical Engineering preparation. Q10. It is a low-pressure refrigerant that was commonly used in centrifugal chillers and before the 1970's it was used as a propellant for aerosols. Explanation: The reason is that water cannot be cooled below 0 degree Celsius. 1. ... Because the cycle works at very low pressure, the volumetric cooling capacity of water vapor is very low. The classification also depends on their chemical elements chlorine (Cl), hydrogen (H), carbon (C), and Florine (F). It is now being used as a replacement for. Answer: c Hence these systems are also called as heat operated or thermal energy driven systems. b) absorbent Thus an ideal vapour absorption refrigeration system can be considered to be a combined system consisting of a Carnot heat engine and a Carnot refrigerator as shown here: Thus the COP of an ideal VARS increases as generator temperature (Tg) and evaporator temperature (Te) increase and heat rejection temperature (To) decreases. a) low Ammonia vapors coming out of evaporator are drawn in absorber. a) ammonia vapour is absorbed in water Explanation: The absorber-generator assembly involves less mechanical work.  Space and Auto. Explanation: The saturation temperature of water is higher than ammonia at any given pressure. Explanation: This is the basic absorption refrigeration cycle. Explanation: When passing through analyser, the vapour is cooled and enriched by ammonia. d) none of the mentioned Which of the following condenses first? The COP of absorption refrigeration system is Explanation: The Cop of absorption refrigeration system is low, 11.In a vapour absorption refrigeration system the power is required for vapour compressor as compared to that in vapour compression cycle is, [A].More[B].Less[C].Half[D].One forth[E].There is no such relation, SSC-JE & RRB-JE(Mechanical) Full syllabus free video lectures:- https://www.4bengineers.com/post/ssc-je-rrb-je-free-full-video-lectures-mechanical-engineering, *******************************************************************, For College Info:-https://www.4bengineers.com/4bjobalert/categories/college-counselor, ******************************************************************, FOR NOTES AND STUFFS (Our Website):- https://www.4bengineers.com/, My Amazon Store for You:- https://www.amazon.in/shop/4bengineers?isVisitor=true, *************************************************************************, Telegram channel link:-https://t.me/ashish4Bengineers, **********************************************************************, For Job Updates :- https://www.4bengineers.com/4bjobalert, *************************************************************, Instagram:- https://www.instagram.com/4bengineers/?hl=en, Facebook:- https://www.facebook.com/4bengineers, ***************************************************************. Lithium Bromide absorption refrigeration system? 2.  Can work only with thermal energy as an input. Strong solution of aqua ammonia contains as much as ammonia as it can and weak solution contains less ammonia. Page-7 section-4 Page-7 section-4 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) ammonia vapour 7. Which device is used for the expansion of refrigerant in vapour compression refrigeration cycle? The compressor in the vapour compression system id replaced by. Mcq Test of Degree and Diploma Engineering students of the MCQ Test of Degree and Engineering. High-Ambient cooling applications, including overhead cranes b Explanation: the boiling point of and. Latest Multiple Choice Questions: -1, unlike vapour compression refrigeration cycle - mcq questions on vapour absorption refrigeration system... 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