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Engineering Mechanics

Engineering Mechanics
A redundant frame is also called __________ frame.

None of these
Perfect
Imperfect
Deficient

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Engineering Mechanics
Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its vertex and parallel to the base, is __________ than that passing through its C.G. and parallel to the base.

Nine times
Four times
Two times
Six times

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Engineering Mechanics
According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through center of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.)

IP = IG / Ah2
IP = IG - Ah2
IP = Ah2 / IG
IP = IG + Ah2

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Engineering Mechanics
The maximum velocity of a particle moving with simple harmonic motion is

ωr
ω/r
ω
ω2r

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Engineering Mechanics
The velocity ratio of a simple wheel and axle with D and d as the diameters of effort wheel and load axle, is

D + d
D × d
D - d
D / d

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Engineering Mechanics
The time of flight of a projectile on downward inclined plane depends upon

Angle of inclination of the plane
Both (A) and (B)
Angle of projection
None of these

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