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Applied Mechanics and Graphic Statics MCQ - Multiple Choice Question and Answer

Applied Mechanics and Graphic Statics MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 1
A smooth cylinder lying on its convex surface remains

In stable equilibrium
In unstable equilibrium
In neutral equilibrium
Out of equilibrium

Question No : 2
Which one of the following statements is true?

The tangent of the angle of friction is equal to coefficient of friction
The angle of repose is equal to angle of friction
The tangent of the angle of repose is equal to coefficient of friction
All the above

Question No : 3
A body is said to move with Simple Harmonic Motion if its acceleration, is

Always directed away from the centre, the point of reference
Proportional to the square of the distance from the point of reference
Proportional to the distance from the point of reference and directed towards it
Inversely proportion to the distance from the point of reference

Question No : 4
The forces which meet at one point and have their lines of action in different planes are called

Coplanar non-concurrent forces
Non-coplanar concurrent forces
Non-coplanar non-current forces
Intersecting forces

Question No : 5
The Law of Polygon of Forces states that

If a polygon representing the forces acting at point in a body is closed, the forces are in equilibrium
If forces acting on a point can be represented in magnitude and direction by the sides of a polygon taken in order, then the resultant of the forces will be represented in magnitude and direction by the closing side of the polygon
If forces acting on a point can be represented of a polygon taken in order, their sides of a polygon taken in order, their resultant will be represented in magnitude and direction by the closing side of the polygon, taken in opposite order
If forces acting on a point can be represented in magnitude and direction by the sides of a polygon in order, the forces are in equilibrium

Question No : 6
A spring scale in a stationary lift shows a reading of 60 kg for a man standing on it. If the lift starts descending at an acceleration of g/5, the scale reading would be

48 kg
60 kg
72 kg
None of these

Question No : 7
A heavy ladder resting on floor and against a vertical wall may not be in equilibrium if

Floor is smooth and wall is rough
Floor is rough and wall is smooth
Both floor and wall are rough
Both floor and wall are smooth