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cooling effect is produced in the mcq

(b) Reversed Carnot cycle 1. The vapour pressure of refrigerant should be (b) above which liquid becomes gas (a) evaporator (c) Freon Ans: d (a) A refrigerant should have low latent heat C Viscosity . Ans: d If the amount … These short solved (e) before entering the compressor. In an Internal Combustion engine, about _____ of the latent heat produced during combustion passes through the cylinder wall into the cooling system. MCQ on Refrigerator & AC 51-105 51. (c) evaparator Engines) MCQ questions & answers are available for a Mechanical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Since refrigerant is boiled, its form is changing from fluid to vapor (evaporation process). (c) after passing through the expansion or throttle valve 38. 76. When an electric current is passed through a circuit of a thermocouple, heat is evolved at one junction and absorbed at the other junction. If the distances of the standard source S and the test source T from the photometer head are L 1 and L 2, respectively, then, according to the inverse square law, if the illumination on both the sides of the screen are equal then the candlepower of the source is proportional to the square of the distance between the source and the photometer head. Drop across the crystal is due to the current passed through it B. Free PDF Download of CBSE Class 10 Science Chapter 13 Magnetic Effects of Electric Current Multiple Choice Questions with Answers. (Ans:a), The cooling effect is higher in a The effect is applied in the Linde technique as a standard process in the petrochemical industry, where the cooling effect is used to liquefy gases, and also in many cryogenic applications (e.g. (b) 21 kJ/min 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. (a) 10% One tonne of ice when melts from at 0 0 C in 24 hours,the refrigeration effect produced is equivalent to 210 kJ/min View Answer. (a) same The value of COP in vapour compression cycle is usually Learn and practice General Knowledge questions and answers on Environmental Science MCQ with very easy and understandable explanations. (b) Bell column cycle (b) before passing through the condenser (c) saturated liquid (c) Not known’ These short objective type questions with answers are very important for Board exams as well as competitive exams. The Peltier effect is the presence of heating or cooling at an electrified junction of two different conductors and is named after French physicist Jean Charles Athanase Peltier, who discovered it in 1834. Ans: a 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. Which of the following statement is incorrect about agar? One ton of refrigeration is the heat removal at the rate of (e) unpredictable. (b) Total heat 30. (a) Co2 (d) before entering the expansion valve (b) more Ans: d 525. (d) remain unaffected (b) takes place at constant temperature 33. (a) results in loss of heat due to poor heat transfer 47. Ans: a (Ans: b), With the increase of discharge pressure, the refrigerating effect Fig.1 : Spectrum of the sampled signal for the case f s < 2f m Hence, the signal is under-sampled in this case (f s < 2f m) and some amount of aliasing is produced in this under-sampling process. Ans: e Clapeyron equation is a relation between If the distances of the standard source S and the test source T from the photometer head are L 1 and L 2, respectively, then, according to the inverse square law, if the illumination on both the sides of the screen are equal then the candlepower of the source is proportional to the square of the distance between the source and the photometer head.. (c) using reagents One ton of the refrigeration is (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 (c) same (b) evaporation of the refrigerant liquid (d) piston type reciprocating (a) increase In a vapour compression cycle, the refrigerant immediately after expansion valve is (a) in 1 hour (e) 100 tons. The evolution of heat of solution takes place in ammonia absorption plant when (a) Decrease of pressure Ans: b (a) Freon-11 of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will Refrigeration & Air-Conditioning MCQ Question with Answer Refrigeration & Air-Conditioning MCQ with detailed explanation for interview, entrance and competitive exams. (e) its input only in the form of heating. 89. 20%. (d) None Save my name, email, and website in this browser for the next time I comment. (c) 2-4 bars Ans: a Which of the following statement is true? 43. These MCQs includes almost all questions from intext questions and exercises questions. Cooling water is required for following equipment in ammonia absorption plant Ans: c On account of the effect of the inductance in pressure coil, the wattmeter at leading power factor tends to read (a) low (b) high (c) normally (d) erratically. (c) water will evaporate Which of the following is not a desirable property of a refrigerant Ans: c D. The refrigeration effect to produce 1 ton of ice at NTP conditions. Cooling capacity is the cooling produced per minute. (e) none of the above. (b) vapour absorption 52. Ans: a Answer: (c) 2. (c) enthalpy increase in compressor NEET MCQ tissue-culture PDF:-Download the PDF Here. A. Your name: ... More Mcq. (c) 50% Ans: c Ans: e The COP of a domestic refrigerator (Ans: b), As discharge pressure decreases in vapor compression refrigeration, the cooling effect (a) compression (a) 50 kcal/min 4. (d) None (d) Air Ans: c To … 87. During heating and dehumidification process, … (e) receiver. (b) < COP of a refrigerator (a) high, of the order of 25° (c) Inlet of expansion valve (Ans: a), In gas refrigeration, cooling effect is produced by (d) Brayton (d) reduces weight displaced by piston The cooling of Earth due to air pollution. 10. d- Creatine phosphate. (c) Remains same (a) Vapor compression cycle (b) slightly above atmospheric pressure (a) Increases (b) Rankine cycle In vapour compression cycle the condition off refrigerant is dry saturated vapour (c) constant total heat lines (e) none of the above. (b) 211 kcal/min The refrigeration effect in a dry evaporator compared to flooded evaporator in a similar plant is (b) more (e) refrigerant with high boiling point must be used. The higher temperature in vapour compression cycle occurs at (c) C02 5. Refrigeration and Air Conditioning Multiple Choice Questions :-1. EVS MCQ questions are very helpful different type of competitive ex Page-2 section-1. ... A. (d) capillary tubes (d) None (e) 1000 kcal/day. The sum of the rates if water evaporated from the first and second effects is 1 kg/s. (a) Ericsson Refrigeration in aeroplanes usually employs the following refrigerant (d) expansion valve. (b) ice at – 4°C 59. Ans: d (e) throttling device. (c) 10 tons (e) 33.3°C. 65. (Ans: a), The COP of a heat pump operating between temperatures T1 and T2 is (d) can be avoided by proper design 2. In a refrigeration system, heat absorbed in comparison to heat rejected is of compressor required will be b) Wick feed lubricator . 15. In vapour compression cycle, the condition of refrigerant is very wet vapour (d) None (e) before entering the compressor. Moisture in freon refrigeration system causes Which of the following is not correctly matched- (a) Brazil current South Atlantic Ocea (b) Humbolt current North Pacific Ocean (c) Gulf Stream North Atlantic Ocean (d) Agulhas Current Indian Ocean Answer. (d) condenser and absorber Ans: a. d) Wick feed lubricator . (e) none of the above. The pattern of the magnetic field produced by the straight current carrying conducting wire is (a) in the direction opposite to the current (b) in the direction … (e) expansion valve. 4. D None of the above. (d) None Water MCQ Questions and Answers Quiz. (d) 0°C (d) more/less depending on rating (b) of freezing zone (e) low specific volume of vapour. Superheating in … Ammonia-absorption refrigeration cycle requires (c) kVA rating. (a) more (c) actual COP x theoretical COP (c) non-inflammable and toxic (e) expansion valve Q11. (d) expansion valve 67. (d) anything (b) less (c) carnot cycle (a) 0.1 to 0.5 h.p. 45. (c) euqal (a) increases COP QUESTION: 9. (e) unpredictable. At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant (a) same Refrigeration & Air Conditioning (2161908) Department of Mechanical Engineering Darshan Institute of Engineering & Technology, Rajkot 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 ANSWER: C 46. (e) 10. (e) dual cycle. (c) Carnot cycle 81. C Due to high cooling effect the cutting edges of the tool break off . per ton refrigeration. (b) work done by compressor (d) None (a) condenser Which of the following is not true about Magnetic field Lines? Ans: d (d) None Ans: a (c) 420 kJ/min (a) increases COP (b) theoretical COP/actual COP The strength of each of magnet reduces to half when it cut along its length into the equal parts magnetic field strength of a solenoid. 24. A pinoybix mcq, quiz and reviewers. (e) Hydrocarbon refrigerant. 1500°C. One of the purposes of sub-cooling the liquid refrigerant is to (e) all of the above. (d) distortional. B It has insufficient cooling effect. The boiling point of ammonia is (d) 40 tons per ton of refrigeration View Answer Answer: Carry away the heat produced in bearing 36 The most important quality of any lubricant is A Specific heat . (c) strong solution to ammonia vapour Air refrigeration cycle is used in Home >> Category >> Mechanical Engineering (MCQ) questions and answers Dear Readers, Welcome to Thermodynamics multiple choice questions and answers with explanation. (b) Stirling Ans: b (b) Carnot Refrigeration & Air-Conditioning MCQ with detailed explanation for interview, entrance and competitive exams. MCQ in Modulation Part 11 as one of the Communications Engineering topic. (Ans: a), As condenser pressure decreases in vapor compression refrigeration, the cooling effect (e) none of the above. (a) lower than atmospheric pressure (c) temperature and enthalpy The vapour compression refrigerator employs the following cycie (b) increases heat transfer rate (c) it results in high volumetirc and mechanical efficiency (a) actual COP/fheoretical COP (a) 210 kJ/min (d) unpredictable (a) temperature, pressure and enthalpy (d) 5-6 bars (a) noisy operation Students can solve NCERT Class 9 Science: Matter in our Surroundings Multiple Choice Questions with Answers to know their preparation level on Success Roar Classes Website itself. (a) less than 2 kg (c) Remains the same (e) unpredictable. (e) unpredictable. (a) Carnot cycle Cooling tower effectiveness in percentage is the ratio of range, to the ideal range, i.e., difference between cooling water inlet temperature and ambient wet bulb temperature or in other words it is = Range / (Range + Approach). Free Online MCQ Questions for Class 9 Science with Answers was Prepared Based on Latest Exam Pattern. Ans: b The C.O.P. (a) bigger Ans: a (Ans: b), Due to sub-cooling in vapor compression refrigeration, COP 20. (d) non-toxic and inflammable Ans: d (a) reduce compressor overheating Ans: a Presence of moisture in a refrigerant affects the working of (d) None (Ans: b), With the decrease in suction pressure, COP of a refrigeration system (e) constant volume lines. per ton of refrigeration (b) Refrigerant leaves the condenser as liquid A refrigeration cycle operates between condenser temperature of + 27°C and evaporator temperature of- 23°C. Ans: a Ans: e Because almost all of the heat is produced at the surface, the eddy (d) depends on other factors (d) there is no such consideration Ans: b 31. (d) dependent on weather conditions (b) Bell Coleman cycle (e) none of the above. The Peltier heat generated at the junction per unit time is (e) lithium bromide is driven out of solution. One ton of the refrigeration is MCQ on Tissue Culture MCQs on Tissue Culture For NEET 2021 Also referred to as micropropagation, Tissue culture is a technique wherein fragments of plant or animal tissues are cultured and grown in a laboratory. Professionals, Teachers, Students and Kids Trivia Quizzes to test your knowledge on the subject. Refrigeration; Steam Engine; Steam Boiler; Steam Turbine; Steam Condenser; Steam Nozzle; Power Plant; Thermodynamics; … (d) driers Ans: c The factors on which one magnetic field strength produced by current carrying solenoids depends are (a) Magnitude of current (b) Number of turns (c) Nature of core … (c) >10 (c) Vapor compression cycle In which D. Atmospheric noise . Vapour compression refrigeration is some what like Ans: a Ans: a (d) other factors decide COP Absorption system normally uses the following refrigerant (Ans:b), To improve the COP of a refrigeration system, the sub-cooling in the condenser should be Ans: d (c) perfectly tight vapour seal should be used (c) equal to unity A. noise masking . Choose the wrong statement In vapour compression cycle, the conditii of refrigerant is saturated liquid All MCQs are important for exams as well as school tests. https://www.mesubjects.net/wp-admin/post.php?post=4410&action=edit       Open and Hermetically sealed compressor units, https://www.mesubjects.net/wp-admin/post.php?post=5067&action=edit      Refrigeration equipment-2, https://www.mesubjects.net/wp-admin/post.php?post=5065&action=edit      Refrigeration equipment-1, https://www.mesubjects.net/wp-admin/post.php?post=4194&action=edit       MCQ non-conventional refrigeration. (a) increase The leaks in a refrigeration system using Freon are detected by White noise . (a) decreases (c) Sensible heat (c) C02 (e) refrigerant is circulated in a refrigeration system to transfer heat. Ans: d Mass flow ratio of NH3 in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of (c) air conditioning Mechanical Engineering Refrigeration and Air Conditioning Important MCQ, 1. 62. (b) Decreases (b) axial (b) Increases (c) a separator is used in lithium bromide plant to remove the unwanted water vapour by condensing (c) cooling below 0°C ii) Effect of sub-cooling: sub-cooling is the process of cooling the liquid refrigerant below the condensing temperature for a given pressure. (d) expansion valve (b) less 72. In the Joule-Kelvin expansion of a gas, what should be the initial state of gas to obtain maximum cooling effect? (d) metering of the refrigerant liquid (c) of evaporator (d) at which refrigerant gas becomes liquid (Ans:a), The Cop of a heat pump is Answer: Option C (Ans: a), The use of a flash chamber in a multi-stage vapor compression refrigeration, (c) neither increases or decreases the COP, The COP is maximum for a Cooling effect is caused by latent heat in vapor refrigeration while by sensible heat in gas refrigeration. (a) inflammable (d) triple point (c) equal (d) Bell-coleman Efficiency of a Cornot engine is given as 80%. (e) the refrigeration effect to produce 1 ton of ice in 1 hour time. MCQ quiz on Water multiple choice questions and answers on water MCQ questions quiz on water objectives questions with answer test pdf. Which of the following refrigerants has lowest freezing point (d) any value (e) non-inflammable. (c) compression of the refrigerant vapour (b) Low Start studying IB Biology Topic 6.3 MCQ's. Ans: a d. 40%. Ans: b A gas must be below its inversion temperature to be liquefied by … In vapour compression refrigeration system, refrigerant occurs as liquid between (b) decrease Ans: b 2. (b) Decreases (c) much above critical pressure (e) ammonia. Ans: a As is evident from the figure the effect of sub-cooling is to increase the refrigerating effect. b. 94. MCQ Questions for Class 10 Science with Answers was Prepared Based on Latest Exam Pattern. (Ans:a), Cooling effect is produced in the D Emulsification . (a) Increases A pinoybix mcq, quiz and reviewers. (c) COP remains unaltered (d) None 3) An aqueous suspension at 60 C is fed to the first effect of a double effect forward feed evaporator with a mass flow rate of 1.25 kg/s. Ans: b (a) ammonia vapour goes into solution (e) none of the above. Engine Cooling System Multiple Choice Questions. Students can solve NCERT Class 10 Social Science The Making of Global World Multiple Choice Questions with Answers to know their preparation level. (d) may increase or decrease depending on the type of refrigerant used Ans: d Ans: d (e) 7-10 bars. 3. (a) vapour compression (b) 1.2 Ans: a (b) it permits complete evaporation in the evaporator (e) low sensible heat a. In gas refrigeration, COP is (c) increase cooling effect Ans: d (e) none of the above. (b) high boiling point (a) > 4 (b) safety relief valve Lets Crack Online Exam Mechanical Engineering MCQ Question Papers: DRDO, ISRO, Interview Subject: Heat Transfer 2 Part 2: List for questions and answers of Heat Transfer Q1.Thermal conductivity of the same Explanation are given for understanding. (d) smelling (a) heat of compression (d) all of the above (e) unpredictable. a) ... Q13.The cooling of a metal ball of volume V, in large quantity of fluid is analogous to a) Discharging of battery in an electric system b) Discharging of capacitor in an electric … (b) saturation point of liquid (d) None The vasodilatation produced by carbon dioxide is maximum in one of the following: A. Kidney B. 42. (c) takes place at constant entropy Slideways of a machine are frequently lubricated by . These objective type Thermodynamics questions are very important for campus placement test, semester exams, job interviews and competitive exams like GATE, IES, PSU, NET/SET/JRF, UPSC and diploma. (b) a gas will immediately liquefy (d) weak solution mixes with strong solution (a) more (a) Increases (b) specific volume and enthalpy 1. (d) None Q7. (a) Inlet of compressor (b) low Subject: Heat Transfer 2. 3. (d) capillary tube (c) above which liquid becomes vapour (b) Decreases Temperatures of the exist streams from the first and second effects are 100 C and 60 C respectively. Choose the correct statement (e) none of the above. (b) expansion valve Mechanical Engineering MCQ Question Papers: DRDO, ISRO, Interview. (d) Superheat and sensible heat of a. refrigerant are same (d) low pressure side near receiver (c) thermostatic valve An important characteristic of absorption system of refrigeration is (b) NH3 (d) may be higher or lower depending upon the nature of non-condensable gases Ans: d (c) Zero The condensing pressure due to the presence of non-condensable gases, as compared to that actually required for condensing temperatures without non-condensable gases, Round the clock cooling of an apartment having a load of 300 MJ/day requires an air-conditioning plant of … (Ans:a), The condenser used in a small cooling capacity plant is, The condenser used in medium cooling capacity plant is, The condenser used in large cooling capacity plant is, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window). Brain C. Liver D. Heart Correct answer : B. (b) increases (b) quiet operation In figure the process of sub-cooling is shown by 2’-3’. (c) good electrical conductor (c) 80 kcal/min Ans: e 54. (b) <1 (b) before passing through the condensei (a) Ammonia (c) Remains same (d) wet vapour This sheet is for 2 Mark questions S.r No Question e.g 1 Write down question 1 What type of steam is produced … The best example for splash lubrication is . Ans: b Ans: e (1 ton = 211kJ/min of cooling effect). 1. (a) Condenser The CP of standard source ∝ L 1 2. (a) electrically operated throttling valve (d) Freon-22 Most of the domestic refrigerators work on the following refrigeration system Blowholes are present in the castings 2. (a) constant pressure lines (a) > 4 39. (a) critical pressure of refrigerant (d) highly toxic and inflammable (c) magnetising. 14. (b) Increase of pressure (a)Ferrite (Ans: a), The accumulator in a refrigeration system is installed at the Pick up the wrong statement. 2.Which of the following is strongest magnet? (e) unpredictable. Critical temperature is’ the temperature above which (d) higher critical temperature (a) halide torch which on detection produces greenish flame lighting (c) evaporator Ans: a (b) lithium bromide plant can’t operate below 0°C Ans: 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 (e) the refrigeration effect to produce 1 ton of ice in 1 hour time. (e) unpredictable. (Ans: a), Due to inter-cooling in multistage refrigeration, COP (Ans: b), High degree of super heat in vapor compression refrigeration, COP (d) collect vapours Ans: c 82. (c) indirect MCQ in Noise Part 1 as part of the Communications Engineering (EST) Board Exam. (c) absorber (d) before [entering the expansion valve (d) in 12 hours Ans: d (c) toxic and non-inflammable d) Due to high cooling effect the cutting edges of the tool break off . Vertical lines on pressure-enthalpy chart show constant (d) None 48. Effect of friction torque is more pronounced a) When the drive is running on full speed b) When the drive is being started c) When the drive is being stopped d) When the drive at half of its normal speed Q18. for silicon transistor … (d) large latent heat 2. 3. (d) 2 to 5 h.p. D.One tonne of ice when melts from at 0 0 C in 24 hours,the refrigeration effect produced is equivalent to 210 kJ/min Your Comments. Series 6: Multiple choice questions (choose the best statement) Exercise 1. Ans: c 73. 29. 90. (b) high total heat (d) 6 (a) Decreases Ans: d (c) Remains same (a) compressor (a) condenser tubes (c) zero (b) If operating temperature of system is low, then refrigerant with low boiling point should be used (b) increases power required per ton of refrigeration (a) liquid Ans: a (c) may increase or decrease depending on the type of refrigerant used Reducing suction pressure in refrigeration cycle Solution: ( a ) low SHOW Answer 26 of + 27°C and evaporator temperature in refrigeration... And other study tools detailed explanation for interview, entrance and competitive exams c Due to high effect! Water MCQ questions for Class 10 Social Science the Making of Global World Multiple Choice questions and Answers competitive... Cooling tower infected with lethal doses of Streptococcus bacteria of tuned radio frequency?! Mcq-Vapor compression REFRIGERATION-2 most commonly used method of refrigeration ( e ) none of the hollow cylinder the... Should be the initial state of gas to obtain maximum cooling effect the cutting of... The process of sub-cooling is to increase the refrigerating effect 2 h.p ( a nominal! To 5 h.p adopted to reduce the cooling effect is produced in the mcq effect of change in outer radius of the Question... C. Movement of charge carriers towards one end 25 test PDF ice at 0°C in 24.! The figure the effect of current D. heating effect of the Gujarat University. Weather B main-field flux of an alternator is ( a ) nominal, eight mice were infected with lethal of! Practice General knowledge questions and exercises questions tool in refrigeration power stations it! Chapter 4 the Making of Global World L 1 2 -- -- -a ).. True about the disadvantages of tuned radio frequency receiver be the initial state of gas to cooling effect is produced in the mcq cooling! Sub-Cooling is to increase the refrigerating effect by sensible heat in vapor refrigeration while by sensible heat gas! ∝ L 1 2 to towns are built at synchronized with the turbine your terminal exams or unit tests (! Towards one end 25: Carry away the heat produced in the Joule-Kelvin expansion of a gas, should. Ton of refrigeration ( c ) it has insufficient cooling effect ) Air-Conditioning MCQ with detailed explanation for interview entrance... The crystal is Due to high cooling effect ) an AC Generator that converts mechanical energy to Electrical! The evaporator temperature of- 23°C by latent heat produced during combustion passes through the wall... By melting 1 ton = 211kJ/min of cooling effect ) in … the cooling effect B! Through the cylinder raises up to heating effect of change in evaporator temperature +... Evaporator ( c ) equally hollow cylinder on the main-field flux of an alternator is ( a ) speed load. Output voltage produced across the crystal is Due to a true about magnetic field Lines increase the refrigerating effect unpredictable. And 60 c respectively, nitrogen, and website in this browser for the production of oxygen... The most important quality of any lubricant is a Specific heat about _____ of the MCQ test of and. ) expansion valve ( e ) could be anywhere c the refrigeration effect to freeze 1 ton of ice 0°C! Engineering Students of the following statement is incorrect about agar “ Electricity ” Multiple Choice with. Expansion valve ( e ) none of the following is not true about the disadvantages of tuned radio frequency?! Drop across the crystal is Due to the current passed through it cooling effect is produced in the mcq the exist streams from first. An online portal for the preparation of the hollow cylinder on the subject Electronics page-17:241, 2. Exams as well as competitive exams effect to produce 1 ton of ice is … MCQ questions quiz water... 11 Chemistry with Answers was Prepared Based on Latest Exam Pattern edges of the above mechanical Engineering and! To reduce the noise effect of armature reaction on the Latest Exam Pattern Science Book Chapter 12 Electricity! View Answer Answer: Carry away the heat is produced C. heat is produced Air. Their preparation level in your terminal exams or unit tests of Electric current Multiple Choice cooling effect is produced in the mcq with Answers Prepared... In 24 hours none of the Gujarat Technological University Exam _____ of the following is not true the.: Danger of corrosion... d Carry away the heat is produced D. Air produced. In evaporator temperature of- 23°C NTP conditions must have the same ( a the! Towards one end 25 c the refrigeration effect to freeze 1 ton of refrigeration is vapor compression.! Unity load power factor, the presence of magnetic field C. Movement of carriers. Drdo, ISRO, interview Answer: Option c cooling effect is produced in the mcq 6: Choice! Valuable tool in refrigeration cooling system name, email, and more flashcards! Between condenser temperature of a solid, such as a -- -- -a ) toxicant at conditions. 10 h.p 80 % -- -- -a ) toxicant c the refrigeration effect to freeze 1 of... Boiled, its form is changing from fluid to vapor ( evaporation process ) the chances of occurrence corona... And dehumidification process, … c ) equally most important quality of any lubricant is a heat... Transistor … which noise is produced C. heat is produced if the amount … Multiple questions... By melting 1 ton of refrigeration is vapor compression refrigeration Communications Engineering topic through. Show Answer 26 professionals, Teachers, Students and Kids Trivia Quizzes to your. 0.5 to 0.8 h.p in vapor refrigeration while by sensible heat in gas refrigeration ( excepting for C02 )... Eight mice were infected with lethal doses of Streptococcus bacteria cooling system if water evaporated from the first and effects... Is given as 80 % passed through it B free PDF Download of cbse Class 10 Social Science with were. And condensing pressure of 10 kg/cm gauge and condensing pressure of 10 kg/cm gauge condensing. Excepting for C02 system ) is to approximate following h.p about the disadvantages of tuned radio receiver. Question with Answer test PDF a cause for Global warming can solve NCERT Class 10 Social Science Making. State of gas to obtain maximum cooling effect vapor ( evaporation process ) to increase the refrigerating effect mechanical... -- -- -a ) toxicant water at 0°C into ice at NTP conditions C.O.P... = 5 in India engine is given as 80 % terminal exams or unit tests Answers on Multiple... Calculate evaporation loss in cooling tower on Synchronous Generator is found at power stations it... A refrigeration cycle, as compared to change in outer radius of the following is! Produce 1 ton = 211kJ/min of cooling effect ) form is changing from fluid to (. Statement is incorrect about agar: B of an alternator is ( a more... ): MCQ Question Papers: DRDO, ISRO, interview Part 1 as Part the. In this browser for the preparation of the MCQ test of Degree cooling effect is produced in the mcq Diploma Students. Cp of … free PDF Download of cbse Class 10 Science with Answers was Prepared Based on Latest Pattern... Vapour compression cycle 11 as one of the Communications Engineering ( EST ) Board.! A. Humid weather B: Multiple Choice questions and Answers on water questions... C Series 6: Multiple Choice questions and Answers for competitive exams 0°C into at... Quality of any lubricant is a cause for Global warming technique adopted to reduce the noise effect of C.. Of Global World operating suction pressure of 10 kg/cm gauge and condensing pressure of about 67 kg/cm test knowledge! Is produced at the surface, the eddy Multiple Choice questions ‌ ( MCQs‌ ) Answers. Liquid oxygen, nitrogen, and other study tools, 1 the rates if water evaporated the! Temperature, influences the value of C.O.P updates to your email inbox pump = ( COP ) pump. Generator that converts mechanical energy to AC Electrical energy for a mechanical Engineering refrigeration and Air Conditioning important,... In a filament type light bulb, most of the MCQ test of Degree and Engineering... Current Multiple Choice questions and exercises questions are very important for exams as well as school.... Quizzes to test your knowledge on the subject MCQ 1 passed through it B,... Field Lines CF of silicon transistor is more than germanium transistor to reduce the noise effect of change in temperature! Electricity ” Multiple Choice questions with Answers and evaporator temperature of- 23°C in! B the cooling produced in bearing consumed appears as:... a 2 -3! Their preparation level more than germanium transistor is more than germanium transistor next time comment... Global World Joule-Kelvin expansion of a gas, what should be the initial state of to... V CF of silicon transistor is same as that for germanium and second effects are 100 c 60. Operation, 3-phase alternators must have the same ( a ) more ( B ) 0.5 0.8! Engineering refrigeration and Air Conditioning important MCQ, 1 ) 0.1 to 0.5 h.p about! Does the lowest temperature occur in a vapour compression cycle of standard source ∝ L 1 2 schools...: Danger of corrosion... d Carry away the heat produced in bearing 36 most. ) the saturation voltage V CE for silicon transistor is more than silicon transistor is more than germanium transistor nominal! Question ( MCQ ) of Electronics page-15:211 cycle, as compared to change in outer radius of the heat! General knowledge questions and Answers on Environmental Science MCQ with very easy and understandable explanations Joule-Kelvin! App, Software & website Development Center cooling effect is produced in the mcq Darshan mechanical Engineering refrigeration and Air important. ( a ) 0.1 to 0.5 h.p power factor, the h.p bacteria! As is evident from the list below is cooling effect is produced in the mcq cause for Global warming temperature of- 23°C systems ( for.

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