NHIE Practice Quiz

When installing flexible supply air ducts under a floor joist space, the minimum requirement for the proper strapping sequence is generally A. 1 1/2" wide and at 4' spacing B. 3/4" wide and 6' spacing C. 1 1/2" wide and 6' spacing D. 3/4" wide and 6' spacing

A. 1 1/2" wide and at 4' spacing

The current MINIMUM service requirement for a new single-family home is: A. 100 amps B. 125 amps C. 150 amps D. 200 amps

A. 100 amps

https://www.hvac.com/wp-content/uploads/2019/09/heat-pump-hvac.jpg In inches, how high should the heat pump be to permit free drainage of defrost water? A. 3 B. 6 C. 9 D. 12

A. 3

Water is dripping from the surface of the cold water pipes above a gas water heater. This might be caused by: A. Exhaust spillage B. Short cycling C. A cold start D. Overfiring

A. Exhaust spillage

What is the minimum gap in a crawlspace soil floor to the bottom of a supply or return air duct A. Minimum of 4" above the floor in the crawlspace B. Half the distance between the bottom of the floor joist and soil C. Minimum of 8"above the floor in the crawlspace D. Any distance above the potential flood water level likely to be present

A. Minimum of 4" above the floor in the crawlspace

Which of the following is an indication that a masonry wall is veneer and NOT structural? A. No bond courses are seen B. The lintels are made of steel C. The windows are inset 6" from the wall face D. There are no arches in the wall

A. No bond courses are seen

Which of the following locations would be best for the thermostat of a heat pump in the cooling mode? A. interior hallway B. kitchen near a supply vent C. basement near the air handler D. master bedroom

A. interior hallway

An open breaker knock-out A. is dangerous and poses an electrical hazard B. provides access to the panel with the cover closed C. should be covered with electrical tape. D. should be connected to ground

A. is dangerous and poses an electrical hazard

A toilet in a residential bathroom A. is secured to the plumbing "closet flange" by two closet bolts B. is not allowed to have a double wax ring C. cannot be tightly sealed to a smooth floor such as sheet vinyl D. requires a minimum four-inch drainpipe

A. is secured to the plumbing "closet flange" by two closet bolts

A room is built over a garage, with floor joists parallel to the garage door opening. To allow room to install a double-wide automatic garage door-opener, the center of the joists may A. not be notched B. be notched up to 1/8th their depth C. be notched up to 1/6th their depth D. be notched only if a tension rod is installed

A. not be notched

The recommended maximum safe domestic water temperature in a home is how many degrees Fahrenheit? A. 110 B. 120 C. 130 D. 140

B. 120

A chimney cricket or saddle is required when the chimney is _____ inches or wider. A. 24 B. 30 C. 36 D. 42

B. 30

The minimum clearance between a stucco façade and soil should be? A. 2 inches B. 4 inches C. 6 inches D. 8 inches

B. 4 inches

Above what water pressure, in a single-family dwelling would you recommend a water pressure regulator? A. 60psi B. 80psi C. 100psi D. 120psi

B. 80psi

Which of the following should NEVER be embedded in a concrete slab-on-grade floor? A. Heat ducting B. Gas piping C. Electrical conduit D. Waste pipe

B. Gas piping

Sewage ejector pumps are necessary when a toilet: A. Is far from the main sewer stage B. Is below the septic drainage field C. Backs up frequently D. Above the sewer line

B. Is below the septic drainage field

All vertical joints of panel sheathing shall occur over: A. Fire blocking B. Studs C. Braced walls D. Window headers

B. Studs

A GFCI functions by sensing A. an overcurrent condition B. a current imbalance between the grounded and ungrounded conductors C. a short circuit D. an open neutral

B. a current imbalance between the grounded and ungrounded conductors

Mediation can best be described as a: A. court-imposed settlement B. facilitated negotiation C. quasi-judicial process D. non-binding arbitration

B. facilitated negotiation

A gas-fired furnace with a stamped metal clamshell heat exchanger most often fails from A. Condensation from the evaporator coil B. metal fatigue C. Excessive gas pressure D. lack use and age

B. metal fatigue

Skip sheathing for Wood Shingles & Shakes should have a minimum dimension of A. 1"x2" B. 1"x3" C. 1"x4" D. 1"x6"

C. 1"x4"

What is the minimum distance between a furnace/air handler and a return air vent? A. 6' B. 8' C. 10' D. 12'

C. 10'

An open flame or sparking device with fuel burning appliances MUST be elevated off the garage floor AT LEAST A. 6 inches B. 12 inches C. 18 inches D. 24 inches

C. 18 inches

The MINIMUM clearance between a wood stove single-wall vent-connector and combustible materials should be A. 3 inches B. 6 inches C. 18 inches D. 36 inches

C. 18 inches

Overhead electrical service should be a MINIMUM of how many feet above the flat roof subject to foot traffic? A. 4 feet B. 6 feet C. 8 feet D. 10 feet

C. 8 feet

While inspecting the furnace you detect very high levels of carbon monoxide at the supply air registers. You should: A. Advise that everyone run out the house for safety B. Immediately shut off the main gas valve to disable the unit C. Open windows, shut down systems, and advise immediate evaluation by an HVAC contractor D. Explain that the unit will need servicing in the future to prolong its life

C. Open windows, shut down systems, and advise immediate evaluation by an HVAC contractor

Columns typically support A. footers B. walls C. girders D. joists

C. girders

GFCI protection is not required for A. 240 volt pool pump motors and pool sweep motors. B. dishwasher and disposer receptacles C. multi-wire branch circuits D. garage receptacles

C. multi-wire branch circuits

The aluminum wire size that corresponds to a 20 amp breaker is A. 8 AWG B. 10AWG C. 12 AWG D. 14AWG

Correct Answer: 10AWG Feedback: Aluminum does not conduct electricity as well as copper so aluminum is one size larger. PGHI16 p.315, NHIEM15 p.188 , NHIEM19 v1 p.34

Low pressure steam boilers have relief valves set at A. 15 psi B. 12 psi C. 9 psi D. 6 psi

Correct Answer: 15 psi Feedback: The pressure relief valve is set at 15 psi. That said, most steam systems never get above 1/2 psi and some operate at a slight vacuum. See NHIE Mechanical Manual page 320.

Minimum access size opening for a crawl space where equipment is installed. A. 22" x 30" B. 20" x 32" C. 24" x 32" D. 30" x 30"

Correct Answer: 22" x 30" Feedback: See NHIE Structural Manual page 239

Wood bearing on a concrete foundation is required to have a minimum bearing of : A. 1.5 inches B. 2 inches C. 2.5 inches D. 3 inches

Correct Answer: 3 inches Feedback: NHIEM15 124 NHIE19 V2 - 199

The modern MINIMUM size water service pipe to a residence is A. 1/2 inch. B. 3/4 inch. C. 1 inch. D. 1 1/4 inch.

Correct Answer: 3/4 inch. Feedback: NHIEM19 p. 245

What is the MAXIMUM distance between foundation anchor bolts for sill plate? A. 18 inches. B. 2 feet. C. 4 feet. D. 6 feet.

Correct Answer: 6 feet. Feedback: The first bolt in the sill plate is 12" from the end and then every 6 feet. NHIE15 - 125 NHIE19 V2 - 200

The bonding wire for swimming pools and spas shall be at least A. 4 AWG B. 6 AWG C. 8 AWG D. 10 AWG

Correct Answer: 8 AWG Feedback: The bonding wire size is 8AWG. See NHIE Mechanical page 535. 2015 IRC 4204.2

https://app.prolydian.com/api/media/ba51b527-14bd-e911-80e0-000d3a141e93 In a split-system AC with a forced air gas furnace, what is the likely cause of the rust noted? A. Air conditioning condensate tray leakage. B. Mid-efficiency furnace condensate leakage. C. Mid-efficiency furnace vent gas condensation. D. Furnace issue due to missing B Vent cap.

Correct Answer: Air conditioning condensate tray leakage. Feedback: The evaporator is located in the plenum above the furnace. Evidence of leakage is noted at front plate of the heat exchanger evidence by rust stain at top and bottom of front cover. Note water stain on floor of the burner box. There is also likely water standing in the blower cabinet floor. The likely cause is one of these - Condensate tray rusted through, condensate tray drain clogged, or furnace cabinet is not level. NHIEM19 Mechanical - p. 124

https://app.prolydian.com/api/media/8f8786ac-5eb5-e911-80e0-000d3a141e93 There is evidence of heavy coat of oxidation on the pictured copper water pipes. What likely caused this condition A. High humidity in the basement of the home has caused the rust. B. Apparently there is a source of an alkaline material causing the copper to oxidize C. Pipe was installed that way. It was exposed to the weather prior to installation. D. There is excessive moisture condensing on the pipes due to leakage.

Correct Answer: Apparently there is a source of an alkaline material causing the copper to oxidize Feedback: High alkalinity, and meth production are two likely causes.

Where should squash blocks (web blocking) be found in a wood I-joist floor system? A. At load bearing wall over a beam, at cantilevers and point loads. B. At bearing ends and all splices. C. At bearing end ands plumbing penetrations D. at perimeter ends, plumbing penetrations, and splices over girders.

Correct Answer: At load bearing wall over a beam, at cantilevers and point loads. Feedback: Where ever there is a point load or load the could cause the OSB web to distort. See NHIE Structural Manual page 134. TJI floor Joist Installation Instructions.

EIFS is a siding material that: A. Is used in commercial buildings only. B. Looks like stucco but lacks a wire mesh. C. Can be installed on top of a modified bitumen membrane. D. Can be installed on top of a masonry surface.

Correct Answer: Can be installed on top of a modified bitumen membrane. Feedback: HRB15 p.50

https://app.prolydian.com/api/media/84bce4e4-58b5-e911-80e0-000d3a141e93 When you find a toilet with a Sloan Flushmate tank what should you say? A. Make a positive comment about the pressurized system. B. Comment that this unit may be subject to a recall. C. Make no comment other than function of the unit D. Recommend replace with a 1.6 gpm flush unit

Correct Answer: Comment that this unit may be subject to a recall. Feedback: A large number of them has been recalled. NHIE Mechanical Page 274

What action would most likely reduce fiberglass batt insulation R value of a stud cavity by the largest amount? A. Compressing the insulation behind an electrical cable B. Fluffing the insulation C. A slice in the Kraft facing D. Not installing a vapor retarder where required

Correct Answer: Compressing the insulation behind an electrical cable Feedback: Compressing the insulation reduces the open cell volume to hold heat. NHIE15 328 NHIE19 V2 p. 285

From which component in a split air conditioner does the refrigerant leave as a hot, high pressure gas? A. Compressor B. Condenser C. Expansion device D. Evaporator

Correct Answer: Compressor Feedback: The compressor compresses the refrigerant by packing the molecules tightly together as does a piston in a internal combustion engine which increases pressure of the refrigerant material. See NHIE Mechanical Manual page 243

The joints on the exterior of the brick chimney should be: A. Concaved. B. Raked. C. Open. D. Closed.

Correct Answer: Concaved. Feedback: Concaved gives the appearance of using you finger tip to strike the joint. The tooling process using a jointing tool produces tightly packed mortar and a joint that sheds water. NHIEM15 -39 NHIE19V2 - 38

The MOST common cause of chimney flue liner deterioration is: A. Rust. B. Condensation C. Bad cement. D. High wind.

Correct Answer: Condensation Feedback: NHIE 2019 Vol.1 p.383

https://app.prolydian.com/api/media/8f8786ac-5eb5-e911-80e0-000d3a141e93 There is evidence of heavy coat of oxidation on the pictured copper water pipes. What likely caused this condition A. High humidity in the basement of the home has caused the rust. B. Corrosive atmospheres. C. Pipe was installed that way. It was exposed to the weather prior to installation. D. There is excessive moisture condensing on the pipes due to leakage.

Correct Answer: Corrosive atmospheres. Feedback: Oxidizers like bleach, battery charging stations (lead acid), flue gas from poorly vented appliances, sewer gas , et al. Will corrode copper piping and wiring

Generally, which type of item is NOT included in a home inspection? A. Unsafe B. Defective C. Not present D. Cosmetic

Correct Answer: Cosmetic Feedback: NHIE 2019, Vol.2 p.324

https://o.quizlet.com/kAZ5xZ6Mrd.3eAomJ.qpGg.png When you see this condition you would report? A. No issue. Likely not even mention it. B. Enough water diverted to clean the dish. C. Diverter's job is to divert 100% of the water flow D. Faucet assembly is in need of replacement

Correct Answer: Diverter's job is to divert 100% of the water flow Feedback: Report that the diverter is not functioning as intended by design. Recommend repair or replacement. Industry Standards do not require you to say how to fix the issue. 2019 NHIEM - p. 263

Which type of overcurrent devices are not allowed in new construction? A. Edison base fuses B. Cartridge fuses C. Circuit breakers D. Half-size breakers

Correct Answer: Edison base fuses Feedback: Edison base fuses are no longer allowed in new construction. The issue is that 15 amp, 20 amp and 30 amp fuses are all interchangeable. This may result in too large a fuse being installed, leaving the circuit under protected. Mismatching is eliminated by using "S" Type fuses. See NHIE Mechanical Manual page 185

There is a crack at the upper corner on the lock side of an interior door. The crack gets wider as it runs toward the ceiling. The door scrapes against the lock-side jamb. What is the BEST recommendation in this situation? A. Repair by a handyman. B. Evaluation by a contractor. C. Repair by a contractor. D. Evaluation by an engineer.

Correct Answer: Evaluation by an engineer. Feedback: NHIE19 V2 p. 411

https://o.quizlet.com/dEJENBK8zzy.c9JTEJ-aUg.png What is the likely cause of the rust staining on this 92% efficient furnace? A. Air conditioning condensate leakage from plenum B. Plenum condensation due to excessively high humidity in the basement C. Furnace condensate collection tray leakage D. Frozen evaporator coil due to low refrigerant

Correct Answer: Furnace condensate collection tray leakage Feedback: From personal experience I have found several with either a loose joint or a cracked housing.General consensus of the group of Subject Matter Experts.

https://app.prolydian.com/api/media/cfac3fc3-26bd-e911-80e0-000d3a141e93 What type of condensate tray is pictured? A. Air conditioning B. Heat pump C. 90%+ furnace D. Gas air conditioning

Correct Answer: Gas air conditioning Feedback: This is the secondary heat exchanger condensate collection tray. This one is unusual - clear. NHIEM19 Mechanical - p. 170

Which is the best example of heat flow by conduction? A. Heat flowing from the inside to the outside of a radiator B. Heat flowing from a forced-air supply register C. Heat flowing from a steam boiler inside pipes D. Heat flowing from a floor furnace

Correct Answer: Heat flowing from the inside to the outside of a radiator Feedback: Heat moves through solid objects. NHIEM15 pg327; NHIEM19V1 p. 254

While inspecting a one-year-old house, slab on grade, you observe hairline cracks in the concrete floor with no vertical displacement. This indicates: A. Insufficient reinforcement. B. Unstable subsoil. C. Overhydrated concrete. D. Normal plastic shrinkage

Correct Answer: Normal plastic shrinkage. Feedback: Typical shrinkage - moisture evaporating out during the curing process. NHIE 2019 Vol.2, p.196

https://app.prolydian.com/api/media/caac3fc3-26bd-e911-80e0-000d3a141e93 What is the most likely use for these two 3/8" copper lines? A. Oil supply & return lines B. Air conditioning line set C. Hot and Cold water lines to a Sink D. Propane fuel line set

Correct Answer: Oil supply & return lines Feedback: Oil supply and return lines are pictured. Wrong diameters for AC line set. You would not bury hot and cold water lines in a concrete floor or under ground as you would have ground effect and lose heat from the hot water line. Propane does not have a return line. Reference: IRC15 - G2415.6, M2203.2 | IRC18 - M2203.2, p. 533

https://app.prolydian.com/api/media/df8b1c01-cbbd-e911-80e0-000d3a141e93 The angled board with the insulation piles on it in the photo would be considered A. Temporary truss bracing B. Permanent truss bracing C. Truss web member D. Truss chord member

Correct Answer: Permanent truss bracing Feedback: The angled board is permanent bracing to prevent racking and sway once the trusses are sheathed. When installed, there should be a truss drawing attached to one of the trusses. See NHIE Structural Manual page 163

https://app.prolydian.com/api/media/05914c43-9cbe-e911-80e0-000d3a141e93 What piece of equipment is pictured here? A. Exterior laundry vent for washer stand pipe after a remodel B. Air admittance valve for a newly installed wet bar. C. Radon suction fan and vent. D. Manufactured 90% efficient fireplace vent pipe.

Correct Answer: Radon suction fan and vent. Feedback: The enclosure covers the exhaust fan and electrical connections. We realize that radon is out of the scope of most inspection standards, however you would likely be asked "What is it?" IRC18 - Appendix AF101 | IRC15 - Appendix AF101

In which location may NM cable be installed? A. In intermediate metal conduit located under the eaves. B. Run through holes in floor joists in a crawlspace. C. On top of ceiling joists located 3 feet from an attic access opening. D. In rigid metal conduit buried 12 inches below grade

Correct Answer: Run through holes in floor joists in a crawlspace. Feedback: PGHI16 p.358, NHIEM15 p.198, NHIEM19 v1 p.

Sending the inspection report to which party is LEAST likely to be considered an ethical breach by a home inspector? Assume all parties attended the inspection. A. The client's parents. B. The buyer's agent. C. The seller's agent. D. The seller.

Correct Answer: The buyer's agent. Feedback: NHIE 2015 p.613, NHIE 2019 Vol. 2 p.411

A subpanel in a detached building has melted insulation on a neutral conductor. What is the most likely cause of this condition? A. The neutral conductor is loose at the terminal bar. B. The circuit breaker is defective. C. There is no grounding electrode. D. The circuit breaker ampacity is too large for the wire.

Correct Answer: The neutral conductor is loose at the terminal bar.Feedback: NHIEM15 p.189, NHIE19 v1 p.37

Which of the following is TRUE about the white (neutral) electric wire? A. No electric current flows through the white neutral wire. B. The white neutral wire should measure 110 volts to ground. C. White wires will not function for any other purposes than as a neutral. D. The white neutral wire returns current to ground.

Correct Answer: The white neutral wire returns current to ground. Feedback: NHIEM19 v1 p.4 , PGHI16 p.314 the neutral (grounded conductor) has the same current placed on it as the Hot (ungrounded) conductor. You can touch the neutral terminal and not get a shock because you and the neutral have the same potential to ground. If you removed the neutral from a circuit in use, and touched it, you'd be a component of the current return path- you'd be shocked or electrocuted. Live your life to avoid being a path to ground.

Which of the following is the LEAST important to report when inspecting through the wall air conditioning units? A. Moisture leakage into the wall cavity B. The fan is making a squealing noise C. Excessive rust noted on components D. There was only a 15 degree temperature spread

Correct Answer: There was only a 15 degree temperature spread Feedback: 15 to 20 degree temperature spread is normal. The other three answers are reportable defects. See NHIE Mechanical Manual page 240

https://app.prolydian.com/api/media/47673d7e-2ebd-e911-80e0-000d3a141e93 What condition is noted with the siding as shown in this photo? A. Paint is fading B. Nailing pattern is too tight C. Thermal bridging D. Defective siding material.

Correct Answer: Thermal bridging Feedback: Thermal bridging is where the heat is transferred from the interior of the house to the exterior skin. The latest International Energy Conservation Code requires insulation be added outside the of the studs to stop the thermal bridging.

Which of the following is the correct termination where the sloped roof terminates adjacent to a side wall? A. Use polyurethane caulking between the gutter and the wall. B. Use silicone caulking between the gutter and the wall. C. Use kick-out flashing into the gutter. D. Use only step flashing that is overlapped three inches.

Correct Answer: Use kick-out flashing into the gutter. Feedback: IRC 2018 903.2.1 p.431; IRC 2015 903.2.1; NHIE 2019 Vol.2 p.162

https://app.prolydian.com/api/media/8a819f50-5eb5-e911-80e0-000d3a141e93 What is pictured here? A. A mechanical sewage tank motor B. A backflow valve for a yard sprinkler C. Valves for an underground propane tank D. Control valve for a sewage ejection pump.

Correct Answer: Valves for an underground propane tank Feedback: A propane tank may be buried if manufacturer approved tank for the purpose. See NHIE Mechanical page 449

https://app.prolydian.com/api/media/7f88d4d9-2ebd-e911-80e0-000d3a141e93 What type of insulation material is shown here? A. Rock wool B. Vermiculite C. Cellulose D. Recycled plastic

Correct Answer: Vermiculite Feedback: Vermiculite insulation aka Perlite, was sold under the trade name of Zonolite. Some shows evidence of asbestos fibers. See NHIE Structural Manual page 335

The inspector encounters a steam boiler that is shut down for the season. The inspector has been trained to inspect steam boilers but rarely sees them. What is the BEST method for dealing with this situation? A. Visually inspect the boiler, report any visible defects, and note limitations B. Tell the client that you are not qualified to inspect steam boilers C. Report that the boiler was shut down D. Turn on the boiler and fully inspect it

Correct Answer: Visually inspect the boiler, report any visible defects, and note limitations Feedback: NHIE 2015 p.575; NHIE 2019 Vol.2 p.381

The flame from a properly adjusted oil burner should be what color? A. Blue with red tips. B. Red with blue tips. C. White with yellow tips. D. Yellow with white tips.

Correct Answer: White with yellow tips. Feedback: NHIEM19V1 p. 202

When inspecting a home, you note horizontal cracks in the foundation wall. Which of the following would NOT be a cause of overload from the outside? A. Wind shear B. Frost C. Soil pressure D. Backfill

Correct Answer: Wind shear Feedback: The other three will definitely cause foundation issues under right conditions. Wind shear will affect the structure above grade. NHIEM15 - 115 NHIE19V2 - 186

https://app.prolydian.com/api/media/793dcbaf-5db5-e911-80e0-000d3a141e93 Is there an issue with this installation? A. No issue, polybutylene correctly installed B. Yes, polybutylene compression clamps should be painted black C. Yes, polybutylene compression rings should be copper unpainted D. Yes, fittings should not be installed less than 12" apart

Correct Answer: Yes, polybutylene compression rings should be copper unpainted Feedback: The black painted compression rings are for PEX not Polybutylene. The interior diameter of the rings differ. See NHIE Plumbing page 374

When testing the GFCI test/reset device in the hall bathroom, you discover that the power shuts off to the outlets in the remaining bathrooms as well. You conclude A. all these outlets are properly wired on the same GFCI protected circuit, and no correction is needed. B. all these outlets are improperly wired on the same GFCI protected circuit, and correction is needed. C. the GFCI test/reset device is properly wired; however, test/reset devices are needed at the other outlets. D. the entire circuit is illegal since each bathroom GFCI outlet must be provided with a dedicated circuit.

Correct Answer: all these outlets are properly wired on the same GFCI protected circuit, and no correction is needed. Feedback: Each bathroom is not required to be on its own GFCI. This condition may be inconvenient is multiple appliances like hair dryers and curling irons are being used and overload the breaker. Both bathroom outlet will go dead. NHIE15 p.187, NHIE19 v. p.33

Which is most likely to be considered an ethical breach by a home inspector? A. gross negligence. B. negligent misrepresentation. C. ordinary negligence. D. fraud.

Correct Answer: gross negligence. Feedback: NHIE 2015 p.602 NHIE 2019 Vol.2 p.399

An ungrounded receptacle may be protected by a GFCI installed A. on the same phase as the receptacle. B. on the supply side of the receptacle. C. downstream from the receptacle. D. anywhere in the receptacle branch circuit.

Correct Answer: on the supply side of the receptacle. Feedback: This is a typical fix for an older house wit two prong receptacles. When installing n the first position of a circuit the other outlets downstream are also protected and may be replaced with three prong receptacles, when identifying them with label stating, "No Equipment Ground." IRC18 - p. 3501

While inspecting a metal framed building, you observe non-metallic sheathed wire installed through the factory stud cut-outs. Your recommendation should be A. plastic grommets should be installed. B. the wire must be removed and replaced with bx cable. C. all the wiring must be re-run in rigid conduit from the ceiling. D. all the wiring must be re-run in rigid conduit from the floor.

Correct Answer: plastic grommets should be installed. Feedback: The grommets protect the sheathing. NHIEM19 v2 p.236

Deck ledger boards with floor joists 16' 6", should be securely attached directly to the house by A. properly sized lag bolts every 16 inches. B. 16d galvanized nails placed every 16 inches. C. properly sized joist hangers for the house. D. properly sized lag bolts into the foundation ledge.

Correct Answer: properly sized lag bolts every 16 inches. Feedback: This is critical to prevent pullout during a excessive load on the deck. IRC18 507.9.1.3

Electric dryer receptacles in older houses: A. work with four-wire cords and plugs. B. may share a wire with a 120-volt receptacle C. require their own circuit D. are rated for at least 50 amps

Correct Answer: require their own circuit Feedback: Manufacturer Installation Instructions. Newer dryers require a 4 wire cord. 2 hots, a neutral and a ground.

A house's grounding electrode system: A. safely deals with voltage surges B. permits electricity to flow within the system. C. protects people from electric shock. D. prevents metal from becoming energized.

Correct Answer: safely deals with voltage surges Feedback: NHIEM19V1 pg7

The MAXIMUM number of throws required to disconnect all power at the service A. two B. four C. six D. eight

Correct Answer: six Feedback: A hand throw is a movement turning off one breaker. NHIEM15 p.180, NHIEM v1 p.19

Fiberglass batt insulation slows heat movement by: A. reflecting infrared radiation off the insulation. B. restricting vapor diffusion through the insulation. C. creating a thermal mass within the insulation. D. slowing air movement within the insulation

Correct Answer: slowing air movement within the insulation Feedback: Heat is trapped in the open cells of the insulation. Air is the transfer agent. NHIE15 327 NHIE19V2 p. 438 Definition

What type of foundation has a large amount of reinforced steel and is known as a floating foundation? A. Pier-and-grade beam foundation system B. inverted T spread footing foundation C. Battered foundation footing system D. Mat foundation slab

D. Mat foundation slab

The water heater pressure relief valve discharge pipe MUST be: A. A 3/4 inch pipe B. Made of rigid pipe C. Threaded at the bottom D. No smaller than the nominal size of the relief valve outlet.

D. No smaller than the nominal size of the relief valve outlet.

What is the prescriptive MINIMUM distance between the bottom of a microwave oven and a range cooking surface? A. 18 inches B. 24 inches C. 30 inches D. Varies by manufacturer

D. Varies by manufacturer

The causes of roof decking buckling include A. lack of panel clips and insulation B. lack of nails and gluing decking to the rafters C. improperly applied moisture barrier and roof shingles D. improperly installed materials that do not allow for expansion

D. improperly installed materials that do not allow for expansion

A double gate that allows access to the pool should be A. solid B. at least 12" from the edge of the water C. at least 45" tall D. self latching

D. self latching

If a well pump cycles on and off rapidly, it is an indication that A. someone is turning a faucet on and off. B. the pressure switch is out of adjustment. C. there is a leak in the well supply line. D. the pressure tank is water logged.

D. the pressure tank is water logged.