C 39 ROOFING TRADE TEST 1 AND TEST 2 (COMPLETE TESTS) |
QUESTIONS AND CORRECT ANSWERS| GUARANTEED PASS
What type of fire extinguisher should be used to put out an asphalt kettle fire?
dry chemical
If steel decks must be spot-welded to structural steel, puddle welds _____ or
larger in diameter are recommended. They should be made on washers and
spaced at least _____ on center.
1/2 inches ... 12 inches
Acid flux residue can be removed with what liquid?
5-10% solution of washing soda
The purpose of installing a cant strip is to support the
base flashing
The maximum deflection allowed for a steel deck is:
1/4 inch per 100 feet
Flat seam roofs of slight pitch should be divided by expansion battens into
sections not exceeding:
30 ft square
,Thermosetting insulation is compacted in two layers if the total thickness is
greater than:
6 inches
When installing composite shingles on a roof with a slope of less than 3:12, a
common practice is to:
use double layers of 15 lb felt for an underlayment
When installing sheet-laying adhesives, the overlap should be:
10"
When joining 22 oz copper sheets, which procedure would produce the
strongest joint?
sheets are lapped, riveted, and soldered
Your crew is on the roof welding with materials containing beryllium and there
is a strong wind. According to Cal/OSHA, what must you do?
require crew to wear supplied-air respirators
0.020" thick copper approximately equals:
24 gage, B&S
, What type of roof is recommended over thermosetting insulative fills?
aggregate
Which tool do you use to measure the weather exposure on all types of shingles?
roofing hatchet
What is the lowest slope allowed for a wood shake roof with 2 layers of 15 lb
felt?
3:12
When it is necessary to install dissimilar metals, you can place sheet lead or
building paper between the metals or paint with:
asphaltum paint
Pitch pockets or pitch boxes:
are not recommended because they require extensive maintenance
QUESTIONS AND CORRECT ANSWERS| GUARANTEED PASS
What type of fire extinguisher should be used to put out an asphalt kettle fire?
dry chemical
If steel decks must be spot-welded to structural steel, puddle welds _____ or
larger in diameter are recommended. They should be made on washers and
spaced at least _____ on center.
1/2 inches ... 12 inches
Acid flux residue can be removed with what liquid?
5-10% solution of washing soda
The purpose of installing a cant strip is to support the
base flashing
The maximum deflection allowed for a steel deck is:
1/4 inch per 100 feet
Flat seam roofs of slight pitch should be divided by expansion battens into
sections not exceeding:
30 ft square
,Thermosetting insulation is compacted in two layers if the total thickness is
greater than:
6 inches
When installing composite shingles on a roof with a slope of less than 3:12, a
common practice is to:
use double layers of 15 lb felt for an underlayment
When installing sheet-laying adhesives, the overlap should be:
10"
When joining 22 oz copper sheets, which procedure would produce the
strongest joint?
sheets are lapped, riveted, and soldered
Your crew is on the roof welding with materials containing beryllium and there
is a strong wind. According to Cal/OSHA, what must you do?
require crew to wear supplied-air respirators
0.020" thick copper approximately equals:
24 gage, B&S
, What type of roof is recommended over thermosetting insulative fills?
aggregate
Which tool do you use to measure the weather exposure on all types of shingles?
roofing hatchet
What is the lowest slope allowed for a wood shake roof with 2 layers of 15 lb
felt?
3:12
When it is necessary to install dissimilar metals, you can place sheet lead or
building paper between the metals or paint with:
asphaltum paint
Pitch pockets or pitch boxes:
are not recommended because they require extensive maintenance
