Mock Exam Flashcards
An inspector enters a vacant home to inspect it and notices a strong smell of gas.what should he do?
Vacate The home and call all appropriate people
What was added to furnaces in 1980 to increase efficiency:
Two heat exchangers
What material is not a proper flashing material : A.copper B.galvanized C.aluminum D.tar paper
D.tar paper
A three prong receptacle requires
Grounding conductor
The neutral wire:
Returns 110v to ground
Ice forming on the A/C evaporator coil is caused by:
Not enough air
The exhaust vent of a gas dryer:
Must be vented to the outside
Deck built 14” off ground around a home
Requires no railing
In an electrical sub panel,the neutral wire must be
Both separated from ground and isolated
Trusses :
Have two bearing points
You see a return air register in the side of a furnace:
Can cause flue gases to be drawn into supply air.
Mid-efficiency furnace
No draft diverter required
What is the proper exposure for a 24” Shake
10”
Safety glazing is not required in:
Greater than 10 sqft over 18” above floor
Stucco hairline cracks appear every 16”. The cause can be attributed to:
Nailing drywall on inside
On a tile roof what is the proper way to flash around the chimney
Counter and pan flashing
You are inspecting a home built in 1950 and see a silver wire to a branch circuit. This would be:
Tin coated copper
Moisture accumulates in poorly vented attic because
Warm air rises and condenses in the attic
What is the proper exposure for an 18” wood shake
7 1/2”
You view a type “B” vent in an attic. Insulation is falling in the open chase.what do you report
A. What you see
B.recommend a fire stop be installed
C.recommend they remove insulation from chase
D. All The above
D. All the above
What determines the size of flue
Opening of fire place
Metal chimney cap function does not include: A. Keeping animals out B. Keeping out rain C. Keeping debris out D. Reducing draw of exhaust gases
D. Reducing draw of exhaust gasses
Cross bridging on floor joists:
Keeps joists from twisting
Potential problems with roof sheathing is: A. 3/8" plywood used B. Ends touching each other C. Plywood placed parallel to rafters D. All the above
D. All the above
Which of the following does not require a dedicated circuit: A. Kitchen counter B. Bathroom C. Dining room D. Central heating
C. Dining room
Wood shakes are most likely to wear And expose felt paper at:
Key way
How far off the floor does a furnace’s source of ignition have to be in a garage:
18”
Flat roof is used as an observation deck. Plumbing vent must extend:
7 feet
An inspector is required to inspect at least :
One window in each room
A 12’ long 2x8 floor joist has a notch. Where would The notch not be ok:
In the middle
A properly constructed retaining wall should:
Be back filled with gravel
A horizontal crack In a brick wall follows the gutter line. What is the cause:
Rafter spread
In EIFS construction doors and windows can properly sealed by:
Backer rod and sealant
A gas water heater is not allowed in:
Storage closet
Each zone valve for a hydronic heating unit needs:
Thermostat
Sumo pump runs even though is has been dry( no rain) for a long time. What is the cause
Float stuck
How much space is required between a double walled “B” vent and chase:
1”
A new electric dryer receptacle A. May have 4 wires to it B. Just be a dedicated circuit C. May be 120 volts D. All above
D. All above
If the exterior service piping has been converted to plastic, what is required for electrical grounding:
Provide another grounding means
The maximum number of disconnects to shut off an electrical service is:
6
Which of the following is not an acceptable grounding means :
Underground gas pipe
An electrical panel with a split busbar:
Has more than one shut off
What insulation is/was considered a safety hazard:
UFFI
Reverse polarity is:
Possible to cause a shock hazard
Which of the following would be the least hazardous for a staircase:
1/4” riser differential
Romex wiring can be used: A. Outside B. In garage with proper height C. In attic nailed to top of joist D. All the above
D. All the above
Another name for Romex is:
NM
Do you consider a missing remote control a defect on a garage door opener?
No
Central air added to an existing furnace. What is required?
2 speed fan
A 50 year old, forced air heating system has been retrofitted with an evaporator coil as part of a split system air conditioner. The ducts are original steel with 4” branch ducts insulated with asbestos paper. What can happen ?
The duct system may be prone to rusting and probably undersized for air conditioning loads.
A gas appliance vents through a 5/12 pitched roof requires a minimum clearance of :
1 foot
What is the proper clearance above a stovetop for a cabinet:
30”
Garage door requirement for garages built before 1978:
Needs safety wire through spring coil
The proper pressure of a hydronic heating system:
12-15
Where is the circulating pump for a hydronic heating system normally located:
Return side
What is a characteristic of knob and tube wiring:
No ground
Siding with insulation board underneath, covers the service entry Wire on a house.you report:
Can not be covered by the siding
What is not a cause of horizontal cracking in a foundation wall:
Wet basement wall
What is not a source or sign of a wet basement
Crack in floor
What would you not list as a safety hazard upon examination a chimney
No damper
A fireplace with an opening less than 6’ needs to have the hearth extended ___” to front and ___” to side
16”
8”
A fireplace with opening over 6’ needs to have the hearth extend ___” to front and ____ “ to side
20”
12”
How would you report excessive granule loss and curling of a 5 year old asphalt shingle:
Material defect
A built up roof has a 9” overlap.how many ply exist
4
A deck is attached to a house with several nails. What would you tell your client
Have deck checked and repaired by an expert
The floor joist of a deck are attached by joist hangers.there is one nail in a joist hanger hole.what do you tell the client:
Each hole needs proper size nail
How big is The fill pipe for an underground oil tank:
2 inches
There are cuts in the roof truss’ bottom cords to make room for a drop-down stairs. What would you report:
Have engineer evaluate
You flush an upstairs toilet and notice a gurgle sound in the bathtub . All of the following can be causing it Except: A. Lack of venting B. Siphoning of the tub trap water C. Vent is a wet vent D. Plugged drain
C. Vent is a wet vent
Hot water smells like rotten eggs. What would be one way to remove odor:
Replace magnesium anode rod with an aluminum anode tube
What is a summer switch, typically found in Older furnaces
Switch to manually activate a blower in a forced air furnace
A swamp cooler is used in:
Dry climate
Generally acceptable moisture readings of interior wall substrate should not exceed
16-19%
In a 2x8 floor joist where would a 2” notch be least harmful
Top
A water heater pressure relief valve is determined by
Sized by BTU
In a cathedral/vaulted ceiling what is The first sign of inadequate ventilation
Mold and mildew on ceiling
What is the proper way to insulate a cathedral/vaulted ceiling
Soffit and ridge with a 1” space between insulation and sheathing
What terms go together A. Lack of venting B. Siphoning of the tub trap water C. Vent is a wet vent D. Plugged drain
A.purlin,strut,rafter
Evaporative cooler
Has electricity and water to it
When does a built up roof need flood coating :
Tar paper showing
Each plumbing vent shall extend through its flashing and shall terminate vertically not less than
6” above the roof line
Earthquake- which of the following is not a structural concern A. Window in corner B. Termite damage C. Brick siding D. No sill bolts
C. Brick siding
Substantial movement of building can be explained by all of the following except:
Missing lintels
Ground rods must be driven in the ground at least:
8 feet
In a steam system , the normal operating pressure is:
2-3psi
The plumbing service/supply pipe should be at least
3/4”
Three purposes of a window are:
Light, ventilation , exit
The remark ‘low slope roof appears in good condition for its age’ is a :
Finding
‘Foundation. Improperly designed for these soil conditions’ is
Engineering comment
A greenish color on copper plumbing joints indicate
Normal conditions
Clay tile roof should have how much overlap/minimum
3 inches
Wood shakes should be installed roughly
1/2 inch apart
A 2x6 16” on center can Span:
Depends on species of wood
What year did code change for fire rated garage service door:
1990
What is cricket/saddle
Small gable roof behind chimney
What is proper flashing for a chimney
Counter and step flashing
What is the minimum diameter and the minimum extension above the roofline of a vent Pipe to prevent frost from closure ( per IRC)
3”
6” above snow line
You look into a crawl space there is little access
Inform customer you could not inspect the area and why
What is the minimum bearing for a wood joist on a masonry wall
3”
When weight is applied on top of a floor joist, what kind of pressure is applied to the bottom:
Tension
What is the sign of a cracked heat exchanger
Flame distortion
Gas appliances require accessible gas shut off valves on the supply piping. In which type of furnace is the shut off valve located inside the appliance
Wall furnace
When installing insulation in rafters, The minimum gap between the sheathing and insulation is:
1”
Moisture trapped under BUR will cause:
Blistering
What size copper wire is required for 40,30,20, and 15 amp breakers
8,10,12,14
Vapor barrier should be:
To the warm in winter side
The insulation vapor barrier should face toward the heated side(living space) of the insulation because
Moisture could condense in the insulation if the vapor barrier faces the cold side
Where should collar ties be attached to the rafter :
Nearer the middle
The minimum modern size water service pipe to a residence is
3/4” to 2”
What causes mold/miss to grow on the exterior of a home
Shade
What is the purpose of the accumulator in a heat pump
Keep liquids our of the compressor
A metering device is used to
Reduce pressure of the coolant
In a heat pump cycle, the condensing coil is located
Outside
Another name for a four way valve is
Reversing valve
During the heating season, the outside unit( heat pump) will go into a defrost cycle every 90 minutes. The defrost cycle then last for roughly :
10 mins
Rot/mildew/fungus can begin in moisture levels of :
20%
When testing a GFCI receptacle that is not grounded, how will the receptacle respond:
Will trip a receptacle, but not by the tester
A /C unit has 3 ton capacity. What is the BTU :
36,000
A new gas furnace had 2 pairs I rods running the length of the burners.they are:
Reducing oxides of nitrogen in the atmosphere
APP and SBS are a follows :
Are modified bitumen sheets used for BURs
What is the clearance to combustibles for a single wall furnace vent:
6”
What is the proper strapping requirement for ductwork
4’
What safety device was added to furnaces after 1980
Blower door switch
If natural gas line is changed to LP you need:
Smaller orifice
What is the name of the tool to hold stucco material when applying
Hawk/hod
The deeper. The foundation, the more pressure is exerted on it. Concrete walls need to be
6” thick at 5’ and 12” at 7’
When did safety glass become standard in sliding glass door
1960’s
The most common installation problem with concrete walls:
Mixed with too much water
At what water pressure do you start to get concerned:
80 psi
When converting from natural gas to LP
Need more combustion air
Mud jacking is
Forcing,under pressure,a material that will raise a concrete product to provide proper pitch
What causes ice damming
Inadequate insulation and ventilation
Interior water lines manufactured from polybutylene are:
Susceptible to failure due to crimped connection failure
Earthquake- which of the following is not a structural concern: A. Window in a corner B. Terminate damage C. Sill not bolted down D.OSB used for roof sheathing
D. OSB used for roof sheathing
Type L flue is rated for
Oil
A chimney should generally be installed
2’ higher than anything within 10’
All of the following types of pipe may be used in homes for gas except: A. Black pipe B.galvanized steel pipe C. Copper D. CPVC
D. CPVC
Romex is another name for what type of cable?
NM
If the black wire carries 10 amps, how much does the white or neutral wire carry
Same as the black wire
A furnace has a pilot, thermocouple set up, what shuts down the burner
Thermocouple
The three major components of a fossil fueled forced air furnace are
Heat exchanger, burner, blower
Function of a fan/limit switch is to
Control when fan comes on or off and shut off the burner if the furnace overheats
The two main components of an air cooled air conditioning system are:
Evaporator unit and the condenser unit
In a conventional heat pump, the most critical component is the
Compressor
How do you determine if a shower door has safety glazing
Marked in the corner
Maximum length of a flex gas tubing to a dryer or range is
6’
In a typical heat pump operation in the heat mode, the temp differential at the inside coil( condenser) should be about
25-30f
Glass block is considered
Not safety glazed
The function Of a barometric damper is to
Provide draft regulation.
The function of week holes in a brick home is to
Equalize pressure and to allow water to escape
Which of the following can be corrected A. Twisted joist can be straightened B. Joist deflection can be shimmed C. Crack in the heat exchanger D. None of the above
B. Joist deflection can be shimmed
A wood retaining wall is anchored to the hillside through The use of an
Anchor post
Monolithic slab on grade slabs will not have
Footings
What does EILS stand for
Exterior insulated and finish systems
Properly balanced ductwork ( supply/return) requires
Return ductwork to be 30% larger than supply ductwork
