Theory of Machine Which of the following mechanism is an approximate straight line motion mechanism? Grasshopper mechanism Robert's mechanism All of these Watt's mechanism Grasshopper mechanism Robert's mechanism All of these Watt's mechanism 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 × CN ω² × QN ω² × NO ω² × CO ω² × CN ω² × QN ω² × NO ω² × CO ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the addenda on pinion and wheel is such that the path of approach and path of recess are half of their maximum possible values, then the length of the path of contact is given by (where r = Pitch circle radius of pinion, R = Pitch circle radius of wheel, and φ = Pressure angle) [(r² + R²) cosφ]/2 [(r² + R²) sinφ]/2 [(r + R) sinφ]/2 [(r + R) cosφ]/2 [(r² + R²) cosφ]/2 [(r² + R²) sinφ]/2 [(r + R) sinφ]/2 [(r + R) cosφ]/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The radial component of the acceleration of B with respect to A, is (where vBA = Linear velocity of B with respect to A) vBA /AB vBA × AB v²BA /AB v²BA vBA /AB vBA × AB v²BA /AB v²BA ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The unbalanced primary forces in a reciprocating engine are Balanced partially Balanced by secondary forces Balanced completely Not balanced Balanced partially Balanced by secondary forces Balanced completely Not balanced ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The ratio of height of Porter governor (when length of arms and links are equal) to the height of Watt's governor is (where m = Mass of the ball, and M = Mass on the sleeve) m/(m + M) M/(m + M) (m + M)/M (m + M)/m m/(m + M) M/(m + M) (m + M)/M (m + M)/m ANSWER DOWNLOAD EXAMIANS APP
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