Theory of Machine
In railway axle boxes, the bearing used is

Deep groove ball bearing
Cylindrical roller bearing
Double row spherical roller bearing
Double row self aligning ball bearing

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
The sense of Coriolis component 2 ωv is same as that of the relative velocity vector v rotated at

45° in the direction of rotation of the link containing the path
45° in the direction opposite to the rotation of the link containing the path
90° in the direction of rotation of the link containing the path
180° in the direction opposite to the rotation of the link containing the path

ANSWER DOWNLOAD EXAMIANS APP