Which of the following statements is accurate?

Compressors, Gas Turbines and Jet Engines MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

Compressors, Gas Turbines and Jet Engines

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Subject
Compressors, Gas Turbines and Jet Enginesmechanical-engineering-mcqs › compressors-gas-turbines-and-jet-engines
Published
24 Jan 2019
Last updated
28 May 2026

Browse all Compressors, Gas Turbines and Jet Engines MCQs

Choose the correct answer

Explanation

Option A is incorrect because a closed cycle gas turbine is not an internal combustion engine. Option B is false since gas turbines generally use fresh air and fuel rather than recycling the same fluid. Option C is inaccurate as the air-fuel ratio varies and is not fixed at 100:1. Option D is wrong because the ideal efficiency of a closed cycle gas turbine cannot surpass the Carnot cycle efficiency. Option E is correct: the thrust in a turbojet engine is produced by the high-speed gases expelled through the nozzle.

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