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Engineering
Mechanical
ME Set-1
Theory of Machines
164

Theory of Machines MCQ with Answers

164) In a locomotive, the maximum magnitude of the unbalanced force along the perpendicular to the line of stroke, is known as

tractive force

swaying couple

hammer blow

none of these

Answer is:

hammer blow

Theory of Machines MCQ with Answers

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165) For low and moderate speed engines, the cam follower should move with

uniform velocity

simple harmonic motion

uniform acceleration and retardation

cycloidal motion

Answer is:

simple harmonic motion

For low and moderate speed engines, the cam follower should move with

166) If ?/?_n is very low for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach

0 Degree

90 Degree

180 Degree

360 Degree

Answer is:

0 Degree

167) A system in dynamic balance implies that

the system is critically damped

there is no critical speed in the system

the system is also statically balanced

there will absolutely no wear of bearings

Answer is:

the system is also statically balanced

168) The example of completely constrained motion is a

motion of a piston in the cylinder of a steam engine

motion of a square bar in a square hole

motion of a shaft with collars at each end in a circular hole

all of the above

Answer is:

all of the above

Explanation:

When the motion between a pair is limited to a definite direction irrespective of the direction of force applied, then the motion is said to be a completely constrained motion.

The example of completely constrained motion is a

Theory of Machines MCQ with Answers

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164) In a locomotive, the maximum magnitude of the unbalanced force along the perpendicular to the line of stroke, is known as

hammer blow

Theory of Machines MCQ with Answers

Related Theory of Machines MCQ with Answers

165) For low and moderate speed engines, the cam follower should move with

simple harmonic motion

166) If ?/?n is very low for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach

0 Degree

167) A system in dynamic balance implies that

the system is also statically balanced

168) The example of completely constrained motion is a

all of the above

Theory of Machines MCQ with Answers

166) If ?/?_n is very low for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach