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Theory of Machine

Theory of Machine
The acceleration of the particle moving with simple harmonic motion is _________ at the mean position.

Zero
None of these
Minimum
Maximum

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Theory of Machine
Typewriter constitutes

Mechanism
Machine
Structure
Inversion

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Theory of Machine
The type of gears used to connect two non parallel and non intersecting shafts is

Spur gear
Spiral gear
Bevel gear
Helical gear

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Theory of Machine
A body having moment of inertia o:m2 is rotating at 210 RPM and r with another body at rest having I 40 kg m2. The resultant speed after ing will be

100 RPM
data are insufficient
80 RPM
90 RPM

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Theory of Machine
There are six gears A, B, C, D, E and F in a compound train. The numbers of teeth in the gears are 20, 60, 30, 80, 25 and 75 respectively. The ratio of angular speeds of the driven (F) to the driver (A) of the drive is

12
1/24
4/15
1/8

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Theory of Machine
In a system subjected to damped forced vibrations, the ratio of maximum displacement to the static deflection is known as

Critical damping ratio
Magnification factor
Damping factor
Logarithmic decrement

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