machining 3
Quiz by ruben medroso
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34 questions
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- Q1Which of the following do you need before you can safely operate a milling machine?Suitable training, a well-maintained machine, an engineering drawing and correct PPESuitable training, a well-maintained machine, an engineering drawing and glovesSuitable training, an iPad, an engineering drawing and correct PPESuitable training, a well-maintained machine, a sketch and correct PPE60s
- Q2Which of the following is dangerous when operating a lathe?Wearing safety glassesUsing guards when turning to view the operationStopping the machine using the emergency stop Using the diagram, which letter indicates the TailstockRemoving long stringy chips with bare hands60s
- Q3Using the diagram, which letter indicates the TailstockGHCD60s
- Q4Using the diagram, which group of letters indicates the main safety features of a lathe?B,F AND CC,F AND HB,F AND HA,B AND C60s
- Q5Using the diagram, which letter indicates the Carriage?CHED60s
- Q6Which two of the following are good working practices?Wearing loose sleeved overalls,Leaving waste bins in walkwaysStoring oily rags in overall pocketsImmediately cleaning up oil or coolant spillage,Disposing of waste in the correct mannerRemoval of swarf/chips from lathe tray with bare hands60s
- Q7Which of the following can be used to protect a finished diameter when working on a lathe?Emery clothBrass sheetPaperTin sheet60s
- Q8What is the reason for clamping the work piece in a chuck/work holding device?To be held securely while revolving at the same time as being cutTo enable the work to rotate at high speedsTo crush or damage the workTo be able to leave the machine running unattended60s
- Q9Over tightening the work-piece in the chuck hard jaws can cause:Good surface finishIndentations or distortion to the work pieceAccurate dimensionsThe ability to run at higher speeds60s
- Q10If you have to mill a slot 20mm long and the tolerance is +/- 0.1mm what is the maximum length of slot allowed?20mm20.1mm19.9mm20.01mm60s
- Q11When taking roughing cuts, what is the effect on tool life?The tool leaves a better surface finish and has minimal tool wearTool life is increasedNo effectTool life is reduced60s
- Q12What is the name given to the type of tool that would be used for general turning and facing?Right hand knife edge toolUndercut toolKnurling toolChamfer tool60s
- Q13Which of the following statements best describes a reason for increased tool wear when milling a hard material?The feed rate is too lowUsing coolantPoor lightingFeed rate is too high60s
- Q14How is feed rate measured on a lathe?Millimeter per secondMillimeter per revolutionMeter per revolutionMillimeter per minute60s
- Q15How is feed rate measured on a Milling machine?meter per revolutionMillimeter per revolutionMillimeter per minutekilometer per revolution45s
