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. B Saturation point of liquid . This test comprises of 50 questions on Thermodynamics. MCQ Refrigeration Edit Practice Test: Question Set - 01. This video is unavailable. Page-2 section-4 (b) ≥ Two 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. (c) Vapor absorption refrigeration 201. Ans: a 6. (c) Four stage If a type 0 system is subjected to step input, what is its effect on steady state error? Chemical Engineering. B. type UF. (d) None (a) Greater than that for a cascade refrigeration (d) None (c) Four stage D. type USE. These short objective type questions with answers are very important for competitive exams. India – https://amzn.to/3kLzZ5g / USA – https://amzn.to/3qivm5J “Process Systems Analysis and Control” by Coughanowr & Donald R. India – https://amzn.to/3mVBIqD / USA –https://amzn.to/3nuGOZW. Watch Queue Queue. Multiple Choice Question (MCQ) – Process Control. Refrigeration And Air Conditioning MCQ question is the important chapter for a Mechanical Engineering and GATE students. View Answer: Answer: Option C. Solution: 202. Ans: b 2. ELECTRICAL ENGINEERING IMPORTANT MCQ-BASIC ELECTRICAL PART THREE. 0. Mechanical Engineering. Cascade refrigeration is applicable to (a) Air refrigeration (b) Vapor compression refrigeration (c) Vapor absorption refrigeration (d) None (Ans: b) 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 These short solved questions or quizzes are provided by Gkseries. Two-three-four stage systems are in use. Mechanical Engineering Refrigeration and Air Conditioning Important MCQ 1. a) It increases continuously. (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. 2. Refrigeration and Air Conditioning Refrigeration and Air Conditioning. 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. 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. ANSWER KEY-Correct answer is indicated by symbol (V) in options. It is preceded by @ followed by A-Z, a-z or 0-9. (d) None The ammonia provides 15 tons of cooling. Ans: d 5. Two-three-four stage systems are in use. (a) Two stage Subject: Control Systems 5. (b) Evaporator of low temperature b) it remains constant. 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) Air refrigeration HINTS-In some questions options E-HINTS is indicating the hints of answer. Carnot Cycle Process: The Carnot cycle consists of Two Isothermal Processes and Two Adiabatic Processes. A. saturation point of vapor B. saturation point of liquid C. sublimation temperature D. triple point E. critical point. (c) Mix when in the vapor state (b) Less than that for a cascade refrigeration Part 5: List for questions and answers of Control Systems . (Ans: c), The refrigerants used in cascade refrigeration (c) Zero Electronic Engineering MCQ Question Papers: ENTC, IT Interview Placement. Multi-Stage Vapour Compression Refrigeration Systems; Multi-Evaporator And Cascade Systems. Dec 16,2020 - Test: Refrigeration And Air Conditioning -1 | 25 Questions MCQ Test has questions of Mechanical Engineering preparation. In a refrigeration cycle, the flow of refrigerant is controlled by (A) Compressor (B) Condenser (C) Evaporator (D) Expansion valve. (d) None 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 […] Correct Answer. (a) Cold storage 50. 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. (a) ≤ One (d) None 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. Refrigeration And Air Conditioning MCQ question is the important chapter for a Mechanical Engineering and GATE students. The value of C.O.P in vapour compression cycle is usually (A) Always less than unity (B) Always more than unity (C) Equal to unity (D) Any one of the above. reciprocating air compressor is best suited for mcq. (d) None Properties can be a set in recommended places and the document modified for … C. type MI. b. cascade refrigeration system c. vapour absorption refrigeration system d. none of the above View Answer / Hide Answer. 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. 50 Hz compressor has RPM 3000. In a cascade system the high/medium temp … A two stage cascade vapor compression refrigeration system uses ammonia in the low temperature loop and R-12 in the high-temperature loop. 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 … Ans: d 5. Medical Science Engg. The evaporation-condensation temperatures of each cycle are sequentially lower … Computer Engineering. (c) Sensible heat A Saturation point of vapour . Which of the following methods is easily applicable to control the speed of the squirrel cage induction motor? Some refrigerants are well suited for high and medium temperature applications, and some are better suited and for a lower temp applications. Electrical Engineering. Refrigeration & Air-Conditioning MCQ with detailed explanation for interview, entrance and competitive exams. Which of the following conductors is applicable for underground service entrance conductors? (b) Do not mix with each other Clapeyron equation is applicable for registration at_____? RME Board Exam 1995 . What is the device in a transistor oscillator? TOP Refrigeration and Air Conditioning -Mechanical Engineering Multiple choice Questions and Answers ListBell-coleman (e) none of the above. TOP Refrigeration and Air Conditioning -Mechanical Engineering Multiple choice Questions and Answers ListBell-coleman (e) none of the above. View Answer Discuss. Rule, which is applicable in the entire sheet and not partly, is known as at-rule. 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. (Ans: b), In Cascade refrigeration, cooling effect is produced by Vapour Compression Refrigeration Systems:Performance Aspects And Cycle Modifications. B. Biasing circuit. Cascade Control guidelines are presented for continuous systems but are applicable to digital con trol systems. 2. 1) The equation for 25 cycles current sine wave having rms value of 30 amps, will be A [v]) 42.4sin50πt. 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. c) It decreases monotonically View Answer: Answer: Option D . C. Transistor. (b) Total heat C Sublimation temperature . D. Feedback circuit. Go To Download Page Close. A cascade refrigeration cycle is a multi-stage thermodynamic cycle. D Triple point . Cascade refrigeration is an extension of vapor compression refrigeration in order to achieve lower temperatures. Electronics Engineering. Harikesh Yadav November 8, 2016 EE MCQ PDF, General. Vapour Compression Refrigeration Systems: Performance Aspects And Cycle Modifications; Multi-Stage Vapour Compression Refrigeration Systems. mcq-Refrigeration-Cascade Cascade refrigeration is an extension of vapor compression refrigeration in order to achieve lower temperatures. The chapter concludes with common examples that highlight the importance of conforming to the design criteria. MCQ in Voltage Regulation; Continue Practice Exam Test Questions Part 5 of the Series. 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. (Ans: b), Cascading refrigeration is applicable for 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. Home. 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. (b) Comfort air conditioning 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. Automobile Engineering . What is the desirable characteristics of a refrigerant? (d) None Q2. (ANs: b), For achieving -500C temperature, cascade refrigeration used is 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. Choose the letter of the best answer in each questions. which will improve your skill. 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. A. saturation point of vapor B. saturation point of liquid C. sublimation temperature D. triple point E. critical point. Applications of CO 2 Refrigeration System Main Feature Safety NH 3 in the high temperature part only, extremely small charging volume of NH3; CO 2 is safe, nontoxic and noninflammable, thus ensuring the safety of people and food. (d) None 2. 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. Clapeyron equation is applicable for registration at_____? A. LC tank circuit. (Ans: c), In cascade refrigeration, condenser of low temperature refrigeration is coupled with It is applicable for perfect gas whose efficiency is considered to be maximum. In vapor compression cycle, the condition of refrigerant is very wet vapor_____? Gonit Sora is an attempt to bridge the gap between classroom math teaching and real life practical and fun mathematics. (c) Four stage Unlike other refrigerants, natural refrigerants are non-synthetic and can be found in nature. Refrigeration And Air Conditioning MCQ question is the important chapter for a Mechanical Engineering and GATE students. (a) Latent heat (Bottom on mobile) The cascade cycle is often employed for devices such as ULT freezers. 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. (Ans:a), The COP of a single stage vapor compression refrigeration working between the same temperature limits is (a) Two stage Both these processes are reversible and therefore It is the most efficient cycle, as it involves no losses. (c) Low temperature applications in the rotor circuit d) By changing the number of stator poles Electricalunits.com. a) Rotor rheostat control b) By operating two motors in cascade c) By injecting an e.m.f. (Ans: a), For achieving -800C temperature, cascade refrigeration used is The condition not applicable to water cement ratio law, is ... I.C Engines Multiple Choice Questions with Answers - Set 02. 1. Important MCQ of GST By CA Vivek Gaba (Expected in Exam) 1. Civil Engineering. 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. (b) Vapor compression refrigeration Cascade refrigeration is applicable to 3. Solution: 7. It was proposed by 'Sadi Carnot' in 1824. 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. (c) Condenser of high temperature NH 3: ODP=0, GWP=0; CO 2: ODP=0, GWP=1; Energy saving NH 3 is the refrigerant … We strive for the popularization of mathematics teaching … (a) Two stage Correct Answer. Menu. 1. 0. In a cascade refrigeration system, two or more vapor-compression cycles with different refrigerants are used. (d) None A Vapor Compression Refrigeration system has a 281W, 50 Hz compressor with displacement 11.1 cm3/rev. Vapor Compression refrigeration -2. Clapeyron equation is applicable for registration at_____? ANSWER: b. cascade refrigeration system . 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 … ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) (Ans: b), For achieving -1000C temperature, cascade refrigeration used is (d) None MCQ-CASCADE REFRIGEARTION. Refrigeration & Air-Conditioning MCQ Question with Answer ... Chaperon equation is applicable for registration at . 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. (c) Equal to that of a cascade refrigeration Free download in PDF Refrigeration and Air Conditioning Multiple Choice Questions and Answers for competitive exams. Correct Answer : … 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. type THWN. Q1. (a) Mix with each other 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). (b) Three stage What is Cascade refrigeration? Watch Queue Queue Two-three-four stage systems are in use. 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. Mcq Added by: Muhammad Bilal Khattak. Home دسته‌بندی نشده reciprocating air compressor is best suited for mcq. An example two-stage process is shown at right. Environmental protection Both NH 3 and CO 2 are nature refrigerant. (Ans: b), In cascade refrigeration, number of refrigerants used is Some refrigerants are well suited for high and medium temperature applications, and some are better suited and for a lower temp applications. The heat is carried from system A to system B due to temperature variation. If the high-loop temperature requires 10.12 kW compressor power and low loop 15.93 kW, determine the COP of the system. How can CSS be cascaded to mix with user’s personal sheet? Standard books for the Instrumentation and Process Control “Process Dynamics and Control” By Seborg, Edgar & Mellichamp. 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. Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams. 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As at-rule b due to temperature variation www.gtu-mcq.com is an extension of vapor B. saturation point of C.! Nature refrigerant in 1824 an attempt to bridge the gap between classroom math teaching and real life and! Ca Vivek Gaba ( Expected in Exam ) 1 refrigeration cycle is a multi-stage thermodynamic cycle multi-stage cycle... And Diploma Engineering students of the following conductors is applicable in the Rotor circuit d By... Papers: ENTC, it Interview Placement preparation of the MCQ Test has Questions of Engineering... A type 0 system is subjected to step input, what is its on. By symbol ( V ) in options an e.m.f Option C. Solution: 202, the condition not to! Cascade cycle is a multi-stage thermodynamic cycle ; multi-stage vapour Compression refrigeration in order to lower...

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