National 3

Question 1

When testing a GFCI receptacle you should _____ any appliances using the receptacle.

Answer 1

Unplug

Question 2

On steep roofs, exposed fasteners are a sign of ____ ____.

Answer 2

Improper installation

Question 3

To verify the presence of step flashing on a roof would be accomplished by ____ ____ ____ adjacent to the head wall or chimney.

Answer 3

lifting the shingles

Question 4

Foundation irrigation can prevent ____ ____.

Answer 4

basement leakage

Question 5

A horizontal crack in a foundation reduces the ability to ____ ____ ____.

Answer 5

resist soil pressure

Question 6

Water hammer can be reduced by installing _____ _____ _____ at the ends of lines.

Answer 6

12” vertical extensions

Question 7

Footings may move if the ____ ____ is _____.

Answer 7

Soil below is disturbed

Question 8

____, ____ and ____ are asphalt based products. ____ is a silicone product.

Answer 8

Roofing cement
Asphalt cement
Plastic cement
Caulk

Question 9

The _____ element of a water heater has priority.

Answer 9

Upper

Question 10

A leaking humidifier can cause ____ of the ____ ____.

Answer 10

Rusting of the heat exchanger

Question 11

Insulating the crawl space floor _____ cause the floors to be more comfortable.

Answer 11

Will not

Question 12

Irregular cracks in shingles may be a sign of a ____ ____ which could shorten _____.

Answer 12

manufacturing defect
lifespan

Question 13

Do not recommend that cracks in masonry brick be _____.

Answer 13

Caulked

Question 14

Obsolete service boxes typically exhibit _____ _____.

Answer 14

Exposed terminals

Question 15

Masonry veneer walls may be _____.

Answer 15

brittle

Question 16

Home inspectors _____ lift tiles of suspended ceilings for further inspection.

Answer 16

may

Question 17

Gravity fed, warm air furnaces have a ____ ____ ____ switch.

Answer 17

High temperature limit

Question 18

Leakage at the foundation wall conduit hole could cause _____ _____ _____.

Answer 18

Rusting of panel

Question 19

A single ply roofing system that consists of a base and cap sheet is _____ _____.

Answer 19

Modified bitumen

Question 20

The presence of 2 layers of ____ ____ under a built up roof, could mean that it was built over a flat roof.

Answer 20

drip edge

Question 21

When lowering a basement floor, lateral support will be lost if excavating to the _____ _____ _____ _____.

Answer 21

Bottom of the footing

Question 22

____ ____ are not dead loads.

Answer 22

Snow loads

Question 23

_____ _____ are continuous footings around the perimeter of the slab.

Answer 23

Spread footings

Question 24

_____ is the best soil type for building homes upon.

Answer 24

Gravel

Question 25

Generally, maximum slope for a residential lot is _____.

Answer 25

1/2

Question 26

Frost heave _____ be caused by raising exterior grade height.

Answer 26

Cannot

Question 27

Typical corrections for bowing bilging or leaning foundation walls include _____, _____, or ____, but not _____.

Answer 27

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

Question 28

Settlement cracks are likely with houses built upon ____ land.

Answer 28

reclaimed

Question 29

Vertical joints every 2-4 feet at the bottom of a foundation wall is evidence of ______.

Answer 29

Underpinning

Question 30

Beams may bear upon concrete block walls if the top ____ ____ of the blocks are ____ ____ ____

Answer 30

7 inches Filled with concrete

Question 31

Beams should not be _____.

Answer 31

Notched

Question 32

Notched joists will sometimes _____ at the corner of the notch.

Answer 32

Crack

Question 33

It is best practice to construct partition walls or non-load bearing walls _____ to joists below.

Answer 33

Perpendicular

Question 34

Sheathing supports _____, stiffens _____ to prevent _____, and aids the _____ _____.

Answer 34

siding walls racking air barrier

Question 35

Steel lintels require ____ inches of end bearing.

Answer 35

6

Question 36

If attic air is cold and temperature _____, moist air will _____ more quickly.

Answer 36

rises condense

Question 37

The span of a rafter is defined as the horizontal _____, from one _____ to the other.

Answer 37

projection support

Question 38

Horizontal members supporting the midspan of rafters are called _____.

Answer 38

purlins

Question 39

One way to prevent rafters from sagging is to install ______ ______.

Answer 39

collar ties

Question 40

Rafters, ceiling joists, and roof joists are commonly spaced at ____, ____, ____, and ____ on center.

Answer 40

12, 16, 20, 24

Question 41

____ plywood is known to be defective and will _____ _____ or _____ and presents a white _____ _____

Answer 41

FRT prematurely deteriorate delaminate Powder substance

Question 42

Truss webs are in _____ or _____.

Answer 42

Compression or tension

Question 43

Rafters at hips and valleys are called _____ _____.

Answer 43

jack rafters

Question 44

Batch feed waste disposers are _____ to have a shutoff switch nearby.

Answer 44

not required

Question 45

Electric ovens use the ____ element for baking.

Answer 45

lower

Question 46

An electric oven reaches _____ degrees during the self cleaning process function.

Answer 46

900° F

Question 47

Useful life of a dishwasher is ____ to _____ years.

Answer 47

8-15

Question 48

A dishwasher may not drain properly because the _____ may be faulty.

Answer 48

timer

Question 49

_____ are compatible with food waste disposer.

Answer 49

Bones

Question 50

Central vacuum systems with a filter should discharge _____ or _____.

Answer 50

Inside or outside

Question 51

Weak suction on a central vacuum system is typically a symptom of a _____, _____, or _____.

Answer 51

full canister dirty filter operator

Question 52

The best way to determine if a home has EIFS siding is to _____.

Answer 52

remove receptacle covers

Question 53

A common problem with exterior stairs is improper _____.

Answer 53

rise

Question 54

Among the common insulation types, _____ will burn quicker than most.

Answer 54

cellulose

Question 55

Horizontal 2” pvc pipe must be supported every _____ feet.

Answer 55

4

Question 56

2 wire systems should be reported as _____, and it should be noted that _____.

Answer 56

inspected 2 wire systems are outdated and not as safe as 3 wire systems.

Question 57

The minimum and maximum distances for switches and outlets near a bathtub are _____.

Answer 57

non-existent

Question 58

Both _____ and _____ should be inspected for overhead garage door openers.

Answer 58

Emergency manual release Door operation

Question 59

Open stairs that allow the passage of a 4” sphere should be reported as _____.

Answer 59

Opening between treads too tall

Question 60

Curtains drains are a type of _____ _____.

Answer 60

yard drainage