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Jim's Mock NHIE Exam Flashcards

1
Q
  1. What was added to furnaces in 1980 to increase their efficiency?
    a. Thermal coupler/pilot limit switch
    b. Two heat exchangers
    c. Draft Diverters
    d. High-limit switch
A

Two heat exchangers

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2
Q
  1. An inspector enters a vacant home to inspect it and notices a strong smell of gas. What should he do?
    a. Open the windows and inspect the home
    b. Investigate the smell and attempt to repair it
    c. Vacate the home and call all appropriate people
    d. Do nothing and continue with inspection
A

Vacate the home and call all appropriate people

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3
Q
  1. What material is not a proper flashing material?
    a. Copper
    b. Galvanized
    c. Aluminum
    d. Tar paper
A

Tar paper

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4
Q
  1. A three-prong receptacle requires:
    a. GFCI
    b. Grounding conductor
    c. Ground wire to a water pipe
    d. Illegal
A

Grounding conductor

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5
Q
  1. The neutral wire:
    a. Serves only one function
    b. Must be wired to ground bar
    c. Provides means to ground
    d. Returns 110v to ground
A

Returns 110v to ground

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6
Q
  1. Ice forming on the A/C evaporator coil is caused by:
    a. Too much air
    b. Not enough air
    c. Sized wrong
    d. All of above
A

Not enough air

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7
Q
  1. The exhaust vent of a gas dryer:
    a. Must be vented to the outside
    b. Vented to a ‘B’ type vent only
    c. Can be vented to a chimney with a gas furnace if it is on the bottom
    d. Vented to an ‘L’ type vent only
A

Must be vented to the outside

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8
Q
  1. A 3-tab asphalt shingle installed on a 5/12 pitch roof should have a minimum of:
    a. 6 nails
    b. 8 nails
    c. 4 nails
    d. 5 nails
A

4 nails

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9
Q
  1. In an electrical sub panel, the neutral wire must be:
    a. Separated from the ground
    b. Isolated
    c. Wired to ground
    d. Both separated from ground and isolated
A

Both separated from ground and isolated

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10
Q
  1. Deck built 14” off ground around a home:
    a. Needs handrail
    b. Needs railings
    c. Does not need to be inspected
    d. Requires no railing
A

Requires no railing

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11
Q
  1. Trusses:
    a. Can be cut
    b. Can never be cut
    c. Have two bearing points
    d. Should not be used
A

Have two bearing points

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12
Q
  1. You see a return air register in the side of a furnace:
    a. Say nothing
    b. Needed
    c. Can cause flue gases to be drawn into supply air
    d. Have no effect on operation
A

Can cause flue gases to be drawn into supply air

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13
Q
  1. Mid-efficiency furnace:
    a. No draft diverter required
    b. Needs spark ignition
    c. Has pilot light only
    d. Has 2 heat exchangers.
A

No draft diverter required

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14
Q
  1. What is the proper exposure for a 24” shake?
    a. 7 inches
    b. 12 inches
    c. 10 inches
    d. 8 inches
A
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15
Q
  1. Safety glazing is not required in:
    a. Side lights
    b. Greater than 10 sq. ft over 18” above floor
    c. Garage service door 100 sq. inches
    d. Picture windows
A

Greater than 10 sq. ft over 18” above floor

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16
Q
  1. Stucco hairline cracks appear every 16”. The cause can be attributed to?
    a. Shrinkage
    b. Nailing drywall on inside
    c. Improper installation
    d. None of the above
A

Nailing drywall on inside

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17
Q
  1. On a tile roof what is the proper way to flash around the chimney:
    a. Counter and step flashing
    b. Plastic flashing
    c. Caulk
    d. Counter and pan flashing
A

Counter and pan flashing

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18
Q
  1. You are inspecting a home built in 1950 and see a silver wire to a branch circuit. This would be:
    a. Tin coated copper
    b. Aluminum
    c. Copper
    d. Copper coated aluminum
A

Tin coated copper

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19
Q
  1. Moisture accumulates in poorly vented attic because:
    a. Moisture rises
    b. Moisture attracted to cold
    c. Warm air rises & condenses in the attic
    d. All of the above
A

Warm air rises & condenses in the attic

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20
Q
  1. What is the proper exposure for an 18-inch wood shake?
    a. 6 inches
    b. 7 1/2 inches
    c. 10 inches
    d. 12 inches
A

7 1/2 inches

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21
Q
  1. 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 of the above
A

All of the above
What you see
Recommend a fire stop be installed
Recommend they remove insulation from chase

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22
Q
  1. What determines size of flue:
    a. Opening of fireplace
    b. Area of firebox
A

Opening of fireplace

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23
Q
  1. 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
A

Reducing draw of exhaust gases

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24
Q
  1. Cross bridging on floor joists:
    a. Stops floor squeaks
    b. Removes sags from sub flooring
    c. Keeps joists from twisting
    d. Serves no purpose
A

Keeps joists from twisting

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25
Q
  1. Potential problems with roof sheathing are:
    a. 3/8” plywood used
    b. Ends touching each other
    c. Plywood placed parallel to rafters
    d. All of the above
A

All of the above
3/8” plywood used
Ends touching each other
Plywood placed parallel to rafters

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26
Q
  1. Which of the following does not require a dedicated circuit?
    a. Kitchen counter
    b. Bathroom
    c. Dining room
    d. Central heating
A

Dining room

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27
Q
  1. Wood shakes are most likely to wear and expose felt paper at:
    a. Valley
    b. Key way
    c. Ridge and hip
    d. Butt ends
A

Key way

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28
Q
  1. How far off the floor does a furnace’s source of ignition have to be in a garage?
    a. 12 inches
    b. 18 inches
    c. 6 inches
    d. 8 inches
A

18 inches

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29
Q
  1. Flat roof is used as an observation deck. Plumbing vent must extend:
    a. 1 foot
    b. 4 feet
    c. 7 feet
    d. 8 feet
A

7 feet

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30
Q
  1. An inspector is required to inspect at least:
    a. One window in each room
    b. 50% of all windows
    c. None of the windows
    d. All the windows
A

One window in each room

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31
Q
  1. A 12-foot long 2x8 floor joist has a notch. Where would the notch NOT be ok:
    a. 8 inches from end on bottom
    b. 8 inches from end on top
    c. In the middle
    d. 24 inches from end on bottom
A

In the middle

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32
Q
  1. A properly constructed retaining wall should:
    a. Be plumb
    b. Use anchors that are horizontal
    c. Be backfilled with gravel
    d. None of the above
A

Be backfilled with gravel

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33
Q
  1. A horizontal crack in a brick wall follows the gutter line. What is the cause:
    a. Rafter spread
    b. Shrinking mortar
    c. Stress from gutter
    d. Rusted lintel
A

Rafter spread

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34
Q
  1. In EIFS construction doors and windows can be properly sealed by:
    a. Backer rod and sealant
    b. Metal header and sides
    c. Plastic header
    d. Caulk
A

Backer rod and sealant

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35
Q
  1. A gas water heater is not allowed in:
    a. Attic with no pull-down steps
    b. Basement with ladder
    c. Crawl space
    d. Storage closet
A

Storage closet

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36
Q
  1. Each zone valve for a hydronic heating unit needs:
    a. Circulating pump
    b. Thermostat
    c. Relief valve
    d. Pressure gauge
A

Thermostat

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37
Q
  1. Sump pump runs even though it has been dry (no rain) for a long time. What is the cause:
    a. Pump undersized
    b. Float above water level
    c. Float stuck
    d. Pump oversized
A

Float stuck

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38
Q
  1. How much space is required between a double walled “B” vent and chase:
    a. 2 inches
    b. 4 inches
    c. 6 inches
    d. 1 inch
A

1 inch

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39
Q
  1. A new electric dryer receptacle:
    a. May have 4 wires to it
    b. Must be a dedicated circuit
    c. May be 120 volts
    d. All of the above
A

All of the above
May have 4 wires to it
Must be a dedicated circuit
May be 120 volts

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40
Q
  1. If the exterior service piping has been converted to plastic, what is required for electrical grounding:
    a. Provide another grounding means
    b. Ground to interior water pipe
    c. Ground to gas pipe
    d. Leave as is
A

Provide another grounding means

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41
Q
  1. The maximum number of disconnects to shut off an electrical service is:
    a. 1
    b. 2
    c. 4
    d. 6
A

6

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42
Q
  1. Which of the following is not an acceptable grounding means?
    a. Underground gas pipe
    b. Water pipe
    c. Well casing
    d. Ground rod
A

Underground gas pipe

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43
Q
  1. An electrical panel with a split busbar:
    a. Is illegal
    b. Has more than one shut off
    c. Breaker above controls other breakers
    d. Not grounded
A

Has more than one shut off

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44
Q
  1. What insulation is/was considered a safety hazard:
    a. Fiberglass
    b. Cellulose
    c. UFFI
    d. Wool
A

UFFI

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45
Q
  1. Reverse polarity is:
    a. Not a problem
    b. Is wired without a ground
    c. Possible to cause a shock hazard
    d. None of the above
A

Possible to cause a shock hazard

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46
Q
  1. Which of the following would be the least hazardous for a staircase?
    a. Torn carpet
    b. No switch for light
    c. 1/4” riser differential
    d. No handrail
A

1/4” riser differential

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47
Q
  1. Romex wiring can be used:
    a. Outside
    b. In garage with proper height
    c. In attic nailed to top of joist
    d. All of the above
A

All of the above
Outside
In garage with proper height
In attic nailed to top of joist

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48
Q
  1. Another name for Romex is:
    a. UF
    b. NM
    c. BX
    d. AL
A

NM

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49
Q
  1. All of the following are considered defects on a garage door opener except:
    a. Missing remote controls
    b. Electronic sensors mounted 12” off the floor
    c. The garage door reverses with, but with excessive resistance
    d. Doesn’t reverse within two seconds of contacting a test block
A

Missing remote controls

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50
Q
  1. Central air added to an existing furnace. What is required:
    a. More ductwork
    b. 2-speed fan
    c. Smaller ductwork
    d. More registers
A

2-speed fan

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51
Q
  1. 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. Which of the following is true?
    a. The fan should not be altered to a 2-speed system or it may exceed duct capacity
    b. The ducts should have more insulation installed to prevent condensation
    c. The duct system may be prone to rusting and probably undersized for air conditioning loads.
    d. The ducts should be supplied with dampers to seasonally balance the loads.
A

The duct system may be prone to rusting and probably undersized for air conditioning loads.

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52
Q
  1. A gas appliance vents through a 5/12 pitched roof requires a minimum clearance of:
    a. 1 foot
    b. 2 feet
    c. 3 feet
    d. 4 feet
A

1 foot

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53
Q
  1. What is the proper clearance above a stovetop for a cabinet?
    a. 28”
    b. 30”
    c. 32”
    d. 36”
A

30”

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54
Q
  1. Garage door requirement for garages built before 1978:
    a. Must have a reverse on operator
    b. Needs safety wire through spring coil
    c. Must have a child safety switch
    d. Must have switch out of range of child
A

Needs safety wire through spring coil

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55
Q
  1. The proper pressure of a hydronic heating system:
    a. 12-15
    b. 2-5
    c. 15-20
    d. Over 20
A

12-15

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56
Q
  1. Where is the circulating pump for a hydronic heating system normally located?
    a. Supply side
    b. Return side
    c. Middle
    d. Don’t have one
A

Return side

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57
Q
  1. What is a characteristic of knob and tube wiring?
    a. No ground
    b. Newer wires
    c. Run through conduit
    d. Is a safety hazard
A

No ground

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58
Q
  1. Siding with insulation board underneath, covers the service entry wire on a house. You report:
    a. Say nothing
    b. Say ok because insulated board protects it
    c. Cannot be covered by the siding
    d. Tell customer not to buy the house
A

Cannot be covered by the siding

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59
Q
  1. What is not a cause of horizontal cracking in a foundation wall:
    a. Expansive soil
    b. Freezing ground
    c. Weight overload on top plate
    d. Wet basement floor
A

Wet basement floor

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60
Q
  1. What is not a source or sign of a wet basement:
    a. Missing downspout
    b. Negative grade
    c. Rusting support post
    d. Crack in floors
A

Crack in floors

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61
Q
  1. What would you not list as a safety hazard upon examining a chimney:
    a. No damper
    b. Opening between brick and profile of flue
    c. Creosote and soot build-up
    d. Cracked flue
A

No damper

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62
Q
  1. A fireplace with an opening less than 6’ needs to have the hearth extend ” to front and ” to side:
    a. 16” / 4”
    b. 20” / 8”
    c. 16” / 16”
    d. 16” / 8”
A

16” / 8”

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63
Q
  1. How would you report excessive granule loss and curling of a 5-year old asphalt shingle?
    a. Material defect
    b. Not usual
    c. Stored improperly
    d. Needs more venting
A

Material defect

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64
Q
  1. A fireplace with an opening over 6’ needs to have the hearth extend ” to front and ” to side:
    a. 16” / 8”
    b. 20” / 8”
    c. 20” / 6”
    d. 20” / 12”
A

20” / 12”

65
Q
  1. A built-up roof has a 9” overlap. How many plies exist:
    a. 2
    b. 4
    c. 6
    d. 3
66
Q
  1. A deck is attached to a house with several nails. What would you tell your client?
    a. Add more nails
    b. Have deck checked and repaired by an expert
    c. Fix it himself
    d. You will fix it
A

Have deck checked and repaired by an expert

67
Q
  1. The floor joists of a deck are attached by joist hangers. There is one nail in a joist hanger hole. What do you tell the client?
    a. It’s ok
    b. Each hole needs proper size nail
    c. Do not buy the house
    d. Have an engineer examine
A

Each hole needs proper size nail

68
Q
  1. How big is the fill pipe for an underground oil tank?
    a. 1 inch
    b. 2 inches
    c. 3 inches
    d. 3.5 inches
69
Q
  1. There are cuts in the roof truss’ bottom cords to make room for drop-down stairs. You report?
    a. Tell owner to fix it
    b. Not structural
    c. Have engineer evaluate
    d. Help customer fix it
A

Have engineer evaluate

70
Q
  1. 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
A

Vent is a wet vent

71
Q
  1. Hot water smells like rotten eggs. What would be one way to remove odor:
    a. Replace water tank
    b. Turn up heat for a day
    c. Flush tank with ammonia
    d. Replace magnesium anode rod with an aluminum anode tube
A

Replace magnesium anode rod with an aluminum anode tube

72
Q
  1. What is a summer switch, typically found on older furnaces?
    a. Reversing valve in heat pump
    b. Switch to manually activate a blower in a forced air furnace
    c. Pilot shut-off device
    d. Switch to change thermostat to activate swamp cooler
A

Switch to manually activate a blower in a forced air furnace

73
Q
  1. A swamp cooler is used in:
    a. Dry climate
    b. Damp climate
    c. Any climate
    d. Commercial buildings only
A

Dry climate

74
Q
  1. Generally acceptable moisture readings of interior wall substrate should not exceed:
    a. 7-11%
    b. 11-14%
    c. 16-19%
    d. 26-29%
75
Q
  1. In a 2x8 floor joist where would a 2” notch be least harmful:
    a. Top
    b. Bottom
    c. Middle
76
Q
  1. A water heater pressure relief valve is determined by:
    a. Number of gallons
    b. Type of water heater
    c. Sized by BTU
    d. Age of heater
A

Sized by BTU

77
Q
  1. In a cathedral/vaulted ceiling what is the first sign of inadequate ventilation:
    a. Mold and mildew on ceiling
    b. Condensation around skylight
    c. Moisture on ceiling
    d. Sagging drywall
A

Mold and mildew on ceiling

78
Q
  1. What is the proper way to insulate a cathedral/vaulted ceiling?
    a. Soffit vents
    b. Ridge vent and soffit
    c. 1” space between insulation and sheathing
    d. Soffit and ridge with a 1” space between insulation and sheathing
A

Soffit and ridge with a 1” space between insulation and sheathing

79
Q
  1. What terms go together:
    a. Purlin, strut, rafter
    b. Sheathing, decking, floor joist, ceiling joist
    c. Studs, wallboard, ceiling joist
A

Purlin, strut, rafter

80
Q
  1. Gas water heaters are allowed in all of the following locations except:
    a. Basements accessible only from interior stairs
    b. Attics accessible only from a permanent ladder
    c. Storage closets
    d. Laundry rooms open to the living area
A

Storage closets

81
Q
  1. Evaporative Cooler:
    a. Used in damp climate
    b. Has a compressor
    c. Has electricity and water to it
    d. Not used on houses
A

Has electricity and water to it

82
Q
  1. When does a built-up roof need flood coating:
    a. When it delaminates
    b. Stains on ceiling
    c. Tar paper showing
    d. When ponding
A

Tar paper showing

83
Q
  1. Each plumbing vent shall extend through its flashing and shall terminate vertically not less than:
    a. 12 inches above roof line
    b. 6 inches above roof line
    c. Not required
    d. 3 feet above roof line
A

6 inches above roof line

84
Q
  1. Earthquake - which of the following is not a structural concern:
    a. Window in corner
    b. Termite damage
    c. Brick siding
    d. No sill bolts
A

Brick siding

85
Q
  1. Substantial movement of a building can be explained by all of the following except:
    a. Missing lintels
    b. Poor grading
    c. Soft soil
    d. Missing frost footings
A

Missing lintels

86
Q
  1. Ground rods must be driven in ground at least:
    a. 6 feet
    b. 7 feet
    c. 8 feet
    d. 10 feet
87
Q
  1. In a steam system, the normal operating pressure is:
    a. 30-40 psi
    b. 12-20 psi
    c. 22-25 psi
    d. 2-3 psi
88
Q
  1. The plumbing service/supply pipe should be at least:
    a. 1/4 inch
    b. 3/4 inch
    c. 3/8 inch
    d. 1/2 inch
89
Q
  1. The three purposes of a window are:
    a. Light, ventilation, appearance
    b. Ventilation, light, emergency entrance
    c. Light ventilation, scenery from outside
    d. Light, ventilation, exit
A

Light, ventilation, exit

90
Q
  1. The remark ‘low slope roof appears to be in good condition for its age’ is a:
    a. Comment
    a. Engineering comment
    b. Finding
    c. Description
91
Q
  1. ‘Foundation improperly designed for these soil conditions’ is:
    a. Engineering comment
    b. Finding
    c. Description
    d. Comment
A

Engineering comment

92
Q
  1. A greenish color on copper plumbing joints indicates:
    a. Normal conditions
    b. Water leak problems
    c. Mold growth problems
    d. Installation defects
A

Normal conditions

93
Q
  1. Clay tile roof should have how much overlap, minimum:
    a. 6 inches
    b. 3 inches
    c. 10 inches
    d. 12 inches
94
Q
  1. Wood shakes should be installed roughly:
    a. 1/2 inch apart
    b. 1 inch apart
    c. Makes no difference
    d. 2 inches apart
A

1/2 inch apart

95
Q
  1. A 2x6 16” on center can span:
    a. 6 feet
    b. 10 feet
    c. 12 feet
    d. Depends on species of wood
A

Depends on species of wood

96
Q
  1. What year did code change for fire rated garage service door?
    a. 1960
    b. 1980
    c. 1990
    d. 1970
97
Q
  1. What is a cricket/saddle?
    a. Small gable roof behind chimney
    b. Counter flashing
    c. Step flashing
    d. Hip roof
A

Small gable roof behind chimney

98
Q
  1. What is proper flashing for a chimney:
    a. Counter and step flashing
    b. Counter only
    c. Step only
    d. Tar
A

Counter and step flashing

99
Q
  1. What is the minimum diameter and the minimum extension above the roofline of a vent pipe to prevent frost closure (per IRC)?
    a. 6” / 12”
    b. 3” / 6”
    c. 3” / 6” above snowline
    d. 3” / 10”
A

3” / 6” above snowline

100
Q
  1. You look into a crawl space. There is little access:
    a. Report as ok
    b. Tell customer not to buy house
    c. Inform customer you could not inspect the area
    d. Inform customer you could not inspect the area and why
A

Inform customer you could not inspect the area and why

101
Q
  1. What is the minimum bearing for a wood joist on a masonry wall?
    a. 3”
    b. b. 3 1/2”
    c. c. 4”
    d. d. 4 1/2”
102
Q
  1. When weight is applied on top of a floor joist, what kind of pressure is applied to the bottom:
    a. Compression
    b. Tension
    c. Gravity
    d. None of the above
103
Q
  1. What is the sign of a cracked heat exchanger?
    a. Dirty burners
    b. Flame distortion
    c. Dirty registers
    d. Poor pilot performance
A

Flame distortion

104
Q
  1. Gas appliances require accessible gas shutoff valves on the supply piping. In which type of furnace is the shutoff valve located inside the appliance:
    a. Forced-air furnace
    b. Central-gravity furnaces
    c. Wall furnaces
    d. Floor furnaces
A

Wall furnaces

105
Q
  1. When installing insulation in rafters, the minimum gap between the sheathing and insulation is:
    a. 1”
    b. 2.5”
    c. 1.5”
    d. 2”
106
Q
  1. Moisture trapped under a BUR will cause:
    a. Blistering
    b. Alligatoring
    c. No consequence
    d. Additional insulation value
A

Blistering

107
Q
  1. What size copper wire is required for 40, 30, 20, and 15 amp breakers:
    a. 8, 10, 12, 14
    b. 14, 12, 10, 8
    c. 10, 12, 14, 16
    d. 6, 8, 10, 12
A

8, 10, 12, 14

108
Q
  1. Vapor barrier should be:
    a. To the cold side
    b. To the warm in winter side
    c. To either side
    d. Depends on where installed
A

To the warm in winter side

109
Q
  1. The insulation vapor barrier should face toward the heated side (living space) of the insulation because:
    a. Moisture could condense in the insulation if the vapor barrier faces the cold side.
    b. The vapor barrier will deteriorate if exposed to extreme cold
    c. The vapor barrier facing can be a fire hazard if exposed on the attic side
    d. The insulation must ‘breathe’ the same air as the unconditioned space
A

Moisture could condense in the insulation if the vapor barrier faces the cold side.

110
Q
  1. Where should collar ties be attached to the rafter:
    a. Nearer the top
    b. Nearer the middle
    c. Nearer the bottom
    d. None of the above
A

Nearer the middle

111
Q
  1. The minimum modern size water service pipe to a residence is:
    a. 1/2”
    b. 3/4” – 2”
    c. 1” – 2”
    d. 1 1/4” – 3 1/4”
A

3/4” – 2”

112
Q
  1. What causes mold/moss to grow on the exterior of a home:
    a. Sun
    b. Lots of rain
    c. Shade
    d. Ventilation
113
Q
  1. What is the purpose of the accumulator in a heat pump?
    a. Keep dirt out of the compressor
    b. Keep liquids out of the compressor
    c. Record a total of coolant used
    d. Reduce air-flow in coil
A

Keep liquids out of the compressor

114
Q
  1. A metering device is used to:
    a. Keep track of the coolant used
    b. Measure the energy used
    c. Reduce pressure of the coolant
    d. Increase pressure of the coolant
A

Reduce pressure of the coolant

115
Q
  1. In a heat pump cooling cycle, the condensing coil is located:
    a. Outside
    b. Inside
    c. Both inside and outside
    d. on top of condenser unit
116
Q
  1. Another name for a four-way valve is:
    a. Metering valve
    b. Reversing valve
    c. Poly-flex linkage decline connector
    d. pressure valve
A

Reversing valve

117
Q
  1. During the heating season, the outside unit (heat pump) will go into a defrost cycle every 90 minutes. The defrost cycle then lasts for roughly:
    a. 10 minutes
    b. 15 minutes
    c. 20 minutes
    d. 5 minutes
A

10 minutes

118
Q
  1. Rot/mildew/fungus can begin in moisture levels of:
    a. 10%
    b. 20%
    c. 30%
    d. 40%
119
Q
  1. When testing a GFCI receptacle that is not grounded, how will the receptacle respond:
    a. Will trip with tester
    b. Will trip at receptacle, but not by the tester
    c. Is incorrect and needs to be grounded
    d. Will trip at receptacle and with tester
A

Will trip at receptacle, but not by the tester

120
Q
  1. A/C unit has 3-ton capacity. What is the BTU:
    a. 3000
    b. 6000
    c. 30,000
    d. 36,000
121
Q
  1. A new gas furnace has 2 pairs of rods running the length of the burners. They are:
    a. Providing stability during shipping
    b. Reducing oxides of nitrogen in the atmosphere
    c. Helping prevent damage to the heat exchanger
    d. Debris that has fallen into the furnace
A

Reducing oxides of nitrogen in the atmosphere

122
Q
  1. APP and SBS are as follows:
    a. Caulking types recommended for roofs
    b. Types of underlayment for asphalt roof surface
    c. Are modified bitumen sheets used for BURs
    d. Adhesive-type materials for membrane roofs
A

Are modified bitumen sheets used for BURs

123
Q
  1. What is the clearance to combustibles for a single-wall furnace vent?
    a. 18”
    b. 9”
    c. 6”
    d. 8”
124
Q
  1. What is the proper strapping requirement for ductwork?
    a. 6’
    b. 4’
    c. 12’
    d. Not specified
125
Q
  1. What safety device was added to furnaces after 1980?
    a. High limit switch
    b. Fan blower switch
    c. Thermocouple
    d. Blower door switch
A

Blower door switch

126
Q
  1. If natural gas line is changed to LP, you need:
    a. Smaller orifice
    b. Larger orifice
    c. To change valve assembly
    d. Do nothing
A

Smaller orifice

127
Q
  1. What is the name of the tool to hold stucco material when applying?
    a. Trough
    b. Hawk/Hod
    c. Shovel
    d. Rack
128
Q
  1. The deeper the foundation, the more pressure is exerted on it. Concrete walls need to be:
    a. 6’ thick at 6’ and 8” thick at 8’
    b. 6” thick at 5’ and 8” thick at 7’
    c. 8” thick at 6’ and 8” thick at 7’
    d. None of the above
A

6” thick at 5’ and 8” thick at 7’

129
Q
  1. Concrete block walls need to be:
    a. 8” thick at 5’ and 12” thick at 8’
    b. 8” thick at 6’ and 12” thick at 8”
    c. 8” thick at 5’ and 12” thick at 7’
    d. Same for concrete block and cement walls
A

8” thick at 5’ and 12” thick at 7’

130
Q
  1. When did safety glass become standard in sliding glass door:
    a. 1940’s
    b. 1950’s
    c. 1960’s
    d. 1970’s
131
Q
  1. The most common installation problem with concrete walls:
    a. Mixed with too much water
    b. Too much Portland cement
    c. Not right sand mix
    d. Manufacturer defects
A

Mixed with too much water

132
Q
  1. At what water pressure do you start to get concerned:
    a. 60 psi
    b. 80 psi
    c. 100 psi
    d. 120 psi
133
Q
  1. When converting from natural gas to LP:
    a. Need more combustion air
    b. Need less combustion air
    c. Same amount of combustion air needed
    d. None of the above
A

Need more combustion air

134
Q
  1. Mudjacking is:
    a. Removing mud from under sidewalk and raising
    b. Lifting foundation above soil that is weak
    c. Forcing, under pressure, a material that will raise a concrete product to provide proper pitch
    d. Removing mud to pour footing
A

Forcing, under pressure, a material that will raise a concrete product to provide proper pitch

135
Q
  1. What causes ice damming:
    a. Too much snow
    b. Improper pitch
    c. Inadequate insulation and ventilation
    d. None of the above
A

Inadequate insulation and ventilation

136
Q
  1. Interior water lines manufactured from polybutylene are:
    a. Susceptible to failure, due to the metal connectors expanding more than the plastic.
    b. Susceptible to failure due to crimped connection failure
    c. Susceptible to failure due to the compression sleeves
    d. Considered state-of-the-art for water lines
A

Susceptible to failure due to crimped connection failure

137
Q
  1. Earthquake - which of the following is not a structural concern:
    a. Window in a corner
    b. Termite damage
    c. Sill not bolted down
    d. OSB used for roof sheathing
A

OSB used for roof sheathing

138
Q
  1. Type L flue is rated for:
    a. Gas
    b. Oil
    c. Wood
    d. All
139
Q
  1. A chimney should generally be installed:
    a. 6” higher than anything within 10’
    b. 18” higher than anything within 10’
    c. 2’ higher than anything within 10’
    d. 3’ higher than anything within 10’
A

2’ higher than anything within 10’

140
Q
  1. 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
141
Q
  1. Romex is another name for what type of cable:
    a. AC
    b. BX
    c. IMD
    d. NM
142
Q
  1. If the black wire or hot wire carries 10 amps, how much does the white or neutral wire carry:
    a. Half of the black wire
    b. Same as the black wire
    c. Twice as much as the black wire
    d. It is neutral (has no amps)
A

Same as the black wire

143
Q
  1. A furnace has a pilot, thermocouple setup. What shuts down the burner:
    a. Thermocouple
    b. Pilot
    c. Gas valve
    d. Burners
A

Thermocouple

144
Q
  1. The three major components of a fossil fueled forced air furnace are:
    a. Plenum, blower, register
    b. Return air, combustion air, vent system
    c. Heat exchanger, burner, blower
    d. Heating ducts, hot air venting system, plenum
A

Heat exchanger, burner, blower

145
Q
  1. Function of a fan/limit switch is to:
    a. Limit the speed of the fan and motor
    b. Control when fan comes on or off and shut off the burner if furnace overheats
    c. Measure and control the air flow over the heat exchanger
    d. Limit the airflow through the unit
A

Control when fan comes on or off and shut off the burner if furnace overheats

146
Q
  1. The two main components of an air-cooled air conditioning system are:
    a. The fan & coil
    b. Duct work and the expansion unit
    c. Evaporator unit and the condenser unit
    d. Compressor and refrigerant
A

Evaporator unit and the condenser unit

147
Q
  1. In a conventional heat pump, the most critical component is the:
    a. Compressor
    b. Condenser
    c. Expansion device
    d. Blower fan
A

Compressor

148
Q
  1. How do you determine if a shower door has safety glazing?
    a. Marked in a corner
    b. Glass will be foggy
    c. Wire mesh
    d. None of the above
A

Marked in a corner

149
Q
  1. Maximum length of a flex gas tubing to a dryer or range is:
    a. 6’
    b. 4’
    c. 3’
    d. 6”
150
Q
  1. In a heat pump heating cycle, the evaporator is:
    a. Outside
    b. Inside
    c. Either of the above
    d. None of the above
151
Q
  1. In a typical heat pump operation in the heat mode, the temperature differential at the inside coil (condenser) should be about:
    a. 25° - 30° F
    b. 5- 7° F
    c. 15° F
    d. 20- 22° F
A

25° - 30° F

152
Q
  1. Glass block is considered:
    a. Safety glazing
    b. Not safety glazed
    c. Not allowed to be used in homes
    d. None of the above
A

Not safety glazed

153
Q
  1. The function of a barometric damper is to:
    a. Prevent backdrafting
    b. Provide draft regulation
    c. Cool flue
    d. Provide combustion air
A

Provide draft regulation

154
Q
  1. The function of weep holes in a brick home is to:
    a. Allow home to breathe
    b. Equalize pressure and to allow water to escape
    c. Allow insects to exit
    d. None of the above
A

Equalize pressure and to allow water to escape

155
Q
  1. Which of the following can be corrected?
    a. Twisted joist can be straightened
    b. Joist deflection can be shimmed
    c. Crack in heat exchanger
    d. None of the above
A

Joist deflection can be shimmed

156
Q
  1. A wood retaining wall is anchored to the hillside through the use of a/an:
    a. Anchor post and deadman
    b. Tie member
    c. Spikes
    d. Anchor post
    e. Tie back
157
Q
  1. Monolithic slab-on-grade slabs will not have:
    a. Steel or wire mesh
    b. Cold-joints
    c. Footings
    d. Post-tension cables
158
Q
  1. What does EIFS stand for:
    a. Efficient insulation for structures
    b. Exterior insulated and finish systems
    c. Efficient insulation and finished systems
    d. Exterior insulation and functional systems
A

Exterior insulated and finish systems

159
Q
  1. Properly balanced ductwork (supply/return) requires:
    a. Supply ductwork to be 30% larger than return
    b. Return ductwork to be 30% larger than supply ductwork
    c. Ductwork should be same size
    d. Makes no difference
A

Return ductwork to be 30% larger than supply ductwork

ICA (52 decks)

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