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sila sila
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6 years ago
Using RPM=4CS/D, how fast should a 1/2 in. drill turn when drilling mild steel in a drill press if CS is 90 SFPM?
 
  A) 720 RPM B) 360 RPM C) 180 RPM D) 90 RPM

 Q. 2

An arbor press designed with a rack and pinion is what type?
 
  A) Gear driven B) Mechanical
  C) Hydro-mechanical D) Hydraulic

 Q. 3

Two basic principles always taken into consideration by persons familiar with the proper use of shop pressers are:
 
  A) Care not to overload the press by tying to press an oversized part and personal safety
  B) Personal safety and the care of the workpiece to prevent it from being damaged
  C) Care should be taken not to press too fast, as this creates friction which produces heat
  D) Always use the largest press available for every job as the part being pressed might stick half way through with a small press. Personal safety
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Treygang5Treygang5
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6 years ago
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sila Author
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#2
6 years ago
Great answers, all of them were right
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