Aerospace Engineering
2017 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE AE 2017 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 37–39 of 65. Imported answers require review unless explicitly marked reviewed.
Question 37
Open questionAENAT2 marksNeeds review
A football, meant to be thrown at 100 km/h in sea level air (
kg/m
,
N-s/m
), is to be tested using a one-quarter scale model in a water tunnel (
kg/m
,
N-s/m
). For dynamic similarity the ratio of the model force to the prototype force is ____________ (round to nearest integer).Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 38
Open questionAENAT2 marksNeeds review
An aircraft model was tested in a low speed wind-tunnel (Reynolds number =
based on wing mean chord). The variation of pitching moment coefficient (
) with angle of attack (
) for two elevator deflections (
) as recorded during this test is presented below.
Based on the result presented in the figure above, the value of elevator control power (
) in per radian will be ___________ (in three decimal place).Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 39
Open questionAEMCQ2 marksNeeds review
A pilot was flying a single engine propeller aircraft and maintaining a steady level flight at a lift coefficient,
at an altitude of 500 m. Due to some emergency, at the same altitude (500 m), the pilot had to fully deploy the landing gear. If the pilot wants to maintain steady level flight at the same
and at the same altitude, which of the following control actions should the pilot undertake:Your answerChoose one option.
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