GATE ME 2025 | Second Law of Thermodynamics Question 2 | Thermodynamics

The thermal efficiency of an ideal air-standard Otto cycle is 0.5 . The value of specific heat ratio of air is 1.4. The compression ratio of the cycle is _________ (rounded off to 1 decimal place).

Your input ____

GATE ME 2024

MCQ (Single Correct Answer)

-0.33

A furnace can supply heat steadily at 1200 K at a rate of 24000 kJ/min. The maximum amount of power (in kW) that can be produced by using the heat supplied by this furnace in an environment at 300 K is

300

150

18000

GATE ME 2023

MCQ (Single Correct Answer)

-0.33

A heat engine extracts heat (𝑄_H) from a thermal reservoir at a temperature of 1000 K and rejects heat (𝑄_L) to a thermal reservoir at a temperature of 100 K, while producing work (𝑊). Which one of the combinations of [𝑄_H, 𝑄_L and 𝑊] given is allowed?

𝑄_H = 2000 J, 𝑄_L = 500 J, 𝑊 = 1000 J

𝑄_H = 2000 J, 𝑄_L = 750 J, 𝑊 = 1250 J

𝑄_H = 6000 J, 𝑄_L = 500 J, 𝑊 = 5500 J

𝑄_H = 6000 J, 𝑄_L = 600 J, 𝑊 = 5500 J

GATE ME 2022 Set 1

MCQ (Single Correct Answer)

-0.33

The Clausius inequality holds good for

any process

any cycle

only reversible process

only reversible cycle

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Questions Asked from Marks 1

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GATE ME Subjects

Engineering Mechanics

Machine Design

Strength of Materials

Heat Transfer

Production Engineering

Industrial Engineering

Turbo Machinery

Theory of Machines

Engineering Mathematics

Fluid Mechanics

Thermodynamics

General Aptitude