GATE AE purpose:exam-prep PYQs & Answers — Page 61

Questions 601–610 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 61 of 65

Among the following engines, which one is expected to have the maximum Specific Impulse?

Your answerChoose one option.

Cryogenic Rocket

Solid Propellant Rocket

Liquid Propellant Rocket

SCRAM Jet

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The maximum gas flow rate that can be handled by a multistage axial compressor at a given rotational speed is dictated by

Your answerChoose one option.

Compressor Surge

Rotating Stall

Choking

Optimum Design Pressure Ratio

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For a turbine stage, which one of the following losses occurs due to the turning of the wall boundary layer through an angle due to curved surface?

Your answerChoose one option.

Profile loss

Annulus loss

Tip clearance loss

Secondary flow loss

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In the vane-less space between the impeller and the diffuser vanes in a Centrifugal Compressor, the angular momentum varies in the following manner in the radial direction

Your answerChoose one option.

Increases

Remains constant

Decreases

First increases and then decreases

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Which of the following statements about the neutral axis of a beam with unsymmetrical cross section is true:

Your answerChoose one option.

The product of second moment of area about the neutral axis is always zero.

The normal stress along the neutral axis is always zero.

The shear stress along the neutral axis is always zero.

The product of second moment of area about the neutral axis and the normal stress about the neutral axis are always zero.

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Assuming that the aircraft is flying straight, the top spar cap / flange of a wing is most likely to fail in:

Diagram for Aerospace Engineering question 21

Your answerChoose one option.

Yielding

Buckling

Crushing

Creep

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A 2-DOF undamped spring-mass system with two masses and two springs has natural frequencies

rad/s and

rad/s. The mode shapes for the system are given by

and

. If the first mass is displaced by 1 cm, the minimum displacement in cm to be given to the second mass to make the system vibrate in first mode alone is __________ (in three decimal place).

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An aircraft landing gear can be idealized as a single degree of freedom spring-mass-damper system. The desirable damping characteristics of such a system is:

Your answerChoose one option.

Under damped

Over damped

Critically damped

Undamped

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A single degree of freedom spring-mass system of natural frequency 5 Hz is modified in the following manners: Case 1: Viscous damping with damping ratio

is introduced in parallel to the spring. Case 2: The original undamped spring-mass system is moved to a surface with coefficient of friction,

. The ratio of the damped natural frequency for the cases 1 and 2 is given by __________ (in three decimal places).

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Which of the following statements about the compatibility equations are true: P. Strain compatibility equations must be satisfied in the solution of three-dimensional problems in elasticity. Q. Six strains are defined in terms of three displacement functions and can have arbitrary values. R. Compatibility equations are an expression of the continuity of displacements.

Your answerChoose one option.

P and Q

Q and R

P and R

P, Q and R

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GATE AE purpose:exam-prep PYQs

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