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Engineering Mechanics

Engineering Mechanics
A framed structure is imperfect, if the numbers of members are __________ (2j - 3).

Greater than
Equal to
Less than
Either (B) or (C)

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Engineering Mechanics
Moment of inertia of a rectangular section having width (b) and depth (d) about an axis passing through its C.G. and parallel to the depth (d), is

db³/36
bd³/12
bd³/36
db³/12

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Engineering Mechanics
The law of the machine is (where P = Effort applied to lift the load, m = A constant which is equal to the slope of the line, W = Load lifted, and C = Another constant which represents the machine friction.)

P = mW + C
P = mW - C
P = m/W + C
P = C - mW

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Engineering Mechanics
The three forces of 100 N, 200 N and 300 N have their lines of action parallel to each other but act in the opposite directions. These forces are known as

Coplanar concurrent forces
Like parallel forces
Unlike parallel forces
Coplanar non-concurrent forces

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

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Engineering Mechanics
One joule is equal to

0.1 N-m
10 N-m
1 N-m
100 N-m

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MORE MCQ ON Engineering Mechanics

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