Water Heater Plumbing Test (Texas) Questions With
Complete Solutions
A vacuum relief valve is required for water heaters that do not
include a "dip" tube with a hole at the top. The "dip" tube is
common with most water heaters having the cold water supply
connected at the top of the tank. Bottom-fed water heaters do not
have the "dip" tube, so they require a vacuum relief valve.
Correct Answers
Anodeless Riser Correct Answers A transition assembly in
which plastic piping is installed and terminated above ground
outside of a building.
Approved Correct Answers Acceptable to the code official.
BTU Correct Answers Abbreviation for British thermal unit,
which is the quality of heat required to raise the temperature of 1
lb (454 g) of water 1°F (0.56°c) (1 BTU = 1055 J)
Chimney Correct Answers A primarily vertical structure
containing one or more flues, for the purpose of carrying
gaseous products of combustion and air from an appliance to the
outside atmosphere.
Clearance Correct Answers The minimum distance through air
measured between the heat-producing surface of the mechanical
appliance, device or equipment and the surface of the
combustible material or assembly.
, Combustion Air Correct Answers Air necessary for complete
combustion of a fuel including theoretical air and excess air
Concealed Location Correct Answers A location that cannot be
accessed without damaging permanent parts of the building
structure or finish surface. Space above, below or behind readily
removable panels or doors shall not be considered as concealed.
Connector, Appliance (Fuel) Correct Answers Rigid metallic
pipe and fittings, semirigid metallic tubing and fittings or a
listed and labeled device that connects an appliance to the gas
piping system.
Connector, Chimney or Vent Correct Answers The pipe that
connects an appliance to a chimney or vent.
Demand Correct Answers The maximum amount of gas input
required per unit of time, usually expressed in cubic feet per
hour or BTU/H (1 BTU/h = 0.2931 W)
Direct-Vent Appliance Correct Answers Appliances that are
constructed and installed so that all air for combustion is derived
directly from the outdoors and all flue gases are discharged to
the outside atmosphere
Draft Correct Answers The pressure difference existing
between the appliance or any component part and the
atmosphere, that causes a constant flow of air and products of
combustion through the gas passages of the appliance to the
atmosphere.
Complete Solutions
A vacuum relief valve is required for water heaters that do not
include a "dip" tube with a hole at the top. The "dip" tube is
common with most water heaters having the cold water supply
connected at the top of the tank. Bottom-fed water heaters do not
have the "dip" tube, so they require a vacuum relief valve.
Correct Answers
Anodeless Riser Correct Answers A transition assembly in
which plastic piping is installed and terminated above ground
outside of a building.
Approved Correct Answers Acceptable to the code official.
BTU Correct Answers Abbreviation for British thermal unit,
which is the quality of heat required to raise the temperature of 1
lb (454 g) of water 1°F (0.56°c) (1 BTU = 1055 J)
Chimney Correct Answers A primarily vertical structure
containing one or more flues, for the purpose of carrying
gaseous products of combustion and air from an appliance to the
outside atmosphere.
Clearance Correct Answers The minimum distance through air
measured between the heat-producing surface of the mechanical
appliance, device or equipment and the surface of the
combustible material or assembly.
, Combustion Air Correct Answers Air necessary for complete
combustion of a fuel including theoretical air and excess air
Concealed Location Correct Answers A location that cannot be
accessed without damaging permanent parts of the building
structure or finish surface. Space above, below or behind readily
removable panels or doors shall not be considered as concealed.
Connector, Appliance (Fuel) Correct Answers Rigid metallic
pipe and fittings, semirigid metallic tubing and fittings or a
listed and labeled device that connects an appliance to the gas
piping system.
Connector, Chimney or Vent Correct Answers The pipe that
connects an appliance to a chimney or vent.
Demand Correct Answers The maximum amount of gas input
required per unit of time, usually expressed in cubic feet per
hour or BTU/H (1 BTU/h = 0.2931 W)
Direct-Vent Appliance Correct Answers Appliances that are
constructed and installed so that all air for combustion is derived
directly from the outdoors and all flue gases are discharged to
the outside atmosphere
Draft Correct Answers The pressure difference existing
between the appliance or any component part and the
atmosphere, that causes a constant flow of air and products of
combustion through the gas passages of the appliance to the
atmosphere.
