Jim's Mock NHIE Exam Flashcards
(159 cards)
1
Q
- 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
2
Q
- 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
3
Q
- What material is not a proper flashing material?
a. Copper
b. Galvanized
c. Aluminum
d. Tar paper
A
Tar paper
4
Q
- A three-prong receptacle requires:
a. GFCI
b. Grounding conductor
c. Ground wire to a water pipe
d. Illegal
A
Grounding conductor
5
Q
- 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
6
Q
- 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
7
Q
- 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
8
Q
- 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
9
Q
- 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
10
Q
- 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
11
Q
- 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
12
Q
- 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
13
Q
- 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
14
Q
- What is the proper exposure for a 24” shake?
a. 7 inches
b. 12 inches
c. 10 inches
d. 8 inches
A
15
Q
- 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
16
Q
- 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
17
Q
- 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
18
Q
- 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
19
Q
- 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
20
Q
- 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
21
Q
- 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
22
Q
- What determines size of flue:
a. Opening of fireplace
b. Area of firebox
A
Opening of fireplace
23
Q
- 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
24
Q
- 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
25
25. 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
All of the above
3/8” plywood used
Ends touching each other
Plywood placed parallel to rafters
26
26. Which of the following does not require a dedicated circuit?
a. Kitchen counter
b. Bathroom
c. Dining room
d. Central heating
Dining room
27
27. Wood shakes are most likely to wear and expose felt paper at:
a. Valley
b. Key way
c. Ridge and hip
d. Butt ends
Key way
28
28. 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
18 inches
29
29. Flat roof is used as an observation deck. Plumbing vent must extend:
a. 1 foot
b. 4 feet
c. 7 feet
d. 8 feet
7 feet
30
30. 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
One window in each room
31
31. 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
In the middle
32
32. 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
Be backfilled with gravel
33
33. 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
Rafter spread
34
34. 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
Backer rod and sealant
35
35. 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
Storage closet
36
36. Each zone valve for a hydronic heating unit needs:
a. Circulating pump
b. Thermostat
c. Relief valve
d. Pressure gauge
Thermostat
37
37. 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
Float stuck
38
38. 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
1 inch
39
39. 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
All of the above
May have 4 wires to it
Must be a dedicated circuit
May be 120 volts
40
40. 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
Provide another grounding means
41
41. The maximum number of disconnects to shut off an electrical service is:
a. 1
b. 2
c. 4
d. 6
6
42
42. Which of the following is not an acceptable grounding means?
a. Underground gas pipe
b. Water pipe
c. Well casing
d. Ground rod
Underground gas pipe
43
43. 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
Has more than one shut off
44
44. What insulation is/was considered a safety hazard:
a. Fiberglass
b. Cellulose
c. UFFI
d. Wool
UFFI
45
45. 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
Possible to cause a shock hazard
46
46. 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
1/4" riser differential
47
47. 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
All of the above
Outside
In garage with proper height
In attic nailed to top of joist
48
48. Another name for Romex is:
a. UF
b. NM
c. BX
d. AL
NM
49
49. 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
Missing remote controls
50
50. Central air added to an existing furnace. What is required:
a. More ductwork
b. 2-speed fan
c. Smaller ductwork
d. More registers
2-speed fan
51
51. 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.
The duct system may be prone to rusting and probably undersized for air conditioning loads.
52
52. 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
1 foot
53
53. What is the proper clearance above a stovetop for a cabinet?
a. 28"
b. 30"
c. 32"
d. 36"
30"
54
54. 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
Needs safety wire through spring coil
55
55. The proper pressure of a hydronic heating system:
a. 12-15
b. 2-5
c. 15-20
d. Over 20
12-15
56
56. 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
Return side
57
57. What is a characteristic of knob and tube wiring?
a. No ground
b. Newer wires
c. Run through conduit
d. Is a safety hazard
No ground
58
58. 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
Cannot be covered by the siding
59
59. 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
Wet basement floor
60
60. 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
Crack in floors
61
61. 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
No damper
62
62. 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"
16" / 8"
63
64. 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
Material defect
64
63. 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”
20" / 12”
65
65. A built-up roof has a 9" overlap. How many plies exist:
a. 2
b. 4
c. 6
d. 3
4
66
66. 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
Have deck checked and repaired by an expert
67
67. 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
Each hole needs proper size nail
68
68. How big is the fill pipe for an underground oil tank?
a. 1 inch
b. 2 inches
c. 3 inches
d. 3.5 inches
2 inches
69
69. 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
Have engineer evaluate
70
70. 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
Vent is a wet vent
71
71. 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
Replace magnesium anode rod with an aluminum anode tube
72
72. 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
Switch to manually activate a blower in a forced air furnace
73
73. A swamp cooler is used in:
a. Dry climate
b. Damp climate
c. Any climate
d. Commercial buildings only
Dry climate
74
74. Generally acceptable moisture readings of interior wall substrate should not exceed:
a. 7-11%
b. 11-14%
c. 16-19%
d. 26-29%
16-19%
75
75. In a 2x8 floor joist where would a 2" notch be least harmful:
a. Top
b. Bottom
c. Middle
Top
76
76. 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
Sized by BTU
77
77. 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
Mold and mildew on ceiling
78
78. 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
Soffit and ridge with a 1" space between insulation and sheathing
79
79. What terms go together:
a. Purlin, strut, rafter
b. Sheathing, decking, floor joist, ceiling joist
c. Studs, wallboard, ceiling joist
Purlin, strut, rafter
80
80. 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
Storage closets
81
81. Evaporative Cooler:
a. Used in damp climate
b. Has a compressor
c. Has electricity and water to it
d. Not used on houses
Has electricity and water to it
82
82. When does a built-up roof need flood coating:
a. When it delaminates
b. Stains on ceiling
c. Tar paper showing
d. When ponding
Tar paper showing
83
83. 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
6 inches above roof line
84
84. Earthquake - which of the following is not a structural concern:
a. Window in corner
b. Termite damage
c. Brick siding
d. No sill bolts
Brick siding
85
85. 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
Missing lintels
86
86. Ground rods must be driven in ground at least:
a. 6 feet
b. 7 feet
c. 8 feet
d. 10 feet
8 feet
87
87. 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
2-3 psi
88
88. 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
3/4 inch
89
89. 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
Light, ventilation, exit
90
90. 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
Finding
91
91. ‘Foundation improperly designed for these soil conditions’ is:
a. Engineering comment
b. Finding
c. Description
d. Comment
Engineering comment
92
92. A greenish color on copper plumbing joints indicates:
a. Normal conditions
b. Water leak problems
c. Mold growth problems
d. Installation defects
Normal conditions
93
93. Clay tile roof should have how much overlap, minimum:
a. 6 inches
b. 3 inches
c. 10 inches
d. 12 inches
3 inches
94
94. Wood shakes should be installed roughly:
a. 1/2 inch apart
b. 1 inch apart
c. Makes no difference
d. 2 inches apart
1/2 inch apart
95
95. A 2x6 16" on center can span:
a. 6 feet
b. 10 feet
c. 12 feet
d. Depends on species of wood
Depends on species of wood
96
96. What year did code change for fire rated garage service door?
a. 1960
b. 1980
c. 1990
d. 1970
1990
97
97. What is a cricket/saddle?
a. Small gable roof behind chimney
b. Counter flashing
c. Step flashing
d. Hip roof
Small gable roof behind chimney
98
98. What is proper flashing for a chimney:
a. Counter and step flashing
b. Counter only
c. Step only
d. Tar
Counter and step flashing
99
99. 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"
3" / 6” above snowline
100
100. 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
Inform customer you could not inspect the area and why
101
101. 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"
3"
102
102. 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
Tension
103
103. What is the sign of a cracked heat exchanger?
a. Dirty burners
b. Flame distortion
c. Dirty registers
d. Poor pilot performance
Flame distortion
104
104. 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
Wall furnaces
105
105. When installing insulation in rafters, the minimum gap between the sheathing and insulation is:
a. 1"
b. 2.5"
c. 1.5"
d. 2"
1"
106
106. Moisture trapped under a BUR will cause:
a. Blistering
b. Alligatoring
c. No consequence
d. Additional insulation value
Blistering
107
107. 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
8, 10, 12, 14
108
108. 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
To the warm in winter side
109
109. 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
Moisture could condense in the insulation if the vapor barrier faces the cold side.
110
110. 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
Nearer the middle
111
111. 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”
3/4" – 2”
112
112. What causes mold/moss to grow on the exterior of a home:
a. Sun
b. Lots of rain
c. Shade
d. Ventilation
Shade
113
113. 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
Keep liquids out of the compressor
114
114. 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
Reduce pressure of the coolant
115
115. 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
Outside
116
116. Another name for a four-way valve is:
a. Metering valve
b. Reversing valve
c. Poly-flex linkage decline connector
d. pressure valve
Reversing valve
117
117. 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
10 minutes
118
118. Rot/mildew/fungus can begin in moisture levels of:
a. 10%
b. 20%
c. 30%
d. 40%
20%
119
119. 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
Will trip at receptacle, but not by the tester
120
120. A/C unit has 3-ton capacity. What is the BTU:
a. 3000
b. 6000
c. 30,000
d. 36,000
36,000
121
121. 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
Reducing oxides of nitrogen in the atmosphere
122
122. 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
Are modified bitumen sheets used for BURs
123
123. What is the clearance to combustibles for a single-wall furnace vent?
a. 18"
b. 9"
c. 6"
d. 8"
6"
124
124. What is the proper strapping requirement for ductwork?
a. 6'
b. 4'
c. 12'
d. Not specified
4'
125
125. What safety device was added to furnaces after 1980?
a. High limit switch
b. Fan blower switch
c. Thermocouple
d. Blower door switch
Blower door switch
126
126. If natural gas line is changed to LP, you need:
a. Smaller orifice
b. Larger orifice
c. To change valve assembly
d. Do nothing
Smaller orifice
127
127. What is the name of the tool to hold stucco material when applying?
a. Trough
b. Hawk/Hod
c. Shovel
d. Rack
Hawk/Hod
128
128. 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
6" thick at 5' and 8" thick at 7'
129
129. 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
8" thick at 5' and 12" thick at 7'
130
130. When did safety glass become standard in sliding glass door:
a. 1940’s
b. 1950’s
c. 1960’s
d. 1970’s
1960’s
131
131. 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
Mixed with too much water
132
132. At what water pressure do you start to get concerned:
a. 60 psi
b. 80 psi
c. 100 psi
d. 120 psi
80 psi
133
133. 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
Need more combustion air
134
134. 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
Forcing, under pressure, a material that will raise a concrete product to provide proper pitch
135
135. What causes ice damming:
a. Too much snow
b. Improper pitch
c. Inadequate insulation and ventilation
d. None of the above
Inadequate insulation and ventilation
136
136. 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
Susceptible to failure due to crimped connection failure
137
137. 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
OSB used for roof sheathing
138
138. Type L flue is rated for:
a. Gas
b. Oil
c. Wood
d. All
Oil
139
139. 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'
2' higher than anything within 10'
140
140. 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
CPVC
141
141. Romex is another name for what type of cable:
a. AC
b. BX
c. IMD
d. NM
NM
142
142. 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)
Same as the black wire
143
143. A furnace has a pilot, thermocouple setup. What shuts down the burner:
a. Thermocouple
b. Pilot
c. Gas valve
d. Burners
Thermocouple
144
144. 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
Heat exchanger, burner, blower
145
145. 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
Control when fan comes on or off and shut off the burner if furnace overheats
146
146. 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
Evaporator unit and the condenser unit
147
147. In a conventional heat pump, the most critical component is the:
a. Compressor
b. Condenser
c. Expansion device
d. Blower fan
Compressor
148
148. 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
Marked in a corner
149
149. Maximum length of a flex gas tubing to a dryer or range is:
a. 6'
b. 4'
c. 3'
d. 6"
6'
150
150. In a heat pump heating cycle, the evaporator is:
a. Outside
b. Inside
c. Either of the above
d. None of the above
Outside
151
151. 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
25° - 30° F
152
152. Glass block is considered:
a. Safety glazing
b. Not safety glazed
c. Not allowed to be used in homes
d. None of the above
Not safety glazed
153
153. The function of a barometric damper is to:
a. Prevent backdrafting
b. Provide draft regulation
c. Cool flue
d. Provide combustion air
Provide draft regulation
154
154. 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
Equalize pressure and to allow water to escape
155
155. 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
Joist deflection can be shimmed
156
156. 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
Tie back
157
157. Monolithic slab-on-grade slabs will not have:
a. Steel or wire mesh
b. Cold-joints
c. Footings
d. Post-tension cables
Footings
158
158. 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
Exterior insulated and finish systems
159
159. 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
Return ductwork to be 30% larger than supply ductwork
