Podcast
Questions and Answers
What is the purpose of the 'Wheel guard'?
What is the purpose of the 'Wheel guard'?
- To protect the operator from the wheel (correct)
- To sharpen the cutting tool
- To guide the workpiece
- To store the cutting tools
What is the name of the chisel with a curved cutting edge?
What is the name of the chisel with a curved cutting edge?
- Web chisel
- Diamond point chisel
- Half round nose chisel
- Cape chisel (correct)
What is the name of the instrument marked 'x'?
What is the name of the instrument marked 'x'?
- Coolant container
- Tool rest
- Scriber (correct)
- Guide pin
What is the name of the chisel with a single cutting edge?
What is the name of the chisel with a single cutting edge?
What is the size of the grinding wheel?
What is the size of the grinding wheel?
What is the name of the part of the file?
What is the name of the part of the file?
What is the purpose of making a light punch mark on a workpiece?
What is the purpose of making a light punch mark on a workpiece?
What is the snug?
What is the snug?
What should you do if your hacksaw blade becomes dull?
What should you do if your hacksaw blade becomes dull?
What is the name of the instrument used for guiding the workpiece?
What is the name of the instrument used for guiding the workpiece?
What is likely to happen if you run a grinder without truing?
What is likely to happen if you run a grinder without truing?
What happens if the rake angle of a chisel increases?
What happens if the rake angle of a chisel increases?
What should you do if your hacksaw is not cutting a straight line?
What should you do if your hacksaw is not cutting a straight line?
What is the purpose of marking witness marks on a workpiece?
What is the purpose of marking witness marks on a workpiece?
What is the purpose of bringing material to accurate size?
What is the purpose of bringing material to accurate size?
What is the purpose of a face in cutting tools?
What is the purpose of a face in cutting tools?
What type of file is used for heavy reduction of material?
What type of file is used for heavy reduction of material?
What is the use of a Half round nose chisel?
What is the use of a Half round nose chisel?
Which grade of files remove small quantities of material and to give good finish?
Which grade of files remove small quantities of material and to give good finish?
What is indicated by ‘X’?
What is indicated by ‘X’?
Which file is used for filing narrow grooves and angles more than 100?
Which file is used for filing narrow grooves and angles more than 100?
What is the purpose of a second cut file?
What is the purpose of a second cut file?
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Study Notes
Filing Operations
- A 45° angle is used to bring material to accurate size and face it.
- A 50° angle is used to remove a small quantity of material and pein.
- A 55° angle is used to bring the job close to finishing size and cheek.
- A 60° angle is used for dead smooth filing and eye hole.
File Types
- Rough files are used for heavy reduction of material.
- Smooth files are used for removing small quantities of material and giving a good finish.
- Bastard files are used for filing narrow grooves with an angle more than 100.
- Second cut files are used to bring material to accurate size.
Chisel Types
- A half round nose chisel is used for cutting curved grooves.
- A web chisel is also known as a cross cut chisel.
- A diamond point chisel is used for making holes.
- A cape chisel is used for squaring material at the corners.
Grinding Operations
- If a grinder is run without truing, it will cause excessive vibration.
- If the rake angle of a chisel increases, it will remove more metal.
Instrument Identification
- The instrument marked 'X' is a marking gauge used for marking witness marks, locating the center of a hole, and making hole.
- The instrument is a combination square.
Hacksaw Operations
- If a hacksaw blade breaks, it should be replaced.
- If the cutting slows down, slow down the cutting and finish in the same line.
- If the cutting is not straight, start cutting from the opposite side on the same line.
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