(c) Equal to that of a cascade refrigeration (d) None A. type THWN. reciprocating air compressor is best suited for mcq. 0. a. it should not be toxic b. it should not be non-corrosive c. it should have minimum enthalpy of vaporization d. all of the above View Answer / Hide Answer. It is applicable for perfect gas whose efficiency is considered to be maximum. (a) Cold storage Ammonia-absorption refrigeration cycle requires (a) very little work input (b) maximum work input (c) nearly same work input as for vapour compression cycle (d) zero work input (e) none of the above. 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. Home MCQ Refrigeration Multiple Choice Questions on Refrigeration and Air-Conditioning - Set 08 Multiple Choice Questions on Refrigeration and Air-Conditioning - Set 08 MCQ Refrigeration Edit Practice Test: Question Set - 08. 3. Computer Engineering. A. LC tank circuit. In a refrigeration cycle, the flow of refrigerant is controlled by (A) Compressor (B) Condenser (C) Evaporator (D) Expansion valve. b) it remains constant. (c) Zero These short solved questions or quizzes are provided by Gkseries. View Answer: Answer: Option D . (a) Evaporator of high temperature Correct Answer. ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) 50 Hz compressor has RPM 3000. The evaporation-condensation temperatures of each cycle are sequentially lower … Energy-efficient CO2 cascade refrigeration system Designed utilising the subcritical refrigeration cycle in a cascade arrangement to refrigerate the low temperature group of merchandisers and freezers through direct expansion of the CO2 refrigerant (a) ≤ One (b) Evaporator of low temperature Analysis of Cascade Refrigeration System based on thermodynamic perspective The cascade vapour refrigeration system with high side and low side vapour refrigeration systems is given as namely A and B and is attached to one another via a heat exchanger. A two stage cascade vapor compression refrigeration system uses ammonia in the low temperature loop and R-12 in the high-temperature loop. Subject: Control Systems 5. (Ans: c), In cascade refrigeration, condenser of low temperature refrigeration is coupled with Cascade Control guidelines are presented for continuous systems but are applicable to digital con trol systems. Two-three-four stage systems are in use. HINTS-In some questions options E-HINTS is indicating the hints of answer. Some refrigerants are well suited for high and medium temperature applications, and some are better suited and for a lower temp applications. Refrigeration And Air Conditioning MCQ question is the important chapter for a Mechanical Engineering and GATE students. In vapor compression cycle, the condition of refrigerant is very wet vapor_____? (b) Do not mix with each other Rule, which is applicable in the entire sheet and not partly, is known as at-rule. 2. Clapeyron equation is applicable for registration at_____? TOP Refrigeration and Air Conditioning -Mechanical Engineering Multiple choice Questions and Answers ListBell-coleman (e) none of the above. Unlike other refrigerants, natural refrigerants are non-synthetic and can be found in nature. View Answer: Answer: Option C. Solution: 202. (a) Two stage ELECTRICAL ENGINEERING IMPORTANT MCQ-BASIC ELECTRICAL PART THREE. Vapor Compression Refrigeration-1, https://www.mesubjects.net/wp-admin/post.php?post=4100&action=edit      Vapor Compression Refrigeration Cycle Components, https://www.mesubjects.net/wp-admin/post.php?post=4095&action=edit       Q.A. In a cascade refrigeration system, two or more vapor-compression cycles with different refrigerants are used. Standard books for the Instrumentation and Process Control “Process Dynamics and Control” By Seborg, Edgar & Mellichamp. (b) Three stage Clapeyron equation is applicable for registration at_____? (Bottom on mobile) The cascade cycle is often employed for devices such as ULT freezers. (Ans:a), The COP of a single stage vapor compression refrigeration working between the same temperature limits is mcq-Refrigeration-Cascade Cascade refrigeration is an extension of vapor compression refrigeration in order to achieve lower temperatures. (d) None Medical Science Engg. Carnot Cycle Process: The Carnot cycle consists of Two Isothermal Processes and Two Adiabatic Processes. Cascade refrigeration is applicable to (a) Air refrigeration (b) Vapor compression refrigeration (c) Vapor absorption refrigeration (d) None (Ans: b) In cascade refrigeration, number of refrigerants used is (a) ≤ One (b) ≥ Two […] Gonit Sora গণিত চ’ৰা is a multi lingual (English and Assamese) web magazine devoted to publishing well written and original articles related to science in general and mathematics in particular. This video is unavailable. Compensation to states under GST (Compensation to States) Act , 2017 is paid by a) Central Government from consolidated fund of India b) Central Government from GST compensation fund of India c) Central Government directly from the collection of compensation cess d) GST Council under Constitution of India. Multi-Stage Vapour Compression Refrigeration Systems; Multi-Evaporator And Cascade Systems. in the rotor circuit d) By changing the number of stator poles Electricalunits.com. A Vapor Compression Refrigeration system has a 281W, 50 Hz compressor with displacement 11.1 cm3/rev. Which of the following conductors is applicable for underground service entrance conductors? Dec 16,2020 - Test: Refrigeration And Air Conditioning -1 | 25 Questions MCQ Test has questions of Mechanical Engineering preparation. Environmental protection Both NH 3 and CO 2 are nature refrigerant. Ans: a 6. Cascade refrigeration is an extension of vapor compression refrigeration in order to achieve lower temperatures. MCQ in Voltage Regulation; Continue Practice Exam Test Questions Part 5 of the Series. b. cascade refrigeration system c. vapour absorption refrigeration system d. none of the above View Answer / Hide Answer. Refrigeration And Air Conditioning MCQ question is the important chapter for a Mechanical Engineering and GATE students. Mcq Added by: Muhammad Bilal Khattak. 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. Part 5: List for questions and answers of Control Systems . Transformer Power System Protective Relay Basic Electrical Interview Questions & Answers MCQ. Questions on Thermodynamic Relations, Equilibrium and Stability, Vapour Power Cycles, Gas Power Cycles, Refrigeration Cycles, Psychrometrics, Steam Generators etc.1 mark is awarded for each correct answer and 0.25 mark will … 201. (c) Vapor absorption refrigeration (c) Low temperature applications Cascade refrigeration is a term you will hear more and more over the coming years, and while some of the systems may be very complex, the concept is actually pretty simple. 2. Q2. 50. Natural refrigerants are substances that serve as refrigerants in refrigeration systems (including refrigerators, HVAC, and air conditioning).They are alternatives to synthetic refrigerants such as chlorofluorocarbon (CFC), hydrochlorofluorocarbon (HCFC), and hydrofluorocarbon (HFC) based refrigerants. NH 3: ODP=0, GWP=0; CO 2: ODP=0, GWP=1; Energy saving NH 3 is the refrigerant … Harikesh Yadav November 8, 2016 EE MCQ PDF, General. (a) Two stage Free download in PDF Refrigeration and Air Conditioning Multiple Choice Questions and Answers for competitive exams. (a) Latent heat MCQ's Search Engine. Electronic Engineering MCQ Question Papers: ENTC, IT Interview Placement. The colour of the flame of halide torch, in case of leakage of Freon refrigerant, will change to (A) Bright green (B) Yellow (C) Red (D) Orange. Both these processes are reversible and therefore It is the most efficient cycle, as it involves no losses. Important MCQ of GST By CA Vivek Gaba (Expected in Exam) 1. (d) None Electrical Engineering. MCQ-CASCADE REFRIGEARTION. D. type USE. (Ans:a), The ratio of  COP of a two stage Cascade refrigeration system vs three stage cascade system is, In a 2 stage cascade refrigeration system, cooling effect occurs in the. Q25.The process of undercooling is generally brought about by (A) circulating more quantity of cooling water through the condenser (B) using water colder than the main circulating water (C) employing a heat exchanger (D) any of the above Answer (D). This test is Rated positive by 86% students preparing for Mechanical Engineering.This MCQ test is related to Mechanical Engineering syllabus, prepared by Mechanical Engineering teachers. Cascade refrigeration is an extension of vapor compression refrigeration in order to achieve lower temperatures. Refrigeration & Air-Conditioning MCQ with detailed explanation for interview, entrance and competitive exams. (a) Air refrigeration Watch Queue Queue (Ans: c), The refrigerants used in cascade refrigeration Correct Answer : … View Answer Discuss. Ans: b 2. Q3 : Cascade refrigeration is applicable to A-Vapor compression refrigeration B-Air refrigeration C-None D-Vapor absorption refrigeration-----Q4 : A cascade refrigeration system is designed to supply 10 tonnes of refrigeration at an evaporator temperature of -40°C and a condenser temperature of 36°C. Civil Engineering. Watch Queue Queue. Ans: d 5. Home دسته‌بندی نشده reciprocating air compressor is best suited for mcq. c) It decreases monotonically Automobile Engineering . Chemical Engineering. (d) None Refrigeration & Air-Conditioning MCQ Question with Answer ... Chaperon equation is applicable for registration at . Ammonia-absorption refrigeration cycle requires (a) very little work input (b) maximum work input (c) nearly same work input as for vapour compression cycle (d) zero work input (e) none of the above. Menu. RME Board Exam 1995 . 1) The equation for 25 cycles current sine wave having rms value of 30 amps, will be A [v]) 42.4sin50πt. (Ans: a), For achieving -800C temperature, cascade refrigeration used is What is the device in a transistor oscillator? Multiple Choice Questions and Answers on Control Systems Multiple Choice Questions and Answers By Sasmita January 9, 2020 1) Which terminology deals with the excitation or stimulus applied to the system from an external source for the generation of … (c) Condenser of high temperature (d) None (d) None B Saturation point of liquid . Cascade refrigeration is applicable to Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams. 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. 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. Question No : 64 A bootstrap air cooling system has, Question No : 65 Rick up the incorrect statement, Question No : 66 In refrigerators, the temperature difference between the evaporating refrigerant and the medium being cooled should be, Question No : 67 The bank of tubes at the back of domestic refrigerator is, Question No : 68 Chaperon equation is applicable for registration at, Question No : 69 The COP of a vapour compression plant in comparison to vapour absorption plant is, Question No : 70 The freezing point of R-12 is, Competitive Exam India | Copyright @2017-2018 | About Us | Contact Us, Hosting partner DigitalOcean - Click here to get $10 joining bonus, DigitalOcean - Click here to get $10 joining bonus. What is the desirable characteristics of a refrigerant? (b) Three stage MCQ Refrigeration Edit Practice Test: Question Set - 01. C. Transistor. (Ans: b), For achieving -1000C temperature, cascade refrigeration used is https://www.mesubjects.net/wp-admin/post.php?post=4188&action=edit         MCQ Vapor Absorption refrigeration-1, https://www.mesubjects.net/wp-admin/post.php?post=4105&action=edit       Q.A. 1. Clapeyron equation is applicable for registration at_____? Multiple Choice Question (MCQ) – Process Control. The condition not applicable to water cement ratio law, is ... I.C Engines Multiple Choice Questions with Answers - Set 02. In this page you can learn various important refrigeration and air-conditioning questions answers,sloved refrigeration and air-conditioning representation questions answers, refrigeration and air-conditioning mcq questions answers etc. (d) None How can CSS be cascaded to mix with user’s personal sheet? (b) Less than that for a cascade refrigeration (d) None 1. D Triple point . (ANs: b), For achieving -500C temperature, cascade refrigeration used is It is preceded by @ followed by A-Z, a-z or 0-9. Gonit Sora is an attempt to bridge the gap between classroom math teaching and real life practical and fun mathematics. The cascade refrigeration cycles are modelled using Aspen HYSYS v8.2 (Aspen Technology Inc., ... (where applicable), for both precooling and liquefaction cycle within a cascade cycle. (b) Comfort air conditioning What is Cascade refrigeration? B. Biasing circuit. Q1. ANSWER KEY-Correct answer is indicated by symbol (V) in options. The heat is carried from system A to system B due to temperature variation. D. Feedback circuit. A cascade refrigeration cycle is a multi-stage thermodynamic cycle. (a) Mix with each other (Ans: b), Cascading refrigeration is applicable for CASCADE REFRIGERATION Revised by: Frank Fulkerson, CMS Adapted from materials originally provided By: Charles C. E. Harris INTRODUCTION This section is devoted entirely to cascade systems, which are generally accepted for temperatures in the -58°F to -200°F (-50°C to -127.7°C) range. C Sublimation temperature . Vapour Compression Refrigeration Systems: Performance Aspects And Cycle Modifications; Multi-Stage Vapour Compression Refrigeration Systems. Conforming to the design criteria ) none of the following methods is easily applicable to Control the of... As at-rule solved Questions or quizzes are provided By Gkseries Power and low 15.93... In vapor Compression refrigeration in order to achieve lower temperatures 25 Questions MCQ Test has Questions of Mechanical Engineering and... 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