PLUMBING CODE (SAMPLE
QUESTIONS) EXAM QUESTIONS AND
ANSWERS
Gutter - Answer-A piece of chemical fitted under another piece of flat metal or wood
over which water is expected to run
10' - Answer-Supports anchorage of piping shall not exceed an interval of _____.
Fittings and adapters - Answer-When connecting plastic pipe to other types of piping,
the specific transition intended shall be made with approved ____________________.
Rough piping inspection - Answer-The inspection of a gas piping system prior to
covering or concealing such pipe is called a ____________________.
Copper tube with brazed joints - Answer-Copper tubing used for water piping under
concrete slabs within a building shall be ___________________.
63psi - Answer-The static water pressure at the water meter is 80psi. At the outlet 40ft
above the meter, the static water pressure would be approximately ________.
10 gal/min - Answer-The water demand for shower head is _____________ per day.
6" - Answer-Vent pipes may offset horizontally when the distance above the extreme
overflow level of the fixture is at least ______.
5.00 - Answer-The minimum plumbing permit charge for one unit is _______.
Storm sewer - Answer-A drainage pipe used to carry main of surface water, cooling
water and similar liquid waste
Vents - Answer-Expansion joints shall be acceptable except in piping for __________.
Fixture - Answer-A receptacle attached to the plumbing system other than the trap in
which waste may be collected or retained for an ultimate discharge into the plumbing
system
5' - Answer-Cast iron piping in 10' lengths installed horizontally shall be supported at
intervals of not more than _____.
Total fixture units - Answer-Sizes of vertical and horizontal drainage pipes shall be
determined from _______________________.
, Laminar flow - Answer-The valve for controlling which has gradual and regular variation
over time and space is called __________________.
Rising stem gate valve - Answer-The valve for controlling two or more outlet in a cold
water supply line may be a ___________________.
3/4" - Answer-The minimum size building supply by the code for water
ASTM - Answer-According to existing Plumbing Code, cast iron pipes, wrought iron
pipes, weld steel pipes, copper pipes, vitrified clay, concrete and asbestos pipes shall
conform to the standard other than the Philippine standard.
Aluminum - Answer-A material not listed in the code for use in water piping
Testing laboratory - Answer-The critical level marking or a backflow prevention device
or vacuum breaker is a point established by the ____________________.
Within the building - Answer-cPVC water pipe may be used for hot and cold water
distribution systems
Wye combination - Answer-When connecting horizontal drain line with another
horizontal drain line, the acceptable fitting to be used is _______________________.
3" - Answer-The minimum allowable size of any building drain, horizontal branch,
vertical soil or waste stack serving one or more water closets shall be _______.
Gutter - Answer-It is a box-like collection device which is located on the exterior of the
building and receives storm water on one side
15psi for 15 min - Answer-The air pressure test for any threaded (low pressure) gas
piping shall be at least _________________.
Cast iron - Answer-Caulked or screwed joints shall be applicable to _____________.
2" - Answer-The vent pipe serving a combination waste and vent system with a 4"
drainpipe shall be at least _____.
Lowest to the highest point - Answer-Building sewers shall be tested by completely
filling the sewer with water from the _______________________.
Exposed fixture supply - Answer-In the water supply piping slip joints may be used only
on the ______________________.
Pressure relief valve - Answer-A water system containing a water heater will require
____________________.
QUESTIONS) EXAM QUESTIONS AND
ANSWERS
Gutter - Answer-A piece of chemical fitted under another piece of flat metal or wood
over which water is expected to run
10' - Answer-Supports anchorage of piping shall not exceed an interval of _____.
Fittings and adapters - Answer-When connecting plastic pipe to other types of piping,
the specific transition intended shall be made with approved ____________________.
Rough piping inspection - Answer-The inspection of a gas piping system prior to
covering or concealing such pipe is called a ____________________.
Copper tube with brazed joints - Answer-Copper tubing used for water piping under
concrete slabs within a building shall be ___________________.
63psi - Answer-The static water pressure at the water meter is 80psi. At the outlet 40ft
above the meter, the static water pressure would be approximately ________.
10 gal/min - Answer-The water demand for shower head is _____________ per day.
6" - Answer-Vent pipes may offset horizontally when the distance above the extreme
overflow level of the fixture is at least ______.
5.00 - Answer-The minimum plumbing permit charge for one unit is _______.
Storm sewer - Answer-A drainage pipe used to carry main of surface water, cooling
water and similar liquid waste
Vents - Answer-Expansion joints shall be acceptable except in piping for __________.
Fixture - Answer-A receptacle attached to the plumbing system other than the trap in
which waste may be collected or retained for an ultimate discharge into the plumbing
system
5' - Answer-Cast iron piping in 10' lengths installed horizontally shall be supported at
intervals of not more than _____.
Total fixture units - Answer-Sizes of vertical and horizontal drainage pipes shall be
determined from _______________________.
, Laminar flow - Answer-The valve for controlling which has gradual and regular variation
over time and space is called __________________.
Rising stem gate valve - Answer-The valve for controlling two or more outlet in a cold
water supply line may be a ___________________.
3/4" - Answer-The minimum size building supply by the code for water
ASTM - Answer-According to existing Plumbing Code, cast iron pipes, wrought iron
pipes, weld steel pipes, copper pipes, vitrified clay, concrete and asbestos pipes shall
conform to the standard other than the Philippine standard.
Aluminum - Answer-A material not listed in the code for use in water piping
Testing laboratory - Answer-The critical level marking or a backflow prevention device
or vacuum breaker is a point established by the ____________________.
Within the building - Answer-cPVC water pipe may be used for hot and cold water
distribution systems
Wye combination - Answer-When connecting horizontal drain line with another
horizontal drain line, the acceptable fitting to be used is _______________________.
3" - Answer-The minimum allowable size of any building drain, horizontal branch,
vertical soil or waste stack serving one or more water closets shall be _______.
Gutter - Answer-It is a box-like collection device which is located on the exterior of the
building and receives storm water on one side
15psi for 15 min - Answer-The air pressure test for any threaded (low pressure) gas
piping shall be at least _________________.
Cast iron - Answer-Caulked or screwed joints shall be applicable to _____________.
2" - Answer-The vent pipe serving a combination waste and vent system with a 4"
drainpipe shall be at least _____.
Lowest to the highest point - Answer-Building sewers shall be tested by completely
filling the sewer with water from the _______________________.
Exposed fixture supply - Answer-In the water supply piping slip joints may be used only
on the ______________________.
Pressure relief valve - Answer-A water system containing a water heater will require
____________________.
