The abbreviation ASTM stands for _____.

The abbreviation ASTM stands for _____.
 
  a. American Society of Testing and Materials
  b. Alliance of Steel Truss Manufacturers
  c. American Specification Testing Manual
  d. Allied Specialty Tool Makers

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[Ques. 2] Which of the following is not a contour symbol used on the welding symbol?
 
  a. Concave
  b. Flush
  c. Depressed
  d. Convex

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[Ques. 3] Lines on drawings used to indicate an area that has been cut away and shown in a section view are called
  _____.
 
  a. extension lines
  b. break lines
  c. phantom lines
  d. cutting plane lines

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[Ques. 4] A dimension line is drawn at right angles between _____.
 
  a. object lines
  b. extension lines
  c. center lines
  d. leader lines

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[Ques. 5] Nationally Recognized Testing Laboratories _____.
 
  a. annually certify licensed electricians
  b. establish safety standards for electrical equipment
  c. test electrical wiring in public buildings
  d. make unannounced inspections at electrical equipment factories