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Related MCQs

• The efficiency of a Carnot engine is given as 0.75. If the cycle direction is reversed, what will be the value of COP of reversed Carnot cycle
• In a Carnot cycle the heat is rejected at
• Which of the following introduces irreversibility in the actual Carnot engine operation?
• Other factors remaining constant, if the temperature of sink is increased, the efficiency of the Carnot engine will
• A Rankine cycle working with saturated steam differs thermodynamically from a Carnot cycle only in the fact that
• If the temperature of the sink is decreased, the efficiency of a Carnot engine
• The area of pv diagram for a Carnot cycle represents
• A Carnot refrigerator extracts 100 kcal of heat per minute from a cold room which is maintained at - 15?C and it is discharged to atmosphere at 30?C. The horse power required to run the unit would be
• In a Carnot cycle the process which must be carried out at extremely slow speed is
• Three Carnot engines A, B and C having source temperature of 750?K, 700?K and 650?K have sink temperatures respectively 400?k, 350?k and 300?k. Which engine is the least efficient?