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Theory of Machine

Theory of Machine
Which gear is used for connecting two coplanar and intersecting shafts?

Bevel gear
None of these
Spur gear
Helical gear

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Theory of Machine
An engine operates between temperatures of 900°Kandr2 and another engine between T2 and 400°K For both to do equal work, value of T2 will be

700°K
600°K
650°K
625°K

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Theory of Machine
The D-slide valve is also known as

Piston slide valve
Inside admission valve
Outside admission valve
None of these

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Theory of Machine
In S.H.M., the velocity vector w.r.t. displacement vector

Are in phase
Leads by 90°
Leads by 180°
Lags by 90°

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Theory of Machine
To connect two parallel and coplanar shafts the following type of gearing is used

None of the listed here
Spur gear
Spiral gear
Bevel gear

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Theory of Machine
The velocity of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by (where ω = Angular velocity of the cam shaft)

ω (r₁ r₂) sinθ
ω (r₁ + r₂) sinθ sec2θ
ω (r₁ r₂) cosθ
ω (r₁ + r₂) cosθ cosec2θ

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