Theory of Machine In a screw jack, the effort required to lower the load W is given by 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 a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The minimum length of the coupler will be 45 mm Slightly less than 45 mm Slightly more than 45 mm 95 mm 45 mm Slightly less than 45 mm Slightly more than 45 mm 95 mm ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A spring controlled governor is found unstable. It can be made stable by Decreasing the spring stiffness Increasing the spring stiffness Increasing the ball mass Decreasing the ball mass Decreasing the spring stiffness Increasing the spring stiffness Increasing the ball mass Decreasing the ball mass ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The secondary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is None of these Both (A) and (B) 180° and 360° 0° and 90° None of these Both (A) and (B) 180° and 360° 0° and 90° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The height of a Watt's governor (in meters) is equal to (where N = Speed of the arm and ball about the spindle axis) 89.5/N² 895/N² 8.95/N² 8950/N² 89.5/N² 895/N² 8.95/N² 8950/N² ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The indicator using Watt mechanism is known as Simplex indicator Thomson indicator Thompson indicator Richard indicator Simplex indicator Thomson indicator Thompson indicator Richard indicator ANSWER DOWNLOAD EXAMIANS APP
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