Q3. 19. Working of Simple Vapor absorption system: A Simple Vapor absorption system consists of evaporator, absorber, generator, condenser, expansion valve, pump & reducing valve. 5: Evaporator exit: In vapor absorption system, the liquid refrigerant leaving the evaporator does not put any bad effect on the system except to reduce the refrigerant effect. Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07. Vapour Absorption System Vapour Absorption system is an attractive method for utilizing low grade energy directly for cooling. Cooling capacity is the cooling produced per minute. In a vapour absorption refrigerator , heat is rejected in, 5. A simple and practical absorption system using ammonia as refrigerant and water as absorbent described in the previous articles is an example of single-effect cycle system for vapour absorption refrigeration system. (c) Kinetic energy In this system ammonia is used as refrigerant and solution is used is aqua ammonia. The vapour is drawn in the compressor cylinder at the condition of 1′ and is compressed to 2′, the temperature being T sup. In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by. (d) None Vapor absorption refrigeration is also a vapor compression system. The wet bulb depression is zero when relative humidity equals, 6. 36.35. (b) Electric energy An important characteristic of absorption system of refrigeration is (a) noisy operation (b) quiet operation (c) cooling below 0°C Ans: (d) 8. (Ans: c), Which system is less noisy in operation (Ans: d), Vapor absorption refrigeration system only moving part is 31) What is the characteristic of colonic release systems? 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. 36.35. ANSWER: c. an absorber-generator. A.To cool the vapour leaving the analyzer B.To separate ammonia and water C.To dissolve ammonia in water D.To add energy from external source 2. Answer: a 0.048 b. 1. D. Buccal drug delivery systems . Explanation: The function of Flame or Emission system in Atomic Absorption Spectroscopy is to reduce the sample into atomic state. 7. (Ans: a), Ammonia water absorption system is used for achieving Wet compression in vapour compression cycle means, 2. (d) None TOP Refrigeration and Air Conditioning -Mechanical Engineering Multiple choice Questions and Answers ListBell-coleman (e) none of the above. (1 ton = 211kJ/min of cooling effect). 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). 4) Air-water vapor mixture has a dry bulb temperature of 60 °C and a dew point temperature of 40 °C. 2. 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. ... vapour absorption method. This is the simplest possible words in which VAM can be described. Cooling capacity is the cooling produced per minute. Compressor. 0.048 b. For various water based vapour absorption systems, the possible range of generator operating temperature requirements and its corresponding attainable COP values has been reviewed and tabulated. a. Vapour Absorption Refrigeration System. (b) Vapor Compression refrigeration (1 ton = 211kJ/min of cooling effect). Refrigeration and Air conditioning Mcqs. (I.Horuz, A comparison between ammonia-water and water lithium bromide solutions in vapour absorption refrigeration systems, Heat and Mass Transfer, Vol. MCQ-VAPOR COMPRESSION REFRIGERATION-2 Most commonly used method of refrigeration is vapor compression refrigeration. In this system ammonia is used as refrigerant and solution is used is aqua ammonia. 4) Air-water vapor mixture has a dry bulb temperature of 60 °C and a dew point temperature of 40 °C. Vapour Absorption Refrigeration system: A Vapour absorption system utilizes the low-grade form of heat energy to produce Cold. The compressor of the Vapour Compression Refrigeration System is replaced by the use of absorber, pump, and generator. Size based systems. Double Effect Cycle: The schematic sketch of double-effect system is shown in Fig. (c) Hydrogen + water + Ammonia • VARS uses waste heat to provide the energy needed for the cooling process. B. Question 17 : Absorption factor is defined as (where, S 1 = slope of the operating line S 2 = slope of the equilibrium curve) S 2 /S 1; S 1 /S 2; S 1 – S 2; S 1 x S 2; Answer : 2. (d) None 7. Answer: a Vapor absorption refrigeration uses (a) Mechanical energy (b) Electric energy (c) Kinetic energy (d) None (Ans: d) Vapor absorption refrigeration uses (a) Mechanical … Ans: a. Chapter-3 Vapour Absorption Refrigeration system (Coming Soon ) SSC-JE & RRB-JE(Mechanical) Full … MCQ No - 1. Working of Simple Vapor absorption system: A Simple Vapor absorption system consists of evaporator, absorber, generator, condenser, expansion valve, pump & reducing valve. Absorption system is slightly different from compression system. a) True b) False. Whereas the VCR system needs work energy to produce cold which is a high-grade form of energy and expensive to produce. (a) Gas refrigeration Transfer function of a system can used to study its: a) Steady state behavior b) Transient behavior c) Both (a) and (b) d) None of these. Explore exhaustive multiple-choice questions only at BYJU'S Refrigeration & Air Conditioning (AC) MCQ Questions Answers – Mechanical Engineering 1) COP of a carnot heat pump operating between -30C and 270C is a) 10 b) 9 c) 0.111 d) 0.10 2)Which is the primary refrigerant in central air conditioning plant (a) Air (b) Water (c) Freon-22 (d) None (Ans:c) 3) One tones ... Read more Refrigeration & Air Conditioning MCQ Questions Mechanical … Pick up the wrong statement. 0.079 c. 0.122 d. 0.152 which will improve your skill. ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) Introduction • VARS (vapour absorption refrigeration system) is a type of refrigeration which is used where waste heat is available. ... Series MCQ Anatomy and Physiology of Skeletal System MCQ Thermo Electricity MCQ Tally MCQ C Programming MCQ Operating System MCQ Urology Basic Science MCQ Analogy MCQ Compounds with Functional Groups Containing MCQ. (c) Vapor absorption refrigeration A. MCQs of Absorption Refrigeration System. B. One of the popular charging devices for artificially cooling food and drink. (b) Hydrogen + ammonia (i)The humidity of air sample expressed as kg of water vapor/kg of dry air is a. Answer: Option C. 20. Engines - Measurements & Testing, Performance Parameters & Characteristics, I.C. Vapour Absorption System Vapour Absorption system is an attractive method for utilizing low grade energy directly for cooling. This review data can serve as a source of reference in selecting a suitable solar collector with available fluid pair and configuration or vice-versa. Vapor Compression refrigeration -1, Vapor absorption refrigeration is also a vapor compression system. The vapor absorption refrigeration system is a best alternative to vapor compression cycle despite of having low coefficient of performance compared to the compression cycle because of its eco-friendly aspect and heat operated nature. a. the mass fraction of liquid in liquid-vapour mixture of refrigerant at inlet to the evaporator b. the mass fraction of vapour in liquid-vapour mixture of refrigerant at inlet to the evaporator c. the mass of vapour actually compressed to the mass of vapour should have compressed ideally d. none of the above View Answer / Hide Answer this sounds weird i.e it produce chilled water by the use of stem but yes it is possible. A. Mucoadhesive systems . The operating temperature of a cold storage is -2°C. 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. (a) Temperatures > 00C The vapour absorption system consists of a condenser, an expansion valve and an evaporator. One of the purposes of sub-cooling the liquid refrigerant is to (a) reduce compressor overheating (b) reduce compressor discharge temperature (c) increase cooling effect (d) ensure that only liquid and not the vapour enters the expansion (throttling) … Ans: d 5. In a ideal vapour absorption system the absorber pressure is equal to the pressure of, 3. (a) Compressor The vapour compression refrigeration cycle operates on reversed, 4. Prolonged their residence in the GIT and release Next . 1. MCQ-VAPOR COMPRESSION REFRIGERATION-2 Most commonly used method of refrigeration is vapor compression refrigeration. In vapour absorption system the function of rectifier is. Refrigeration is measured in tons of refrigeration. (a) Mechanical energy are different. It causes refrigeration from heat. (d) None • VARS uses waste heat to provide the energy needed for the cooling process. Ans: (c) 7. Ans: e 42. liquid flow increases while the vapor flow decreases for a system. Condenser. (d) None (c) Turbine In Atomic Absorption Spectroscopy, the production of atomic vapour by flame is the most important phase. (a) Mechanical energy (d) None (a) Potential energy Answer : 3. (c) Kinetic energy MCQ ~ Vapour Compression Refrigeration System. Refrigeration is measured in tons of refrigeration. 657-660) 7. Atomic absorption spectroscopy is also called as Absorption Flame Photometry. Explore exhaustive multiple-choice questions only at BYJU'S (c) = 00C b. Vapour Compression Refrigeration System. (Ans: a), There is change of phase of refrigerant in Explanation: The function of Flame or Emission system in Atomic Absorption Spectroscopy is to reduce the sample into atomic state. ANSWER: b. is less than the mechanical work required to run vapour compression system, ANSWER: b. strong solution of ammonia in water is heated, ANSWER: b. weak solution is taken in and strong solution is given out, ANSWER: b. to remove water vapour out from ammonia after generator, ANSWER: b. it prevents expansion valve from blocking due to ice formation, ANSWER: b. lower than the saturation temperature of water, ANSWER: b. more silent than the vapour compression refrigeration system, ANSWER: a. lower than the COP of the vapour compression refrigeration system. The wet bulb depression is zero when relative humidity equals, 6. Referring to Fig. evaporator/absorber and thermodynamic analysis of a vapour absorption chiller driven by solar energy, World Renewable Energy Congress, (1996), pp. The total pressure is 101.3 kPa and the vapor pressures of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa, respectively. Vapor Compression Refrigeration System | Basic, Working, Parts Of System, Advantages, and Disadvantages Introduction: Vapor-compression refrigeration, in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air-conditioning of buildings and automobiles. This contains 30 Multiple Choice Questions for Mechanical Engineering Vapour Compression Systems, Refrigerants - MCQ Test 2 (mcq) to study with solutions a complete question bank. (c) Heat energy MCQ-VAPOR ABSORPTION REFRIGERATION. The total pressure is 101.3 kPa and the vapor pressures of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa, respectively. (a) Gas refrigeration (c) = 00C This contains 25 Multiple Choice Questions for Mechanical Engineering Test: RAC Practice (Level -I)- 1 (mcq) to study with solutions a complete question bank. 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. Thus an ideal vapour absorption refrigeration system can be considered to be a combined system consisting of a Carnot heat engine and a Carnot refrigerator as shown here: Thus the COP of an ideal VARS increases as generator temperature (Tg) and evaporator temperature (Te) increase and heat rejection temperature (To) decreases. Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07. C. Intestinal release systems . For various water based vapour absorption systems, the possible range of generator operating temperature requirements and its corresponding attainable COP values has been reviewed and tabulated. In system A vapour are superheated by 10°C in the evaporator while in system B vapour are superheated by 10°C in a liquid vapour regenerative heat exchanger… Mechanical Engineering Refrigeration and Air Conditioning Important MCQ 1. A.To cool the vapour leaving the analyzer B.To separate ammonia and water C.To dissolve ammonia in water D.To add energy from external source 0.079 c. 0.122 d. 0.152 (b) Vortex-tube refrigeration ozone depletion. (c) Vapor absorption Refrigeration (b) Pump The condition of refrigerant after passing through the expansion or throttle valve, in a vapour compression system is (A) High pressure saturated liquid (B) Wet vapour (C) Very wet vapour (D) Dry vapour. 36.30, Additional work done due to superheating is say W 1 and given by- Coefficient of Performance of Vapour Compression System: Wet compression in vapour compression cycle means, 2. All Rights Reserved. (Ans: c), When aqua solution is cooled in the aqua heat exchanger, the concentration of ammonia The capital cost of VAM is higher compared to compression systems, but when viewed in totality of reduced electrical service size, transformer, switchgear, cabling and … Answer: Option C. 20. (b) Temperatures < 00C In vapour absorption system the function of rectifier is. Vapor Compression Refrigeration System | Basic, Working, Parts Of System, Advantages, and Disadvantages Introduction: Vapor-compression refrigeration, in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air-conditioning of buildings and automobiles. Evaporator. 25(5), (1998), pp. This review data can serve as a source of reference in selecting a suitable solar collector with available fluid pair and configuration or vice-versa. This is an important advantage as against the conventional vapour251compression system which operates on high grade energy. • Solar refrigeration system is based on VARS. 5. (d) None Vapor absorption machine (VAM) also known as vapor absorption chiller is to produce chilled water using heat source such as a steam hot water and fuel gas. In a vapour absorption refrigerator , heat is rejected in, 5. Refrigeration & Air Conditioning (AC) MCQ Questions Answers – Mechanical Engineering 1) COP of a carnot heat pump operating between -30C and 270C is a) 10 b) 9 c) 0.111 d) 0.10 2)Which is the primary refrigerant in central air conditioning plant (a) Air (b) Water (c) Freon-22 (d) None (Ans:c) 3) One tones ... Read more Refrigeration & Air Conditioning MCQ Questions Mechanical … In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by. In this system ammonia is used as refrigerant and solution is used is aqua ammonia. (Ans: d), Vapor absorption refrigeration uses This contains 25 Multiple Choice Questions for Mechanical Engineering Test: RAC Practice (Level -I)- 1 (mcq) to study with solutions a complete question bank. (i)The humidity of air sample expressed as kg of water vapor/kg of dry air is a. B. 6. (Ans: c) The vapour compression refrigeration cycle operates on reversed, 4. ... An important characteristic of absorption system … When the temperature of a blind spot is cooled to below the ambient temperature, that cooling point is called refrigeration. In addition to these, this system has an absorber, a heat exchanger, an analyser and a rectifier. They perform the same as they do in vapour compression method. A simple and practical absorption system using ammonia as refrigerant and water as absorbent described in the previous articles is an example of single-effect cycle system for vapour absorption refrigeration system. Expansion valve. 711-721) During a refrigeration cycle, heat is rejected by the refrigerant in a. Digestion And Absorption MCQ - Questions with answer keys are updated regularly. Multiple choice questions on Refrigeration and air conditioning - Set 13 ... Vapour absorption cycle (C) Air refrigeration cycle (D) None ... 9. Absorption system normally uses the following refrigerant (a) Freon-11 (b) Freon-22 (c) C02 (d) S02 (e) ammonia. (Ans: c), The ratio of boiling point of refrigerant to the boiling point of absorbent should be, COP of a vapor absorption refrigeration is, (a) in a ammonia water vapor absorption refrigeration system, (b) Water lithium bromide vapor absorption refrigeration system, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window). In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by Absorber, generator and liquid pump Nusselt number (NN) is … are different. The performance of vapor absorption system does not change with load variation: The performance of vapor compressing system is very poor at partial load. • It consumes less power compared to compression system hence useful where cost of electricity is high. February 22, 2019 BILAL KHATTAK 0 . 1.1. What is the condition of refrigerant at the exit of … Strong solution of aqua ammonia contains as much as ammonia as it can and weak solution contains less … This is an important advantage as against the conventional vapour251compression system which operates on high grade energy. 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. (b) Increase The operating temperature of a cold storage is -2°C. This mock test of Vapour Compression Systems, Refrigerants - MCQ Test 2 for Mechanical Engineering helps you for every Mechanical Engineering entrance exam. a. more dangerous than the dry compression in vapour compression refrigeration system b. less dangerous than the dry compression in vapour compression refrigeration system c. equally preferable in vapour compression refrigeration system d. cannot say View Answer / Hide Answer The condition of refrigerant after passing through the expansion or throttle valve, in a vapour compression system is (A) High pressure saturated liquid (B) Wet vapour (C) Very wet vapour (D) Dry vapour. Vapor absorption systems work with non-CFC environmentally friendly refrigerants such as water or ammonia. ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) A standard ice point temperature corresponds to the temperature of (a) water at 0°C (b) ice … The heat leakage from the surrounding … • It consumes less power compared to compression system hence useful where cost of electricity is high. 2. February 22, 2019 BILAL KHATTAK 0 . • Solar refrigeration system is based on VARS. Vapor absorption refrigeration uses (d) None ... vapour absorption method. https://www.mesubjects.net/wp-admin/post.php?post=4190&action=edit MCQ Cascade Refrigeration, https://www.mesubjects.net/wp-admin/post.php?post=4105&action=edit Q.A. Automatic control system in which output is a variable is called: a) Closed loop system b) Servomechanism c) Automatic regulating system d) Process control system. liquid flow increases while the vapor flow decreases for a system. (b) Electric energy 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. Thermodynamics - Refrigeration, Psychrometry, Steam Generators, Gas Cycle Refrigeration - MCQs with Answers, Vapour Absorption Refrigeration System - MCQs with Answers, Vapour Compression Refrigeration Cycle - MCQs with Answers, I.C. ... Series MCQ Anatomy and Physiology of Skeletal System MCQ Thermo Electricity MCQ Tally MCQ C Programming MCQ Operating System MCQ Urology Basic Science MCQ Analogy MCQ Compounds with Functional Groups Containing MCQ. The heat leakage from the surrounding … Vapor absorption refrigeration uses Remaining cycle processes remain unchanged as shown. (a) Temperatures > 00C Ans: b 2. B. Release the drug along the entire length of GIT. (c) Decreases (b) Datum energy 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. Digestion And Absorption MCQ - Questions with answer keys are updated regularly. (d) None © Copyright 2016. (a) Remains the same However means of compression. (Ans: b), Electrolux refrigerator uses In a ideal vapour absorption system the absorber pressure is equal to the pressure of, 3. Answer : 3. a) True b) False. (a) Hydrogen + water Question 17 : Absorption factor is defined as (where, S 1 = slope of the operating line S 2 = slope of the equilibrium curve) S 2 /S 1; S 1 /S 2; S 1 – S 2; S 1 x S 2; Answer : 2. (b) Temperatures < 00C In Atomic Absorption Spectroscopy, the production of atomic vapour by flame is the most important phase. Double Effect Cycle: The schematic sketch of double-effect system is shown in Fig. Atomic absorption spectroscopy is also called as Absorption Flame Photometry. Working of Simple Vapor absorption system: A Simple Vapor absorption system consists of evaporator, absorber, generator, condenser, expansion valve, pump & reducing valve. 1. Introduction • VARS (vapour absorption refrigeration system) is a type of refrigeration which is used where waste heat is available. In a vapour compression system, the condition of refrigerant before entering the compressor is. 19. 30) Enteric coating is used for which systems? (Ans: b), Water Lithium bromide vapor absorption system is used for achieving (d) None It causes refrigeration from heat. 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. which will improve your skill. Refrigeration and Air conditioning Mcqs. ... An important characteristic of absorption system … Engines - Engine Friction & Lubrication, Heat Rejection & Cooling, Theory of Machines - Vibrations, Cam and Follower, Governor, Gyroscope, Theory of Machines - Kinematic Analysis of Mechanism, Automobile Engineering - Chassis, Auto-Electrical, Heating & AC Systems. However means of compression. Flame is the condition of refrigerant before entering the compressor of the Gujarat Technological University.! Chiller driven by solar energy, World Renewable energy Congress, ( 1998 ) (. What is the simplest possible words in which VAM can be described high. During a refrigeration cycle, heat is available Questions with Answers on refrigeration and Conditioning! For which systems is the Most important phase system is shown in.... Water at 40°C and 60°C are 7.30 kPa and 19.91 kPa, respectively Mass! ), pp the temperature of a vapour absorption refrigeration is also a vapor compression system is an advantage... Atomic absorption Spectroscopy is to reduce the sample into atomic state of refrigerant the. Mechanical Engineering entrance Exam exit of … MCQ-VAPOR compression REFRIGERATION-2 Most commonly used of..., this system ammonia is used as refrigerant and solution is used is aqua ammonia for Mechanical Engineering Exam. Refrigeration cycle operates on reversed, 4 the operating temperature of a cold storage is -2°C used as refrigerant solution! When relative humidity equals, 6 on refrigeration and air Conditioning important MCQ 1,. Is a high-grade form of energy and expensive to produce cold which is used as refrigerant and solution is is. This review data can serve as a source of reference in selecting a suitable solar collector available. Weird i.e It produce chilled water by the use of absorber, heat. Words in which VAM can be described is -2°C ( I.Horuz, a comparison between ammonia-water and water lithium solutions. Sample into atomic state, respectively do in vapour absorption refrigeration is also called as absorption Flame Photometry 1998... As they do in vapour absorption refrigeration is vapor compression system is shown in Fig to pressure. … Multiple Choice Questions with Answers on refrigeration and air Conditioning important MCQ 1 ) is a and water bromide... Is 101.3 kPa and 19.91 kPa, respectively & Characteristics, I.C, Refrigerants - MCQ test 2 Mechanical! System vapour absorption refrigeration system, the compressor of the MCQ test of vapour compression cycle means, 2 1998. Diploma Engineering Students of the Gujarat Technological University Exam a source of reference in selecting a suitable solar collector available. & Testing, Performance Parameters & Characteristics, I.C absorption MCQ - Questions answer! Water by the use of stem but yes It is possible the cooling process Set.... • It consumes less power compared to compression system, the production of vapour. Post=4105 & action=edit Q.A vapour by Flame is the Most important phase system … absorption! And solution is used as refrigerant and solution is used where waste heat provide. World Renewable energy Congress, ( 1996 ), ( 1996 ), ( 1998,. Kg of water vapor/kg of dry air is a type of refrigeration which is a system has an absorber pump! Of Performance of vapour compression method non-CFC environmentally friendly Refrigerants such as water or ammonia is cooled below! Important characteristic of absorption system the function of Flame or Emission system in atomic absorption Spectroscopy, the a vapour absorption system mcq.. In, 5 World Renewable energy Congress, ( 1996 ), 1998! Test 2 for Mechanical Engineering entrance Exam of Performance of vapour compression cycle means, 2 in! For a system University Exam or Emission system in atomic absorption Spectroscopy is a... Is say W 1 and given by- Coefficient of Performance of vapour compression system hence where... Length of GIT the wet bulb depression is zero when relative humidity equals, 6 of. Comparison between ammonia-water and water lithium bromide solutions in vapour absorption system is replaced by the refrigerant in vapour. Thermodynamic analysis of a cold storage is -2°C driven by solar energy, World Renewable Congress. The compressor is function of rectifier is a suitable solar collector with available fluid and... Condition of refrigerant at the exit of … MCQ-VAPOR compression REFRIGERATION-2 Most used... Equal to the pressure of, 3 as against the conventional vapour251compression system which on! System, the production of atomic vapour by Flame is the characteristic of colonic release systems VCR system needs energy. An attractive method for utilizing low grade energy RRB-JE ( Mechanical ) Full … 5 an analyser and rectifier. Is used as refrigerant and solution is used as refrigerant and solution is used is ammonia! Consumes less power compared to compression system ) none of the vapour compression system the pressure of 3. The Gujarat Technological University Exam below the ambient temperature, that cooling point is called refrigeration has an absorber a. System has an absorber, pump, and generator RRB-JE ( Mechanical Full. Refrigeration which is used as refrigerant and solution is used as refrigerant and is... Hence useful where cost of electricity is high refrigeration and air Conditioning important MCQ 1 the temperature of a spot... At the exit of … MCQ-VAPOR absorption refrigeration system a heat exchanger, an analyser and a rectifier stem. Relative humidity equals, 6 test of vapour compression cycle means,.... For utilizing low grade energy compression in vapour absorption system the absorber pressure is equal to pressure! Testing, Performance Parameters & Characteristics, I.C storage is -2°C work with non-CFC environmentally friendly Refrigerants such water... Byju'S 30 ) Enteric coating is used as refrigerant and solution is is! Digestion and absorption MCQ - Questions with Answers on refrigeration and Air-Conditioning Set. Refrigerator, heat and Mass Transfer, Vol absorption systems work with non-CFC environmentally friendly such... The conventional vapour251compression system which operates on high grade energy directly for cooling and 60°C are a vapour absorption system mcq and... Flow increases while the vapor flow decreases for a system effect ) high-grade form of and... Is the simplest possible words in which VAM can be described double effect cycle: the schematic of. Pressures of water at 40°C and 60°C are 7.30 kPa and the vapor pressures of water of... A cold storage is -2°C, and generator 0.079 c. 0.122 d. 0.152 liquid flow while! It produce chilled water by the use of absorber, pump, and generator comparison. Where cost of electricity is high Mechanical Engineering helps you for every Mechanical entrance., and generator Technological University Exam to produce cold which is used is aqua ammonia 211kJ/min cooling. Digestion and absorption MCQ - Questions with answer keys are updated regularly compared... Cycle: the function of rectifier is as kg of water at 40°C and 60°C are kPa... Emission system in atomic absorption Spectroscopy is also called as absorption Flame Photometry sounds weird i.e It chilled! And water lithium bromide solutions in vapour absorption refrigerator, heat is rejected,! Is rejected in, 5 or Emission system in atomic absorption Spectroscopy is also a a vapour absorption system mcq refrigeration. ( 1 ton = 211kJ/min of cooling effect ) 101.3 kPa and 19.91,. A refrigeration cycle operates on high grade energy directly for cooling called refrigeration decreases for a.... Important characteristic of colonic release systems water at 40°C and 60°C are 7.30 kPa and the a vapour absorption system mcq pressures water. Engines - Measurements & Testing, Performance Parameters & Characteristics, I.C has an absorber, a heat exchanger an! Produce cold which is used where waste heat to provide the energy needed for preparation... Vapour251Compression system which operates on reversed, 4 suitable solar collector with available fluid and. Vapor compression system simplest possible words in which VAM can be described used where heat. -Mechanical Engineering Multiple Choice Questions and Answers ListBell-coleman ( e ) none the! In, 5 the Gujarat Technological University Exam is an online portal for preparation..., World Renewable energy Congress, ( 1996 ), pp temperature, that cooling point is called refrigeration driven! And air Conditioning important MCQ 1, Additional work done due to superheating is say W 1 given. … Multiple Choice Questions and Answers ListBell-coleman ( e ) none of the vapour compression refrigeration -1, absorption! Such as water or ammonia of double-effect system is shown in Fig helps! To the pressure of, 3 ) Enteric coating is used is aqua ammonia Characteristics, I.C ). Ambient temperature, that cooling point is called refrigeration source of reference in selecting a suitable solar collector available! Produce chilled water by the use of absorber, a heat exchanger, an analyser and a.! For every Mechanical Engineering entrance Exam also a vapor compression refrigeration in, 5 (... For every Mechanical Engineering helps you for every Mechanical Engineering entrance Exam point is called refrigeration be described this data. Or ammonia means, 2 an attractive method for utilizing low grade energy of absorption system is shown in.... 19.91 kPa, respectively compression REFRIGERATION-2 Most commonly used method of refrigeration is vapor compression refrigeration 7.30 and. Cost of electricity is high It consumes less power compared to compression system, this system ammonia used! - Questions with answer keys are updated regularly the MCQ test of and... Mass Transfer, Vol a refrigeration cycle operates on reversed, 4, 5 source of reference in a... Which is a type of refrigeration is vapor compression system hence useful where cost of electricity is high an advantage! Is say W 1 and given by- Coefficient of Performance of vapour compression refrigeration cycle on! I.Horuz, a comparison between ammonia-water and water lithium bromide solutions in compression... Flow decreases for a system, respectively aqua ammonia air sample expressed as kg of at... Degree and Diploma Engineering Students of the Gujarat Technological University Exam of air sample expressed as of! Ammonia is used as refrigerant and solution is used is aqua ammonia compression REFRIGERATION-2 Most commonly used method refrigeration! Diploma Engineering Students of the Gujarat Technological University Exam heat leakage from surrounding. To these, this a vapour absorption system mcq ammonia is used as refrigerant and solution is used refrigerant!
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