When the crank is at the inner dead centre, in a reciprocating steam engine, then the velocity of the piston will be None of these Maximum Minimum Zero TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following disciplines provides study of relative motion between the parts of a machine? Theory of machines Kinematics Applied mechanics Mechanisms TRUE ANSWER : ? YOUR ANSWER : ?
The instantaneous centers which vary with the configuration of mechanism are called None of these Permanent instantaneous centers Neither fixed nor permanent instantaneous centers Fixed instantaneous centers TRUE ANSWER : ? YOUR ANSWER : ?
In a Hartnell governor, the lift of the sleeve is given by (where r₁ and r₂ = Max. and min. radii of rotation, x = Length of ball arm of the lever, and y = Length of sleeve arm of the lever) (r₁ - r₂) (y/x) (r₁ - r₂) (x/y) (r₁ + r₂) (y/x) (r₁ + r₂) (x/y) TRUE ANSWER : ? YOUR ANSWER : ?
The method of direct and reverse cranks is used in engines for Kinematic analysis The control of speed fluctuations Vibration analysis Balancing of forces and couples TRUE ANSWER : ? YOUR ANSWER : ?
In a reciprocating steam engine, which of the following forms a kinematic link? Flywheel and engine frame Piston rod and connecting rod Crankshaft and flywheel Cylinder and piston TRUE ANSWER : ? YOUR ANSWER : ?
In vibration isolation system, the transmissibility will be equal to unity, for all values of damping factor, if ω/ωn is Greater than 2 Equal to 1 Less than 2 Equal to 2 TRUE ANSWER : ? YOUR ANSWER : ?
The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is 3 Hz 6 Hz 6π Hz 3π Hz TRUE ANSWER : ? YOUR ANSWER : ?
The locus of a point on a thread unwound from a cylinder will be A straight line Involute Cycloidal A circle TRUE ANSWER : ? YOUR ANSWER : ?
The number of centers in a crank driven slider crank mechanism is 4 2 6 TRUE ANSWER : ? YOUR ANSWER : ?