GATE AE 2023 Paper 1 — page 9

Questions 25–27 of 65. Imported answers require review unless explicitly marked reviewed.

Which of the following statement(s) is/are true about harmonically excited forced vibration of a single degree-of-freedom linear spring-mass-damper system?

Your answerSelect all correct options. You can choose more than one.

The total response of the mass is a combination of free vibration transient and steady-state response.

The free vibration transient dies out with time for each of the three possible conditions of damping (under-damped, critically damped, and over-damped).

The steady-state periodic response is dependent on the initial conditions at the time of application of external forcing.

The rate of decay of free vibration transient response depends on the mass, spring stiffness and damping constant.

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Which of the following statement(s) is/are true about the state of stress in a plane?

Your answerSelect all correct options. You can choose more than one.

Maximum or major principal stress is algebraically the largest direct stress at a point.

The magnitude of minor principal stress cannot be greater than the magnitude of major principal stress.

The planes of maximum shear stress are inclined at 90 degrees to the principal axes.

The normal stresses along the planes of maximum shear stress are equal.

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Which of the following statement(s) is/are true about the ribs of an airplane wing with semi-monocoque construction?

Your answerSelect all correct options. You can choose more than one.

For a rectangular planform wing, the dimensions of the ribs DO NOT depend on their spanwise position in the wing.

Ribs increase the column buckling stress of longitudinal stiffeners connected to them.

Ribs increase plate buckling stress of the skin panels.

Ribs help in maintaining aerodynamic shape of the wing.

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2023 · Paper 1

Question 25

Question 26

Question 27