Theory of Machine In a Hartnell governor, the stiffness of the spring is given by (where S1 and S2 = Spring forces exerted on the sleeve at max. and min. radii of rotation, and h = Compression of the spring) (S₁ + S₂) / 2h (S₁ - S₂) / 2h (S₁ - S₂) / h (S₁ + S₂) / h (S₁ + S₂) / 2h (S₁ - S₂) / 2h (S₁ - S₂) / h (S₁ + S₂) / h ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Flexible coupling is used because It transmits shocks gradually It prevents shock transmission and eliminates stress reversals It is easy to disassemble It is easy to engage and disengage It transmits shocks gradually It prevents shock transmission and eliminates stress reversals It is easy to disassemble It is easy to engage and disengage ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A cam mechanism imparts following motion Reciprocating All of these Oscillating Rotating Reciprocating All of these Oscillating Rotating ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The instantaneous center of a rigid thin disc rolling on a plane rigid surface is located at The point on the circumference situated vertically opposite to the contact point An infinite distance on the plane surface The center of the disc The point of contact The point on the circumference situated vertically opposite to the contact point An infinite distance on the plane surface The center of the disc The point of contact ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In S.H.M., the velocity vector w.r.t. displacement vector Lags by 90° Are in phase Leads by 90° Leads by 180° Lags by 90° Are in phase Leads by 90° Leads by 180° 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 × NO ω² × QN ω² × CN ω² × CO ω² × NO ω² × QN ω² × CN ANSWER DOWNLOAD EXAMIANS APP
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