refrigeration and air conditioning objective questions || refrigeration and air conditioning mcq

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[@RanjeetKumar-we1tc]

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[@mechkunal202]

Q 5. Cop will be 6.
Q 12. Vapor compression refrigeration cycle

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cop 5 hogi...10/2 = 5

[@hussainkumar5971]

Ye sir poora galat padah rahe h...CO2 ka freezing point...uska boiling pont se bhi jyada h...kuch bhi padah rahe h ye tho

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[@Jitendragurjarsir]

Q 12 ka answer A hona chahiye vapour compression refrigeration cycle

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[@mechkunal202]

Q 13 ans (b) -2kJ/k because heat is removing from the system. When heat is at added to the system then entropy increases, when heat is removed from the system then entropy decrease. Entropy can be +ve, -ve, or zero. According to question heat is removed from the system so dq will be -ve , thatswhy entropy will be -ve.

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[@Er_Artiu_dushad]

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Sir domestic refrigerator to vapour compression cycle par work kartaa hiii ....tbhi to usme compressor hota hiii

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Sir ji, question no. 12 ka answer vapour compression cycle hota hain na ?

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Yes

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Sir g 12. Ka ans. Vepor compesion refrigeration system pe kaam karata h aajkal to

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11 d

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How the boiling point of carbon dioxide is less than its freezing point??

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Exactly bhai...kuch bhi pada rahe h ye tho...Q.12 bhi galat ans diye h...aur wo basic question h

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A stream of 15 kg/s of aqua ammonia having concentration of 0.8 and a pressure of 5
bar mixes with another saturated liquid stream with flow rate of 10kg/s at 100°C at the
same pressure. During mixing it receives heat the rate of 4000 KJ/s. Obtain mixture
concentration enthalpy, and amount of liquid and vapour after mixing

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12 A hoga B IS WRONG

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5th que ans is wrong...... The ans is 6

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6 kyo

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[@byneerajrajput]

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