Free Roofing (C-39) practice test

  • 10 questions
  • ~5 minutes
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10 questions from the Peerless Institute C-39 Roofing exam. Covers underlayment requirements, flashing details, slope minimums, and fastener patterns.

0 of 10 answered
  1. 1The first course of roll roofing should be applied so that it overhangs the eaves and rakes by at least 1/4 inch but not more than:

  2. 2In getting ready for repairing a split, the roofer should clear the area at least 12 inches on each side of the split of dirt, dust and debris. The minimum area that should be cleared at each end of the split is:

  3. 3For spans under 10 feet, the lumber used on roof brackets must not be less than:

  4. 4For three-sectioned extension ladders, there shall be an overlap between the sections of not less than: (CAL/OSHA Section 8 1678-b)

  5. 5In accordance with Code, the effective venting area for smoke and heat venting must be at least 16 sq. ft., with no dimension less than how many feet?

  6. 6Metal ladders should be at least ___ feet from 220 volt electrical wiring.

  7. 7A No. 1 wood shingle roof with shingles 24" long and a slope of 3 in 12 the a maximum exposure recommended is:

  8. 8Warning lines consisting of rope or wire, flagged with highly visible material hanging from the warning lines every 6 feet, 34 to 45 inches high shall be placed no closer than _____ from the edge of the roof, when felt laying machines are being used.

  9. 9Corrugated galvanized roofing sheets are produced with 2-1/2 inch corrugations in ____ gauge or heavier sheets.

  10. 10Gravel used with coal-tar pitch should be hard and opaque and not greater than 3/8" in size. The slag used should be from _____ to _____ in size.