The power transmitted by a belt is maximum when the maximum tension in the belt is _________ of centrifugal tension.
One-third
Two-third
Double
Three times
- The engine of an aeroplane rotates in clockwise direction when seen from the tail end and the aeroplane…
- The velocity of the rubbing surface __________ with the distance from the axis of the bearing.
- A mass of 1 kg is attached to the end of a spring with a stiffness of 0.7 N/mm. The critical damping…
- Which of the following mechanism is an approximate straight line motion mechanism?
- Which gear is used for connecting two coplanar and intersecting shafts?
- In a system subjected to damped forced vibrations, the ratio of maximum displacement to the static deflection…
- The velocity of sliding of meshing gear teeth is (Where ω₁ and ω₂ are angular…
- In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and…
- In a differential band brake as shown in the below figure, the drum rotates anticlockwise and the greater…
- A completely constrained motion can be transmitted with.
- The gears are termed as medium velocity gears, if their peripheral velocity is
- The natural frequency of free transverse vibrations due to a point load acting over a simply supported…
- The Whitworth quick return motion mechanism is formed in a slider crank chain when the
- The static balancing is satisfactory for low speed rotors but with increasing speeds, dynamic balancing…
- If the pressure angle is __________, a reciprocating follower will jam in its bearings.
- ABCD is a four bar mechanism in which AB = 310 mm and CD = 450 mm. AB and CD are both perpendicular…
- In elliptical trammels
- If ω/ωn is very high for a body vibrating under steady state vibrations, the phase angle for…
- The motion between a pair which takes place in __________ is known as incompletely constrained motion.
- Higher pairs are those which have
- A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The radial…
- When the primary direct crank of a reciprocating engine makes an angle of θ with the line of stroke,…
- In order to balance the reciprocating masses,
- The frequency of damped vibrations with viscous damping is ________ the frequency of undamped vibrations.
- The Kutzbach criterion for determining the number of degrees of freedom (n) is (where l = number of…
- Which of the following mechanism is obtained from lower pair?
- The gear train usually employed in clocks is a
- The partial balancing of reciprocating parts in locomotives produces
- A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure,…
- A spring controlled governor is said to be stable if the controlling force line when produced intersects…