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Carnot Engine and Efficiency MCQs

Prepare for Carnot Engine and Efficiency MCQs with verified questions, past-paper solutions, and conceptual explanations for CSS, PMS, FPSC, PPSC, and NTS examinations.

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Topic Notes: Carnot Engine and Efficiency

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Master Carnot Engine and Efficiency MCQs for Competitive Exams with our comprehensive, verified question bank. Designed for students and competitive exam aspirants across Pakistan, this study resource provides topic-wise practice questions for CSS, PMS, FPSC, PPSC, SPSC, KPPSC, BPSC, NTS, and university entry tests.

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Preparation Guide & Key Focus Areas for Carnot Engine and Efficiency MCQs

When preparing for Carnot Engine and Efficiency MCQs (Physics), focus on core definitions, historical timelines, relevant provisions, and commonly tested factual points. Review each question below, test your knowledge against the given options, and inspect the detailed explanation to solidify your understanding.

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11
The source and sink temperature of Carnot engine are 400 K and 300 K respectively. What is its efficiency?
12
The turbine in a steam power plant takes steam from a boiler at 427°C and exhausts into a low temperature reservoir at 77°C. What is the maximum possible efficiency?
13
Efficiency of a Carnot engine depends on
14
A Carnot engine works between temperatures 727°C and 27°C. The efficiency of the engine is
15
A Carnot engine, with its cold body at 17°C, has 50% efficiency. If the temperature of its hot body is now increased by 145°C, the efficiency becomes
16
An ideal Carnot engine operates between 327°C and 27°C. It absorbs 80 kcal of heat from the source. The work done by the engine is
17
Even Carnot engine cannot give 100% efficiency because we cannot
18
If temperature of the sink is decreased, efficiency of a Carnot engine:
19
An ideal heat engine exhausting heat at 27°C is to have 25% efficiency. It must take heat at
20
A reversible engine working between the temperature limits of 600 K and 1200 K receives 50 KJ of heat. The work done by the engine will be