Theory of Machine When the nature of contact between the elements of a pair is such that it can only slide relative to the other, the pair is known as a Screw pair Spherical pair Turning pair Sliding pair Screw pair Spherical pair Turning pair Sliding pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is used to control the speed variations of the engine caused by the fluctuations of the engine turning moment? Flywheel D-slide valve Meyer's expansion valve Governor Flywheel D-slide valve Meyer's expansion valve Governor ANSWER DOWNLOAD EXAMIANS APP
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) / h (S₁ + S₂) / h (S₁ - S₂) / 2h (S₁ + S₂) / 2h (S₁ - S₂) / h (S₁ + S₂) / h (S₁ - S₂) / 2h 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
Theory of Machine A spring controlled governor is said to be isochronous when the controlling force Decreases as the radius of rotation increases Increases as the radius of rotation decreases Increases as the radius of rotation increases Remain constant for all radii of rotation Decreases as the radius of rotation increases Increases as the radius of rotation decreases Increases as the radius of rotation increases Remain constant for all radii of rotation ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In order to give a complete secondary balance of a multi-cylinder inline engine, Both (A) and (B) The algebraic sum of the couples about any point in the plane of the secondary forces must be equal to zero The algebraic sum of the secondary forces must be equal to zero None of these Both (A) and (B) The algebraic sum of the couples about any point in the plane of the secondary forces must be equal to zero The algebraic sum of the secondary forces must be equal to zero None of these ANSWER DOWNLOAD EXAMIANS APP
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