What is the minimum number of workers required to complete tasks using a laser level?

What is the minimum number of workers required to complete tasks using a laser level?
 
  A) 1 B) 2 C) 3 D) 4

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[Ques. 2] Framing steel roof systems requires the same number and type of fasteners as framing roof systems with dimensional lumber.
 
  Indicate whether the statement is true or false

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[Ques. 3] A leveling rod marked with the ________ is used by surveyors.
 
  A) Metric system B) Engineer's scale
  C) Imperial system D) U. S. customary feet and inches

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[Ques. 4] A kips rating is the ________ of the framing steel.
 
  A) Channel depth B) Yield strength C) Steel thickness D) Steel width

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[Ques. 5] During the setup of GTAW equipment, what must be connected to the workpiece?
 
  A) The workpiece lead B) The primary disconnect
  C) The shielding gas nozzle D) The tungsten electrode lead