GATE AE purpose:exam-prep PYQs & Answers — Page 56

Questions 551–560 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 56 of 65

The theoretical maximum velocity (in m/s) of air expanding from a reservoir at 700 K is ________ (accurate to two decimal places). Specific heat of air at constant pressure is 1005 J/(kg-K).

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For a damped single degree of freedom system with damping ratio of 0.1, ratio of two successive peak amplitudes of free vibration is ________ (accurate to two decimal places).

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The natural frequency (in rad/s) of the spring-mass system shown in the figure below is ____ (accurate to one decimal place).

Diagram for Aerospace Engineering question 23

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The stagnation pressures at the inlet and exit of a subsonic intake are 100 kPa and 98 kPa, respectively. The pressure recovery of this intake will be ______ (accurate to two decimal places).

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A combustor is operating with a fuel-air ratio of 0.03. If the stoichiometric fuel-air ratio of the fuel used is 0.06, the equivalence ratio of the combustor will be ______ (accurate to two decimal places).

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The solution of the differential equation

, given that

and

Your answerChoose one option.

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The relation between pressure (p) and velocity (V) for a steady, isentropic flow at two points along a streamline is, (c is a constant)

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A thin airfoil is mounted in a low-speed, subsonic wind tunnel, in which the Mach number is 0.1. At a point on the airfoil, the pressure coefficient is measured to be −1.2. If the flow velocity is increased such that the free-stream Mach number is 0.6, the pressure coefficient at the same point on the airfoil will approximately be:

Your answerChoose one option.

−3.5

−2.9

−1.5

−0.75

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A solid circular shaft of diameter d is under pure torsion of magnitude T. The maximum tensile stress experienced at any point on the shaft is

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A clamped-clamped beam, subjected to a point load P at the midspan, is shown in the figure below. The magnitude of the moment reaction at the two fixed ends of the beam is

Diagram for Aerospace Engineering question 30

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GATE AE purpose:exam-prep PYQs

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Question 30