1.
The abbreviation B and S Stands for
A. Building and sewer
B. Branch and secondary
C. Bidet and shower
D. Browne and Sharpe
2. Expansion loop is used in what kind of piping system?
A. Vent piping system
B. Hot water piping system
C. Sanitary drainage system
D. Storm drainage system
3. Branches and stacks are sized based on what parameter/s?
A. Number of fixtures
B. Fixture units
C. Type of fixture
D. All of these
4. Which material is not recommended for water supply system installation?
A. Stainless steel pipe
B. Asbestos cement pipe
C. Plastic pipe
D. Copper tube
5. Which of the following causes backflow?
A. Siphonage
B. Backpressure
C. Cross connection
D. All of these
6. A hose bib is a kind of faucet with
A. Outside threads
B. Inside threads
C. Flange end
D. Flanged outlet
7. Which device prevents water hammering?
A. Vacuum breaker
B. Air gap chamber
C. Water hammer arrester
D. All of these
8. Which type of vent may be connected to a branch vent?
A. Looped vent
B. Circuit vent
C. Individual vent
D. All of these
9. What system of piping consists of threaded pipes and uses recessed drainage fittings; used in soil
and waste piping system?
A. Sovent system
B. Durham system
C. Matheson system
D. None of these
10. Which of the following is not a component of a typical water closet?
A. Ballcock assembly
B. Flapper
C. Pop-up waste
D. Tank refill tube
11. Which of the following valves has the highest frictional coefficient value?
A. Globe valve
B. Butterfly valve
C. Gate valve
D. Ball valve
12. Which condition is included in the definition of the word insanitary?
A. Any trap that does not maintain proper trap seal
B. Any defective fixture
C. Receptable not sufficiently supplied with water to flush waste
D. All of these
13. The following are examples of plumbing appurtenances except
A. Cleanout
B. Tap
C. Vacuum breaker
D. Water closet
14. A plumbing unit consists of the following except
A. Bidet
B. Water meter
C. Lavatory
D. Floor drain
15. The word spigot is synonymous wit
A. Pipe
B. Faucet
C. Fitting
D. Bend
16. What type of support is used in horizontal pipings?
A. Clevis
B. U-bolt
C. Trapeze
D. All of these
17. A yoke vent is an inter-connection between
A. Fixture drain and horizontal branch
B. Horizontal branch and soil stack
C. Horizontal branch and branch stack
D. Vent stack and soil stack
18. The simplest and cheapest bonnet design of a valve
A. Soldered
B. Plugged
C. Screwed
D. Welded
19. Wastes in plumbing drainage are prohibited wastes, when you discharge
A. Alkaline water
B. Inflammable waste
C. Acid waste
D. Inflammable
20. What is the minimum water supply inlet for the kitchen sink?
A. 10 mm
B. 19 mm
C. 13 mm
D. 25 mm
21. What do you call the valve installed at the suction line of a pump?
A. Check valve
B. Ball valve
C. Foot valve
D. Float valve
22. Polyvinyl chloride (PVC) pipes used for drain waste vent (DWV) are manufactured based on the
standards set by this organization.
A. AWWA
B. ANSI
C. ASTM
D. None of the above
23. Water for domestic use comes from these sources except:
A. Groundwater
B. Rainwater
C. Surface water
D. Sea water
24. Gas that is not commonly found in sewer air of septic tank
A. Methane
B. Carbon monoxide
C. Ammonia
D. Chloride
25. A male thread fitting with square head used for closing another female fitting is called.
A. Nipple
B. Bushing
C. Cap
D. Plug
26. To boost the water pressure of hot water, use
A. Elevated water tank
B. Cistern
C. Gravity tank
D. Circulating pump
27. What is the meaning of U in uPVC?
A. Under
B. Universal
C. Unplasticized
D. Ultra
28. Storm water is
A. Potable water
B. Waste water
C. Rain water
D. Sea water
29. A device located at the bottom of a flush tank for flushing water closets and similar fixtures.
A. Flapper valve
B. Gate valve
C. Float valve
D. Flushometer valve
30. The vertical distance between the top dip and the crown weir.
A. Trap seal
B. Water seal
C. Dry seal
D. Invert elevation
31. A malleable iron fitting for threaded pipe with a 45o or 90o bend with an inside thread on one end
and outside thread on the other.
A. Street elbow
B. Straight elbow
C. Return bend
D. ¼ bend
32. A property of pipe having the ability to resist being worn away by friction when rubbed with another
object.
A. Hardness
B. Abrasion resistance
C. Tear resistance
D. Flow resistance
33. A vertical length of soil or waster stack at eight feet in height, within which horizontal branches from
one storey or floor of the building are connected to the stack.
A. Stack
B. Soil stack
C. Branch interval
D. Horizontal or waste branch
34. The top edge of a plumbing fixture or receptacle from which water overflows.
A. Rim level
B. Flood level rim
C. Flood level
D. Overflow edge
35. A piping material made from mild steel that is drawn through a die and welded. It is dipped in bath
of zinc, which treatment serves to some degree the pipe against the effects of acids.
A. Galvanized steel pipe
B. Galvanized wrought iron pipe
C. Cast iron pipe
D. Stainless steel pipe
