C-39 ROOFING TRADE PRACTICE
TEST 2 QUESTIONS 100% ANSWERED
2025
, An asphalt-modified roof is: - ANSWERSTorch-applied
A roof has a 7' run and 8" per unit rise. What is the total rise at the ridge? -
ANSWERS56"
Which of the following is NOT used as a weathering surface in single-ply roofing? -
ANSWERSMica
If you know the lengths of two sides of a right angle, can you figure the length of the
third side? - ANSWERSYes, the third side squared = a2 + b2
The maximum heating temperature for steep asphalt is: - ANSWERS525*F
What is the flash point of a coal-tar pitch kettle? - ANSWERS240-280*F
What is the name of the thick, black, gummy plastic used for making temporary repairs
to damp roof surfaces? - ANSWERSWetpatch
Where are sump drains usually installed? - ANSWERSWood decks
Which would be used to strengthen the eaves of a gable roof? - ANSWERSFascia
For spans less than 10ft, what is the minimum size lumber that may be used with a
roofing jack? - ANSWERS2" x 6"
Cal/OSHA may impose _______ concerning machinery. - ANSWERSFines and/or
restraining orders
Trusses should be spaced _______ apart for tile roofs. - ANSWERS2'-6"
Which of the following does not influence the exposure of wood shingles? -
ANSWERSType of sheathing
Which of the following is least hazardous to your health? - ANSWERSHypalon
What is NOT a requirement when you reroof over a built-up roof? - ANSWERSThe deck
must be torn up
Which of the following is not a correct statement about PVC sheet-laying adhesives? -
ANSWERSThe overlap should be 10"
The main purpose of a base sheet is to provide: - ANSWERSA welding process
TEST 2 QUESTIONS 100% ANSWERED
2025
, An asphalt-modified roof is: - ANSWERSTorch-applied
A roof has a 7' run and 8" per unit rise. What is the total rise at the ridge? -
ANSWERS56"
Which of the following is NOT used as a weathering surface in single-ply roofing? -
ANSWERSMica
If you know the lengths of two sides of a right angle, can you figure the length of the
third side? - ANSWERSYes, the third side squared = a2 + b2
The maximum heating temperature for steep asphalt is: - ANSWERS525*F
What is the flash point of a coal-tar pitch kettle? - ANSWERS240-280*F
What is the name of the thick, black, gummy plastic used for making temporary repairs
to damp roof surfaces? - ANSWERSWetpatch
Where are sump drains usually installed? - ANSWERSWood decks
Which would be used to strengthen the eaves of a gable roof? - ANSWERSFascia
For spans less than 10ft, what is the minimum size lumber that may be used with a
roofing jack? - ANSWERS2" x 6"
Cal/OSHA may impose _______ concerning machinery. - ANSWERSFines and/or
restraining orders
Trusses should be spaced _______ apart for tile roofs. - ANSWERS2'-6"
Which of the following does not influence the exposure of wood shingles? -
ANSWERSType of sheathing
Which of the following is least hazardous to your health? - ANSWERSHypalon
What is NOT a requirement when you reroof over a built-up roof? - ANSWERSThe deck
must be torn up
Which of the following is not a correct statement about PVC sheet-laying adhesives? -
ANSWERSThe overlap should be 10"
The main purpose of a base sheet is to provide: - ANSWERSA welding process
