Which of the following is false statement in respect of differences between machine and structure?
Machines transmit mechanical work, whereas structures transmit forces
In machines, relative motion exists between its members, whereas same does not exist in case of structures
Machines modify movement and work, whereas structures modify forces
Efficiency of machines as well as structures is below 100%
- The method of direct and reverse cranks is used in engines for
- A combination of kinematic pairs, joined in such a way that the relative motion between the links is…
- Throw of a cam is the maximum distance of the follower from
- According to Kennedy's theorem, if three bodies move relatively to each other, their instantaneous centres…
- Open pairs are those which have
- The rotor of a ship rotates in clockwise direction when viewed from stern and the ship takes a left…
- In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line…
- The main disadvantage of the sliding pair is that it is
- The included angle for the V-belt is usually
- Angular acceleration of a link can be determined by dividing the
- The relative velocity of B with respect to A in a rigid link AB is
- Which of the following disciplines provides study of relative motion between the parts of a machine?
- The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity…
- In a differential band brake as shown in the below figure, if the length OB is greater than OA, then…
- When the radius of rotation of balls __________ as the equilibrium speed increases, the governor is…
- The number of links and instantaneous centers in a reciprocating engine mechanism are
- Which of the following is a lower pair?
- In a ball bearing, ball and bearing forms a
- The condition for correct steering of a Davis steering gear is (where α = Angle of inclination…
- The pressure angle of a cam is the angle between the direction of the follower motion and a normal to…
- The relation l = (2/3).(j + 2) apply only to kinematic chains in which lower pairs are used. This may…
- A Hartnell governor is a
- The component of the acceleration, perpendicular to the velocity of the particle, at the given instant…
- Typewriter constitutes
- If the controlling force line for a spring controlled governor when produced intersects the Y-axis at…
- The velocity of piston in a reciprocating steam engine is given by (where ω = Angular velocity…
- Scotch yoke mechanism is used to generate
- For low and moderate speed engines, the cam follower should move with
- Which one of the following is an exact straight line mechanism using lower pairs?
- In a drag link quick return mechanism, the shortest link is always fixed. The sum of the shortest and…