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ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) Which one of the following is used as a refrigerant? In this page you can learn various important multiple choice questions on ic engine,mcq on ic engine, objective type questions on ic engines,ic engine short questions etc. compression, condensation, expansion, evaporation) in the refrigeration system absorb heat from a low temperature system and discard the heat so absorbed to a higher temperature system. 59. The refrigerant is a heat carrying medium which during their cycles (i.e. 10. 76. R-134a is the most commonly used refrigerant for automotive applications rather it be your twenty year old Toyota Camry or your Kenworth T-200 semi-truck. 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Check the below NCERT MCQ Questions for Class 11 Chemistry Chapter 8 Redox Reactions with Answers Pdf free download. – Refrigerant R134a is a hydro fluorocarbon (HFC) that has zero potential to cause the depletion of the ozone layer and very little greenhouse effect. Q1. We have provided Redox Reactions Class 11 Chemistry MCQs Questions with Answers to help students understand the concept very well. d. Benzol. Q.Which of the the following refrigerant has the highest freezing point Carbon dioxide Ammonia Frion 12. Advantages of R134a refrigerant over R-12. Ans. C. One tonne of water can be converted into ice. Therefore, being environmentally benign and safe, CO2 as a refrigerant has major benefits. The Following Section consists Multiple Choice Questions on Automobile Engineering. – R134a is the nonflammable and non-explosive, has toxicity within limits and good chemical stability. 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