This set of Refrigeration Multiple Choice Questions & Answers (MCQs) focuses on “Refrigerants – Designation System”. 1. What is the meaning of using two digits after the R letter? a) The base of refrigerant b) Number of molecules c) Number of refrigerants in mixture d) Number of isotopes 2. What is the meaning of using … Read more
This set of Refrigeration Multiple Choice Questions & Answers (MCQs) focuses on “Refrigerants – Physical Properties”. 1. What is the temperature till which Freon group refrigerants remain stable? a) 545°C b) 535°C c) 555°C d) 565°C 2. From the following refrigerants, which is one of the most stable refrigerants? a) Ammonia b) R – 12 … Read more
This set of Refrigeration Multiple Choice Questions & Answers (MCQs) focuses on “Refrigerants – Chemical Properties”. 1. What is right about the flammability of halo-carbon refrigerants? a) They possess low flammable properties b) They possess incredibly high flammable properties c) They are not flammable d) They possess little flammable properties 2. What is right about … Read more
This set of Refrigeration Multiple Choice Questions & Answers (MCQs) focuses on “Refrigerants – Thermodynamic Properties”. 1. Among the following refrigerants, which is having the lowest freezing point? a) R – 21 b) R – 11 c) R – 12 d) R – 22 2. What is the boiling point of Ammonia at atmospheric pressure? … Read more
This set of Refrigeration Multiple Choice Questions & Answers (MCQs) focuses on “Classification of Refrigerants”. 1. Which of the following is not the type of refrigerant? a) Organic refrigerants b) Inorganic refrigerants c) Azeotrope refrigerants d) Halo-helium refrigerants 2. When refrigerants take a direct part in the refrigeration system, then these types of refrigerants are … Read more
This set of Refrigeration written test Questions & Answers focuses on “Multiple Evaporators and Compressor System – 2”. 1. What is the value of enthalpy when refrigerant enters the compressor, i.e., point 1? a) m1 h11 + m2 h8 + m3 h5 / (m1 + m2 – m3) b) m1 h11 + m2 h8 + … Read more
This set of Refrigeration Multiple Choice Questions & Answers (MCQs) focuses on “Multiple Evaporators and Compressor System – 1”. 1. Multiple evaporator system is used to maintain different temperatures at different points. a) False b) True 2. Vegetables, Fruits, Frozen products can be maintained at the same temperatures and humidity. a) False b) True 3. … Read more
This set of Refrigeration Question Paper focuses on “Domestic Electrolux and Lithium Bromide Refrigeration System – 2”. 1. What is the key difference between a simple VAR and Electrolux refrigerator? a) Absorber b) Liquid pump c) Working mechanism d) Generator 2. What is the other name for Electrolux refrigerator? a) Single-fluid absorption system b) Two-fluid … Read more
This set of Refrigeration Multiple Choice Questions & Answers (MCQs) focuses on “Domestic Electrolux and Lithium Bromide Refrigeration System – 1”. 1. Which one of the refrigerant is not used in the domestic Electrolux? a) Ammonia b) Water c) Hydrogen d) Freon – 12 2. What is water used for in the Domestic Electrolux? a) … Read more
This set of Refrigeration Assessment Questions and Answers focuses on “Coefficient of Performance of Ideal VAR System – 2”. 1. What is the fundamental equation of the C.O.P. of Ideal VAR system? a) Heat absorbed in the evaporator / Work done by a pump b) Heat absorbed in the evaporator / Heat supplied in the … Read more
