In offhand grinding operations, ____.
Great accuracy is required.
The grinding is done on a lathe.
The part is held in the operator’s hands.
The part is rotated against a stationary abrasive tool.
A wet grinder __________.
Has no provision for cooling the work.
Requires that the part be dipped in water.
Keeps the wheels constantly flooded with fluid.
Cools the work by blowing air across its surface.
For safety reasons, the tool rest on a bench or pedestal grinder should be a maximum of ______ from the wheel.
1/16”(1.5mm)
3/32”(2.4mm)
1/8”(3.2mm)
3/16”(4.8mm)
Portable hand grinders are often used for ___________.
roughing
light deburring
sharpening tools
grinding to precise sizes
Grinding wheels should be examined frequently for all of the following except
cracks
diameter
concentricity
roundness
To obtain maximum efficiency from a grinder, you should _________.
hold the work in one place on the wheel face
grind using the sides of the wheel
use the face of the wheel, not the sides
grind only soft metals
The face of the wet grinder is crowned slightly to minimize the possibility of a carbide tip lathe cutting tool from. _____
being ground away too rapidly
damaging the wheel by causing excessive wear
being damaged or destroyed by excessive heat buildup
cracking the grinding wheel
