Prior to leak testing, and after the fitting is finger-tight, compression fitting nuts should be ...

Prior to leak testing, and after the fitting is finger-tight, compression fitting nuts should be initially tightened
  _____.
 
  a. one-quarter turn
  b. one-half turn
  c. one full turn
  d. two full turns

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[Ques. 2]
  The voltage drop across the parallel resistors shown in the figure above is _____.
 
  a. 17.3 volts
  b. 20.7 volts
  c. 62.1 volts
  d. 100 volts

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[Ques. 3] When soldering 1-1/2 tubing in a horizontal position, you should _____.
 
  a. feed the solder from a single point
  b. start feeding solder at the top and work down
  c. start feeding solder near the bottom and work up
  d. turn the assembly to the vertical position first

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[Ques. 4] Which of these actions is taken to prevent over-pressurizing the torch hoses during equipment setup?
 
  a. Opening the tank valve slowly.
  b. Turning the regulator adjusting screw counterclockwise (out).
  c. Turning the regulator adjusting screw clockwise (in).
  d. Installing flashback arrestors.

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[Ques. 5] When copper is being brazed to steel _____.
 
  a. the technique is identical to brazing copper to copper
  b. more heat is applied to the steel fitting
  c. a filler metal with a high phosphorus content is best
  d. a filler metal with a high silver content is used