A block of mass 20 kg lying on a rough horizontal plane is connected by a light string passing over a smooth pulley to another mass 5 kg, which can move freely in the Vertical direction, as shown in the below figure. The tension in the string will ___________ with the increase in coefficient of friction.

Engineering Mechanics
A block of mass 20 kg lying on a rough horizontal plane is connected by a light string passing over a smooth pulley to another mass 5 kg, which can move freely in the Vertical direction, as shown in the below figure. The tension in the string will ___________ with the increase in coefficient of friction.

Decrease

Increase

None of these

Not be effected

Decrease

Increase

None of these

Not be effected

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Engineering Mechanics
Moment of inertia of a circular section about an axis perpendicular to the section is

πd4/64

πd3/32

πd4/32

πd3/16

πd4/64

πd3/32

πd4/32

πd3/16

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Engineering Mechanics
An ideal machine is one whose efficiency is

Between 80 and 90%

Between 70 and 80%

Between 60 and 70 %

1

Between 80 and 90%

Between 70 and 80%

Between 60 and 70 %

1

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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

Their algebraic sum is zero

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

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

Their lines of action are at equal distances

Their algebraic sum is zero

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

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

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Engineering Mechanics
The power developed by a body acted upon by a torque 'T' Newton meter (N - m) and revolving at ω radian/s is given by

T.ω/75 (in kilowatts)

T.ω/4500 (in kilowatts)

T.ω (in watts)

T.ω/60 (in watts)

T.ω/75 (in kilowatts)

T.ω/4500 (in kilowatts)

T.ω (in watts)

T.ω/60 (in watts)

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

Zero

Maximum

None of these

Minimum

Zero

Maximum

None of these

Minimum

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Engineering Mechanics

Engineering Mechanics Moment of inertia of a circular section about an axis perpendicular to the section is

Engineering Mechanics An ideal machine is one whose efficiency is

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 The power developed by a body acted upon by a torque 'T' Newton meter (N - m) and revolving at ω radian/s is given by

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

Engineering Mechanics
Moment of inertia of a circular section about an axis perpendicular to the section is

Engineering Mechanics
An ideal machine is one whose efficiency is

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
The power developed by a body acted upon by a torque 'T' Newton meter (N - m) and revolving at ω radian/s is given by

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