QUESTIONS WITH 100% CORRECT
ANSWERS { GRADED A+}
Appliance - ✔✔Any device that utilizes gas as a fuel or raw material to
produce light, heat, power, refrigeration, or air conditioning.
Appliance Regulator - ✔✔A pressure regulator for controlling pressure
to the appliance manifold.
Appliance Shut-off Valve - ✔✔A valve located in the piping system,
used to shut off individual equipment.
BTU - ✔✔British Thermal Unit; the quantity of heat required to raise
the temperature of 1 pound of water by 1 degree F.
,Category 1 Vented Appliance - ✔✔An appliance that operates with a
non-positive vent static pressure ad with a vent gas temperature that
avoids excessive condensate production in the vents.
Category 2 Vented Appliance - ✔✔An appliance that operates with a
non-positive vent static pressure and with a vent gas temperature that
may cause excessive condensate production in the vent.
Category 3 Vented Appliance - ✔✔An appliance that operates with a
positive vent static pressure that avoids excessive condensate production
in the vent.
Category 4 Vented Appliance - ✔✔An appliance that operates with a
positive vent static pressure and with a vent gas temperature that may
cause excessive condensate production in the vent.
Controls - ✔✔Devices designated to regulate the gas, air, water, or
electrical supply to an appliance. These may be manual or automatic.
, Direct Vent Appliances - ✔✔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 outdoors.
Flue Gases - ✔✔Products of combustion plus excess air in appliance
flues or heat exchangers.
Labeled - ✔✔Equipment or materials to which has been attached a
label, symbol, or other identifying mark of an organization that is
acceptable to the authority having jurisdiction and concerned with
product evaluation, that maintains periodic inspection of production of
labeled equipment or materials, and by whose labeling the manufacturer
indicates compliance with appropriate standards or performance in a
specified manner.
Leak Check - ✔✔An operation performed on a complete gas piping
system, the connections, appliances, and equipment to verify that the
system does not leak.