Theory of Machine In railway axle boxes, the bearing used is Cylindrical roller bearing Double row spherical roller bearing Deep groove ball bearing Double row self aligning ball bearing Cylindrical roller bearing Double row spherical roller bearing Deep groove ball bearing Double row self aligning ball bearing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is 6 Hz 3 Hz 6π Hz 3π Hz 6 Hz 3 Hz 6π Hz 3π Hz ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In vibration isolation system, if ω/ωn < 2, then for all values of damping factor, the transmissibility will be (where ω = Angular speed of the system, ωn = Natural frequency of vibration of the system) Greater than unity Zero Less than unity Equal to unity Greater than unity Zero Less than unity Equal to unity ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The ratio of the driving tensions for V-belts is __________ times that of flat belts.(Where β = Semi-angle of the groove) cosβ cosecβ secβ sinβ cosβ cosecβ secβ sinβ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Cam size depends upon Outer circle Prime circle Pitch circle Base circle Outer circle Prime circle Pitch circle Base circle ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and φ = Angle of friction) P = W cos(α + φ) P = W tan(α - φ) P = W tan(φ - α) P = W tan(α + φ) P = W cos(α + φ) P = W tan(α - φ) P = W tan(φ - α) P = W tan(α + φ) ANSWER DOWNLOAD EXAMIANS APP
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