Theory of Machine In Meyer's expansion valve, the main valve is driven by an eccentric having an angle of advance from 15°-25° 25°-30° 10°-15° 30°-40° 15°-25° 25°-30° 10°-15° 30°-40° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Shaft revolving in a bearing is the following type of pair Spherical pair Lower pair Cylindrical pair Higher pair Spherical pair Lower pair Cylindrical pair Higher pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to G.I₂ I₂/G I₂/G² G².I₂ G.I₂ I₂/G I₂/G² G².I₂ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A spring controlled governor is found unstable. It can be made stable by Decreasing the ball mass Decreasing the spring stiffness Increasing the ball mass Increasing the spring stiffness Decreasing the ball mass Decreasing the spring stiffness Increasing the ball mass Increasing the spring stiffness ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A Hartnell governor has its controlling force (Fc) given by Fc = ar + b, where r is the radius of rotation and a and b are constants. The governor becomes isochronous when a is +ve and b = 0 a = 0 and b is +ve a is +ve and b is -ve a is +ve and b is also +ve a is +ve and b = 0 a = 0 and b is +ve a is +ve and b is -ve a is +ve and b is also +ve ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Higher pairs are those which have Elements of pairs not held together mechanically Point or line contact between the two elements when in motion Surface contact between the two elements when in motion Two elements that permit relative motion Elements of pairs not held together mechanically Point or line contact between the two elements when in motion Surface contact between the two elements when in motion Two elements that permit relative motion ANSWER DOWNLOAD EXAMIANS APP
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