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 is also +ve a = 0 and b is +ve a is +ve and b is -ve a is +ve and b = 0 a is +ve and b is also +ve a = 0 and b is +ve a is +ve and b is -ve a is +ve and b = 0 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Hammer blow Is the maximum horizontal unbalanced force caused by the mass provided to balance the reciprocating masses. Is the maximum vertical unbalanced force caused by the mass added to balance the reciprocating masses Varies as the square root of the speed Varies inversely with the square of the speed Is the maximum horizontal unbalanced force caused by the mass provided to balance the reciprocating masses. Is the maximum vertical unbalanced force caused by the mass added to balance the reciprocating masses Varies as the square root of the speed Varies inversely with the square of the speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a steam engine, the link constitutes a All of these Piston, piston rod and cross-head Crank pin, crankshaft and flywheel Connecting rod with big and small end brasses, caps and bolts All of these Piston, piston rod and cross-head Crank pin, crankshaft and flywheel Connecting rod with big and small end brasses, caps and bolts ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Sensitiveness of the governor is defined as the ratio of the Sum of the maximum and minimum equilibrium speeds to the mean speed Difference of the maximum and minimum equilibrium speeds to the mean speed Mean speed to the minimum equilibrium speed Mean speed to the maximum equilibrium speed Sum of the maximum and minimum equilibrium speeds to the mean speed Difference of the maximum and minimum equilibrium speeds to the mean speed Mean speed to the minimum equilibrium speed Mean speed to the maximum equilibrium speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The absolute acceleration of any point ‘P’ in a link about center of rotation ‘O’ is Perpendicular to PO None of the listed here Along PO At 45° to PO Perpendicular to PO None of the listed here Along PO At 45° to PO ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line Not possible to determine with these data At 45° to line as per (A) Joining the corresponding points Perpendicular to line as per (A) Not possible to determine with these data At 45° to line as per (A) Joining the corresponding points Perpendicular to line as per (A) ANSWER DOWNLOAD EXAMIANS APP
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