Final Flashcards
Ice dam evidence includes _____, _____ , and _____ but not _____.
Icicles hanging from soffit, electric heating cable, siding/soffit discoloration
Not water running down rafters from peak
Dirty evaporator coil causes _____, _____, and _____ but not_____.
Restricted airflow
Inhibited heat transfer
Inadequate cooling
Not condenser icing up and damaged
Serious cracks are usually _____.
Horizontal
18” clearance from combustibles may be reduced to _____ “ when combustibles are covered with ____ ga sheet metal with a ____” ventilated air space.
6”
24 ga
1”
A laundry tub pump can handle _____, however a sump pump cannot.
lint
A ____ _____ steam system is commonly converted to hot water.
two pipe
Conventional shingle roofs show more deterioration on the _____ side.
South
Minimum slope for a type B vent is _____”.
1/4”
Application of ____ ____ ____ ____ is not allowed for gas leak detection.
Low level flame source
Brick chimney in older homes will sometimes have a bulge or bow that presents as a curved surface above the roof line which is caused by _____ _____.
Mortar expansion
Low pressure boiler pipes have pressures at _____ or less.
15 psi
Outward displacement and cracks in masonry or siding near the top of a wall where it meets the eaves is evidence of ____ ____ ____ ____.
Improper ceiling joist installation
A medium efficiency furnace with white or yellow deposits below the draft inducer fan is evidence of _____ _____ _____ _____.
moisture condensing in vent
Final decision to enter a crawl space is made by the _____ _____.
Home inspector
The ungrounded service entrance wires should connect to the _____ _____ of the main disconnect.
Line side
Overheated neutrals on multi wire branch circuits is not a common issue with ____ ____ ____ wiring.
Knob and tube
Plumbing drain pipe should have a slope between ____ “ and ____” per foot.
1/4” to 1/2” per foot.
Broken seals on double pane windows can lead to _____ _____.
Fungal growth
The main electrical disconnecting means should be where in relation to the service attachment or meter?
Adjacent to or on the opposite wall
The reason for not turning on water service to a house is because it is _____ _____ _____.
The sellers responsibility
The ground should slope away from the house by ____” over the first ____ ‘.
6” over the first 10’.
Horizontal cracks in brick veneer indicate _____ _____ _____.
sags in foundation
_____ commonly imitates clay.
Concrete
_____ _____ construction commonly includes both arches and lintels.
Solid brick
The size of service entrance conductors is a reliable way of measuring ____ ____.
Service amperage
Minimum clearance between wiring and vent connectors for gas appliances is _____”.
6”
___ vents are used with both gas and oil appliances.
L
A steam system typically has a _____ _____.
Pressure gauge
Warm liquid refrigerant becomes a cool liquid in the _____ _____ of a an air cooled a/c system.
Metering device
If two water heaters are installed in one house, _____ systems should have _____ _____ _____ to the water heaters.
Parallel
Similar pipe lengths
Horizontal fractures reduce the ability of the foundation to _____ _____ _____.
Resist soil pressure
EIFS is applied directly to a _____ board, is typically a ____ coat process, and uses a ___ ___ instead of wire lath.
Polystyrene
2
Fiberglass mesh
Most electric water heaters have ___ elements, the ____ element having priority, and it can be ____ to tell if one or the other is ____ ____.
2
Upper
Difficult
Burned out
The most serious implication of a leaking humidifier is _____ _____ _____ _____.
Rusting of heat exchanger.
Wood lintels need ____ ____ ____.
1-1/2” of endbearing
At roof-to-wall flashings, where wood siding is the counter-flashing, the siding should be kept _____ above the roof.
1-2”
The minimum head room for stairs in a home is roughly _____”.
80”
The maximum slope for a lot depends on soil type and other conditions, but in general the
maximum slope is ______.
1 in 2
Horizontal cracks in foundation walls are usually caused by _____, _____, and _____.
Soil pressure.
Improper backfilling.
Hydrostatic pressure.
Vertical joints every two-to-four feet in the bottom section of the foundation wall could be
evidence of _____.
Underpinning
Notches in beams should ___ ___ ___.
Not be present
Rusting lintels typically cause _____ _____, radiating out from the top corners of _____.
Horizontal cracks
windows
What is the likely cause of sag in roof sheathing where the trusses are 24 inches on center with a clear span of 36 feet?
Sheathing is too thin
Which of the following is the least common spacing for rafters, roof joists and ceiling joists?
36”
Roof sheathing is not required where a ____ ____ system is used with _____ _____.
Wood batten
Concrete tile
Batch feed waste disposers _____ a power switch near the unit, allowing it to be turned on and off very quickly.
Do not have
An electric oven uses which element for baking?
Lower
The typical life of a dishwasher is
8-15 years
Central-vacuum systems with a filter in the canister should discharge ____ or ____.
Inside or outside
What’s a typical problem with outside stairs?
Rise
You see a 2” PVC pipe running horizontally, it has to be supported every?
4’
A concrete block basement wall has a significant efflorescence. What is the most likely reason for this condition?
The soil has settled at the foundation.
What is a multi-wire branch circuit?
240-volt dryer
What is most likely to cause the greatest reduction of air flow in a flexible air duct?
A 90 degree bend in the duct.
What is the most likely result of insufficient air flow across the evaporator coil?
Ice forms on the evaporator coil
Which is not a factor when determining cooling load calculations?
Roof coverings
Which gas appliance may be in a bedroom?
99,000 BTU direct vented demand water heater.
Which is considered a radiant heating system?
Natural gas fired steam boiler.
In a cold climate, vapor retarder should be installed on which sides of the wall?
Side facing conditioned space
Under what condition may a thermal barrier be required?
Foam insulation installed in a crawl space with a gas furnace.
What is the definition of Relative humidity?
ratio of the partial pressure of water vapor to the equilibrium vapor pressure of water at a given temperature.
What are the components of a Geothermal system?
Heat pump unit, the liquid heat-exchange medium (open or closed loop, and the air delivery system (ductwork).
The Hartford loop in a steam system:
Is an equalizer that ensures that pressures are equal above and below the water line in the equipment.
A good sign there is a crack or hole in the heat exchanger is:
Irregular flame pattern when the blower is on.
Heat strips are measured in KW. Each strip is equal to approximately:
5 KW
A wood stove should have a pad under it that prevents sparks or embers from igniting a
combustible floor. How far should this pad extend out in front of the stove?
16”
What is the clearance for combustibles for a single-wall furnace vent?
6”
What is the minimum safe temperature in which to operate an air conditioner?
Hotter than 65 degrees
What is the MOST likely result of thermal expansion?
A clothes washing machine hose bursts.
The label on a 240-volt electric water heater indicates that the element wattage should be 4,500. The measured current is 14.6 amps. The most likely explanation is that
The wrong size element has been installed.
What is the BEST reason for a chimney to terminate above nearby obstruction?
Wind may force combustion products down the flue.
What is LEAST likely to be an approved pool access barrier?
A self-latching pedestrian gate
A double gate that allows access to the pool should be
Self-latching.
All fixed metal parts, cables, and raceways that are not separated from the pool by permanent barriers. If these items are within ____ feet of the pool wall (horizontally), they must be bonded.
5’
metal fence located within how many feet of a pool shell/spa should be bonded?
5’
What is MOST likely to be a problem when an emitter is located near the house _____.
Water will enter the crawl space or basement.
Nails that penetrate the roof sheathing are rusted. Some areas of roof sheathing present moisture stains and fungal growth. What is the MOST likely cause of these conditions?
Air leaking from the house to the attic.
Inspectors are pressured from all sides. List 6 parties for whom the inspector has an “obligation” toward (real or perceived).
Client, seller, listing agent, selling agent, inspectors’ boss/owner of inspection company.
A terrace is a
Raised patio
All of the following are types of retaining walls EXCEPT
Cavity
Slate roof with ribbons are?
Low grade slate
The bottom cap flashing for a masonry chimney has a single piece of metal let into the mortar joint and nailed to the shingle surface so that it won’t lift up. The flashing extends over the shingle surface approximately 4 inches. No leakage is evident inside the home. You tell your client that,
(c) “This is not an ideal installation as the nail holes may leak and movement of the roof deck relative to the chimney may pull the flashing out, but it is typical and acceptable.” Because the flashing hasn’t been pulled yet, you recommend monitoring, rather than replacement.
You put the leads of your meter in an electrical service panel box on opposite legs what are you looking for?
Voltage
Clamp on amp meter is on the load element wire of a water heater and reads 0, what does that indicate?
the E.W heater not on or broken element
Ohm’s Law, the relationship between voltage, current, and resistance in a simple circuit, states that
V - IR.
You observe #6-gauge copper wires entering a service box with two 60 A fuses inside. From the service box, #3 copper conductors lead to a newer combination panel that has a 100 A main breaker. You should report the service size as
60 amp
a distribution panel, a black wire and a red wire are connected to separate breakers that are four breakers apart, on the same bus bar. Both wires are part of the same cable. The neutral from the cable connects to the neutral bus. The potential problem with this
arrangement is that
The 240-V appliance may not operate properly.
(b) The breakers may not be linked.
(c) The neutral wire may overheat.
Type B class vent must terminate what distance from a side wall
8’
Circulating pump on boiler is located?
Above boiler
Pressure-reducing valve problems include all of the following EXCEPT
Connection to the supply plumbing.
The purpose of a Hartford loop is to:
Prevent water from leaking out of the boiler if the wet return leaks.
Gravity flow warm air furnace.
Robot man
The anticipator on a thermostat is used to
Stop the furnace early to reduce overheating of the house.
The liquid refrigerant line in a split-system air-conditioning system
Runs from the condenser to the expansion device.
What kind of a flow rate from a well is usually considered acceptable?
3 gpm
Definition of negligences?
Fail to act as another inspector under the same conditions.
