GATE AE topic:aerodynamics PYQs & Answers — Page 16

Questions 151–160 of 650. Imported answers require independent review unless marked reviewed.

In the context of steady, inviscid, incompressible flows, consider the superposition of a uniform flow with speed U along the positive x-axis (from left to right), and a source of strength Λ located at the origin. Which one of the following statements is NOT true regarding the location of the station point of the resulting flow?

Your answerChoose one option.

It is located to the left of the origin

It moves closer to the origin for increasing Λ, while U is held constant

It moves closer to the origin for increasing U, while Λ is held constant

It is located along the x-axis

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On Day 1, an aircraft flies with a speed of V₁ m/s at an altitude where the temperature is T₁ K. On Day 2, the same aircraft flies with a speed √1.2 V₁ m/s at an altitude where the temperature is 1.2 T₁ K. How does the Mach number M₂ on Day 2 compare with the Mach number M₁ on Day 1?

Assume ideal gas behavior for air. Also assume the ratio of specific heats and molecular weight of air to be the same on both the days.

Your answerChoose one option.

M₂ = 0.6 M₁

M₂ = M₁

M₂ =

M₁

M₂ = √1.2 M₁

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Consider a steady, isentropic, supersonic flow (Mach number M > 1) entering a Convergent-Divergent (CD) duct as shown in the figure. Which one of the following options correctly describes the flow at the throat?

Diagram for Aerospace Engineering question 23

Your answerChoose one option.

Can only be supersonic

Can only be sonic

Can either be sonic or supersonic

Can only be subsonic

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Consider steady, incompressible, inviscid flow past two airfoils shown in the figure. The coefficient of pressure at the trailing edge of the airfoil with finite angle, shown in figure (I), is

, while that at the trailing edge of the airfoil with cusp, shown in figure (II), is

. Which one of the following options is TRUE?

Diagram for Aerospace Engineering question 24

Your answerChoose one option.

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Which of the following options is/are correct?

Your answerSelect all correct options. You can choose more than one.

The stress-strain graph for a nonlinear elastic material is as shown in the figure

Diagram for Aerospace Engineering question 25

Material properties are independent of position in a homogeneous material

An isotropic material has infinitely many planes of material symmetry

The stress-strain graph for a linear elastic material is

Diagram for Aerospace Engineering question 25 (figure 2)

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Which of the following statements is/are correct about a satellite moving in a geostationary orbit?

Your answerSelect all correct options. You can choose more than one.

The orbit lies in the equatorial plane

The orbit is circular about the center of the Earth

The time period of motion is 90 minutes

The satellite is visible from all parts of the Earth

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In a conventional configuration airplane, the rudder can be used:

Your answerSelect all correct options. You can choose more than one.

to overcome adverse yaw during a turning maneuver

to overcome yawing moment due to failure of one engine in a multi engine airplane

for landing the airplane in crosswind conditions

for enhancing longitudinal stability

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Which of the following statements about a general aviation aircraft, while operating at point Q in the V-n diagram, is/are true?

Diagram for Aerospace Engineering question 28

Your answerSelect all correct options. You can choose more than one.

The aircraft has the highest turn rate

The aircraft has the smallest turn radius

The aircraft is flying with minimum drag

The aircraft is operating at

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Two fair dice with numbered faces are rolled together. The faces are numbered from 1 to 6. The probability of getting odd numbers on both the dice is ________ (rounded off to 2 decimal places).

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A particle acted upon by a constant force

N is displaced from point A with position vector

m to point B with position vector

m. The work done by this force is ______ J (answer in integer).

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GATE AE topic:aerodynamics PYQs

Question 21

Question 22

Question 23

Question 24

Question 25

Question 26

Question 27

Question 28

Question 29

Question 30