(Ans: d), The pressure inside the flash chamber of a Steam Jet Refrigeration System is, The range of temperature inside the flash chamber of a Steam Jet Refrigeration System is, The mass of steam required required per kg of water vapor removed from the flash chamber in a steam jet refrigeration system is, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window). (Ans:c), In vortex-tube refrigeration, cooling effect is produced by The maximum constant load torque under which a synchronous motor will pull into synchronism at rated rotor supply voltage and frequen... Q.1. Pick up the wrong statement. (a) Latent heat 1 TR = 1000 Kg of ice = 1000 x 335 KJ/Kg : LH of (b) Below OoC This effect adds heat to the cabin, which needs to be taken out by the cooling system. (B) the cooling effect produced by melting of 1 ton of ice (C) the refrigeration effect to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours (D) the refrigeration effect to produce 1 … (c) Air-craft Multistage Refrigeration • Cooling effect is achieved when liquid refrigerant vaporizes by absorbing heat from the cold space. ASWDC (App, Software & Website Development Center) Darshan Cooling water is required for following equipment in ammonia absorption plant (a) condenser (b) evaporator (c) absorber (d) condenser and absorber (e) condenser, absorber and separator (rectifier). (b) Boyle’s Law Try this amazing Heating, Ventilation And Air Conditioning Ultimate Trivia Quiz quiz which has been attempted 268 times by avid quiz takers. (c) Cooling beverages Jan 15,2021 - Vapour Compression Systems, Refrigerants - MCQ Test 1 | 20 Questions MCQ Test has questions of Mechanical Engineering preparation. (b) Open the circuit . What is Three Winding Transformer? Steam jet, Thermo-electric cooling are non conventional methods of refrigeration. (d) None (d) None (c) Sensible heat When two refrigerating cycles are used in series with two different refrigerants, the system is known as a. dual refrigeration system b. cascade refrigeration … (Ans: d), Boot strap system of refrigeration is used in (c) Sensible heat )Maximum c.)Zero✔ d.)Cannot... . (d) None At the same time the power required for compressor also reduced. (a) Latent heat Important Points About The V-I Characteristics of SCR Forward Characteristics When anode is positive w.r.t. Manufacturer of Refrigeration And Air Conditioning Lab Equipment - RAC Components Cut Sections Display & Accessories, Vapour Compression Refrigeration System Test Rig, Cut Section Of Compressor and Cascade Refrigeration Test Rig offered by Xtreme … Cogging b.) While designing air craft refrigeration system, the most important aspect is The high-stage evaporator is in heat t (a) Cooling water (c) OoC The sub-cooling in a refrigeration cycle Does not alter C.O.P Increases C.O.P Decreases C.O.P 6. a.) (Ans:c), Dry ice is used for )Minimum b. (a) Perfect gas equation Cooling effect is caused by latent heat in vapor refrigeration while by sensible heat in gas A. the standard unit used in refrigeration problems B. the cooling effect produced by melting 1 ton of ice C. the refrigeration effect to freeze 1 ton of water at 0 C into ice at 0 C in 24 hours D. the refrigeration effect to produce 1 ton of A cascade vapor compression refrigeration system having a high stage and a low stage, each stage having a compressor, evpaorator, condenser and expansion device. (a) Core loss (b) Friction loss✔ (c) Eddy current loss ... Q.101. Impulse turbine✔ c.) Both A and B d.) None of these Q.2. One ton of the refrigeration is (A) The standard unit used in refrigeration problems (B) The cooling effect produced by melting 1 ton of ice (C) The refrigeration effect to freeze 1 ton of water at 0 C into ice at 0 C in 24 hours (D) The (b) HP/ton of refrigeration should be less Cooling duties useful to cool down a process stream below the ambient temperature are produced by means of vapor-compression refrigeration cycles. (a) Latent heat This effect is called as RAM EFFECT. (c) Charles Law This blogspot specially made for study for Electrical engineering exams. Unit of refrigeration is TR (ton of refrigeration) It is defined as the amount of refrigeration effect produced by uniform melting 0of one ton of ice at 0 C with in 24 hours. cathode, the curve betw... Delectable Living . Also explore over 22 similar quizzes in this category. Yang et al. (iv) Solar radiations Even though the COP of air cycle refrigeration is very low compared to that of vapor (c) Sensible heat (d) None One ton of the refrigeration is (A) The standard unit used in refrigeration problems (B) The cooling effect produced by melting 1 ton of ice (C) The refrigeration effect to freeze 1 ton of water at 0 C into ice at 0 C in 24 hours One of the main application of Magneto-resistor a.) He... Q.101. (d) None (b) Total heat Thermoelectric Refrigeration: An Introduction Thermoelectric cooling uses the Peltier effect to create a heat flux between the junctions of two different types of materials. (b) Cooling milk (b) Total heat (d) None The phase different between current and voltage is 90° , the real power will be a. (d) None 14.2. MCQ on non conventional refrigeration are very helpful. B. (a) Latent heat (1 ton = 211kJ/min of cooling effect). Ans: b 2. Cooling capacity is the cooling produced per minute. (a) COP should be high In Cascade refrigeration, cooling effect is produced by (a) Latent heat (b) Total heat (c) Sensible heat (d) None (Ans:a) The ratio of COP of a two stage Cascade refrigeration system vs three stage cascade system is (a) < 1 As shown in Fig. This effect is commonly used in camping and portable (A) The standard unit used in refrigeration problems (B) The cooling effect produced by melting 1 ton of ice (C) The refrigeration effect to freeze 1 ton of water at 0 C into ice at 0 C in 24 hours (D) The refrigeration effect to produce work done, Refrigeration effect are the parameters studied from the system. (c) Sensible heat (a) the standard unit used in refrigeration problems (b) the cooling effect produced by melting 1 ton of ice (c) the refrigeration effect to freeze 1 ton of water at 0 C into ice at 0 C in 24 hours (d) the refrigeration effect to produce 1 ton (a) Refrigerator The United Nations report on Refrigeration Technical Options (1) takes the range of sizes for industrial systems as 10 kW to 10 MW of refrigerating effect, at cooling temperatures ranging from -50 C …  Acoustic refrigerators are refrigerators that use resonant linear reciprocating motors/alternators to generate a sound that is converted to heat and cold using compressed helium gas.  proposed a cascade refrigeration process that integrated a LiBr absorption refrigeration with a NH 3 absorption refrigeration for applications to a coal-to-SNG plant. Ans: e 89. However, for rich gas, such as shale gas, with a higher ethane content, a lower refrigerant temperature is required to meet the pipeline gas heating value specifications. Importance of Reactive power for power system Introduction 》We always in practice to reduce reactive power toimprove system effic... What is Tertiary Winding? (b) Total heat 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. Rectification b.) (a) Above Oo C Which of the following loss in a transformer is zero even at full load ? The cooling effect is triggered by placing a metal alloy in a magnetic field. Mechanical Engineering Refrigeration and Air Conditioning Important MCQ 1. 14 Refrigeration Cycles 14.1. Refrigeration And Air Conditioning MCQ question is the important chapter for a Mechanical Engineering and GATE students. (Ans:a), In a Thermo-electric refrigeration, cooling effect is produced by Q.1 The main function of a fuse is to (a) Protect the line . (b) Total heat The mechanical energy needed to drive compressors for the refrigeration cycle 11.2.2 Cascade Refrigeration Propane refrigeration can produce refrigeration at −40°F, which is adequate for the hydrocarbon dew point controlling operation for pipeline gas applications. (d) None One ton of the refrigeration is a) The standard unit used in refrigeration problems b) The cooling effect produced by melting 1 ton of ice c) The refrigeration effect to freeze 1 ton of water at 0 C into ice at 0 C in 24 hours d) The Refrigeration is measured in tons of refrigeration. Reaction turbine b.) cooling effect can be achieved by using the same power input. This test is Rated positive by 88% students preparing for Mechanical Engineering.This MCQ test is related In steam-jet refrigeration, cooling effect is produced by Theme images by, Importance of Reactive Power for Power System, Solved questions preview paper (2) 101-150, Diffrence between Active and passive component. (a) Latent heat In some high rating transformer, one winding in addition to its primary ... 121. Simple theme. (Ans:a), In vapor absorption refrigeration, cooling effect is produced by (Ans: d) (c) Protect the appliance . (c) Weight of refrigeration equipment per ton should be high (d) None (Ans: a), Steam vapors follow In a cascade refrigeration system where low pressure vapor from an evaporator stage is compressed and then recycled for condensation to the evaporator of a previous stage, the improvement of passing t The refrigeration effect (d) Prevent exc... Q.51. Page-7 section-1 Page-7 section-1 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. (Ans:c) https://www.mesubjects.net/wp-admin/post.php?post=4410&action=edit Open and Hermetically sealed compressor units, https://www.mesubjects.net/wp-admin/post.php?post=5067&action=edit Refrigeration equipment-2, https://www.mesubjects.net/wp-admin/post.php?post=5065&action=edit Refrigeration equipment-1, https://www.mesubjects.net/wp-admin/post.php?post=4198&action=edit MCQ Vapor Compression Refrigeration, Steam-jet water vapor refrigeration is used for creating temperatures (c) Sensible heat MCQ Topic Outline included in ME Board Exam Syllabi MCQ in Principles of Different Refrigeration Systems MCQ in Determination of Cooling Loads MCQ in Basic Design of Ice Plants, Cold Storage and Skating Rinks MCQ in 5. (b) Ship Fundamentals of refrigeration : Introduction—Elements of refrigeration systems— Refrigeration systems—Co-efficient of performance (C.O.P. (b) Total heat Refrigeration & Air-Conditioning MCQ Question with Answer Refrigeration & Air-Conditioning MCQ with detailed explanation for interview, entrance and competitive exams. (Ans:c), In Pulse-tube refrigeration, cooling effect is produced by The refrigerant, commonly used in vapour absorption refrigeration system, is Sulphur dioxide Ammonia Freon Aqua-ammonia Refrigerants - MCQs with Answers Q1. 65. The phenomenon of squirrel cage motor some time showing a tendency to run at a very low speed is known as a.) The concept is that the cooling produced in first cycle evaporator is used to cool the condenser of second cycle, which reduces the cooling capacity in Air (d) None )—Standard rating of refrigeration machine. Craw... 1. Pelton wheel is which type of turbine? Performance Improvement Techniques Cascade refrigeration system In cascade 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.
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