GATE AE 2018 Paper 1 — page 17

Questions 49–51 of 65. Imported answers require review unless explicitly marked reviewed.

Consider a cubical tank of side 2 m with its top open. It is filled with water up to a height of 1 m. Assuming the density of water to be 1000 kg/m

, g as 9.81 m/s

and the atmospheric pressure to be 100 kPa, the net hydrostatic force (in kN) on the side face of the tank due to the air and water is _____ (accurate to two decimal places).

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An aircraft with mass of 400,000 kg cruises at 240 m/s at an altitude of 10 km. Its lift to drag ratio at cruise is 15. Assuming g as 9.81 m/s

, the power (in MW) needed for it to cruise is ______ (accurate to two decimal places).

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A statically-stable aircraft has a

(where the angle of attack,

, is measured in radians). The coefficient of moment of the aircraft about the center of gravity is given as

. The mean aerodynamic chord of the aircraft is 1 m. The location (positive towards the nose) of the neutral point of the aircraft from the center of gravity is _____ (in m, accurate to two decimal places).

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2018 · Paper 1

Question 39

Question 40

Question 41