A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is (where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)

Engineering Mechanics
A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is (where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)

MS/5

None of these

MS/4

MS/3

MS/5

None of these

MS/4

MS/3

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Engineering Mechanics
A machine having an efficiency less than 50%, is known as

Reversible machine

Ideal machine

Neither reversible nor non-reversible machine

Non-reversible machine

Reversible machine

Ideal machine

Neither reversible nor non-reversible machine

Non-reversible machine

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Engineering Mechanics
The coefficient of friction depends upon

Nature of surfaces

Shape of the surfaces

Area of contact

All of these

Nature of surfaces

Shape of the surfaces

Area of contact

All of these

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Engineering Mechanics
Varingon's theorem of moments states that if a number of coplanar forces acting on a particle are in equilibrium, then

Their lines of action are at equal distances

The algebraic sum of their moments about any point in their plane is zero

The algebraic sum of their moments about any point is equal to the moment of their resultant force about the same point

Their algebraic sum is zero

Their lines of action are at equal distances

The algebraic sum of their moments about any point in their plane is zero

The algebraic sum of their moments about any point is equal to the moment of their resultant force about the same point

Their algebraic sum is zero

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Engineering Mechanics
Moment of inertia of a triangular section of base (b) and height (h) about an axis through its base, is

bh3/8

bh3/4

bh3/36

bh3/12

bh3/8

bh3/4

bh3/36

bh3/12

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Engineering Mechanics
The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, α = Angle of projection, and β = Inclination of the plane with the horizontal.)

t = 2u sin (α - β)/g cos β

t = g cos β/2u sin (α - β)

t = g cos β/2u sin (α + β)

t = 2u sin (α + β)/g cos β

t = 2u sin (α - β)/g cos β

t = g cos β/2u sin (α - β)

t = g cos β/2u sin (α + β)

t = 2u sin (α + β)/g cos β

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Engineering Mechanics

Engineering Mechanics A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is (where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)

Engineering Mechanics A machine having an efficiency less than 50%, is known as

Engineering Mechanics The coefficient of friction depends upon

Engineering Mechanics Varingon's theorem of moments states that if a number of coplanar forces acting on a particle are in equilibrium, then

Engineering Mechanics Moment of inertia of a triangular section of base (b) and height (h) about an axis through its base, is

Engineering Mechanics The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, α = Angle of projection, and β = Inclination of the plane with the horizontal.)

Engineering Mechanics
A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is (where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)

Engineering Mechanics
A machine having an efficiency less than 50%, is known as

Engineering Mechanics
The coefficient of friction depends upon

Engineering Mechanics
Varingon's theorem of moments states that if a number of coplanar forces acting on a particle are in equilibrium, then

Engineering Mechanics
Moment of inertia of a triangular section of base (b) and height (h) about an axis through its base, is

Engineering Mechanics
The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, α = Angle of projection, and β = Inclination of the plane with the horizontal.)