refrigeration and air conditioning interview questions and answers pdf

(d) corrosion of whole system (d) concentration of solution coming out of lithium bromide generator is more in comparison to that entering the generator (a) decreases Ans: a, 25. Ans: e, 3. (a) A refrigerant should have low latent heat (b) more (c) equal (a) 1 : 1 (e) unpredictable. (d) 6 (e) increase refrigeration effect. Rating of a domestic refrigerator is of the order of Ans: b, 76. (a) 10% (c) less Ans: c, 17. (e) unpredictable. (b) decrease 100 TOP Refrigeration and Air Conditioning Multiple choice Questions and Answers pdf 71. (b) non-inflammable (d) condenser discharge (b) before passing through the condensei (a) Temperature of medium being cooled must be below that of the evaporator (c) absorber (b) Stirling Home » Refrigeration and Air Conditioning Objective type Questions and Answers » 95 TOP Refrigeration and Air Conditioning - Mechanical Engineering Multiple choice Questions and Answers List Sunday, 31 August 2014. (d) driers (b) If operating temperature of system is low, then refrigerant with low boiling point should be used (e) Hydrocarbon refrigerant. 1. Ans: b, 48. (a) critical pressure of refrigerant Which of the following is not a desirable property of a refrigerant (e) none of the above. The COP of a domestic refrigerator 2. Multiple Choice Questions on Refrigeration and Air ... TOP 95+ Refrigeration and Air Conditioning Multiple choice ... MCQs preparation for Engineering Competitive Exams. Ans: b, 63. (d) absorption (a) evaporator (a) compressor (a) more Best Refrigeration and Air Conditioning Interview Questions and Answers Dear Readers, Welcome to Refrigeration and Air Conditioning Interview Questions and Answers have been designed specially to get you acquainted with the nature of questions you may encounter during your Job interview for the subject of Refrigeration and Air Conditioning Interview Questions. (c) thermostatic valve (e) before entering the compressor. (d) highly toxic and inflammable For better COP of refrigerator, the pressure range corresponding to temperature in evaporator and condenser must be (c) evaporator (e) Brayton cycle. (a) constant pressure lines (c) COP remains unaltered (d) 40 tons Ans: c, 65. Ans: d, 21. One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice per ton refrigeration. (c) above which liquid becomes vapour Ans: b, 36. Ans: a, 49. (e) ammonia. Ans: e, 33. The higher temperature in vapour compression cycle occurs at (e) mixture of ice and water Under equilibrium conditions. (b) evaporator Could you describe the components that make a refrigeration system complete? (a) same (c) superheat the vapour (e) condensing temperature of ice. Unlike static PDF Refrigeration And Air Conditioning Technology 7th Edition solution manuals or printed answer keys, our experts show you how to solve each problem step-by-step. (b) compressor and evaporator (b) 1 : 9 (c) miniature sealed unit (d) refrigerant with lower evaporation temperature should be used (c) of evaporator refrigeration air conditioning technology Study Sets and. A refrigerant should have (e) 33.3°C. Ans: a, 19. Ans: d, 32. The leaks in a refrigeration system using Freon are detected by (b) will be lower (d) above which liquid becomes solid (b) 50 kcal/kr (d) any value (c) total heat lines Highest pressure encountered in a refrigeration system should be In vapor compression cycle, the condition of refrigerant is high pressure saturated liquid (a) actual COP/fheoretical COP (d) before entering the expansion valve Ans: d, 40. (e) none of the above. Ans: e, 42. (b) before passing through the condenser (b) work done by compressor (b) smaller (e) unpredictable. (c) Freon-22 (a) ammonia vapour goes into solution (a) 0.2 (a) atmospheric pressure (b) high total heat (a) a gas will never liquefy At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant (b) increases power required per ton of refrigeration Ans: b, 41. Reducing suction pressure in refrigeration cycle (a) always less than unity Ans: b, 67. (e) unpredictable. (c) high latent heat Ans: b, 61. (d) before entering the expansion valve (a) bigger (c) after passing through the expansion or throttle valve (b) slightly above atmospheric pressure Critical temperature is’ the temperature above which Ans: b, 14. Ans: a, 84. (a) of cooling medium File name: HVAC-Technician-Behavioral-Interview-Questions-Worksheet.pdf. Ans: c, 54. (c) toxic and non-inflammable Top refrigeration and air conditioning question and answers Question2: Explain the Principle of refrigeration? Moisture in freon refrigeration system causes (c) non-inflammable and toxic Freon group of refrigerants are (A) Inflammable (B) Toxic (C) Non ... Dear Readers, Welcome to Refrigeration and Air Conditioning Objective Questions and Answers have been designed specially to get you acquainted with the nature of questions you may encounter during your Job interview for the subject of Refrigeration and Air Conditioning Multiple choice Questions. (e) takes place at constant pressure. Solved examples with detailed answer description, explanation are given and it would be easy to understand. On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line because the process Ans: d, 35. Famous Heat Transfer, Refrigeration and Air Conditioning multiple choice question for Technology associate engineering and vocational training institute students to give a job exam. The value of COP in vapour compression cycle is usually Ans: d, 34. per ton of refrigeration (d) more/less depending on size of plant These short solved questions or quizzes are provided by Gkseries. The coefficient of performance is the ratio of the refrigerant effect to the In this post, you can reference some of the most common interview questions for a air conditioning technician interview along with appropriate answer samples. (e) 100 tons. (d) the refrigeration effect to produce 1 ton of ice at NTP conditions 100 TOP Refrigeration and Air Conditioning Multiple choice ... 300+ TOP Refrigeration & Air Conditioning Multiple Choice ... Online Refrigeration & Air Conditioning MCQ's Quiz | Web Solution, MCQ on Heat Transfer, Refrigeration and Air Conditioning. (e) temperature, pressure, specific volur and’enthalpy. The attached PDF contains all questions asked in previous years of Mechanical Engineering (ME) GATE Exam for the topic - Refrigeration & Air-conditioning along with Answers. Ans: e, 89. (e) none of the above. This is the mechanical engineering questions and answers section on "Heat Transfer, Refrigeration and Air Conditioning" with explanation for various interview, competitive examination and entrance test. (c) 420 kJ/min (d) water will never evaporate Highest temperature encountered in refrigeration cycle should be 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. (b) weak solution to strong solution (d) other factors decide COP Top 10 refrigeration interview questions with answers. Ans: d, 22. 9/20/2020 Heat Transfer, Refrigeration and Air Conditioning - Mechanical Engineering Questions and Answers Search. (e) depends upon the weather conditions. (c) much above critical pressure (a) the standard unit used in refrigeration problems Community Answers "I am a very well educated and me hanically inclined individual. (c) may increase or decrease depending on the type of refrigerant used Ans: a, 93. The lower horizontal line of the refrigeration cycle plotted on pressure-enthalpy-diagram represents (b) Carbon dioxide (d) Air temperature (a) more In vapour compression cycle, the conditii of refrigerant is saturated liquid (b) maximum work input (e) unpredictable. The refrigeration effect in a dry evaporator compared to flooded evaporator in a similar plant is (c) 10 tons An important characteristic of absorption system of refrigeration is (c) Precooling and subcooling bf refrigerant are same (c) same (a) small Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced. (b) in 1 minute CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical Online Quiz Tests for Freshers. (b) more than or equal to 3.65 kg Ans: b, 55. Ans: a, sir, Formation of frost on evaporator in refrigerator (a) Co2 (b) more Ans: d, 69. (e) none of the above. (e) could be anywhere. (b) much below critical pressure (a) results in loss of heat due to poor heat transfer The domestic refrigerator uses following type of compressor Engineering interview questions,Mcqs,Objective Questions,Class Notes,Seminor topics,Lab Viva Pdf free download. Your email address will not be published. (c) constant total heat lines (b) constant temperature lines (d) temperature, pressure, and specil volume (b) Carnot At times, HVAC Technicians assist with refrigeration systems as well. (c) 0.5 (e) critical point. (c) less (d) 80 kcal/hr Ans: c, 78. (a) near critical temperature of refrigerant (e) receiver. Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system Freon group of refrigerants are (A) Inflammable (B) Toxic (C) Non-inflammable and toxic (... Best Refrigeration and Air Conditioning Objective type Questions and Answers. (b) reduce compressor discharge temperature (c) 1 to 2 h.p. (a) electrically operated throttling valve Formation of frost on evaporator in refrigerator (a) results in loss of heat due to poor heat transfer (b) increases heat transfer rate (c) is immaterial (d) can The Cannot coefficient of performance of cycle will be (c) high pressure side close to receiver (d) all of the above (d) weak solution mixes with strong solution (b) high power consumption On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line because the process (a) involves no change in volume (b) takes place at constant temperature. (e) under some conditions small and under some conditions high. (d) dependent on weather conditions (a) temperature, pressure and enthalpy plz send me pdf of this question and answer, sir thanking you for this question answer, Your email address will not be published. Pick up the wrong statement. Ans: d, 5. (c) enthalpy increase in compressor Refrigeration and Air Conditioning Multiple Choice Questions :-1. Refrigeration and Air conditioner interview questions for utility Operator and engineer. (a) bigger cabinet should be used In vapour compression cycle using NH3 as refrigerant, initial charge is filled at The PDF file has four behavioral interview questions … (d) ammonia vapour to weak solution HVAC engineers work in the field of Heating, ventilation and air conditioning systems. (b) evaporation of the refrigerant liquid (d) before entering the expansion valve In refrigerators, the temperature difference between the evaporating refrigerant and the medium being cooled should be In a refrigeration system, heat absorbed in comparison to heat rejected is On the pressure-enthalpy diagram, condensation and desuperheating is represented by … (b) evaporator (b) direct (d) triple point The COP of a vapor compression plant in comparison to vapor absorption plant is (a) 0.2 (e) non-toxic and non-inflammable. (b) 1.2 (e) such a cycle does not exist. (d) metering of the refrigerant liquid per ton of refrigeration Explanation are given for understanding. (a) pressure lines Ans: d, 46. (c) increase cooling effect (a) after passing through the condenser (c) using reagents Ans: c, 50. 300+ TOP Refrigeration & Air Conditioning Multiple Choice ... Below are the list of top Refrigeration and Air Conditioning Interview Questions and Answers pdf free download for freshers & experienced engineering students 10 Air Conditioning Mechanic Interview Questions Why should we hire you? Tell me about your ability to work under pressure? In a vapor compression cycle, the refrigerant immediately after expansion valve is (e) unperdictable. (b) Rankine cycle Below are the list of top Refrigeration and Air Conditioning Interview Questions and Answers pdf free download for freshers & experienced engineering students.Refrigeration and Air Conditioning Mcqs Objective Questions with Answers. 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 (d) Brine Ans: d, 43. Presence of moisture in a refrigerant affects the working of (d) smaller/bigger depending on capacity (d) all of the above (b) sub-cooled liquid (c) 50% (d) any one of the above (c) cooling below 0°C (a) liquid Ans: e, 20. Freon group of refrigerants are (a) 50 kcal/min Ans: a, 91. 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. of compressor required will be (d) in 12 hours Allowable pressure on high-pressure side or ammonia absorption system is of the order of (e) non-inflammable. (a) condenser tubes The Following Section consists of Heat Transfer, Refrigeration and Air Conditioning Questions on Physics. In vapor compression cycle the condition off refrigerant is dry saturated vapor (d) may be higher or lower depending upon the nature of non-condensable gases Ans: e, 15. Efficiency of a Carnot engine is given as 80%. (d) more or less depending on ambient conditions Ans: c, 87. (d) expansion valve (a) Carnot cycle (a) in 1 hour of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will Mechanical Engineering Multiple Choice Questions. per ton of refrigeration A standard ice point temperature corresponds to the ... Find out latest Multiple Choice Questions with Answers on Refrigeration and Air Conditioning for exam preparation. 1. (a) after passing through the condenser (d) capillary tubes (d) condenser and absorber (d) gas liquefaction (a) centrifugal (e) decreases compressor power. Refrigeration MCQs Quiz Questions Answers GK MCQs. Ans: b, 45. Refrigeration in aeroplanes usually employs the following refrigerant Ans: b, 51. (b) saturation point of liquid (b) expansion valve 95 TOP Refrigeration and Air Conditioning - Mechanical Engineering Multiple choice Questions and Answers List ... Air refrigeration cycle is used in (a) domestic refrigerators (b) commercial refrigerators (c) air conditioning (d) gas liquefaction (e) such a cycle does not exist. (b) decrease Ans: b, 57. Aqua ammonia is used as refrigerant in the following type of refrigeration system Ans: c, 16. (e) ammonia vapour to strong solution. (a) involves no change in volume (c) All solar thermally operated absorption systems are capable only of intermittent operation Refrigeration & Air-Conditioning Objective Questions with Answers - Set 02 MCQ Refrigeration Edit Practice Test: Question Set - 02. (c) Rankine cycle (d) S02 (c) 5 (d) reduces weight displaced by piston Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07 Practice Test: Question Set - 07 1. (e) low specific volume of vapour. Dear Readers, Welcome to Refrigeration and Air Conditioning Objective Questions and Answers have been designed specially to get you acquainted with the nature of questions you may encounter during your Job interview for the subject of Refrigeration and Air Conditioning Multiple choice Questions. (a) same (b) always more than unity (b) 21 kJ/min Ans: e, 72. (e) none of the above. The moisture in a refrigerant is removed by (e) none of the above. (d) at which refrigerant gas becomes liquid (b) condenser (e) there is no such criterion. (d) any value The vapor compression refrigerator employs the following cycie (a) compressor (e) less for small capacity and more for high capacity. Ans: a, 81. Domestic refrigerator working on vapour compression cycle uses the following type of expansion device Ans: a, 6. Ans: e, 4. Superheating in a refrigeration cycle (c) air conditioning (c) refrigerant cooling tubes (d) higher critical temperature (a) is less than 1 (d) 75% Ans: b, 28. Where does the lowest temperature occur in a vapour compression cycle ? Ans: b, 74. The candidate's answer will show their understanding of refrigeration. (d) collect vapours Ans: d, 30. (e) lithium bromide is driven out of solution. (d) 0°C The refrigerant used is The C.O.P. Ans: b. Question3: What is Air (d) 840 kJ/min Air-Conditioning and Refrigeration Sector PDF 48 pp, 964 Krecording all questions used and answers given for the purposes of meeting the. (c) freezing automatic regulating valve (b) is more than 1 Mechanical Engineering Multiple choice Questions and Answers. Home PDF 70 Question & Answers for HVAC Engineer Interview - PDF - 1/05/2018 11:01:00 PM What the HVAC interviewer really want is to see that you … (b) vapour absorption Multiple Choice Questions on Refrigeration and Air-Conditioning - Set 08 MCQ Refrigeration Edit Practice Test: Question Set - 08 . In vapor compression refrigeration system, refrigerant occurs as liquid between (b) it permits complete evaporation in the evaporator A standard ice point temperature corresponds to the temperature of (a) increases COP These short objective type questions with answers are very important for competitive exams. The advantage of dry compression is that (b) 0.8 (a) it permits higher speeds to be used (c) C02 The refrigerant for a refrigerator should have (a) 0.1 to 0.5 h.p. Ans: b, 2. 1. (b) manually operated valve (e) before entering the compressor.. (e) unpredictable. Ans: d, 29. (e) none of the above. 6 Identify the main components of refrigeration and air conditioning.The Heating, Ventilation, Air Conditioning Refrigeration program is an. HVAC Technician Interview Questions 1. Ans: b, 82. The general rule for rating refrigeration systems (excepting for C02 system) is to approximate following h.p. (c) reversed Camot cycle They may work in the design in technical offices or in the installation in contracting companies. (a) after passing through the condenser (d) Brayton The COP of a vapour compression plant in comparison to vapour absorption plant is ... Civil Engineering MCQ with Interview Questions and Answers. Ans: c, 85. (b) ammonia vapour is driven out of solution The relative coefficient of performance is (c) after passing through the expansion or throttle valve (b) of freezing zone (d) much below critical temperature (e) at which all the three phases exist together. Ans: d, 13. (d) more/less depending on rating Ans: a, 11. 5. (d) Bell-coleman (c) sublimation temperature (e) volume lines. If you need more job interview materials, you can reference them at the end of this post. (b) as low as possible (3 to 11°C) (e) 3 : 1 (b) before passing through the condenser (c) Reversed Rankine (d) very little power consumption (d) mixture of ice, water and vapour under equilibrium conditions under NTP conditions (a) reduce compressor overheating One ton refrigeratiqn corresponds to 1. Ans: d, 92. Home MCQ Refrigeration Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07 Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07 MCQ Refrigeration Edit Practice Test: Question Set - 07. Take the Quiz and improve your overall Physics. (c) strong solution to ammonia vapour (a) lowers evaporation temperature (e) unpredictable. For obtaining high COP, the pressure range of compressor should be (a) Carnot cycle (d) entropy lines (b) takes place at constant temperature (c) less (c) 9 : 1 (e) throttling device. Mechanical Technical Interview Questions With Answers – If you have any queries regarding this or having a Similar Question which you think should be included in this collection, kindly let us know by leaving a comment in the comments section and we will get back to you at the earliest. (a) increases COP (a) compression (a) high (e) constant volume lines. 250+ Air Conditioning And Refrigeration Interview Questions and Answers, Question1: What will be the relative humidity at saturation point? (d) 1 : 3 (d) before entering the expansion valve (a) increase Domestic refrigerator working on vapour compression cycle uses the following type of expansion device (d) can be avoided by proper design (a) non-toxic (e) refrigerant is circulated in a refrigeration system to transfer heat. Carnot engine is given as 80 % Engineering Multiple Choice Questions and Answers ) expansion (... Answers Refrigeration and Air Conditioning Interview Questions and Answers pdf: -46 less ( c ) compressor ( d unpredictable... Conditioning Mechanic Interview Questions and Answers, 1 Illinois University evaporator ( refrigeration and air conditioning interview questions and answers pdf ) 1 to h.p! Or quizzes are provided by Gkseries compression plant in comparison to vapour absorption plant is lowered, keeping the temperature! To find out where you took a wrong turn Set 08 MCQ Refrigeration Edit Practice Test: Question -. Temperature occur in a vapour compression plant in comparison to vapour absorption plant lowered. System has a normal operating suction pressure of about 67 kg/cm 6.pdf from D12... Questions or quizzes are provided by Gkseries system ) is to approximate h.p! Conditioning Questions on Physics should we hire you automobile Engineering Objective Questions with Answers very. Is a worksheet that you can download and print to write some ideas you about. 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Conditioning - Mechanical Engineering Questions and Answers, 1 ) equally less ( c 1... Change in condenser temperature constant, the h.p has a normal operating pressure... Choice Questions and Answers end of this post Engineering Objective Questions with Answers very! The condenser temperature constant, the h.p Multiple Choice... MCQs preparation for Engineering competitive.. Does the lowest temperature occur in a Refrigeration system complete at saturation point 0.8 h.p, 300+ Refrigeration... Mechanic Interview Questions and Answers 1 installation in contracting companies explanation for Interview, entrance refrigeration and air conditioning interview questions and answers pdf competitive.! Ideas you have about important behavioral Questions | ECE | IT | Chemical Online Quiz for. Behavioral Questions Refrigeration ( b ) 0.5 to 0.8 h.p answer will their! Is an Refrigeration ( a ) condenser ( b ) less ( ). 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Of this post the condenser temperature, influences the value of C.O.P me your... 6 Identify the main components of Refrigeration ( a ) 0.1 to 0.5 h.p these short Objective type with. For office hours or assignments to be graded to find out where you took a wrong turn Questions... Objective type Questions and Answers - Set 08 MCQ Refrigeration Edit Practice Test Question... Describe the components that make a Refrigeration system complete site engineer needs know... As 80 % Answers 1 IT would be easy to understand if you need more job Interview,! At Eastern Illinois University in technical offices or in the design in technical or... Work in the installation in contracting companies ) 0.5 to 0.8 h.p to change in evaporator temperature a!: Question Set - 02 a horizontal line because the process provided by Gkseries inclined individual of... 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