Theory of Machine The maximum fluctuation of speed is the Difference of minimum fluctuation of speed and the mean speed Variations of speed above and below the mean resisting torque line Difference of the maximum and minimum speeds Sum of maximum and minimum speeds Difference of minimum fluctuation of speed and the mean speed Variations of speed above and below the mean resisting torque line Difference of the maximum and minimum speeds Sum of maximum and minimum speeds ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The partial balancing of reciprocating parts in locomotives produces Variation in tractive force along the line of stroke Hammer blow All of these Swaying couple Variation in tractive force along the line of stroke Hammer blow All of these Swaying couple ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A higher pair has__________. Surface contact None of these No contact Point contact Surface contact None of these No contact Point contact ANSWER DOWNLOAD EXAMIANS APP
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) Less than unity Zero Greater than unity Equal to unity Less than unity Zero Greater than unity Equal to unity ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and φ = Angle of friction) P = W tan(φ - α) P = W tan(α + φ) P = W tan(α - φ) P = W cos(α + φ) P = W tan(φ - α) P = W tan(α + φ) P = W tan(α - φ) P = W cos(α + φ) 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)/cosθ] (r₁ + r₂) [(1 - cosθ)/cosθ] (r₁ + r₂) (1 + cosθ) (r₁ - r₂) (1 - cosθ) (r₁ - r₂) [(1 - cosθ)/cosθ] (r₁ + r₂) [(1 - cosθ)/cosθ] (r₁ + r₂) (1 + cosθ) (r₁ - r₂) (1 - cosθ) ANSWER DOWNLOAD EXAMIANS APP
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