Roofing MCQs Quiz Multiple Choice Questions & Answers Page 6

251. Before applying roofing over prestressed concrete decks many manufacturers recommend the installation of

1. 2,500 psi concrete fill
2. 1/2 inch thick protection board
3. 3 inches of 2,500 psi concrete
4. 2 inches of 2,500 psi concrete

252. Before re-roofing, all large cracks, knotholes, loose knots and resinous areas in the deck should be?

1. Covered with sheet metal patches nailed to the deck
2. Filled and sealed
3. Cleaned out and sealed
4. Addressed

253. Billy Ray is installing 24 inch tapersplit shakes. Billy Ray should use

1. Stainless steel 5d box nails 1 3/4 inches long
2. Blue 5d box nails 1 3/4 inches long
3. Steel wire 5d common nails 1 3/4 inches long
4. Bright 5d box nails 1 3/4 inches long

254. Cap flashing should extend into the mortar joint a minimum of how many inches?

1. 1
2. 1.5
3. 2
4. 2.5

255. Closed-cut valley work requires the end shingle

1. Be dubbed
2. Be laced
3. Extend beyond the valley centerline 12 inches
4. Be woven

256. Cold-applied bitumen emulsions should be applied at a rate of how many gallons per square?

1. 1
2. 2
3. 3
4. 4

257. Cold-applied bitumens should be applied at a rate of how many gallons per square?

1. 1
2. 2
3. 3
4. 4

258. Commercial standard slates up to 18 inches long should normally be fastened with penny nails.

1. 12
2. 10
3. 6
4. 3

259. Continuous flashing over unsealed underlayment requires

1. mortar installation at the eaves
2. Flashing over unsealed underlayment
3. Flashing under unsealed underlayment
4. Asphalt barriers be installed with lead skirts

260. Corrosion resistant drip edges should extend how many inches back from the edge?

1. 1
2. 2
3. 3
4. 4

261. Corrosion resistant should be used when blocking is not used.

1. Staples
2. Galvanized nails
3. Edge clips
4. Termination bars

262. counter batten system of 1 X 2 should be mounted vertically

1. Every 3 feet
2. 24 inches on center
3. 32 inches on center
4. 16 inches on center

263. Cover all large cracks and resinous areas with

1. Sheet metal
2. 30 pound felt
3. 90 pound felt
4. 2 layers of 30 pound felt

264. CPE roofing may be used with all of the following except

1. Mechanical screws
2. Heat-welds
3. Coal-tar pitch
4. Stainless steel nails

265. Dead level asphalt or pitch can be heated safely to degrees.

1. 400
2. 450
3. 475
4. 500

266. Do not heat asphalt to within degrees Fahrenheit of the flash point.

1. 50
2. 40
3. 35
4. 25

267. Dont apply aggregate surfacing to roofs with slopes over inches per foot.

1. 2
2. 3
3. 4
4. 5

268. Drip edge should be fastened with nails a maximum of inches on center.

1. 12
2. 10
3. 8
4. 6

269. Drip edges should be made of corrosion resistant material and extend inches back from the roof edge.

1. 3
2. 6
3. 9
4. 36

270. During the application of slate care should be taken to ensure proper jointing

1. During the transit stage of the job
2. Between 3 and six inches as near the bottom as possible
3. Between 3 and six inches as near the top as
4. Not less than 3 inches and as near the center as possible

271. Eave tile should be set in

1. Adhesive
2. Mortar
3. Grout
4. Asphalt

272. Edge flashing on slopes less than 1 in 12 requires priming on

1. The bottom side only
2. Both sides
3. The top side only
4. The contact side only

273. EPDM membranes should never be installed with which of the following?

1. Cold process
2. Heat seal
3. Plastic cement and dead level
4. Ballast

274. Existing gypsum decks when re-roofed require fasteners.

1. Self-locking
2. Cap or Tape
3. Annular shank
4. Nail-tite Type A

275. Expansion joints may be installed in all of the following except?

1. The first third of the roof
2. The last third of the roof
3. In a valley
4. In the middle of the roof

276. Flat and steep asphalts can be heated safely to degrees Fahrenheit.

1. 400 and 437
2. 437 and 450
3. 450 and 475
4. 475 and 500

277. For open valley application trimming off corners of shingles is referred to as

1. Skimping
2. Chalking
3. Dubbing
4. Sizing