Which of the following statement is correct in regard to centreless grinding?

The workpiece is supported throughout its entire length as grinding takes place.
It is a continuous process and adopted for production work.
It requires no holding device for the work.
all of the above
✅ The correct answer is option D.

Which of the following statement is correct for orthogonal cutting system?

The cutting edge of the tool is perpendicular to the direction of tool travel.
The cutting edge clears the width of the workpiece on either ends.
The chip flows over the tool face and the direction of the chip flow velocity is normal to the cutting edge.
all of the above
✅ The correct answer is option D.

Side relief angle of a single point tool is the angle

by which the face of the tool is inclined towards back
by which the face of the tool is inclined sideways
between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of tool
between the surface of
✅ The correct answer is option C.