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
Generally, maximum slope for a residential lot is _____.
1/2
Frost heave _____ be caused by raising exterior grade height.
Cannot
Typical corrections for bowing bilging or leaning foundation walls include _____, _____, or ____, but not _____.
Adding buttresses to the interior
Building a separate foundation wall on the interior
Building a separate exterior wall against the foundation
Horizontal steel beams/channels
Settlement cracks are likely with houses built upon ____ land.
reclaimed
Vertical joints every 2-4 feet at the bottom of a foundation wall is evidence of ______.
Underpinning
Beams may bear upon concrete block walls if the top ____ ____ of the blocks are ____ ____ ____
7 inches
Filled with concrete
Beams should not be _____.
Notched
Notched joists will sometimes _____ at the corner of the notch.
Crack
It is best practice to construct partition walls or non-load bearing walls _____ to joists below.
Perpendicular
Sheathing supports _____, stiffens _____ to prevent _____, and aids the _____ _____.
siding
walls
racking
air barrier
Steel lintels require ____ inches of end bearing.
6
If attic air is cold and temperature _____, moist air will _____ more quickly.
rises
condense
The span of a rafter is defined as the horizontal _____, from one _____ to the other.
projection
support
Horizontal members supporting the midspan of rafters are called _____.
purlins
One way to prevent rafters from sagging is to install ______ ______.
collar ties
Rafters, ceiling joists, and roof joists are commonly spaced at ____, ____, ____, and ____ on center.
12, 16, 20, 24
____ plywood is known to be defective and will _____ _____ or _____ and presents a white _____ _____
FRT
prematurely deteriorate
delaminate
Powder substance
Truss webs are in _____ or _____.
Compression or tension
Rafters at hips and valleys are called _____ _____.
jack rafters
Batch feed waste disposers are _____ to have a shutoff switch nearby.
not required
Electric ovens use the ____ element for baking.
lower
An electric oven reaches _____ degrees during the self cleaning process function.
900° F
Useful life of a dishwasher is ____ to _____ years.
8-15
A dishwasher may not drain properly because the _____ may be faulty.
timer
_____ are compatible with food waste disposer.
Bones
Central vacuum systems with a filter should discharge _____ or _____.
Inside or outside
Weak suction on a central vacuum system is typically a symptom of a _____, _____, or _____.
full canister
dirty filter
operator
The best way to determine if a home has EIFS siding is to _____.
remove receptacle covers
A common problem with exterior stairs is improper _____.
rise
Among the common insulation types, _____ will burn quicker than most.
cellulose
Horizontal 2” pvc pipe must be supported every _____ feet.
4
2 wire systems should be reported as _____, and it should be noted that _____.
inspected
2 wire systems are outdated and not as safe as 3 wire systems.
The minimum and maximum distances for switches and outlets near a bathtub are _____.
non-existent
Both _____ and _____ should be inspected for overhead garage door openers.
Emergency manual release
Door operation
Open stairs that allow the passage of a 4” sphere should be reported as _____.
Opening between treads too tall
Curtains drains are a type of _____ _____.
yard drainage
