C-39 ROOFING TRADE ONLINE PRACTICE TEST 1 AND 2
(LATEST VERSIONS 2025) | ALL QUESTIONS AND CORRECT
ANSWERS | ALREADY GRADED A+ | VERIFIED ANSWERS
An asphalt-modified roof is:
answers: Torch-applied
A roof has a 7' run and 8" per unit rise. What is the total rise at the ridge?
answers: 56"
Which of the following is NOT used as a weathering surface in single-ply roofing?
answers: Mica
If you know the lengths of two sides of a right angle, can you figure the length of
the third side?
answers: Yes, the third side squared = a2 + b2
The maximum heating temperature for steep asphalt is:
answers: 525*F
What is the flash point of a coal-tar pitch kettle?
answers: 240-280*F
What is the name of the thick, black, gummy plastic used for making temporary
repairs to damp roof surfaces?
, answers: Wetpatch
Where are sump drains usually installed?
answers: Wood decks
Which would be used to strengthen the eaves of a gable roof?
answers: Fascia
For spans less than 10ft, what is the minimum size lumber that may be used with a
roofing jack?
answers: 2" x 6"
Cal/OSHA may impose _______ concerning machinery.
answers: Fines and/or restraining orders
Trusses should be spaced _______ apart for tile roofs.
answers: 2'-6"
Which of the following does not influence the exposure of wood shingles?
answers: Type of sheathing
Which of the following is least hazardous to your health?
answers: Hypalon
(LATEST VERSIONS 2025) | ALL QUESTIONS AND CORRECT
ANSWERS | ALREADY GRADED A+ | VERIFIED ANSWERS
An asphalt-modified roof is:
answers: Torch-applied
A roof has a 7' run and 8" per unit rise. What is the total rise at the ridge?
answers: 56"
Which of the following is NOT used as a weathering surface in single-ply roofing?
answers: Mica
If you know the lengths of two sides of a right angle, can you figure the length of
the third side?
answers: Yes, the third side squared = a2 + b2
The maximum heating temperature for steep asphalt is:
answers: 525*F
What is the flash point of a coal-tar pitch kettle?
answers: 240-280*F
What is the name of the thick, black, gummy plastic used for making temporary
repairs to damp roof surfaces?
, answers: Wetpatch
Where are sump drains usually installed?
answers: Wood decks
Which would be used to strengthen the eaves of a gable roof?
answers: Fascia
For spans less than 10ft, what is the minimum size lumber that may be used with a
roofing jack?
answers: 2" x 6"
Cal/OSHA may impose _______ concerning machinery.
answers: Fines and/or restraining orders
Trusses should be spaced _______ apart for tile roofs.
answers: 2'-6"
Which of the following does not influence the exposure of wood shingles?
answers: Type of sheathing
Which of the following is least hazardous to your health?
answers: Hypalon