Theory of Machine In railway axle boxes, the bearing used is Double row self aligning ball bearing Deep groove ball bearing Double row spherical roller bearing Cylindrical roller bearing Double row self aligning ball bearing Deep groove ball bearing Double row spherical roller bearing Cylindrical roller bearing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a drag link quick return mechanism, the shortest link is always fixed. The sum of the shortest and longest link is Less than sum of other two Greater than sum of other two Equal to sum of other two There is no such relationship Less than sum of other two Greater than sum of other two Equal to sum of other two There is no such relationship ANSWER DOWNLOAD EXAMIANS APP
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 Higher pair Force-closed pair Lower pair Self-closed pair Higher pair Force-closed pair Lower pair Self-closed pair 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
Theory of Machine The inversion of a mechanism is Changing of a higher pair to a lower pair Obtained by reversing the input and output motion Turning its upside down Obtained by fixing different links in a kinematic chain Changing of a higher pair to a lower pair Obtained by reversing the input and output motion Turning its upside down Obtained by fixing different links in a kinematic chain ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A disturbing mass m₁ attached to the rotating shaft may be balanced by a single mass m₂ attached in the same plane of rotation as that of m₁, such that (where r₁ and r₂ are the radii of rotation of m₁ and m₂ respectively) m₁ m₂ = r₁ r₂ m₁ r₁ = m₂ r₂ None of these m₁ r₂ = m₂ r₁ m₁ m₂ = r₁ r₂ m₁ r₁ = m₂ r₂ None of these m₁ r₂ = m₂ r₁ ANSWER DOWNLOAD EXAMIANS APP
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