If rain is falling in the opposite direction of the movement of a pedestrian, he has to hold his umbrella

Engineering Mechanics
If rain is falling in the opposite direction of the movement of a pedestrian, he has to hold his umbrella

More inclined when standing

Less inclined when standing

More inclined when moving

Less inclined when moving

More inclined when standing

Less inclined when standing

More inclined when moving

Less inclined when moving

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Engineering Mechanics
The friction experienced by a body, when at rest, is known as

Dynamic friction

Static friction

Limiting friction

Coefficient of friction

Dynamic friction

Static friction

Limiting friction

Coefficient of friction

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Engineering Mechanics
On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be

Perpendicular to the wall at its upper end

Upwards at its upper end

Downwards at its upper end

Zero at its upper end

Perpendicular to the wall at its upper end

Upwards at its upper end

Downwards at its upper end

Zero at its upper end

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Engineering Mechanics
Two like parallel forces are acting at a distance of 24 mm apart and their resultant is 20 N. It the line of action of the resultant is 6 mm from any given force, the two forces are

20 N and 5 N

15 N and 15 N

15 N and 5 N

None of these

20 N and 5 N

15 N and 15 N

15 N and 5 N

None of these

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Engineering Mechanics
The moment of a force

Is equal to the product of force acting on the body and the perpendicular distance of a point and the line of action of the force

Is the turning effect produced by a force, on the body, on which it acts

All of these

Is equal to twice the area of the triangle, whose base is the line representing the force and whose vertex is the point, about which the moment is taken

Is equal to the product of force acting on the body and the perpendicular distance of a point and the line of action of the force

Is the turning effect produced by a force, on the body, on which it acts

All of these

Is equal to twice the area of the triangle, whose base is the line representing the force and whose vertex is the point, about which the moment is taken

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Engineering Mechanics
An ideal machine is one whose efficiency is

Between 70 and 80%

Between 60 and 70 %

Between 80 and 90%

1

Between 70 and 80%

Between 60 and 70 %

Between 80 and 90%

1

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Engineering Mechanics

Engineering Mechanics If rain is falling in the opposite direction of the movement of a pedestrian, he has to hold his umbrella

Engineering Mechanics The friction experienced by a body, when at rest, is known as

Engineering Mechanics On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be

Engineering Mechanics Two like parallel forces are acting at a distance of 24 mm apart and their resultant is 20 N. It the line of action of the resultant is 6 mm from any given force, the two forces are

Engineering Mechanics The moment of a force

Engineering Mechanics An ideal machine is one whose efficiency is

Engineering Mechanics
If rain is falling in the opposite direction of the movement of a pedestrian, he has to hold his umbrella

Engineering Mechanics
The friction experienced by a body, when at rest, is known as

Engineering Mechanics
On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be

Engineering Mechanics
Two like parallel forces are acting at a distance of 24 mm apart and their resultant is 20 N. It the line of action of the resultant is 6 mm from any given force, the two forces are

Engineering Mechanics
The moment of a force

Engineering Mechanics
An ideal machine is one whose efficiency is