Heat Engines | MCQs

    Q1: A Carnot engine whose sink is at 300K has an efficiency of 40%. By how much should the temperature source be increased so as to increase its efficiency by 50% of original efficiency?

    • A. None of these
    • B. 275K
    • C. 250K
    • D. 325K

    Q2: The heat engine operating in reverse is called ?

    • A. Electric generator
    • B. Refrigerator
    • C. Electric motor
    • D. Carnot engine

    Q3: The efficiency of a Carnot engine will be maximum if?

    کارنوٹ انجن کی کارکردگی زیادہ سے زیادہ ہوگی اگر؟
    • A. T2 is equal to zero
    • B. T2 is equal to the temperature of the source
    • C. T2 is equal to room temperature
    • D. T2 is equal to absolute zero

    Q4: If the temperature of the cold reservoir is 12°C and the temperature of the hot reservoir is 27°C, then the efficiency of the Carnot engine is?

    • A. 15%
    • B. 10%
    • C. 5%
    • D. 2%
✅ Correct: 0 | ❌ Wrong: 0 | 📊 Total Attempted: 0
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