Sense of tangential acceleration of a link
Is same as that of velocity
Is opposite to that of velocity
Could be either same or opposite to velocity
Is perpendicular to that of velocity
- The method of direct and reverse cranks is used in engines for
- The component of the acceleration, perpendicular to the velocity of the particle, at the given instant…
- In a steam engine, the earlier cut-off with a simple slide valve may be obtained by increasing the steam…
- The secondary unbalanced force is __________ the primary unbalanced force.
- In which of the following type of gear train the first gear and the last gear are co-axial.
- The maximum efficiency of spiral gears is (where θ = Shaft angle, and φ = Friction angle)
- In a disc clutch, if there are n₁ number of discs on the driving shaft and n₂ number of…
- Which one of the following can completely balance several masses revolving in different planes on a…
- Any point on a link connecting double slider crank chain will trace a
- The type of pair formed by two elements which are so connected that one is constrained to turn or revolve…
- There are six gears A, B, C, D, E and F in a compound train. The numbers of teeth in the gears are 20,…
- The frictional torque transmitted in a flat pivot bearing, considering uniform pressure, is (where μ…
- When the primary direct crank of a reciprocating engine makes an angle of θ with the line of stroke,…
- One end of a helical spring is fixed while the other end carries the load W which moves with simple…
- An exact straight line motion mechanism is a
- The number of links and instantaneous centers in a reciprocating engine mechanism are
- The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke…
- Which of the following is an open pair?
- Which of the following is false statement in respect of differences between machine and structure?
- Transmission of power from the engine to the rear axle of an automobile is by means of
- A rigid body possesses ________degrees of freedom
- The dedendum circle diameter is equal to (where, φ = Pressure angle)
- A body is said to be under forced vibrations, when
- In a cam drive with uniform velocity follower, the sharp corners of the displacement diagram are rounded…
- Crowning on pulleys helps
- Pulley in a belt drive acts as
- When the crank is at the inner dead centre, in a reciprocating steam engine, then the acceleration of…
- The velocity of the rubbing surface __________ with the distance from the axis of the bearing.
- The displacement of the reciprocating roller follower, when it has contact with the straight flanks…
- If the radius of gyration of a compound pendulum about an axis through e.g. is more, then its frequency…