#41.
What is the number of fixture unit of floor drain for
waste pipe?
A
1
B
2
C
3
D
4
Answer: 2
#42.
Number of fixture unit of lavatory for waste
pipe?
A
1
B
2
C
3
D
4
Answer: 1
#43.
Number of fixture unit of urinal for waste
pipe?
A
2
B
4
C
6
D
8
Answer: 6
#44.
Support or anchorage of piping shall not
exceed an interval of?
A
10 ft
B
12 ft
C
8 ft
D
4 ft
Answer: 10 ft
#45.
The water demand for shower head is:
A
7.5 gpm
B
12 gpm
C
15 gpm
D
5 gpm
Answer: 15 gpm
#46.
Expansion joints shall be acceptable except
in piping for:
A
Cold water
B
Steam
C
Hot water
D
Vents
Answer: Vents
#47.
Sizes of vertical and horizontal drainage pipe
shall be determined from?
A
Type of building
B
Number of bathroom installed
C
Location of fixtures
D
Total fixture units
Answer: Total fixture units
#48.
The minimum allowable size of any building
drain, horizontal branch, vertical soil or waste
stack serving one or more water closets shall be:
A
4 inches
B
2 inches
C
4.5 inches
D
3 inches
Answer: 4 inches
#49.
The air pressure test for any threaded (low
pressure) gas piping system shall be at least
A
15 ft for 15 mins
B
10 ft for 15 mins
C
10 psi for 15 mins
D
15 psi for 15 mins
Answer: 10 psi for 15 mins
#50.
An electrically or mechanically operated
device used to elevate sewage and liquid waste
from a lower level to a point of discharge into a
sewer or other disposal system.
A
Ejector
B
Compressor
C
Ram
D
Hand pump
Answer: Ejector
#51.
The force required to move water inside the
pipe is called
A
Force
B
Velocity
C
Pressure
D
Friction
Answer: Pressure
#52.
The measure of inertia forces to viscous
forces, which sometimes describe whether it is
turbulent or laminar flow is
A
Moody number
B
Froude number
C
Reynolds number
D
Weber number
Answer: Reynolds number
#53.
A joint made by firmly packing with oakum
and filled with molten lead to a depth of not less
than one inch is for
A
Steel pipe
B
Plastic pipe
C
Cast iron bell and spigot soil pipe
D
Cast iron no hub pipe
Answer: Cast iron bell and spigot soil pipe
#54.
The minimum slope of 3” horizontal pipe
shall not be less than;
A
¾ inch per foot
B
¼ inch per foot
C
1 inch per foot
D
½ inch per foot
Answer: ¼ inch per foot
#55.
What pressure is required to test water
supply system?
A
100% of used water pressure
B
250% of used water pressure
C
150% of used water pressure
D
200% of used water pressure
Answer: 150% of used water pressure
#56.
A vertical vent that is continuation of drain
to which it connects is a
A
Circuit vent
B
Relief vent
C
Branch vent
D
Continuous vent
Answer: Continuous vent
#57.
A stack as defined in the code as _______________
A
Horizontal main
B
The main vent
C
The vertical main soil, waste or vent piping
D
Any vertical vent
Answer: The vertical main soil, waste or vent piping
#58.
All water supply, drainage venting system
and all fixtures and their traps complete with
their connection
A
Sanitary system
B
Sewer system
C
Plumbing system
D
Piping system
Answer: Plumbing system
#59.
Request for inspection by master plumber to
the administrative authority are required to be
made at least before the work to be tested.
A
1 working day
B
8 working days
C
3 working days
D
12 working days
Answer: 3 working days
#60.
A drain connecting compartments of a
certain fixture to its trap is called
A
Combination waste and vent
B
Continuous waste
C
Indirect waste
D
Special waste
Answer: Indirect waste
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