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The design of this cascade refrigeration machine is currently used for building-up a demonstrator to prove the concept experimentally. In this page you can learn various important refrigeration … Practice Test: Question Set - 01 1. 10. Enter the code above here : India – https://amzn.to/333RfwG. Figure 1 depicts a typical, single-stage vapor-compression system. Answer: Option A Latest Refrigeration and Air Conditioning Questions and Answers 1. : C Which of the following conductors is applicable for underground service entrance conductors? Sub-cooling causes increase in COP of the system. Mechanical Engineering Refrigeration and Air Conditioning Important MCQ 1. What is the desirable characteristics of a refrigerant? Practice Test: Question Set - 16 1. a. (Bottom on mobile) The cascade cycle is often employed for devices such as ULT freezers. Home دستهبندی نشده reciprocating air compressor is best suited for mcq. Building Materials MCQ Apps on Google Play. In a refrigeration cycle, the flow of refrigerant is controlled by (A) Compressor (B) Condenser (C) Evaporator (D) Expansion valve. Transformer Power System Protective Relay Basic Electrical Interview Questions & Answers MCQ… Carnot Cycle Process: The Carnot cycle consists of Two Isothermal Processes and Two Adiabatic Processes. The design is to be based upon the ideal vapor-compression refrigeration cycle, with four components: a cooler (where we reject the heat), a throttle, a heater (where we absorb the heat), and a compressor. 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. C. Petrol engine. An alternative to cascade refrigeration is to use a mixed refrigerant. in the rotor circuit . Menu. 1. It is applicable for perfect gas whose efficiency is considered to be maximum. It Helps customers improve productivity and reliability by optimizing plant operation. Vapor-compression uses a circulating liquid refrigerant as the medium which absorbs and removes heat from the space to be cooled and subsequently rejects that heat elsewhere. which will improve your skill. 05. 16. Q2. It precisely keeps track of and quickly feeds back conditions of rotating machinery which are the key production assets of plants. Cascade refrigeration systems are not common in gas processing. Refrigeration And Air Conditioning MCQ question is the important chapter for a Mechanical Engineering and GATE students. Home دستهبندی نشده reciprocating air compressor is best suited for mcq. Work sampling is applied for (A) Estimation of the percentage utilization of machine tools (B... 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Cascade refrigeration systems are not common in gas processing. Basics of Vapor … Low-level refrigeration is typically provided using mixed refrigerants or expansion process (GPSA, 2004). Answer: Option B Page-1 section-2 Menu. Many industrial applications like food storage, liquefaction of petroleum vapour … ANSWER: (a) Directly. Electronic Engineering MCQ Question Papers: ENTC, IT Interview Placement. in the rotor circuit Ans: a. 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. Transformer Power System Protective Relay Basic Electrical Interview Questions & Answers MCQ. An important … 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. The superposition theorem is applicable to (A) Voltage only (B) Current only (C) Both current and voltage (D) Current, voltage and power. MCQ Refrigeration Edit Practice Test: Question Set - 01. 02. 10MW or more C. 500KW or more D. 1000KW or more Ans. Mechanical Engineering Refrigeration and Air Conditioning Important MCQ 1. TOP Refrigeration and Air Conditioning -Mechanical Engineering Multiple choice Questions and Answers ListBell-coleman (e) none of the above. One tonne of refrigeration is equal to. A. type THWN. a) Rotor rheostat control b) By operating two motors in cascade c) By injecting an e.m.f. One tonne refrigareting machine means....... A.One tonne is the total mass of the machine, C.One tonne of water can be converted into ice, D.One tonne of ice when melts from at 00C in 24 hours,the refrigeration effect produced is equivalent to 210 kJ/min. 16. a) It increases continuously. 10.2.1.1.3 Mixed Refrigerants. ANSWER: (a) Directly. A. saturation point of vapor B. saturation point of liquid C. sublimation temperature D. triple point E. critical point. New RS Khurmi Mechanical Engineering PDF Free 2 / 20. We want to design a vapor-compression refrigeration cycle to absorb heat from a cool environment and reject it to a warm environment. Two-three-four stage systems are in use. Directly b. 21 KJ/min; 210 KJ/min; 420 KJ/min; 620 KJ/min; 2. For a voltage source (A) Terminal voltage is … C. type MI. Answer: Option A. MCQ ~ Air Refrigeration Cycles 1. a. Refrigeration And Air Conditioning MCQ question is the important chapter for a Mechanical Engineering and GATE students. 4) State with reasons whether the statement is true or false. Information Technology IT MCQ Apps on Google Play. What is the refrigerator? If a type 0 system is subjected to step input, what is its effect on steady state error? Ans: d 5. Correct Answer. 51) For the elimination of feedback loops, the derivation based on transfer function of _____ loop is used. D. type USE. With the introduction of R-502, temperatures down to approximately -50°F can be obtained with an acceptable compression ratio. B. Compressed air. Home. Mcq For Mechanical Maharashtra. (a) By changing the number of stator poles (b) Rotor rheostat control (c) By operating two motors in cascade (d) By injecting e.m.f. Automobile Engineering . Refrigeration Cycle and Input Condition of Natural Gas 03/33. MCQ in Refrigeration Engineering and its Applications; MCQ in Air Conditioning; Continue Practice Exam Test Questions Part 5 of the Series ⇐ MCQ in Power Plant Engineering Part 4 | ME Board Exam . 3. in the rotor circuit d) By changing the number of stator poles Electricalunits.com. Correct Answer. Goal. IF YOU THINK THAT ABOVE POSTED MCQ … The superposition theorem is applicable to (A) Voltage only (B) Current only (C) Both current and voltage (D) Current, voltage and power. Refrigeration and Air Conditioning Refrigeration and Air Conditioning. Answer: Option B Refrigeration MCQ Apps on Google Play. Mcq Added by: Muhammad Bilal Khattak. If the complex system function is analytic in … RME Board Exam 1995 . ANSWER: b. cascade refrigeration system . mcq for refrigeration and air conditioning, mcq in refrigeration and air conditioning, mcq on refrigeration and air conditioning, ... Clapeyron equation is applicable for registration at (a) saturation point of vapour (b) saturation point of liquid (c) sublimation temperature (d) triple point (e) critical point. Refrigeration And Air Conditioning MCQ question is the important chapter for a Mechanical Engineering and GATE students. One tonne of refrigerating machine means that, One tonne is the total mass of the machine; One tonne of refrigerant is used; One tonne of water can be converted into ice. New buildings C. Both old and new building D. A or B Ans. Indirectly c. Orthogonally d. Diagonally. Refrigeration Cycles. Home; About; Blog; Contact The Cannot coefficient of performance of cycle will be (a) 0.2 (b) 1.2 (c) 5 (d) 6 (e) 10. 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. Number of different speed that can be obtained from two induction motors in cascade is. Simple. 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. Practice Test: Question Set - 01 1. 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. type UF. Refrigeration and Air Conditioning Objective Questions and Answers pdf :-51. Answer: Option A 07. Cascade refrigeration is an extension of vapor compression refrigeration in order to achieve lower temperatures. 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. It was proposed by 'Sadi Carnot' in 1824. Correct Answer. (1 ton = 211kJ/min of cooling effect). commercial refrigeration troubleshooting guide. Mecahanical Engineering; Electrical Engineering; Electronics Engineering; Civil Engineering ; Air Compressor - Air Compressor objective questions and answers. b. cascade refrigeration system c. vapour absorption refrigeration system d. none of the above View Answer / Hide Answer. Refrigeration & Air-Conditioning MCQ with detailed explanation for interview, entrance and competitive exams. A refrigerant should have (a) Tow specific heat of liquid (b) high boiling point (c) high latent heat of vaporisation (d) higher critical temperature (e) low specific volume of vapour. Mining industry usually employs following motive power..... A. AC electric motor. The drawback of speed control of a slip ring induction motor with the help of resistance in the circuit is that. 5. Explanation are given for understanding. Which of the following methods is easily applicable to control the speed of the squirrel cage induction motor? Keywords: cascade, CO 2, sublimation, R23 1. Low-level refrigeration is typically provided using mixed refrigerants or expansion process (GPSA, 2004). Ans: d 5. Mining industry usually employs following motive power..... A. AC electric motor. c) Inductance. Answer: Option A Ans: a. Both these processes are reversible and therefore It is the most efficient cycle, as it involves no losses. Practice Test: Question Set - 07 1. Cascade Refrigeration 820 Airport Road Jackson, MI 49202 _____ Phone: 517-750-2100 Fax: 517-783-1350 Email: info@cascaderefrig.com Office Hours: 8:00 a.m. – 4:30 p.m. Monday – Friday 24 hour EMERGENCY service Clapeyron equation is applicable for registration at_____? Pick up the wrong statement. A cascade refrigeration cycle is a multi-stage thermodynamic cycle. Indirectly c. Orthogonally d. Diagonally. Explanation are given for understanding. D. Diesel engine View Answer. Correct Answer. One tonne of refrigeration is equal to. A refrigeration cycle operates between condenser temperature of + 27°C and evaporator temperature of- 23°C. 03. A refrigeration cycle operates between condenser temperature of + 27°C and evaporator temperature of- 23°C. a. TOP Refrigeration and Air Conditioning -Mechanical Engineering Multiple choice Questions and Answers ListBell-coleman (e) none of the above. Standard Book for Chemical Thermodynamics “Introduction To Chemical Engineering Thermodynamics” by J. M. Smith, H. C. Van Ness, et al. 23. Free download in PDF Refrigeration and Air Conditioning Multiple Choice Questions and Answers for competitive exams. Can't read the image? 3) A crosscurrent cascade of N ideal stages is used to treat a feed stream of molar flow rate E. The feed stream contains a solute which is to be recovered by a pure solvent having a molar flow rate S. The solvent is divided equally between these N stages. Your name: Your Email: Your … Closed c. d) Capacitance . Practice Test: Question Set - 01 1. 50) Associative law for summing point is applicable only to those summing points which are _____connected to each other. Refrigeration and Air Conditioning Objective Questions and Answers pdf :-51. The light components lower the … Ans: b 2. Chemical Engineering. Clapeyron equation is applicable for registration at_____? These short objective type questions with answers are very important for competitive exams. PDF Mechanical Engineering Objective Type book pdf. Cooling effect is caused by latent heat in vapor refrigeration while by sensible heat in gas refrigeration. Safety valve can effectively prevent excessive pressure. 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). 3. If in a pin-jointed plane frame (m + r) > 2j, then the frame is (Where ‘m’ is number of members... Chain Drives MCQ Practice Test: 1. 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. INTRODUCTION Environmental simulation and also some specific applications in chemical and pharmaceutical industry, such as freeze-drying processes require a low cooling temperature range of -50 °C to -85 °C. 201. Clapeyron equation is applicable for registration at_____? Pure Refrigeration is our line of configurable modular systems for any industrial application. Cascade Control guidelines are presented for continuous systems but are applicable to digital con trol systems. in the rotor circuit d) By changing the number of stator poles Electricalunits.com. 09. Page-2 section-4 2. b) it remains constant. 06. Cascade refrigeration is applicable to (a) Air refrigeration (b) Vapor compression refrigeration (c) Vapor absorption refrigeration (d) None (Ans: b) 1. It precisely keeps track of and quickly feeds back conditions of rotating machinery which are the key production assets of plants. Refrigeration is measured in tons of refrigeration. reciprocating air compressor is best suited for mcq. In this system series of single stage vapor compression system are thermally coupled with the evaporator of HTC and condenser of LTC, this combination is known as cascade. This test comprises of 50 questions on Thermodynamics. Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams. Closed c. Open b. Carnot Cycle Process: The Carnot cycle consists of Two Isothermal Processes and Two Adiabatic Processes. Refrigeration MCQ Apps on Google Play. Financial Management MCQ Apps on Google Play. c) It decreases monotonically Refrigeration & Air-Conditioning MCQ with detailed explanation for interview, entrance and competitive exams. Some refrigerants are well suited for high and medium temperature applications, and some are better suited and for a lower temp applications. Answer: Option D Q.37 The energy conservation building code is applicable to____ A. old buildings B. 100KW or more B. ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) PDF Mechanical Engineering Objective Type book pdf. In this article, we will explore the pros and cons of different solutions for CO 2 refrigeration in warmer climates – from basic cascade systems to the advanced ejector technology that is expected to set new standards for CO 2 refrigeration in the future.. CO 2 is one of the most environmentally friendly refrigerants with a GWP of only 1; it is widely available as a by-product … 2. Vibration analysis & diagnostic system that is applicable to a variety of rotating machinery, helps safe operation and to improve operational efficiency. The chapter concludes with common examples that highlight the importance of conforming to the design criteria. Financial Management MCQ Apps on Google Play. (a) By changing the number of stator poles (b) Rotor rheostat control (c) By operating two motors in cascade (d) By injecting e.m.f. In accordance to Laplace domain theory, the transform admittance of resistance is _____ a) Impedance. Answer: Option D Question is ⇒ Ebers Moll model is applicable to, Options are ⇒ (A) bipolar Junction transistor, (B) N MOS transistor, (C) unipolar junction transistor, (D) field effect … Pick up the wrong statement. Refrigeration and Air Conditioning Refrigeration and Air Conditioning. Answer: Option D Pump Pressure Control Pump pressure control with ICS and CVPP Applicable to pump circulation systems that require constant differential Ans: a 6. 04. b) Conductance. MCQ's Search Engine. 24. Q2. a cascade refrigeration system if he has a thorough understanding of the basics of the refrigeration cycle and its underlying principles. Which of the following methods is easily applicable to control the speed of the squirrel-cage induction motor ? reciprocating air compressor is best suited for mcq. Ans: b 2. A mixed refrigerant is a mixture of two or more components. Applicable to all pump circulation systems. A standard ice point temperature corresponds to the temperature of (a) water at 0°C (b) ice … 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. Building Materials MCQ Apps on Google Play. a. Air in an ideal Diesel cycle is compressed from 3 L to 0.15 L and then it expands during the constant pressure heat addition process … C. Petrol engine. These short solved questions or quizzes are provided by Gkseries. A. saturation point of vapor B. saturation point of liquid C. sublimation temperature D. triple point E. critical point. B.Compressed air Your Comments. A standard ice point temperature corresponds to the temperature of (a) water … Superposition theorem can be applied only to circuits having (A) Resistive elements (B) Passive elements (C) Nonlinear elements (D) Linear bilateral elements.
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