The secondary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is
0° and 90°
180° and 360°
Both (A) and (B)
None of these
- In railway axle boxes, the bearing used is
- A mechanism __________ for transmitting or transforming motion.
- The steering of a ship means
- In a Hartnell governor, if a spring of greater stiffness is used, then the governor will be
- The advantage of the piston valve over the slide valve is that in the former case
- The sense of coriolis component 2 ωv is same as that of the relative velocity vector v rotated…
- Which of the following has sliding motion?
- The frequency of oscillation of a torsional pendulum is
- In a steam engine, the link constitutes a
- Whitworth quick return mechanism is obtained by inversion of
- In Meyer's expansion valve, the main valve is driven by an eccentric having an angle of advance from
- In a Hartnell governor, the lift of the sleeve is given by (where r₁ and r₂ = Max. and…
- In a drag link quick return mechanism, the shortest link is always fixed. The sum of the shortest and…
- If the opposite links of a four bar linkage are equal, the links will always form a
- For low and moderate speed engines, the cam follower should move with
- The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft,…
- A spring controlled governor is said to be unstable when the controlling force
- To obviate axial thrust, following gear drive is used
- In a simple harmonic motion, the velocity vector with respect to displacement vector
- The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke…
- The coefficient of fluctuation of speed is __________ of maximum fluctuation of speed and the mean speed.
- With usual notations for different parameters involved, the maximum fluctuations of energy for a flywheel…
- For an involute gear, the ratio of base circle radius and pitch circle radius is equal to
- Which of the following would constitute a link?
- The type of gears used to connect two non parallel and non intersecting shafts is
- The dynamic friction is the friction experienced by a body, when the body
- Which of the following mechanism is an approximate straight line motion mechanism?
- The radial distance of a tooth from the pitch circle to the bottom of the tooth is called
- In involute gears, the pressure angle is
- When the body is suspended at the point of suspension, its periodic time and frequency will be ________…