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Engineering Mechanics

Engineering Mechanics
Static friction is always __________ dynamic friction.

None of these
Equal to
Greater than
Less than

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Engineering Mechanics
If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is

90°
30°
60°
120°

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Engineering Mechanics
The velocity of a particle (v) moving with simple harmonic motion, at any instant is given by (where, r = Amplitude of motion, and y = Displacement of the particle from mean position.)

ω.√(y² - r²)
ω².√(r² - y²)
ω.√(r² - y²)
ω².√(y² - r²)

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Engineering Mechanics
The velocity of a particle moving with simple harmonic motion is _________ at the mean position.

Zero
None of these
Minimum
Maximum

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Engineering Mechanics
The algebraic sum of moments of the forces forming couple about any point in their plane is

Constant
Both of above are correct
Both of above are wrong
Equal to the moment of the couple

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Engineering Mechanics
The mechanical advantage of a lifting machine is the ratio of

Load lifted to the effort applied
Distance moved by effort to the distance moved by load
All of these
Output to the input

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MORE MCQ ON Engineering Mechanics

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