Theory of Machine In railway axle boxes, the bearing used is 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 Double row self aligning ball bearing Deep groove ball bearing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Length of arc of contact is given by Arc of approach + Arc of recess Arc of approach × Arc of recess Arc of approach - Arc of recess Arc of approach / Arc of recess Arc of approach + Arc of recess Arc of approach × Arc of recess Arc of approach - Arc of recess Arc of approach / Arc of recess ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following has sliding motion? Cross-head Crank pin Connecting rod Crank Cross-head Crank pin Connecting rod Crank ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The unbalanced force due to revolving masses Varies in magnitude but constant in direction Constant in magnitude and direction both Varies in magnitude and direction both Varies in direction but constant in magnitude Varies in magnitude but constant in direction Constant in magnitude and direction both Varies in magnitude and direction both Varies in direction but constant in magnitude ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line Not possible to determine with these data Perpendicular to line as per (A) Joining the corresponding points At 45° to line as per (A) Not possible to determine with these data Perpendicular to line as per (A) Joining the corresponding points At 45° to line as per (A) 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 Become equal to R/4 Remain same as before Become equal to R/2 Become equal to 2R Become equal to R/4 Remain same as before ANSWER DOWNLOAD EXAMIANS APP
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