1.
The property of a bearing material which has the ability to accommodate shaft deflections and bearing inaccuracies by plastic deformation without excessive wear and heating, is known as

3.
The notch sensitivity q is expressed in terms of fatigue stress concentration factor Kf and theoretical stress concentration factor Kt as

4.
Which of the following key is preferred for the condition when a large amount of impact type torque is to be transmitted in both direction of rotation?