Applied Mechanics and Graphic Statics MCQ Question with 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 : 15
If A is the amplitude of particle executing simple harmonic motion, then the total energy E of the particle is

Proportional to A

Proportional to A²

Proportional to 1/A²

Independent of A

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Question No : 16
If the resultant of two forces P and Q acting at an angle θ makes an angle α with P, then tan α equals

P sin θ/P - Q cos θ

Q sin θ/P + Q cos θ

P sin θ/P + Q tan θ

Q sin θ/P + Q sin θ

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Question No : 17
On a ladder resisting on a smooth ground and leaning against a rough vertical wall, the force of friction acts

Towards the wall at its upper end

Away from the wall at its upper end

Upwards at its upper end

Downwards at its upper end

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Question No : 18
Pick up the correct statement from the following:

If two equal and perfectly elastic smooth spheres impinge directly, they interchange their velocities

If a sphere impinges directly on an equal sphere which is at rest, then a fraction ½(1 - e2) the original kinetic energy is lost by the impact

If two equal spheres which are perfectly elastic impinge at right angles, their direction after impact will still be at right angles

All the above

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Question No : 19
The acceleration of a train starting from rest at any instant is 1/6(V + 1) m/sec² where V is the velocity of the train in m/sec. The train will attain a velocity of 36 km/hour after travelling a distance of

2000 m

2100 m

2200 m

2300 m

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Question No : 20
Two loads of 50 kg and 75 kg are hung at the ends of a rope passing over a smooth pulley shown in below figure. The tension in the string is: