National 3 Flashcards
When testing a GFCI receptacle you should _____ any appliances using the receptacle.
Unplug
On steep roofs, exposed fasteners are a sign of ____ ____.
Improper installation
To verify the presence of step flashing on a roof would be accomplished by ____ ____ ____ adjacent to the head wall or chimney.
lifting the shingles
Foundation irrigation can prevent ____ ____.
basement leakage
A horizontal crack in a foundation reduces the ability to ____ ____ ____.
resist soil pressure
Water hammer can be reduced by installing _____ _____ _____ at the ends of lines.
12” vertical extensions
Footings may move if the ____ ____ is _____.
Soil below is disturbed
____, ____ and ____ are asphalt based products. ____ is a silicone product.
Roofing cement
Asphalt cement
Plastic cement
Caulk
The _____ element of a water heater has priority.
Upper
A leaking humidifier can cause ____ of the ____ ____.
Rusting of the heat exchanger
Insulating the crawl space floor _____ cause the floors to be more comfortable.
Will not
Irregular cracks in shingles may be a sign of a ____ ____ which could shorten _____.
manufacturing defect
lifespan
Do not recommend that cracks in masonry brick be _____.
Caulked
Obsolete service boxes typically exhibit _____ _____.
Exposed terminals
Masonry veneer walls may be _____.
brittle
Home inspectors _____ lift tiles of suspended ceilings for further inspection.
may
Gravity fed, warm air furnaces have a ____ ____ ____ switch.
High temperature limit
Leakage at the foundation wall conduit hole could cause _____ _____ _____.
Rusting of panel
A single ply roofing system that consists of a base and cap sheet is _____ _____.
Modified bitumen
The presence of 2 layers of ____ ____ under a built up roof, could mean that it was built over a flat roof.
drip edge
When lowering a basement floor, lateral support will be lost if excavating to the _____ _____ _____ _____.
Bottom of the footing
____ ____ are not dead loads.
Snow loads
_____ _____ are continuous footings around the perimeter of the slab.
Spread footings
_____ is the best soil type for building homes upon.
Gravel