1. Advantages of chemical fluids are
a) a very light residual film that is easy to remove
b) heat dissipation is rapid
c) good detergent properties
d) all of the mentioned
Explanation: Advantages of chemical fluids are
a) a very light residual film that is easy to remove
b) heat dissipation is rapid
c) good detergent properties
d) an easy concentration to control with no interference from tramp oils
2. The methods of application of cutting fluids are
a) flooding
b) jet application
c) mist application
d) all of the mentioned
Explanation: all of the mentioned
3. In _____________ a high volume flow of the cutting fluid is generally applied on the back of the chip.
a) flooding
b) jet application
c) mist application
d) all of the mentioned
Explanation: In flooding, a high volume flow of the cutting fluid is generally applied on the back of the chip while in a jet application the cutting fluid, which may be either a liquid or a gas is applied in the form of a fine jet under pressure.
4. In _________ the cutting fluid, which may be either a liquid or a gas is applied in the form of a fine jet under pressure.
a) flooding
b) jet application
c) mist application
d) all of the mentioned
Explanation: In flooding, a high volume flow of the cutting fluid is generally applied on the back of the chip while in jet application the cutting fluid, which may be either a liquid or a gas is applied in the form of a fine jet under pressure.
5. ______________ controls both direction of chip flow and the strength of the tool tip.
a) Side rake angle
b) Relief angle
c) Rake angle
d) None of the mentioned
Explanation: Rake angle is important in controlling both the direction of chip flow and the strength of the tool tip.
6. _______________ acts downward on the tool tip.
a) Cutting force
b) Radial force
c) Thrust force
d) None of the mentioned
Explanation: The cutting force, FC, acts downward on the tool tip and thus tends to deflect the tool downward and the workpiece upward. The cutting force supplies the energy required for the cutting operation.
7. _________ acts in the longitudinal direction.
a) Cutting force
b) Radial force
c) Thrust force
d) None of the mentioned
Explanation: The thrust force, Ft, acts in the longitudinal direction. It also is called the feed force, because it is in the feed direction of the tool.
8. ____________ acts in the radial direction.
a) Cutting force
b) Radial force
c) Thrust force
d) None of the mentioned
Explanation: The radial force, Fr, acts in the radial direction and tends to push the tool away from the workpiece.
9. For turning a small taper on a long workpiece, the suitable method is
a) by a form tool
b) by setting over the tail stock
c) by a taper turning attachment
d) none of the mentioned
Explanation: by setting over the tail stock
10. End of the work piece can be supported by using
a) Headstock
b) Tailstock
c) Tool Post
d) None of the mentioned
Explanation: Tailstock is used to support the end of the work piece in a lathe machine.