Aerospace Engineering
2018 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE AE 2018 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 43–45 of 65. Imported answers require review unless explicitly marked reviewed.
Question 33
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An aircraft with a turboprop engine produces a thrust of 500 N and flies at 100 m/s. If the propeller efficiency is 0.5, the shaft power produced by the engine is
Your answerChoose one option.
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An axial compressor that generates a station pressure ratio of 4.0, operates with inlet and exit station temperatures of 300 K and 480 K, respectively. If the ratio of specific heats (
) is 1.4, the isentropic efficiency of the compressor isYour answerChoose one option.
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A rocket has an initial mass of 150 kg. After operating for a duration of 10 s, its final mass is 50 kg. If the acceleration due to gravity is 9.81 m/s
and the thrust produced by the rocket is 19.62 kN, the specific impulse of the rocket isYour answerChoose one option.
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