• 1. When carrying out machining cutting resistance is generated. Cutting resistance is related to the shear angle and other factors. If the shear angle increases then the chip thickness becomes thinner resulting in?

  AHigher cutting resistance. BLower cutting resistance. CUnaffected cutting resistance.

• 2. If the cutting resistance is too high then dimensional accuracy of the part and tool life can deteriorate. Which of the following cannot be used to decrease the cutting resistance?

  AUse of a larger rake angle and lower cutting speeds. BUse of a larger rake angle and a tool grade with low affinity. CUse of coolant and higher cutting speeds.

• 3. For turning and boring there are a wide variety of insert geometries made available. The reason for this is?

  ASo that insert geometry selection can be carried out based on the workpiece material. BSo that insert geometry selection can be carried out based on the tool holder being used. CSo that the inserts can be selected based on the machining application to be carried out.

• 4. When using a large radius insert for low depth of cuts, the average chip thickness decreases leading to problems such as;

  AAn improvement in chip control properties. BA reduction in chip control properties. CAn increase in cutting resistance.

• 5. When boring with a large nose radii which of the following is incorrect?

  AWhen smaller depths of cut are used in combination with a large insert corner radii effective chip control cannot be achieved. BCutting edge strength is reduced leading to fracturing. CLarger corner radii create higher back forces that can lead to vibration.

• 6. When boring generally positive inserts are used. What is the reason behind this?

  ATo provide a sharper edge to provide improved cutting edge strength. BTo avoid interference between the insert flank face and the internal bore. CTo improve the chip disposal properties.

• 7. In reference to chip control properties, when the cutting speed is increased what affect does this have on chip control?

  AThe area for effective chip control reduces. BThe area for effective chip control increases. CIncreasing the cutting speed does not have an affect on chip control.

• 8. In reference to chip control properties, when the side cutting edge angle increased, what affect does this have on chip control?

  AThe chip thickness becomes thinner and chip disposal deteriorates. BThe chip thickness increases and chip disposal deteriorates. CIncreasing the lead angle does not have an affect on chip control.

• 9. Which of the following is not termed as normal wear pattern?

  ANotch wear. BRake wear. CFlank wear.

• 10. If continuous chips are problematic one method to prevent this is to;

  ADecrease the cutting speed or increase the feed and depth of cut. BIncrease the nose radius. CIncrease the side cutting edge angle.
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