Applied Mechanics and Design [GATE (Graduate Aptitude Test in Engineering) Mechanical Engineering]: Questions 1 - 4 of 15

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Question 1

Applied Mechanics and Design
Elastic Constants
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Short Answer▾

The pressure of water increased from 0.002 Pa to 0.013 Pa. If the volume of water decreased by 0.22%, calculate the Bulk modulus of elasticity.

Question 2

Applied Mechanics and Design
Rigid Bodies in Plane Motion Including Impulse and Momentum
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Appeared in Year: 2015

Question

MCQ▾

Consider a slider crank mechanism with nonzero masses and inertia. A constant torque τis applied on the crank as shown in the figure. Which of the following plots best resembles variation of crank angle, versus time?

Choices

Choice (4)Response
a.
Velocity and Acceleration - B
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b.
Velocity and Acceleration - A
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c.
Velocity and Acceleration - C
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d.
Velocity and Acceleration - D
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Question 3

Applied Mechanics and Design
Free and Forced Vibrations of Single Degree of Freedom Systems
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Appeared in Year: 2015

Question

MCQ▾

A mobile phone has a small motor with an eccentric mass used for vibrator mode. The location of the eccentric mass on motor with respect to center of gravity (CG) of the mobile and the rest of the dimensions of the mobile phone are shown. The mobile is kept on a flat horizontal surface.

Flat Horizontal

Flat Horizontal

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Given in addition that the , , , . Uniform speed of the motor in RPM for which the mobile will get just lifted off the ground at the end Q is approximately

Choices

Choice (4)Response
a.4000
b.3000
c.3500
d.4500

Question 4

Applied Mechanics and Design
Gear Trains and Flywheels
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Appeared in Year: 2015

Question

MCQ▾

A pinion with radius , and inertia is driving a gear with radius and inertia . Torque is applied on pinion. The following are free body diagrams of pinion and gear showing important forces of interaction. Which of the following relations hold true?

Angular Displacement

Angular Displacement

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Choices

Choice (4)Response
a.
b.
c.
d.