UPC: Ch 5 Water Heater

D

Plastic piping used for venting water heaters shall be ______________.

a. CPVC

b. Schedule 80 PVC

c. ABS

d. approved

B

It shall be unlawful for any person to install, remove, or replace any water heater without first

________________________.

a. obtaining a plumbing contractor license from the Authority Having Jurisdiction

b. obtaining a permit from the Authority Having Jurisdiction

c. having a plumbing journeyman's

license

d. having permission from the building owner

B

Vent connectors of natural draft appliances ____________ be connected to mechanical draft systems operating under positive pressure.

a. may

b. shall not

c. must

d. must be interlocked before they can

A

A vent connector connected to a chimney flue serving a fireplace is ______________.

a. prohibited unless the fireplace flue opening is permanently sealed

b. prohibited

c. required to be a direct-vent type

d. required to use Type B connector

C

A draft hood-equipped water heater is vented through a concealed space. The portion of the

vent passing through the concealed space shall __________________________.

a. not exceed 6 feet in length

b. be a minimum 5 inches in diameter

c. be listed Type B, Type L, or listed material having equivalent insulating qualities

d. be a minimum 24 gauge material

D

The minimum capacity for a storage water heater is __________________.

a. not regulated by code

b. required to be a minimum of 40 gallons

c. required to be a minimum of 50 gallons

d. based on the "first hour rating" and the number of bedrooms and bathrooms

B

A water heater installed in a residential garage shall be ___________________.

a. listed for a garage installation

b. located or protected from damage by a moving vehicle

c. located not less than 16 inches above the garage floor

d. a direct-vent water heater

C

A final water heater inspection shall be made after ____________________.

a. all plumbing fixtures have been

installed

b. all gas appliances have been installed

c. work authorized by the permit has been installed

d. the plumber has left the job

C

Water heaters of other than the direct-vent type shall be located ______________.

a. within 6 feet of the chimney or gas vent

b. within 8 feet of the chimney or gas vent

c. as close as practical to the chimney or gas vent

d. within 10 feet of the chimney or gas vent

C

A three-bedroom home with two bathrooms is equipped with a gas storage-type water

heater. The minimum capacity for the water heater in accordance with the first hour ratings is ________________________.

a. 40 gallon

b. 67 gallon

c. 50 gallon

d. 80 gallon

C

utdoor combustion air shall be supplied by _________________________.

a. 1-1/2 inch Schedule 80 PVC

b. 2 inch Schedule 40 PVC

c. one or two permanent openings

d. 18 gauge round duct

B

Indoor combustion air supplied by using the "Standard Method" requires a minimum volume of ____________________________________.

a. 100 cu. ft. per 1,000 Btu/hr

b. 50 cu. ft. per 1,000 Btu/hr

c. 50 cu. ft. per 2,000 Btu/hr

d. 25 cu. ft. per 2,000 Btu/hr

A

Combustion air ducts shall ___________________.

a. serve a single space

b. be equal to the size of the water

heater vent

c. be a minimum of 12 square inches

d. be located within the upper or lower 12 inches of the water heater

C

Combustion air ducts that terminate in an attic shall ____________________.

a. be screened at the attic end only

b. be screened at both ends

c. not be screened

d. not be screened unless screen openings are at least 1 inch minimum

C

Draft hood-equipped and other fuel-burning Category I water heaters may be installed in

closets, bedrooms and bathrooms provided ________________________.

a. the appliance is listed

b. the closet is of fire-resistant construction

c. the closet has a listed, gasketed door assembly and a listed self-closing device

d. combustion air is provided by adjacent room

B

Water heaters supported from the ground shall rest on _____________________.

a. listed concrete blocks

b. a level concrete or other approved base

c. level solid undisturbed earth

d. a listed base of noncombustible construction

D

Where damage may result from a leaking water heater, a watertight pan of corrosion-

resistant materials shall be installed beneath the water heater when it is located in an attic or ________________________.

a. second-floor mechanical room

b. garage

c. any story above the first story

d. a floor-ceiling assembly

B

Plastic piping may be used to vent a water heater if the water heater is _____________.

a. a non-condensing type

b. listed for use with that material

c. a direct-vent type

d. an induced-or force-draft type

C

A special gas vent shall only be installed on a water heater if ___________________.

a. a gravity vent is not practicable

b. head height above the water heater is less than 1 foot

c. it is listed and installed per the listing and the manufacturer's instructions

d. the fire department or fire marshal deems it to be necessary

A

Water heaters incorporating integral venting means shall be considered properly vented

when ____________________.

a. Installed per the manufacturer's instructions and the referenced code sections

b. installed outside the building

c. installed inside the building with a direct vent to outside

d. combustion air is provided per this code

D

Water heater draft hoods or barometric draft regulators shall be _________________.

a. of the same size as the vent connector

b. located outside the appliance enclosure

c. located as close as practicable to the water heater

d. installed in the same room or enclosure as the water heater

C

The maximum horizontal length of a 5-inch vent connector for a water heater shall not

exceed _______________________.

a. 3 feet

b. 6 feet

c. 7 1/2 feet

d. 4 feet

C

Referring to the above drawing for a direct vent appliance with an input of 50,000 Btu or less, the minimum distance at X shall be ________________ inches. The minimum distance at Y shall be ____________ inches.

a. 12,9

b. 12,12

c. 9, 12

d. 9, 9

B

Referring to the above drawing for a direct vent appliance with an input greater than 50,000 Btu, the minimum distance from an opening into a building shall be ______________ inches. The minimum distance of the bottom of the vent terminal above finish grade shall be _________________ inches.

a. 12, 9

b. 12,12

c. 9,12

d. 9, 9

B

A Type B vent with a listed cap of 14 inches shall terminate at least ____________ higher than any portion of a building within 10 feet.

a. 1 foot

b. 2 feet

c. 18 inches

d. 3 feet

D

A water heater is installed on the roof of a building more than 15 feet in height. The code

requires ____________ to the roof unless other means acceptable to the Authority Having Jurisdiction are used.

a. a permanent ladder outside the building

b. a portable ladder

c. an outside means of access

d. an inside means of access

A

When using an alternate method of sizing with two vent connectors for draft hood-equipped

water heaters, the effective area of the common vent connector or vent manifold and all junction fittings shall not be less than the area of the larger vent connector plus ____________ percent of the areas of smaller flue collar outlets.

a. 50

b. 75

c. 25

d. 10

C

In seismic design categories _________, water heaters shall be anchored or strapped to resist horizontal displacement due to earthquake motion.

a. 3 and 4

b. A, B, C, and D

c. C, D. E, and F

d. 1 and 2

B

Where utilizing louvers and grills to provide combustion air, and the design and free area are

not known, it shall be assumed that wood louvers will have have ____________ percent free area metal louvers and grills will have ___________ percent free area.

a. 50,25

b. 25, 75

c. 25, 50

d. 50, 75

B

Exit terminals of mechanical draft systems shall not be less than __________ above grade where located adjacent to public walkways.

a. 6 feet

b. 7 feet

c. 10 feet

d. 8 feet

C

Clearances for listed water heaters shall be ______________________.

a. a minimum of 1 inch to combustible construction

b. a minimum of 2 inches to combustible construction

c. in accordance with the listing and the manufacturer's instructions

d. a minimum of 6 inches

to unprotected combustible construction

C

Water heaters installed in residential garages shall be installed so that all burners and burner-

ignition devices are located not less than 18 inches above the floor unless ____________________.

a. approved by the fire authority

b. the water heater has a separate combustion chamber

c. the water heater is listed as flammable vapor ignition resistant

d. the garage is detached from the living spaces

D

Where providing combustion air for draft hood-equipped water heaters installed in repair

garages, all combustion air shall be obtained from ________________________.

a. inside the repair garage

b. inside the building

c. inside or outside the building at least 8 feet above floor level

d. outside the building

A

Water heaters not listed for outside installation but installed outdoors shall be provided with ___________________.

a. protection to the degree that the environment requires

b. smoke and anti-theft alarms

c. a 1-hour fire-rated roof

d. a listed anti-corrosion coating

C

A Type B gas vent shall terminate at least ____________ feet above the highest connected equipment dralt hood or flue collar.

a. 12

b. 6

c. 5

d. 10

C

Appliances in garages may be installed in a separate enclosed space having access only from

the outside providing the combustion air is __________________.

a. provided from the enclosure

b. supplied from the garage

c. taken from the exterior

d. supplied from an attic

D

Indirect-fired water heaters that incorporate a single-wall heat exchanger shall _____________________.

a. have a maximum operating pressure in the heat exchanger not exceeding the maximum operating pressure of the potable water supply

b. have a heat-transfer medium of potable water or other nontoxic fluid recognized as safe by the FDA

c. bear the proper "caution" labels

d. meet all of the above

B

A listed water heater, located in an interior floor level closet, must have an access dimension _________________ for servicing purposes.

a. 24"w x 30"h

b. in accordance with their listing and the manufacturer's instructions

c. 30"w x 36"h

d. the size of the water heater

C

The passageway for a water heater in an attic shall be unobstructed and shall have a solid

flooring not less than _____________ inches wide from the entrance opening to the water heater.

a. 22

b. 30

c. 24

d. 36

D

For attic installation, the passageway and servicing area adjacent to the appliance shall be _____________.

a. identified

b. well lighted

c. dry

d. floored