2012 UPC Chapter 5 Water Heaters

RV 2.14.17

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RV 2.14.17

Quiz 1

Size the water heater for a house with 3 bathrooms and 4 bedrooms.

Size the water heater for a house with 1 bathroom and 3 bedrooms.

Size the water heater for a house with 2 bathrooms and 5 bedrooms.

Size the water heater for a house with 3 bathrooms and 6 bedrooms.

Size the water heater for a house with 1 bathroom and 2 bedrooms.

Size the water heater for a house with 1-1/2 bathrooms and 3 bedrooms.

Size the water heater for a house with 2 bathrooms and 3 bedrooms.

No water heater shall be hereafter installed that does not comply with the type and model of each size thereof approved by the Authority Having Jurisdiction.

True
False

Which activities can be performed on a water heater without a permit?

Maintenance
Installation
Removal
Replacement

An inspection of a chimney or vents must be made before the vents or their parts are covered or concealed.

When must a final water heater inspection be made by the AHJ?

When the work authorized by the permit is installed.
When the installation has been installed to code.
Prior to covering or concealing any of the work.
All of the answers provided.

A water heater installed in a bedroom must meet which of the following requirements?

Be located in a closet exclusively for the use of the water heater.
The closet must have a combustion air vent obtaining air from outside.
Must have self-closing hinges on the door.
Must have gaskets around the entire door.
All of the answers provided.

It is permissible to install a B-vent style water heater in a bathroom if it is installed in the linen/towel closet and is not visible.

True
False

A water heater installed in a bathroom must have a self-closing door that ______and shall be equipped with a self-closing hinge to make the door close and latch each time it is opened.

easily swings
freely swings
both of the answers provided
neither of the answers provided

A water heater that is installed in a bathroom with self-closing hinges shall not include a hold-on feature.

True
False

A water heater must be located as close as practical to a chimney or gas vent.

True
False

A water heater’s clearance shall not be such as to interfere with combustion air, draft hood clearance, and accessibility for servicing.

True
False

Listed water heaters are NOT always required to be installed in accordance with their manufacturer’s installation instructions.

True
False

All unlisted water heaters shall be installed with a clearance of at least ______on all sides and rear.

6 inches
8 inches
10 inches
12 inches

When combustible floors are under an unlisted water heater, it shall be protected in the approved manner.

True
False

All water heater installations are to be provided with overpressure protection by means of an approved listed device.

True
False

Only unlisted water heater installations shall be provided with over temperature protection.

True
False

Installation of temperature, pressure, and vacuum relief devices and automatic gas shutoff devices, shall be in accordance with the terms of their listings and NOT the manufacturer’s installation instructions.

True
False

It is permissible to install a shutoff valve between the relief valve’s discharge pipe and the atmosphere.

It is permitted to put a valve or any device of any kind on the path of the discharge pipe of the safety valve.

True
False

The hourly British thermal units (Btu) discharge capacity or the rated steam relief capacity of the pressure relief device shall NOT be less than the input rating of the water heater.

True
False

Quiz 2

All water heaters deriving heat from fuels or other types of energy may be constructed and installed with the approved standards.

True
False

An adequate supply of air for combustion, ventilation of heater rooms, and compartments shall not be provided for oil-burning water heaters.

True
False

Prior to installation of an oil-burning water heater, the AJH must approve its location.

True
False

The reference code for an oil-fired water heater is ______.

Uniform Mechanical Code
2012 UPC
NFPA 31
Flue Gas Code

An indirect-fired water heater must conform to the following code:

ASME Boiler and Pressure Vessel Code
Uniform Mechanical Code
2012 UPC
NFPA 31

Each indirect-fired water heater shall have a label that meets ______requirements.

UPC
UMC
ASHREA
ASME
RSES

Each indirect-fire water heater shall have a label showing that that the appliance has ______in accordance with ASME requirements.

been tested
been inspected
met the code
all of the answers provided

The pressure relief on a hot water boiler connected to an indirect-fired water heater is limited to a maximum of ______.

10 psig
20 psig
30 psig
40 psig
50 psig

The transfer medium for an indirect-fired water heater is potable water or a fluid with a toxicity rating of ______.

Class of 1
Class of 2
Class of 3
Non-Classified

A label for an indirect-fired water heater will bear the word ______at the top.

DANGER
STOP
CAUTION
NON POTABLE WATER

The toxicity rating is determined from the following source:

Merck Chemical Digest
US Encyclopedia of Chemistry
Pharmacy Digest
Clinical Toxicology of Commercial Products

The pressure of the heat-transfer medium for an indirect-fired water heater will only allow ______at most when using a relief valve.

10 psig
20 psig
30 psig
40 psig
50 psig

The Authority Having Jurisdiction always requires the use of an approved dielectric insulator on the water piping connections of water heaters and related water heating appliances.

True
False

In seismic design Category F, water heaters are not required to be anchored or strapped.

True
False

Upon installation, a water heater shall be strapped at points within its upper one-third and lower one-third areas.

True
False

At the lower strapping point of a water heater, the strapping shall be at a minimum distance of 4 inches above the controls.

True
False

For additional safety, earthquake valves are required on either the inlet or outlet of a gas meter.

True
False

A water heater supported from the ground shall rest on level concrete or other approved base with a height of at least ______above the surrounding ground level.

1 inch
2 inches
3 inches
4 inches
5 inches

When a water heater is located in an attic, where damage may result from a leak, a watertight pan without a drain shall be installed beneath the water heater.

True
False

A discharge pipe from a pressure relief valve is permitted to discharge into the water heater drip pan.

True
False

Where a water heater needs replacing, the location before installation must be checked for the following:

air combustion
clearance
venting
all of the answers provided
none of the answers provided

A non-direct vent-type gas appliance installed in a beauty shop that uses flammable aerosol sprays shall be located in a separate equipment room that has outside combustion and dilution air.

True
False

Process air shall be provided for comfort and proper working conditions for personnel.

True
False

Open flame gas water heaters are allowed near facilities that transmit flammable vapors.

True
False

A gas furnace or water heater in a garage, separate from the living space, shall be installed so that all burners and the ignition system are at least ______above the floor, unless the appliance is listed as flammable vapor ignition resistant.

12 inches
16 inches
18 inches
24 inches
28 inches

Installation of a water heater in a garage is permitted when it is installed at the proper height and is protected against damage by a moving vehicle.

Quiz 3

When is the Installation of a water heater (non-flammable vapor ignition resistant type) at floor level in a residential garage permitted?

Never.
Only when the garage is used for storage and not for parking cars.
When it is located in a separate room, not accessible from the garage with air supply outside the garage.
Anytime.

When installing appliances in an underground parking facility, what code needs to be followed?

NFPA 31
NFPA 62
NFPA 88A
Mechanical Code

When is an appliance allowed in a repair garage?

Never
When it is located in a detached room with 1 hour fire wall.
Anytime
Within regulations

In a repair garage, a heater is permitted to be installed if it is at least ______above the floor.

8 feet
10 feet
12 feet
None – there are no exceptions

When transferring flammable liquids in a repair garage, a heater will be permitted to be installed by the following code:

NFPA 409
NFPA 31
NFPA 88A
this is incorrect – heaters are prohibited to be installed if flammable liquids are transferred

Appliances installed in an Aircraft Hanger must conform to the following code:

NFPA 409
NFPA 31
NFPA 65
NFPA 88A

When the gas supply pressure is higher than that at which the appliance is designed to operate, a gas pressure regulator is permitted to be installed.

True
False

A combination of water heaters when used together shall be installed with the standard that applies to an individual unit.

True
False

By code, which of the following must be left at the job site by the installation crew upon completing a water heater installation?

The manufacturer’s installation instructions.
The phone number of the installation company.
A copy of the invoice.
Business cards for the installation company.

Can indoor equipment be installed outdoors?

Never
Yes
Maybe, if special protection is furnished for the equipment.

Installing appliances on roof tops shall be designed and enclosed correctly to withstand any type of climate condition.

True
False

On rooftops, the minimum clearance between a service panel and the wall of the enclosure is ______.

16 inches
24 inches
30 inches
36 inches
48 inches

When constructing a roof for appliances to be installed on, the roof will need to be capable of supporting the load capacity of the appliances.

True
False

______shall be of corrosion-resistant material.

Access locks
Screws
Bolts
All of the answers provided
None of the answers provided

At least ______of clearance shall be available between any part of the appliance and the edge of a roof, or shall have guardrails at least 42 inches high.

3 feet
6 feet
8 feet
10 feet
12 feet

On a roof top, the electrical disconnect must be ______.

readily accessible
within sight
both of the answers provided
neither of the answers provided

Any roof top appliance must be supplied with a 120-VAC grounded-type receptacle

True
False

A platform and/or walkway is required for an installed appliance on a roof top when ______.

there is standing water
the appliance is above the waterline
the roof is of a design having a water seal
all of the answers provided

Equipment and appliances located on a roof top shall not be required to have access.

True
False

Buildings over ______in height shall have an inside means of access to the roof, unless other means of access are acceptable to the Authority Having Jurisdiction.

10 feet
15 feet
20 feet
28 feet

The minimum trap door size shall be ______by ______.

22 inches – 24 inches
24 inches – 30 inches
28 inches – 36 inches
32 inches – 36 inches

Not less than ______of clearance shall be between the access opening and the edge of the roof or guards and not less than 42 inches in height shall be provided on the exposed side.

3 feet
6 feet
8 feet
10 feet
12 feet

Permanent lighting shall be provided at the roof access, with a switch located inside the building near the access leading to the roof.

True
False

Attic access shall have a passageway of at least ______by ______.

22 inches – 24 inches
22 inches – 30 inches
28 inches – 36 inches
32 inches – 36 inches

If the attic is under 6 feet in height, the distance to the appliance shall not exceed ______.

15 feet
20 feet
28 feet
30 feet

The width of a passageway in an attic should be at least ______.

16 inches
18 inches
24 inches
28 inches
32 inches

In an attic, the size of a level platform in front of a gas appliance should be at least ______by ______.

24 inches – 24 inches
30 inches – 30 inches
32 inches – 32 inches
36 inches – 36 inches

In an attic, is it required for a 120-volt receptacle and a lighting fixture to be installed near the appliance?