Theory of Machine The frequency of damped vibrations with viscous damping is ________ the frequency of undamped vibrations. Less than More than None of these Same as Less than More than None of these Same as ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The periodic time of one oscillation for a simple pendulum is (1/2π). √(g/l) 2π. √(l/g) (1/2π). √(l/g) 2π. √(g/l) (1/2π). √(g/l) 2π. √(l/g) (1/2π). √(l/g) 2π. √(g/l) 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 cos(α + φ) P = W tan(α - φ) P = W tan(φ - α) P = W tan(α + φ) P = W cos(α + φ) P = W tan(α - φ) P = W tan(φ - α) P = W tan(α + φ) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine ________ is an inversion of Double slider crank chain. Hand pump Reciprocating engine Scotch yoke mechanism Coupling rod of a locomotive Hand pump Reciprocating engine Scotch yoke mechanism Coupling rod of a locomotive ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO. The acceleration of the piston P with respect to the crank-pin C is given by ω² × CO ω² × QN ω² × NO ω² × CN ω² × CO ω² × QN ω² × NO ω² × CN ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The rotating shafts tend to vibrate violently at whirling speeds because Resonance is caused due to the heavy mass of the rotor Bearing centre line coincides with the axis The shafts are rotating at very high speeds The system is unbalanced Resonance is caused due to the heavy mass of the rotor Bearing centre line coincides with the axis The shafts are rotating at very high speeds The system is unbalanced ANSWER DOWNLOAD EXAMIANS APP
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