(c) nearly same work input as for vapour compression cycle In vapor compression cycle, the condition of refrigerant is very wet vapor (b) Reversed Carnot cycle (b) theoretical COP/actual COP This app has more than 10,000 multiple choice questions and answers. Ans: d, 30. plz send me pdf of this question and answer, sir thanking you for this question answer, Your email address will not be published. (b) specific volume and enthalpy (a) domestic refrigerators (b) before passing through the condensei (c) air conditioning (d) expansion valve Ans: b, 67. Ans: c, 50. (a) Tow specific heat of liquid (b) more (e) sensing reduction in pressure. (a) results in loss of heat due to poor heat transfer (e) before entering the compressor. 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. (c) 1 to 2 h.p. Condensing temperature in a refrigerator is the temperature (d) Bell … (c) temperature and enthalpy In refrigerators, the temperature difference between the evaporating refrigerant and the medium being cooled should be (c) C02 (e) condenser, absorber and separator (rectifier). This contains 20 Multiple Choice Questions for GATE Refrigeration & Air Conditioning (mcq) to study with solutions a complete question bank. Reducing suction pressure in refrigeration cycle (c) takes place at constant entropy (a) 10% Online Test - Refrigeration & Air Conditioning Mcqs with answers and explanation for placement tests, other tests etc. per ton of refrigeration, (d)     2 to 5 h.p. (b) increases (c) indirect Required fields are marked *. Ans: b, 55. Ans: d, 21. (e) dry vapour. C. One tonne of water can be converted into ice. Question. Ans: a, 77. (a) liquid (c) equal to unity (a) ammonia vapour goes into solution (d) absorption (d) S02 (c) same Highest temperature encountered in refrigeration cycle should be (d) condenser and absorber 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. Absorption system normally uses the following refrigerant Pick up the wrong statement. (a) Ericsson. PAPER 1: will consist of forty multiple-choice objective questions all of which are to be answered in 1 hour for 40 marks. (b) in 1 minute Refrigeration and air-conditioning objective questions and answers. Ans: b, 74. (b) decreases COF (d) Brayton Ans: d, 83. (e) receiver. (c) less '100 top refrigeration amp air conditioning multiple choice june 20th, 2018 - refrigeration and air conditioning multiple choice questions 1 pick up the wrong statement a refrigerant should have a tow specific heat of liquid''REFRIGERATION BASICS QUIZ QUESTIONS 4 HVAC CERTIFICATION (e) unpredictable. Ans: e, 33. The vapor pressure of refrigerant should be It will carry 40 marks. (d) constant entropy lines (c) Carnot. 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. The vapor compression refrigerator employs the following cycie Ans: b, 51. per ton of refrigeration (d) weak solution mixes with strong solution (b) 5 tons (d) any value (c) Rankine cycle In vapour compression cycle, the conditii of refrigerant is saturated liquid REFRIGERATION AND AIR-CONDITIONING SCHEME OF EXAMINATION The examinations shall consist of three papers, all of which must be taken. (d) low latent heat TOP Refrigeration and Air Conditioning -Mechanical Engineering Multiple choice Questions and Answers ListBell-coleman (e) none of the above. Ans: d, 46. The refrigerant for a refrigerator should have (c) euqal (e) takes place at constant pressure. Types of Air Conditioning Systems. Your email address will not be published. which will improve your skill. The COP of a vapor compression plant in comparison to vapor absorption plant is Choose the wrong statement (e) non-inflammable. (b) increases power required per ton of refrigeration, (c) lowers  compressor  capacity  because vapour is lighter. 40 TOP Heat Transfer, Refrigeration and Air Conditioning ... 95 TOP Refrigeration and Air Conditioning - Mechanical Engineering Multiple choice Questions and Answers List Latest Refrigeration and Air Conditioning Questions and Answers 1. Ans: e, 42. (a) actual COP/fheoretical COP (e) depends upon the weather conditions. Ans: b, 28. (d) the refrigeration effect to produce 1 ton of ice at NTP conditions (b) 1.2 Ans: a, 19. (b) condenser Ans: b, 2. (b) delivery of compressor (e) all of the above. In S.J. (e) less for small capacity and more for high capacity. Ans: e, 68 Ammonia is (a) 50 kcal/min In vapor compression cycle the condition off refrigerant is dry saturated vapor (e) none of the above. (a) after passing through the condenser (b) increases heat transfer rate (b) ice at – 4°C (c) expansion valve and evaporator (e) anywhere in the cycle. - These MCQs cover theoretical concepts, true-false(T/F) statements, fill-in-the-blanks and match the following style statements. (d) metering of the refrigerant liquid (c) 2-4 bars (b) it permits complete evaporation in the evaporator, (c) it results in high volumetirc and mechanical efficiency, (a) Temperature of medium being cooled must be below that of the evaporator, (b) Refrigerant leaves the condenser as liq-uid, (c) All solar thermally operated absorption systems are capable only of intermittent operation, (d) frost on evaporator reduces heat trans¬fer. (a) high a. Ans: c, 54. (e) throttling device. Do not use capital letters or puncuation marks. Solution Manual for Refrigeration and Air Conditioning Technology, 9th Edition, Eugene Silberstein, Jason Obrzut, John Tomczyk, Bill Whitman, Bill Johnson, ISBN-10: 0357122275, ISBN-13: 9780357122273. Refrigeration and Air Conditioning – Mechanical Engineering Multiple Choice Questions : 1. (c) Precooling and subcooling bf refrigerant are same Answers of Multiple Choice Questions (MCQ) with answers on Refrigeration and Air conditioning on e akhabaar Multiple Choice Questions (MCQ) with answers on Refrigeration and Air conditioning 1-During which component of vapour compression refrigeration system, the enthalpy (e) none of the above. (b) If operating temperature of system is low, then refrigerant with low boiling point should be used (d) depends upon the make (c) equally. Which of the following refrigerants has lowest freezing point (e) there is no such restriction. (e) critical point. (e) none of the above. For this question, look for the choice that could NOT fit the described situation. Ans: e, 89. (c) more than 10 kg (b) high (d) may increase or decrease depending on the type of refrigerant used, (a) 0.1 to 0.5 h.p. Freon group of refrigerants are (A) Inflammable (B) … a) Warm air → compressor → condenser → expansion valve → evaporator → colder air b) Evaporator → compressor → condenser → expansion valve → evaporator → colder air c) Warm air → compressor → expansion valve → evaporator → colder air (b) takes place at constant temperature (b) sub-cooled liquid (b) smaller (d) Bell-coleman Why multi-stage or compound VCR with intercooler is used? of a domestic refrigerator in comparison to domestic air conditioner will be Refrigeration and Air Conditioning – Mechanical Engineering Multiple Choice Questions and Answers pdf free download. Refrigeration and Air Conditioning – Mechanical Engineering Multiple Choice Questions and Answers pdf free download. What are the Types of Air Conditioning Systems? (a) same (b) weak solution to strong solution Automobile Engineering Objective Questions with Answers - Set 16 Practice Test: Question Set - … Ans: b, 45. (d) smelling A gas will immediately … (a) near critical temperature of refrigerant Ans: b, 76. (d) all of the above (c) COP remains unaltered This contains 25 Multiple Choice Questions for Mechanical Engineering Test: Refrigeration And Air Conditioning -1 (mcq) to study with solutions a complete question bank. (e) constant volume lines. Below Drive links for MCQs (a) increases COP Candidates will be allowed 1 hour for the paper. Total Comfort Heating and Air Conditioning, LLC, Thomas Hoffmann Air Conditioning and Heating, Comfort Solutions Heating and Cooling, Paul A. Reed Contracting And Home Maintenance, Carol Ann Construction. One ton of the refrigeration is (b) slightly above atmospheric pressure (e) weak solution in liquid heat exchanger gives up heat to the strong solution. (c) 9 : 1 The C.O.P. Ans: d, 22. (b) of freezing zone Ans: b, 36. (c) after passing through the expansion or throttle valve AIR-CONDITIONING AND REFRIGERATION. (c) thermostatic valve (c) Carnot (b) expansion valve (e) 1-actual COP/fheoretical COP. Refrigeration and Air Conditioning Multiple Choice Questions :-1. Ans: e, 72. (a) Freon-12 (a) bigger cabinet should be used Ans: d, 29. Ans: d, 32. Refrigeration & Air-Conditioning MCQ Question with Answer Refrigeration & Air-Conditioning MCQ with detailed explanation for interview, entrance and competitive exams. (e) none of the above. Ammonia-absorption refrigeration cycle requires Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07 Practice Test: Question Set - 07 1. (d) unpredictable (b) above critical temperature Ans: c, 16. (c) evaporator (a) increases COP 1. (e) 7-10 bars. (e) compressor discharge. (d) 840 kJ/min In refrigerator, liquid receiver is required between condenser and flow controlling device, if quantity of refrigerant for system is In vapor compression refrigeration system, refrigerant occurs as liquid between (d) Freon-22 In a vapor compression cycle, the refrigerant immediately after expansion valve is Ans: b, 44. (d) 5-6 bars Ans: a, 86. (a) non-toxic (e) such a cycle does not exist. A … Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system (e)    under some conditions small and under some conditions high. (e) S02. (e) temperature, pressure, specific volur and'enthalpy. Ans: a, 95. (a) water at 0°C (c) compression of the refrigerant vapour Jan 26, 2018 - Free Refrigeration and Air Conditioning - Mechanical Engineering Multiple choice Questions Answers PDF Book Download Link from FreePDFBook.com, in Mechanical MCQs Books Free. The higher temperature in vapour compression cycle occurs at (a) strong solution to weak solution (b) smaller cabinet should be used (d) Erricson cycle It is very useful for all kind of GATE, SSC, ESE and other competitive examinations. of compressor required will be (b) Refrigerant leaves the condenser as liquid (e) unpredictable. (e) the refrigeration effect to produce 1 ton of ice in 1 hour time. (e) the refrigeration effect to produce 1 ton of ice in 1 hour time. (d) condenser discharge Ans: a, 64. rick up the incorrect statement Ans: a, 11. (e) unpredictable. Practice these MCQ questions and answers for … (b) decrease (e) its input only in the form of heating. (a) compression (a) condensation of the refrigerant vapour The domestic refrigerator uses following type of compressor (b) higher than atmospheric pressure (c) it results in high volumetirc and mechanical efficiency Ans: e, 15. Window Air Conditioner. Refrigeration and Air Conditioning, Mechanical Engineering Multiple Choice Questions / Objective type questions, MCQ's, with question and answers, download free PDF, Mechanical Engineering, Multiple Choice Questions, Objective type questions, Mechanical … Reading Modern Refrigeration and Air Conditioning and using this workbook will help you acquire a working knowledge of the principles of refrigeration and air conditioning … (c) Freon-22 (b) Freon-22 (d) reversed Rankine cycle (c) equal to atmospheric pressure (a) vapour compression (d) at which refrigerant gas becomes liquid (c) solid and dry ice (c) lowers compressor capacity because vapour is lighter Home » Mechanical Engineering Multiple Choice Questions » 300+ TOP Refrigeration & Air Conditioning Objective Questions and Answers, 1. (e) none of the above. 2. ammonia and water. (b) decreases COP Ans: a, 47. The boiling point of ammonia is (e) refrigerant with high boiling point must be used. (a) A refrigerant should have low latent heat (d) Brine Ans: a, 18. (e) pone of the above. (a) more (a) condenser (c) water will evaporate Aqua ammonia is used as refrigerant in the following type of refrigeration system which will improve your skill. 95 TOP MOST Refrigeration and Air Conditioning – Mechanical Engineering Multiple Choice Questions and Answers Refrigeration and Air Conditioning Interview Questions and Answers pdf . (c) high latent heat (c) using reagents (b) much below critical pressure (b) quiet operation (a) atmospheric pressure (c) remains same Allowable pressure on high-pressure side or ammonia absorption system is of the order of 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: c, 75. As per my experience good interviewers hardly plan to ask any particular question during your Job interview and these model questions are asked in the online technical test and interview of many IT & Non IT Industries. (b) before passing through the condenser (c) zero Papers 1 and 2 shall be composite and will be taken at one sitting. (e) mixture of ice and water Under equilibrium conditions. (e) unpredictable. (b) is more than 1 Rating of a domestic refrigerator is of the order of There will be three papers, Papers 1, 2 and 3, all of which must be taken. (e) all of the above. (d) any one of the above Ans: c, 73. Ans: a, 81. (c) 80 kcal/min (a) Ammonia (b) evaporator (e) 3 : 1 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. (e) condenser, absorber and separator (rectifier). Our online HVAC trivia quizzes can be adapted to suit your requirements for taking some of the top HVAC quizzes. a) To improve C.O.P. The leaks in a refrigeration system using Freon are detected by Refrigeration Basics Quiz Questions Answers : HVAC Basics ) Search for: Related Pages. (a) in 1 hour This contains 25 Multiple Choice Questions for Mechanical Engineering Test: Refrigeration And Air Conditioning -1 (mcq) to study with solutions a complete question bank. Refrigeration and Air Conditioning Multiple Choice Questions Highlights - 1000+ Multiple Choice Questions & Answers (MCQs) in Refrigeration and Air Conditioning with a detailed explanation of every question. (e) none of the above. (a) reduce compressor overheating (a) temperature, pressure and enthalpy Pick up the wrong statement. (a) 0.1 ton A comprehensive database of more than 23 HVAC quizzes online, test your knowledge with HVAC quiz questions. Ans: a, sir, (b) more than or equal to 3.65 kg (e) lithium bromide is driven out of solution. per ton of refrigeration, (b) 0.5 to 0.8 h.p. Split Air Conditioner. (b) evaporation of the refrigerant liquid (a) always less than unity (a) evaporator Pick up the wrong statement. Where does the lowest temperature occur in a vapour compression cycle ? (c) after passing through the expansion throttle valve (e) could be anywhere. Under-cooling in a refrigeration cycle (a) of cooling medium One ton refrigeratiqn corresponds to (c) above which liquid becomes vapour Download Refrigeration & Air-Conditioning MCQ Question Answer PDF « (b) reduce compressor discharge temperature (c) perfectly tight vapour seal should be used, (d) refrigerant with lower evaporation temperature should be used. (d) before entering the expansion valve (a) high triiscibility with oil (c) enthalpy increase in compressor (a) Carnot cycle Refrigeration and Air Conditioning Interview Questions and Answers pdf:-46. All of the following statements are correct regarding an air conditioning performance test, EXCEPT: (a) Co2 (e) ammonia. (b) sulphur sticks which on detection gives white smoke (c) toxic and non-inflammable Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07 Practice Test: Question Set - 07 1. The advantage of dry compression is that (a) inflammable unit, one ton of refrigeration is equal to सी. Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07. Vertical lines on pressure-enthalpy chart show constant Page 6. A certain refrigerating system has a normal operating suction pressure of 10 kg/cm gauge and condensing pressure of about 67 kg/cm. (d) reduces weight displaced by piston c. … Air refrigeration cycle is used in (e) unpredictable. Ans: e, 88. 570 btu. Ans: a, 71. (c) equal (a) lithium bromide used in vapour absorption cycle is nonvolatile Presence of moisture in a refrigerant affects the working of (b) direct (a) involves no change in volume The value of COP in vapour compression cycle is usually Ans: c, 26. A standard ice point temperature corresponds to the temperature of (e) none of the above. (b) more (b) Rankine cycle (c) constant total heat lines Moisture in freon refrigeration system causes (b) always more than unity Heat Transfer Quiz Questions ; Ozone Layer Depletion Quiz ... Air Conditioning Quiz Questions 2; Air Conditioning Quiz Questions 3; Air Conditioning Quiz Questions 4; Air Conditioning Quiz Questions 5; (a) same (e) 10. (d) corrosion of whole system Cooling water is required for following equipment in ammonia absorption plant (d) near critical pressure (b) manually operated valve Refrigeration in aeroplanes usually employs the following refrigerant (d) expansion valve. (e) none of the above. (d) more/less depending on size of plant (a) condenser tubes Ans: b, 61. The relative coefficient of performance is These solved multiple choice questions are extremely useful for the preparation for exams, campus placement of all freshers including Engineering, MBA … Packaged Air Conditioner. per ton of refrigeration Critical temperature is’ the temperature above which The Cannot coefficient of performance of cycle will be which will improve your skill. (b) as low as possible (3 to 11°C) (d) ensure that only liquid and not the vapour enters the expansion (throttling) valve Famous Heat Transfer, Refrigeration and Air Conditioning multiple choice question for Technology associate engineering and vocational training institute students to give a job exam. (a) the standard unit used in refrigeration problems Which of the following cycles uses air as the refrigerant (c) will remain unaffected Our HVACR practice exam consists of questions developed by HVAC Excellence, the largest provider of certifications (more than 200,000) in the HVACR industry. Ans: e, 4. (c) 5 (a) collect liquid refrigerant and prevent it from going to compressor per ton of refrigeration (d) large latent heat (d) water will never evaporate Answer: 50 kcal/min. (e) unpredictable. 8. (c) superheat the vapour (e) none of the above. Ans: b, 63. 1. water and water. (d) depends on other factors (b) 25% (e) 100 tons. (c) 0.5 (a) increase Pick up the wrong statement. Ans: a, 91. 8/14/2018 95 TOP Refrigeration and Air Conditioning - Mechanical Engineering Multiple choice Questions and Answers List | MCQs preparation for Engineering Competitive Exams 3/18 (e) critical point. (b) high total heat These Objective type Refrigeration and Air Conditioning Questions are very important for campus placement test and job interviews. (a) electrically operated throttling valve. (c) evaporator (c) nearly same work input as for vapour compression cycle. Solution Manual for Refrigeration and Air Conditioning Technology 9th Edition Silberstein. (b) temperature lines (e) under some conditions small and under some conditions high. (a) receiver per ton of refrigeration (c) evaparator This air conditioning and refrigeration app has been developed for testing your skills of air conditioning and refrigeration. Ans: c, 52. (d) 2 to 5 h.p. Ans: a, 8. (e) none of the above. In a flooded evaporator refrigerator, an accumulator at suction of compressor is used to Refrigeration and Air conditioning Mechanic Multiple Choice Questions and Answers: Technical Book: Zingani, Mr Barnaba Maxwell: 9781515339441: Books - Amazon.ca (e) non-toxic and non-inflammable. (c) Freon Accumulators should have adequate volume to store refrigerant charge at least If the- cycle direction be reversed, what will be the value of COP of reversed Carnot cycle Ans: d, 79. (d) wet vapour (c) of evaporator per ton refrigeration. (a) Freon-11 (b) low If a heat pump cycle operates between the condenser temperature of +27°C and evaporator temperature of – 23°C, then the Carnot COP will be (e) decreases compressor power. The evolution of heat of solution takes place in ammonia absorption plant when (b) a gas will immediately liquefy Ans: d 5. Ans: e, 9. (d) 80 kcal/hr Ans: d, 34. (c) after passing through the expansion throttle valve, (c) after passing through the expansion or throttle valve, (c) after passing through the expansion or thiottle valve, (d) may be higher or lower depending upon the nature of non-condensable gases, (a) above which liquid will remain liquid. (e) none of the above. (c) C02 Ans: d, 31. 1. (d) electrolux refrigerator (d) gas liquefaction Multiple choice Questions on Refrigeration and Air Conditioning subject in Mechanical Engineering. Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07 MCQ Refrigeration Edit Advertisement: Advertisement: Practice Test: Question Set - 07. Find out latest Multiple Choice Questions with Answers on Refrigeration and Air Conditioning for exam preparation. This set of Refrigeration Multiple Choice Questions & Answers focuses on “Two/Multi Stage Compression with Liquid Intercooling – 2”. (a) 0.2 (e) lithium bromide is driven out of solution. (b) axial Ans: a, 24. (b) 50 kcal/kr (d) low pressure side near receiver (d) collect vapours We Have 784 Homeowner Reviews of Top Eureka Heating and Furnace Contractors. What is the amount of heat energy required to evaporate 1 pound of water? (d) can be avoided by proper design (b) NH3 Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced. As per my experience good interviewers hardly plan to ask any particular questions during your Job interview and these model questions are asked in the online technical test and interview of many IT & Non IT Industries. (a) after passing through the condenser The condensing pressure due to the presence of non-condensable gases, as compared to that actually required for condensing temperatures without non-condensable gases, Multiple choice questions on Refrigeration and air conditioning - Set 13 Free Study Materials, Notes, Practice Tests, Quiz for Engineering, All Competitive Exams and Jobs Refrigeration And Air Conditioning Practice Exam Mechanical Engineering Refrigerator Campaign Content This Or That Questions … The COP of a domestic refrigerator (a) 0.1 to 0.5 h.p. (d) more/less depending on rating Ans: e, 3. (e) none of the above. (e) refrigerant is circulated in a refrigera¬tion system to transfer heat. (b) high power consumption (c) good electrical conductor (e) dual cycle. View Answer. One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice In a refrigeration cycle, the flow of refrigerant is controlled by (e) unpredictable. Freon group of refrigerants are (A) Inflammable (B) … Papers 1 and 2 shall be a composite paper to be taken at one sitting. (a) is less than 1 7. (e) ammonia vapour to strong solution. Refrigeration and Air Conditioning – Mechanical Engineering Multiple Choice Questions : 1. (c) non-inflammable and toxic (c) after passing through the expansion or throttle valve (b) safety relief valve (a) high sensible heat Ans: c, 53. Ans: b, 48. (d) 0.25 (e) refrigerant with high boiling point must be used. (b) Stirling. (d) 40 tons A refrigerant should have (a) Tow specific heat of liquid (b) high boiling point (c) high latent heat of vaporisation (c) is immaterial In vapour compression cycle the condition of refrigerant is superheated vapour (b) detect liquid in vapour The moisture in a refrigerant is removed by (e) volume lines. (a) suction of compressor (a) same Heat Transfer, Refrigeration and Air Conditioning Online Test – Multiple Choice Questions and Answers 1. (b) the cooling effect produced by melting 1 ton of ice per ton of refrigeration (b) -50°C (a) condensation of the refrigerant vapour, (b) evaporation of the refrigerant liquid, (c) compression of the refrigerant vapour, (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 ice at NTP conditions. (b) constant temperature lines (a) A refrigerant should have low latent heat, (b) If operating temperature of system is low, then refrigerant with low boiling point should be used, (c) Precooling and subcooling bf refrigerant are same, (d) Superheat and sensible heat of a. refrigerant are same. (e) expansion valve. (d) very little power consumption Explanation are given for understanding. (c) cooling below 0°C The index which corelates the combined effects of air temperature, relative humidity and air velocity on the human body, is known as Paper 1: This will consist of forty compulsory multiple choice questions. (c) strong solution to ammonia vapour The suction pipe diameter of refrigerating unit compressor in comparison to delivery side is (e) weak solution in liquid heat exchanger gives up heat to the strong solution. Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07 Practice Test: Question Set - 07 1. 2. (a) it permits higher speeds to be used Multiple choice Questions on Refrigeration and Air Conditioning subject in Mechanical Engineering. (d) concentration of solution coming out of lithium bromide generator is more in comparison to that entering the generator (c) actual COP x theoretical COP (a) Carnot cycle © All right Reversed.Latest Interview Questions, IBM Websphere Interview Questions & Answers, IBM Mainframes Interview Questions & Answers, Flash Multiple choice Questions & Answers, Hadoop Multiple choice Questions & Answers, Joomla Multiple choice Questions & Answers, MultiMedia Multiple choice Questions & Answers, vmware Multiple choice Questions & Answers, WebLogic Multiple choice Questions & Answers, RNA Structure Interview Questions & Answers, Spleen Surgery Interview Questions & Answers, poxviridae And picornaviridae Interview Questions & Answers, Wine And Beer Interview Questions & Answers, Vitamins and Coenzymes Interview Questions & Answers, Viruses In Eukaryotes Interview Questions & Answers, Epidemiology Multiple choice Questions & Answers, Process Instrumentation and Control Interview Questions, Engineering Methodology Interview Questions & Answers, Manufacturing and Industrial Engineering Interview Questions, Industrial Engineering Interview Questions & Answers, Production Management and Industrial Engineering Interview Questions, Highway Engineering Online Quiz Questions, Environmental Engineering Online Quiz Questions Answers, Engineering Mechanics Online Quiz Questions, Design of Steel Structures Online Quiz Questions Answers, Construction Planning and Management Quiz Questions, Applied Mechanics and Graphics Online Quiz Questions, Airport Engineering Quiz Questions & Answers. (b) saturation point of liquid Freon group of refrigerants are (A) Inflammable (B) … (b) maximum work input (d) 6 (e) unperdictable. Ans: d, 35. (c) remain unaffected (c) freezing automatic regulating valve (e) 33.3°C. (d) at which refrigerant gas becomes liquid, (a) results in loss of heat due to poor heat transfer, (a) collect liquid refrigerant and prevent it from going to compressor, (a) halide torch which on detection produces greenish flame lighting, (b) sulphur sticks which on detection gives white smoke, (a) lithium bromide used in vapour absorption cycle is nonvolatile, (b) lithium bromide plant can't operate below 0°C, (c) a separator is used in lithium bromide plant to remove the unwanted water vapour by condensing, (d) concentration of solution coming out of lithium bromide generator is more in comparison to that entering the generator. Freon group of refrigerants are Ans: e, 39. YOU SHOULD KNOW 1. One of the purposes of sub-cooling the liquid refrigerant is to Freon group of refrigerants are (A) Inflammable (B) … In aqua-ammonia and Lithium-bromide water absorption refrigeration systems, the refrigerants are respectively. (a) constant pressure lines 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. (a) less than 2 kg An important characteristic of absorption system of refrigeration is (a) lower than atmospheric pressure (e) its input only in the form of heating. The coefficient of performance is the ratio of the refrigerant effect to the (d) 6 (d) before entering the expansion valve Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning Part-01(रेफ्रिजरेशन एवं ए. (c) less (d) Superheat and sensible heat of a. refrigerant are same (c) carnot cycle (c) COP remains unaltered (b) ammonia vapour is driven out of solution Ans: a, 27. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will One tonne refrigareting machine means....... A. Ans: a, 49. Ans: d, 58. 3. water and lithium bromide. per ton refrigeration. Practice Test: Question Set - 07 1. (a) compressor (e) none of the above. Ans: b, 82. Ans: c, 17. (a) high, of the order of 25°

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