NCCER PLUMBING LEVEL 1 UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Question:
1. Water that comes from laundry and bathtubs and reused in known as
Answer:
Graywater
Question:
2. Suggested national plumbing standards are called
Answer:
Model codes
Question:
3. Your supervisor points out that you forgot to complete a step in the assembly of a drain in a DWV
system. One of the apprentices that you are supervising was a he person installing the drain. The
responsible action is to
Answer:
Take responsibility for the work done under your supervision
Question:
4. People who develop, design, manufacture, and test mechanical devices are called
Answer:
Mechanical engineers
Question:
5. Project managers are responsible for
Answer:
Controlling the scope and direction of a plumbing business
Question:
6. Which of the following does not cause backflow
Answer:
Insufficient levels of water
Question:
7. A type of cutter used for cutting small-diameter l, soft material such as copper, brass, and aluminum
tubing or thin-wall conduit is
Answer:
Tube cutter
Question:
8. To cut threads into galvanized and black-iron pipes, use
Answer:
Dies
, Question:
9. A type of bit that will bore holes in wood quickly and is good for drilling through floor joists and wall
studs, and for drilling in hard to reach areas is the
Answer:
Self-feeding bit
Question:
10. The distance that a pipe screws into a threaded fitting is called the
Answer:
Thread makeup
Question:
11. Plot plans usually show
Answer:
Utility easements
Question:
12. vertical and horizontal piping along with sizes and a riser number that refers back to the full set of
plumbing drawings are shown on
Answer:
Riser diagrams
Question:
13. ABS pipe absorbs heat
Answer:
Slowly
Question:
14. Which of the following system conditions does CPVC pipe have more resistance compared to copper
pipe
Answer:
Water hammer
Question:
15. An example of thermosetting plastic is
Answer:
PE
Question:
16. SDR is a fixed ratio between outside diameter and
Answer:
Wall thickness
Question:
17. Which kind of fitting connects pipes or different sizes
QUESTIONS AND CORRECT ANSWERS
Question:
1. Water that comes from laundry and bathtubs and reused in known as
Answer:
Graywater
Question:
2. Suggested national plumbing standards are called
Answer:
Model codes
Question:
3. Your supervisor points out that you forgot to complete a step in the assembly of a drain in a DWV
system. One of the apprentices that you are supervising was a he person installing the drain. The
responsible action is to
Answer:
Take responsibility for the work done under your supervision
Question:
4. People who develop, design, manufacture, and test mechanical devices are called
Answer:
Mechanical engineers
Question:
5. Project managers are responsible for
Answer:
Controlling the scope and direction of a plumbing business
Question:
6. Which of the following does not cause backflow
Answer:
Insufficient levels of water
Question:
7. A type of cutter used for cutting small-diameter l, soft material such as copper, brass, and aluminum
tubing or thin-wall conduit is
Answer:
Tube cutter
Question:
8. To cut threads into galvanized and black-iron pipes, use
Answer:
Dies
, Question:
9. A type of bit that will bore holes in wood quickly and is good for drilling through floor joists and wall
studs, and for drilling in hard to reach areas is the
Answer:
Self-feeding bit
Question:
10. The distance that a pipe screws into a threaded fitting is called the
Answer:
Thread makeup
Question:
11. Plot plans usually show
Answer:
Utility easements
Question:
12. vertical and horizontal piping along with sizes and a riser number that refers back to the full set of
plumbing drawings are shown on
Answer:
Riser diagrams
Question:
13. ABS pipe absorbs heat
Answer:
Slowly
Question:
14. Which of the following system conditions does CPVC pipe have more resistance compared to copper
pipe
Answer:
Water hammer
Question:
15. An example of thermosetting plastic is
Answer:
PE
Question:
16. SDR is a fixed ratio between outside diameter and
Answer:
Wall thickness
Question:
17. Which kind of fitting connects pipes or different sizes
