GATE AE topic:aerodynamics PYQs & Answers — Page 10

Questions 91–100 of 650. Imported answers require independent review unless marked reviewed.

For a homogeneous, isotropic material, the relation between the shear modulus (

), Young’s modulus (

), and Poisson’s ratio (

) is ____.

Your answerChoose one option.

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A simply supported horizontal beam is subjected to a distributed transverse load varying linearly from

at A to zero at B, as shown in the figure. Which one of the following options is correct?

Diagram for Aerospace Engineering question 27

Your answerChoose one option.

The magnitude of the vertical reaction force at A is larger than that at B.

The magnitude of the vertical reaction force at B is larger than that at A.

The magnitudes of the vertical reaction forces at A and B are equal.

The reactions at points A and B are indeterminate.

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A stress field is given by

;

, where

and

are non-zero constants. If the stress field satisfies equilibrium, which one of the following options is correct?

Your answerChoose one option.

There is no body force per unit volume.

There is a constant body force per unit volume in the y-direction.

The body force per unit volume varies linearly in the y-direction.

The direction of the body force per unit volume depends on the value of

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A uniform symmetric cross-section cantilever beam of length

is subjected to a transverse force

at the free end, as shown in the figure. The Young’s modulus of the material is

and the moment of inertia is

. Ignoring the contributions due to transverse shear, the strain energy stored in the beam is ____.

Diagram for Aerospace Engineering question 29

Your answerChoose one option.

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In the given figure, plate ABCD in its undeformed configuration (solid line) is a rhombus with all the internal angles being 90°. The lengths of the undeformed diagonals are 20 cm. ABCD deforms as shown by the dotted lines. Upon deformation, diagonal AC reduces to 19.96 cm and BD increases to 20.04 cm. In the given x-y coordinate system, the engineering shear strain

is equal to ____.

Diagram for Aerospace Engineering question 30

Your answerChoose one option.

0.002

0.004

-0.004

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and

are the heat and work interactions of a system with its surroundings, and

is the change in the internal energy of the system. For an adiabatic process in a closed, constant pressure combustor, which one of the following options is correct?

Your answerChoose one option.

and

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An ideal two-stage rocket has identical specific impulse and structural coefficient for its two stages. For an optimized rocket, the two stages have identical payload ratio as well. The payload is 2 tons and the initial mass of the rocket is 200 tons. The mass of the second stage of the rocket (including the final payload mass) is ____ tons.

Your answerChoose one option.

100

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A gaseous fuel mixture comprising 3 moles of methane and 2 moles of ammonia is combusted in X moles of pure oxygen in stoichiometric amount. Assuming complete combustion, with only CO

, H

O and N

in the product gases, the value of X is ____. The displayed reaction is: 3 CH

+ 2 NH

+ X O

→ Products (CO

, H

O, N

Your answerChoose one option.

7.5

5.5

8.5

9.5

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The lift per unit span for a spinning circular cylinder in a potential flow is 6 N/m. The free-stream velocity is 30 m/s, and the density of air is 1.225 kg/m

. The circulation around the cylinder is ____ m

/s (rounded off to two decimal places).

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In a centrifugal compressor, the eye tip diameter is 10 cm. For a shaft rotational speed of 490 rotations per second, the tangential speed at the inducer tip is ____ m/s (rounded off to one decimal place).

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GATE AE topic:aerodynamics PYQs

Question 26

Question 27

Question 28

Question 29

Question 30

Question 31

Question 32

Question 33

Question 34

Question 35