Theory of Machine When the elements of a pair are kept in contact by the action of external forces, the pair is said to be a Self-closed pair Force-closed pair Lower pair Higher pair Self-closed pair Force-closed pair Lower pair Higher pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The acceleration of a particle at any instant has two components i.e. radial component and tangential component. These two components will be Parallel to each other Opposite to each other Inclined at 45° Perpendicular to each other Parallel to each other Opposite to each other Inclined at 45° Perpendicular to each other ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine V-belts are usually used for Short drives Long and short drives Long drives None of these Short drives Long and short drives Long drives None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frequency of oscillation of a compound pendulum is 2π. √[(kG² + h²)/gh] 2π. √[gh/(kG² + h²)] (1/2π). √[gh/(kG² + h²)] (1/2π). √[(kG² + h²)/gh] 2π. √[(kG² + h²)/gh] 2π. √[gh/(kG² + h²)] (1/2π). √[gh/(kG² + h²)] (1/2π). √[(kG² + h²)/gh] ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine 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 2L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will Become equal to R/2 Become equal to 2R Remain same as before Become equal to R/4 Become equal to R/2 Become equal to 2R Remain same as before Become equal to R/4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Efficiency of a screw jack is given by tanα/tan (α - φ) tan (α - φ)/tanα tan (α + φ)/tanα tanα/tan (α +φ) tanα/tan (α - φ) tan (α - φ)/tanα tan (α + φ)/tanα tanα/tan (α +φ) ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS