Points plotted by Cartesian coordinates are:

Points plotted by Cartesian coordinates are:
 
  A) Are always positive or always negative
  B) Are plotted by their linear distance from the origin
  C) Defined in angular terms
  D) Are plotted by circular arc dimensions

 Q. 2

In the final finish grinding on a hardened workpiece, the traverse rate should be reduced to about how much of a grinding wheel width per workpiece revolution?
 
  A) Three-fourths B) One-eighth C) One-half D) One-fourth

 Q. 3

Wheel speed in center-type cylindrical grinding is in the range of 5500 to 6500 SFPM. Work speeds, for most part will probably be in the range of ________ SFPM.
 
  A) 10 to 50 B) 50 to 100 C) 100 to 150 D) 150 to 200