Complete GATE AE 2020 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 31–33 of 65. Imported answers require review unless explicitly marked reviewed.

Paper practice 65 questionsPage 11 of 22

Question 21

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AENAT1 markNeeds review
Velocity of an airplane in the body fixed axes is given as [100 -10 20] m/s. The sideslip angle is ______ degrees (round off to two decimal places).

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Question 22

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AENAT1 markNeeds review
The similarity solution for the diffusion equation,

is

, where similarity variable,

. If

, the ratio

______ (round off to one decimal place).

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Question 23

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AENAT1 markNeeds review
Air enters the rotor of an axial compressor stage with no pre-whirl (

) and exits the rotor with whirl velocity,

m/s. The velocity of rotor vanes,

is 200 m/s. Assuming

J/(kg K), the stagnation temperature rise across the rotor is ______ K (round off to one decimal place).

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