Theory of Machine In a radial cam, the follower moves In a direction parallel to the cam axis In any direction irrespective of the cam axis In a direction perpendicular to the cam axis Along the cam axis In a direction parallel to the cam axis In any direction irrespective of the cam axis In a direction perpendicular to the cam axis Along the cam axis ANSWER DOWNLOAD EXAMIANS APP
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 1/24 12 1/8 4/15 1/24 12 1/8 4/15 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The instantaneous center of a rigid thin disc rolling on a plane rigid surface is located at The point on the circumference situated vertically opposite to the contact point An infinite distance on the plane surface The center of the disc The point of contact The point on the circumference situated vertically opposite to the contact point An infinite distance on the plane surface The center of the disc The point of contact ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frictional torque transmitted in a flat pivot bearing, assuming uniform wear, is (Where μ = Coefficient of friction, W=Load over the bearing, R=Radius of bearing) ½μWR ²/₃ μWR ¾μWR μwr ½μWR ²/₃ μWR ¾μWR μwr ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The balancing of a rigid rotor can be achieved by appropriately placing balancing masses in Four planes Two planes Three planes A single plane Four planes Two planes Three planes A single plane ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The displacement of the reciprocating roller follower, when it has contact with the straight flanks of the tangent cam, is given by (where r₁ = Minimum radius of the cam, r₂ = Radius of the roller follower, and θ = Angle turned by the cam from the beginning of the follower displacement) (r₁ - r₂) (1 - cosθ) (r₁ - r₂) [(1 - cosθ)/cosθ] (r₁ + r₂) (1 + cosθ) (r₁ + r₂) [(1 - cosθ)/cosθ] (r₁ - r₂) (1 - cosθ) (r₁ - r₂) [(1 - cosθ)/cosθ] (r₁ + r₂) (1 + cosθ) (r₁ + r₂) [(1 - cosθ)/cosθ] ANSWER DOWNLOAD EXAMIANS APP
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