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Theory of Machine

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

Spiral gear
Helical gear
Bevel gear
Spur gear

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Theory of Machine
Relationship between the number of links (L) and number of pairs (P) is

P = 2L - 4
P = 2L + 4
P = 2L + 2
P = 2L - 2

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Theory of Machine
In a four stroke I.C. engine, the turning moment during the compression stroke is

Negative throughout
Positive during major portion of the stroke
Positive throughout
Negative during major portion of the stroke

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Theory of Machine
Angular acceleration of a link can be determined by dividing the

Tangential component of acceleration with length of link
Centripetal component of acceleration with length of link
All of these
Resultant acceleration with length of link

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Theory of Machine
When the particles of a body moves perpendicular to its axis, then the body is said to have

Torsional vibration
Transverse vibration
Longitudinal vibration
None of these

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Theory of Machine
In vibration isolation system, if ω/ωn < 2, then for all values of damping factor, the transmissibility will be (where ω = Angular speed of the system, ωn = Natural frequency of vibration of the system)

Greater than unity
Equal to unity
Less than unity
Zero

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