1.
- A kind
of G.I. fitting that has one end external threads, while the other end has
internal threads.
2.
- A kind
of G.I. fitting used as a reducer from a bigger diameter to a lesser
diameter.
3.
- A stop
valve in a service pipe close to its connection with a water main.
A. 
B. 
C. 
D. 
4.
- One
end is 0.30M and the other end is 0.90M long. This prevents the pipe from snapping (breaking?)when
the soil settles. [U-shaped?]
A. 
B. 
C. 
D. 
5.
- refers
to the public water system laid underground along the streets where the
house service is connected.
6.
- These
valves are used when it is desired that the flow through a pipe be always
in one direction and there is a possibility of a flow taking place in the
opposite direction. One type has a
pivoted flap which is readily pushed open by the pressure of water from
one side but is tightly closed by the force of a reverse flow.
7.
- To
insure no leakage, a G.I. pipe when threaded has to use lead liquid or ______ tape around the thread before tightening the fittings.
A. 
B. 
C. 
D. 
8.
1.
A slow draining
of water from a fixture down a plumbing system indicates a poor venting system.
This poor venting system is caused by:
A. 
A. Over loaded fixture unit in the soil stack
B. 
B. Change in the atmospheric pressure in the pipe
C. 
C. Wrong choice of vent type
D. 
9.
1.
A term used for a
pipe extension of not more than 2 feet in length, installed at any stack or
branch of a plumbing rough-in for the purpose future tap.
A. 
B. 
C. 
D. 
10.
1.
A type of pump
which comprises essentially an impeller or set of vanes enclosed in a housing
or casing close coupled with the pump motor. Its fundamental principle is it
adds energy in the form of velocity to an already flowing liquid.
A. 
B. 
C. 
D. 
11.
1.
A vent used in a
battery of plumbing fixtures where the vent is installed in front of the last
fixture of the battery.
A. 
B. 
C. 
D. 
12.
1.
Any pipe in the
plumbing system provided to ventilate a house drainage system and to prevent
trap siphonage and back pressure.
A. 
B. 
C. 
D. 
13.
1.
Single lever
valves used in kitchen sink and lavatory faucets or at shower valves has gain
popularity in plumbing installation today. This is because these valves are
beautiful and are maintenance-free. These valves work by the principle of a:
A. 
B. 
C. 
D. 
14.
1.
What is a type of
vent applied on installations with multi-branch interval where the vertical
vent pipe takes off in front of the first fixture and connects to a main vent
stack?
A. 
B. 
C. 
D. 
15.
-can be constructed with hand tools or power tools-depth of about 15 meters (50 ft)-can have the greatest diameter that a space may allow
A. 
B. 
C. 
D. 
16.
. The vertical supply
pipe which extends upward from one floor to the next is called a_________
A. 
B. 
C. 
D. 
17.
. Water is treated by giving ________________ to
kill the harmful bacteria present and to cure the turbid taste or “mud taste”,
remove clay, salts, iron, etc. commonly used treating liquids is chlorine.
18.
. A reservoir, tank
or vessel for storing or holding water or other liquids
A. 
B. 
C. 
D. 
19.
. Water is
distributed from the normal water pressure coming from the public water main,
for low rise buildings.
A. 
B. 
C. 
D. 
20.
. By gravity, water
is distributed from overhead water tanks and is supported either by structural
frames or on the roof decks. Fixtures
are below the gravity tank. These
elevated tanks are installed when normal water supply from main public service
pipes is not frequent and when normal pressure from city main is not enough to
force the water to the highest fixtures.
A. 
B. 
C. 
D. 
21.
1.
A device used to
control an incoming high water pressure into the water distribution system by
mechanical means so as to bring it to a working pressure of 80 psi.
A. 
B. 
C. 
C. Pressure reducing valve
D. 
22.
1.
A female GI pipe
reducer fitting used in a straight pipe connection where the fitting’s both
ends are threaded inside
A. 
B. 
C. 
D. 
23.
1.
A female GI
threaded pipe reducer fitting use to connect a reducing branch from a main
water distribution.
A. 
B. 
C. 
D. 
24.
1.
A female GI
threaded pipe reducer fitting use to connect a reducing branch pipe at an
angle.
A. 
B. 
C. 
D. 
25.
G1.
A fitting
installed at a branching tee from a horizontal soil branch to a horizontal
waste branch.
A. 
A. 4”x2” Wye and 2 1/8” bend combination
B. 
C. 
D. 
D. 4”x4” Wye and 4 1/8” bend combination