Theory of Machines MCQ with Answers

Theory of Machines MCQ with Answers

226) A force acting in the opposite direction to the motion of the body is called force of friction.

Answer is:

Right

227) A shaft has two heavy rotors mounted on it. The transverse natural frequencies, considering each of the rotor separately, are 100 Hz and 200 Hz respectively. The lowest critical speed is

Answer is:

5367 r.p.m.

228) Torsional vibrations are said to occur when the particles of a body moves

Answer is:

in a circle about its axis

229) A body is said to vibrate with simple harmonic motion if its acceleration is proportional to the distance from the mean position.

Answer is:

Yes

230) For the isochronous Porter governor, the controlling force curve is a straight line passing through the origin.

Answer is:

Correct

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