APPLIED MECHANICS AND GRAPHIC STATICS QUIZ

Impulse can be obtained from a

Force-time diagram

Velocity-displacement diagram

Force-displacement diagram

Velocity-time diagram

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To double the period of oscillation of a simple pendulum

Its length should be quadrupled

The mass of its bob should be doubled

The mass of its bob should be quadrupled

Its length should be doubled

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Joule is the unit of

Power

Work

Momentum

Impulse

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Parallelogram Law of Forces states, "if two forces acting simultaneously on a particle be represented in magnitude and direction by two adjacent sides of a parallelogram, their resultant may be represented in magnitude and direction by

Its longer side

The diagonal of the parallelogram which passes through the point of intersection of the forces

The diagonal of the parallelogram which does not pass through the point of intersection of the forces

Its shorter side

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A projectile has maximum range of 40 m on a horizontal plane. If angle of projection is a and the time of flight is 1 second, then sin a must be about (Assume g = 10 m/sec²)

43835

43833

43832

43834

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The resultant of two forces acting at right angles is √34 kg and acting at 60° is 70 kg. The forces are

2 kg and 3 kg

3 kg and 5 kg

1 kg and 4 kg

√3 kg and √5 kg

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If two forces are in equilibrium, then the forces must (i) Be equal in magnitude (ii) Be opposite in sense (iii) Act along the same line

(i) and (iii)

All (i), (ii) and (iii)

(i) and (ii)

Only (i)

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Time of flight of a projectile on a horizontal plane, is

2u sinα/g

2u tanα/g

2u cosα/g

2u cotα/g

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Newton’s Law of Motion is:

All listed here

The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction, in which the force acts

Everybody continues in its state of rest or of uniform motion in a straight line, unless it is acted upon by some external force

To every action, there is always an equal and opposite reaction

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The following is in unstable equilibrium

A satellite encircling the earth

A solid cube resting on one edge

A uniform solid cone resting on a generator on a smooth horizontal plane

A uniform solid cone resting on its base on a horizontal plane

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