Theory of Machine A watt's governor can work satisfactorily at speeds from 200 to 300 r.p.m. 60 to 80 r.p.m. 100 to 200 r.p.m. 80 to 100 r.p.m. 200 to 300 r.p.m. 60 to 80 r.p.m. 100 to 200 r.p.m. 80 to 100 r.p.m. 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 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) 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 is _________ when the crank OC and connecting rod PC are at right angles to each other. Any +ve value Zero Any -ve value Infinity Any +ve value Zero Any -ve value Infinity ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following disciplines provides study of inertia forces arising from the combined effect of the mass and the motion of the parts? Kinetics Mechanisms Theory of machines Applied mechanics Kinetics Mechanisms Theory of machines Applied mechanics ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a reciprocating steam engine, when the crank has turned from inner dead centre through an angle θ, the angular velocity of the connecting rod is given by ω cosθ/(n² - cos²θ)1/2 ω sinθ/(n² - sin²θ)1/2 ω cosθ/(n² - sin²θ)1/2 ω sinθ/(n² - cos²θ)1/2 ω cosθ/(n² - cos²θ)1/2 ω sinθ/(n² - sin²θ)1/2 ω cosθ/(n² - sin²θ)1/2 ω sinθ/(n² - cos²θ)1/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by ωr₁ sinθ ω(R - r₁) sinθ ωR cosθ ω(R - r₁) cosθ ωr₁ sinθ ω(R - r₁) sinθ ωR cosθ ω(R - r₁) cosθ ANSWER DOWNLOAD EXAMIANS APP
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