GATE AE topic:aerodynamics PYQs & Answers — Page 48

Questions 471–480 of 650. Imported answers require independent review unless marked reviewed.

For a quasi-one-dimensional isentropic supersonic flow through a diverging duct, which of the following is true in the direction of the flow?

Your answerChoose one option.

Both the Mach number and the static temperature increase.

The Mach number increases and the static temperature decreases.

The Mach number decreases and the static temperature increases.

Both the Mach number and the static temperature decrease.

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For a NACA2415 airfoil of chord length

, which of the following is true?

Your answerChoose one option.

Maximum camber is located at

from the leading edge.

Maximum thickness is located at

from the leading edge.

Maximum camber is

Maximum thickness is

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When a propeller airplane in ground-roll during take-off experiences headwind, which of the following statements is FALSE?

Your answerChoose one option.

The drag on the airplane increases.

The thrust from the propellers decreases.

The wing lift increases.

The ground-roll distance increases.

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Which of the following graphs represents the response of a dynamically unstable airplane?

Your answerChoose one option.

Diagram for Aerospace Engineering question 9

Diagram for Aerospace Engineering question 9 (figure 2)

Diagram for Aerospace Engineering question 9 (figure 3)

Diagram for Aerospace Engineering question 9 (figure 4)

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The propulsive efficiency of a ramjet engine is lower than that of a low bypass turbofan engine operating under the same conditions and producing the same thrust, primarily because the ramjet engine

Your answerChoose one option.

has larger kinetic energy lost in the exhaust jet.

has lower thrust power.

is not self-starting.

has higher thrust to weight ratio.

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While flying at Mach 2.0, 11 km altitude and producing the same thrust, what is the correct order from the lowest thrust specific fuel consumption (

) to the highest

Your answerChoose one option.

Turbofan, Ramjet, Turbojet

Turbofan, Turbojet, Ramjet

Ramjet, Turbojet, Turbofan

Turbojet, Turbofan, Ramjet

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For a single stage subsonic compressor, which of the following statements about the highest possible compressor pressure ratio (CPR) is correct?

Your answerChoose one option.

CPR of an axial compressor > CPR of centrifugal compressor.

CPR of an axial compressor < CPR of centrifugal compressor.

CPR of an axial compressor = CPR of centrifugal compressor.

CPR of any value can be attained with either an axial or a centrifugal compressor.

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For a beam subjected to a transverse shear load through its shear center,

Your answerChoose one option.

the twist per unit length is zero.

the shear stress is uniform throughout the cross-section.

the bending stresses in the cross section are zero.

the shear strain is zero at the shear center.

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A function

is defined by

. The value of

is ______ (round off to 1 decimal place).

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The value of the following limit is ______ (round off to 2 decimal places).

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GATE AE topic:aerodynamics PYQs

Question 6

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Question 9

Question 10

Question 11

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Question 13

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Question 15