When is it acceptable to interpolate between gradations It i
     When is it acceptable to interpolate between gradations?  It is never acceptable.  When you cannot find an instrument discriminating enough.  If the instrument available is more discrimination than the measurement requires.  When the instrument with sufficient discrimination has a rounded edge.  Which of the following tools does the following statement represent? \"A tool used for transfer of measurement only\"  calipers  combination square  depth gauge  steel rule   
  
  Solution
37) C) If the instrument available is more discriminating than the measurement requires
 38) B) Combination square
 39) C) Parallax error
 40) C)
 41) a)
 42) b)
 43) b)

