GATE AE exam:gate PYQs & Answers — Page 20

Questions 191–200 of 650. Imported answers require independent review unless marked reviewed.

For an aircraft moving at 4 km altitude above mean sea level at a Mach number of 0.2, the ratio of equivalent air speed to true air speed is ________ (rounded off to 2 decimal places).

The density of air at mean sea level is 1.225 kg/m

and at 4 km altitude is 0.819 kg/m

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For a general aviation airplane, one of the complex conjugate pair of eigenvalues for longitudinal dynamics is given by

(in SI units). If the system is disturbed to excite only this mode, the time taken for the amplitude of response to become half in magnitude is ________ s (rounded off to 1 decimal place).

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The figure (not to scale) shows a control volume to estimate the forces on the airfoil with elliptic cross-section. Surfaces 2 and 3 are streamlines. Velocity profiles are measured at the upstream end (surface 1) and at the downstream end (surface 4) of the control volume. The drag coefficient for the airfoil is defined as

, where D is the drag force on the airfoil per unit span and

is the density of the air. The static pressure,

, is constant over the entire surface of the control volume. Assuming the flow to be incompressible, two-dimensional and steady, the

for the airfoil is ________ (rounded off to 3 decimal places).

Diagram for Aerospace Engineering question 63

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An airplane of mass 1000 kg is in a steady level flight with a speed of 50 m/s. The wing has an elliptic planform with a span of 20 m and planform area 31.4 m

. Assuming the density of air at the altitude to be 1 kg/m

and acceleration due to gravity to be 10 m/s

, the induced drag on the wing is ________ N (rounded off to 1 decimal place).

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It is desired to estimate the aerodynamic drag, D, on a car travelling at a speed of 30 m/s. A one-third scale model of the car is tested in a wind-tunnel following the principles of dynamic similarity. The drag on the scaled model is measured to be

. The ratio

is ________ (rounded off to 1 decimal place).

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“You are delaying the completion of the task. Send ______ contributions at the earliest.”

Your answerChoose one option.

you are

your

you’re

yore

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References : ______ : : Guidelines : Implement (By word meaning)

Your answerChoose one option.

Sight

Site

Cite

Plagiarise

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In the given figure, PQRS is a parallelogram with PS = 7 cm, PT = 4 cm and PV = 5 cm. What is the length of RS in cm? (The diagram is representative.)

Diagram for Aerospace Engineering question 3

Your answerChoose one option.

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In 2022, June Huh was awarded the Fields medal, which is the highest prize in Mathematics.

When he was younger, he was also a poet. He did not win any medals in the International Mathematics Olympiad. He dropped out of college.

Based only on the above information, which one of the following statements can be logically inferred with certainty?

Your answerChoose one option.

Every Fields medalist has won a medal in an International Mathematics Olympiad.

Everyone who has dropped out of college has won the Fields medal.

All Fields medalists are part-time poets.

Some Fields medalists have dropped out of college.

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A line of symmetry is defined as a line that divides a figure into two parts in a way such that each part is a mirror image of the other part about that line.

The given figure consists of 16 unit squares arranged as shown. In addition to the three black squares, what is the minimum number of squares that must be colored black, such that both PQ and MN form lines of symmetry? (The figure is representative)

Diagram for Aerospace Engineering question 5

Your answerChoose one option.

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GATE AE exam:gate PYQs

Question 61

Question 62

Question 63

Question 64

Question 65

Question 1

Question 2

Question 3

Question 4

Question 5