Aerospace Engineering
GATE AE concept:specific-impulse PYQs
Build your understanding with focused practice from past exam papers.
Questions 11–13 of 13. Imported answers require independent review unless marked reviewed.
Question 35
Open questionAEMCQ2 marksNeeds review
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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Among the following engines, which one is expected to have the maximum Specific Impulse?
Your answerChoose one option.
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Open questionAENAT2 marksNeeds review
A single stage chemical rocket, having an initial mass of 10,000 kg and specific impulse of 450 s, is launched from the surface of the earth and has to reach the escape velocity (11 km/s) at burn out. Consider
m/s². If the atmospheric drag and the effect of gravity are to be neglected, the mass of propellant to be carried by the rocket is equal to ________ kg (in one decimal place).Log in to check the answer
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