A slider moving on a fixed link having constant radius of curvature will have its instantaneous centre at the centre of the circle.
Which of the following statement is correct?
In a steam engine, the link constitutes a
Which of the following is an inversion of a single slider crank chain?
The uniform pressure theory gives a higher frictional torque than the uniform wear theory.
The product of the diametral pitch and circular pitch is equal to
When two pulleys are connected by means of an open belt drive, then both the pulleys will rotate is opposite directions.
If the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half the mean radius of the former, then energy stored in the latter at the same speed will be
According to Kennedy's theorem, if three bodies move relatively to each other, their instantaneous centres will lie on a
The magnitude of velocities of the points on a rigid link is
If the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half the mean radius of the former, then energy stored in the latter at the same speed will be
The secondary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is
A very sensitive governor will cause hunting.
The centrifugal tension on the belt has no effect on the power transmitted.
The coriolis component of acceleration is taken into account for
A mechanism consisting of four links is called a __________ mechanism.
Whitworth quick return motion mechanism is an inversion of a double slider crank chain.
A railway bridge is an example of a machine.
The Grubler's criterion for determining the degrees of freedom (n) of a mechanism having plane motion is (where l = Number of links, and j = Number of binary joints)
The tangential component of acceleration of the slider with respect to the coincident point on the link is called coriolis component of acceleration.
A pendulum type governor is a Watt governor.
In a kinematic chain, a quaternary joint is equivalent to
In a radial cam, the follower moves
Which of the following is a turning pair?
The Klein's diagram is used when
The train value of a gear train is
The velocity of a body moving with simple harmonic motion is __________ at the mean position.
The flank of the tooth is the surface of the tooth __________ the pitch surface.
The natural frequency of free transverse vibrations is same as that of free longitudinal vibrations.
The amplitude of vibration is always __________ the radius of the circle.
The maximum gyroscopic couple acting on the ship tends to shear the holding down bolts.
Scott Russell's mechanism is made up of sliding pair.
Torsional vibrations are said to occur when the particles of a body moves
In a Hartnell governor, if a spring of greater stiffness is used, then the governor will be
The periodic time is given by (where ω = Angular velocity of the particle in rad/s)
Torsional vibrations are said to occur when the particles of a body moves
In a single slider crank chain
For dynamic balancing of a shaft
The piston slide valve is an inside admission valve.
In a simple train of wheels, the velocity ratio __________ the intermediate wheels.
When the primary direct crank of a reciprocating engine makes an angle of θ with the line of stroke, then the secondary direct crank will make an angle of __________ with the line of stroke.
The driving and driven shafts connected by a Hooke's joint will have equal speeds, if
A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at high speed of the rotor, reaction on the left bearing is R. The right side of the bearing is shifted to a new position 2 L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will
The throw of the eccentric is equal to the valve travel.
The direction of linear velocity of any point on a link with respect to another point on the same link is
An involute pinion and gear are in mesh. If both have the same size of addendum, then there will be an interference between the
In a simple train of wheels, if the number of intermediate wheels is odd, the motion of the follower will be same as that of the driver.
In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set to
Which of the following is an example of a higher pair ?
A body is said to vibrate with simple harmonic motion if its acceleration is proportional to the distance from the mean position.