TLE 8 – PLUMBING

FOURTH QUARTER EXAMINATION

NAME: _______________________________ SECTION: _______________________ SCORE:_______

I. Direction: Select the letter of the correct answer. Write your answer on the space provided.
1. Which plumbing material is made of polyvinyl chloride?
A. GI pipe B. PE C. PVC D. PVP
2. What material is used to join PVC pipes?
A. Epoxy B. Glue C. Rugby D. Solvent
3. What is specifically used as seal when joining threaded pipes?
A. Electrical tape B. Masking tape C. Packing tape D. Teflon tape
4. Which tool is used to clean the edges of cut pipes?
A. Pipe cutter B. Pipe reamer C. Pipe sander D. Pipe threader
5. Which tool is used for loosening and tightening threaded GI pipes?
A. Box wrench B. Open-end wrench C. Pipe wrench D. Socket wrench
6. Which tool is used for measuring the length of plumbing materials?
A. Plumb bob B. Pull-push rule C. Try-square D. Vernier caliper
7. Which tool is used for measuring the diameter of a pipe?
A. Plumb bob B. Pull-push rule C. Try-square D. Vernier caliper
8. What tool is used for testing 90 degree bend on a PVC pipe?
A. Hose level B. Plumb bob C. Spirit level D. Try-square
9. What is used for joining PE pipes?
A. Glue B. Heater C. Solvent D. Tape
10.What is determined by measuring the length of the line through the center that touches two
points on the edge of the circle?
A. Area B. Circumference C. Diameter D. Radius
11.What is determined when you multiply the diameter of a circle by 3.1416?
A. Area B. Circumference C. Diameter D. Radius
12.What can be measured in a water supply tank aside from volume?
A. Density B. Pressure C. Salinity D. Temperature
13.What are used to represent actual plumbing components in a plumbing schematic diagram?
A. Blocks B. Drawings C. Pictures D. Symbols
14.What is done to prolong the lifespan of tools and equipment?
A. Maintenance B. Refinish C. Repair D. Replacement
15.What tools maintenance is done by applying oil on tools or equipment?
A. Cleaning B. Lubricating C. Repair D. Storage
16.How should you acquire materials for your project? Submit a ______________.
A. Borrower’s Slip to the Supply Officer
B. Requisition Form to the Supply Officer.
C. Borrower’s Slip to the Property Custodian
D. Requisition Form to the Property Custodian.
17.What form should you submit to acquire tools to be used for your project? Submit a _______.
A. Borrower’s Slip to the Supply Officer
B. Requisition Form to the Supply Officer.
C. Borrower’s Slip to the Property Custodian
D. Requisition Form to the Property Custodian.
18. What tool should you use to accurately measure the diameter of a PVC pipe?
A. Pressure gauge B. Pull-push rule C. Try-square D. Vernier Caliper
19. How many millimeters are there in 1.5cm?
A. 1.5mm B. 15mm C. 150mm D. 1500mm
20. How many centimeters are there in 2 inches?
A. 0.58cm B. 5.08cm C. 50.8cm D. 508cm
21. What is the diameter of a pipe with 2cm radius?
A. 1cm B. 2cm C. 3cm D. 4cm
22. What is the circumference of the pipe in item number 21?
A. 3.14cm B. 6.28cm C. 12.57cm D. 18.85cm
23.What is the circumference of a GI pipe with 2 inch diameter?
A. 3.14cm B. 6.28cm C. 12.57cm D. 18.85cm
24.What maintenance should you apply to rusty pliers?
A. Cleaning only C. Lubrication only
B. Cleaning and lubrication D. Cleaning and parts replacement
25.What cleaning tool and material should you use for a power tool?
A. Cloth and wipeout B. Brush and WD40
C. Rags and liquid soap D. Brush and liquid soap
26. Why is a Vernier caliper more accurate in measuring pipe diameter than a pull-push rule?
A. It has more markings.
B. The Vernier caliper has adjustable jaws.
C. The markings in a Vernier caliper are more accurate.
D. The Vernier caliper can measure to 0.001” or 0.02 mm.
27.What measurement is shown in the Vernier caliper illustration?

A. 0.36 mm B. 0.9 mm C. 9 mm D. 36 mm
(For item numbers 28-30) Study the diagram below, then answer the questions that follow.
TO WATER TANK

28.How many 90-degree elbows were used?

30. What joint connects the fuel line to the water tank?
A. Elbow B. Straight C. Tee D. Union
31.Which illustration shows 11mm reading?

A. B .

C. D.
32.Which illustration shows 7.1mm reading?

B. B .

C. D.
 33.Which illustration show the largest measurement?

C. B .

C. D.
34.Which symbol for water meter is illustrated correctly?

A. NM B. C. D.

35.Which tool looks well maintained?

A. B. C. D.

II. Direction: Identify whether the statement is TRUE or FALSE. Write your answer on the space
provided.
______36. All the tools needed must be gathered before starting a job.
______37. “Measure twice, cut once”
______38. It is not important to measure if you can estimate it.
______39. Reading symbols and diagrams is for professional plumbers only.
______40. The symbols used in plumbing diagrams are standard worldwide.
______41. Tools need NOT to be maintained if they are still new.
______42. ONLY expensive tools and equipment will last.
______43. Power tools function more efficiently when they are clean.
______44. The use of well-maintained tools boosts the confidence of a plumber.
______45. Proper storage is an important way of tools maintenance.

III. (For item numbers 46-50)Direction: Analyze how you could add a third faucet to the diagram for
items 28-30, then draw your modified schematic diagram inside the box below.

SCHEMATIC PUMBING DIAGRAM OF 3 FAUCETS