GATE AE year:2019 PYQs & Answers — Page 3

Questions 21–30 of 65. Imported answers require independent review unless marked reviewed.

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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To simulate the aerodynamic forces on a cylinder of 1 m diameter due to a uniform air flow of 1 m/s at standard temperature and pressure (STP), low-speed wind tunnel experiments at STP are conducted on a 0.1 m diameter cylinder. The free stream air speed in the wind tunnel experiments should be ______ m/s (round off to the nearest integer).

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The power-off glide range for an airplane with a maximum Lift to Drag ratio of 18, when the glide starts at an altitude of 4 km, is ______ km (round off to the nearest integer).

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For an airplane flying in a vertical plane, the angle of attack is 3°, the horizontal and vertical components of velocity in wind axis are 300 km/h and 15.72 km/h, respectively. The pitch attitude of the airplane is ______ degrees (round off to 2 decimal places).

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An airplane is in steady level flight with a true air speed of 50 m/s. The ambient air density and ambient pressure at the flight altitude are 0.91 kg/m

and

N/m

, respectively. At sea level, air density is 1.225 kg/m

and ambient pressure is

N/m

. The equivalent or indicated air speed of the airplane is ______ m/s (round off to 2 decimal places).

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For the complete combustion of 1 mole of ethanol (C

OH), the required number of moles of oxygen is ______.

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GATE AE year:2019 PYQs

Question 11

Question 12

Question 13

Question 14

Question 15

Question 16

Question 17

Question 18

Question 19

Question 20