Which of the following plumbing principle
contradicts the National Plumbing Code?
a. Water closet shall be located in a properly lighted
and ventilated room.
b. Fixture directly connected to the plumbing system
shall be equipped with a water sealed trap.
c. Plumbing system shall be maintained in a sanitary
and serviceable condition.
d. Vent terminal shall not extend above the roof.
d. Vent terminal shall not extend above the roof.
Which of the following is the prohibited under
the Plumbing Code?
a. Providing an air gap or air break between the outlet
and the flood level rim of a fixture.
b. Using fittings to connect pipes instead of bending.
c. Provide a vent pipe to a fixture.
d. Double trapping a fixture.
d. Double trapping a fixture.
Which of the following is not a sanitary ware?
a. Kitchen sink
b. Bathtub
c. Urinal
d. Water closet
a. Kitchen sink
This refers to the installation of fixtures or
parts of the plumbing system which can be
completed prior to the installation of fixtures or
finishing.
a. Pipe laying
b. Roughing-in
c. Plumbing assembly
d. Mock-up installation
b. Roughing-in
Which tool is recommended for removing &
assembling of lavatory fittings?
a. Spud wrench
b. Monkey wrench
c. Basin wrench
d. Crescent wrench
c. Basin wrench
Calculate the velocity of wastewater flowing
through a pipe having a cross-sectional area of
2cm2 and a discharge rate of 8 cm3
/s.
a. 4 cm/s
b. 6 cm/s
c. 8 cm/s
d. 16 cm/s
a. 4 cm/s
What characteristic best describes a plastic or
synthetic pipe?
a. Low resistance to fluid flow
b. Ease of assembly
c. Hot or cold water system application
d. All of these.
d. All of these.
What type of wrench is used in NO-Hub
plumbing installation; it is used to ensure accurate
specific tightness, leak free joint?
a. Allen wrench
b. Strap wrench
c. Pipe wrench
d. Torque wrench
d. Torque wrench
What do you call the vertical distance
between the top dip and the crown weir of a trap?
a. Overflow
b. Crown
c. Invert
d. Trap seal
d. Trap seal
Storm water refers to?
a. Rainwater, surface run-off
b. Liquid plus human waste
c. Waste from laundry, sink and etc.
d. Domestic sewage
a. Rainwater, surface run-off
Which fitting or fitting combination is best
used at the base of a soil or waste stack?
a. 1/4 bend
b. 2 1/2 bend
c. Short sweep and 1/4 bend
d. Wye branch & 1/8 bend
d. Wye branch & 1/8 bend
Which of the following testing method is
most recommended for sanitary piping system?
a. Hydrostatic test
b. Water pressure test
c. Smoke test
d. Air pressure test
a. Hydrostatic test
Which type of support may be used on
vertical pipes and stacks?
a. Bracket
b. Metal strap
c. Trapeze
d. Clevis
b. Metal strap
Which of the following considered the most
efficient type of venting system?
a. Combination waste and vent
b. Group vent
c. Wet vent
d. Individual vent
d. Individual vent
Every exposed trap must ______.
a. Not able to retain large amount of waste water
b. Not provided with a removable cleanout plug
c. Have inadequate trap seal in order to cause trap seal
loss.
d. Be self-cleaning.
d. Be self-cleaning.
Which of the following is an insanitary type
of water closet?
a. Hopper type
b. Plunger type
c. Pan type
d. All of these
d. All of these
Plastic pipes are manufactured from?
a. Rubber based plastic
b. Thermoset plastic & thermoplastic
c. Thermoplastic plastic
d. None of the above.
b. Thermoset plastic & thermoplastic
This refers to the supply pipe between the
fixture supply pipe and the water distributing pipe.
a. Fixture branch
b. Building supply pipe
c. Fixture supply
d. Water service pipe
a. Fixture branch
Which of the following materials is not
recommended for use in water supply system
application?
a. Concrete pipe
b. Plastic pipe
c. Galvanized steel pipe
d. Brass pipe
a. Concrete pipe
Which of the following affects the flow of
water in a pipe?
a. Size of pipe.
b. Internal surface condition of pipes.
c. Number of turns or changes in direction of pipes.
d. All of these.
d. All of these.
