NCCER PLUMBING LEVEL 1 CERTIFICATION
EVALUATION 2026 STUDY GUIDE
QUESTIONS AND ANSWERS
◉ Because of its brute power, a tool that is useful for demolition is a
Answer: Reciprocating saw
◉ A type of drill that is useful because it works on some materials
that are drill best at high speeds and others at lower speeds is the
Answer: Variable speed drill
◉ The type of bit that works best for cutting wood and some
plastics, but which should not be used to cut metal is the
Answer: Spade bit
◉ A type of bit that is used to bore large holes in wood is the
Answer: Three tooth bites
◉ 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
,◉ The extension of the center line of the pip and the center line of
the fitting intersect inside the fitting to create a
Answer: Center point
◉ The distance that a pipe screws into a threaded fitting is called the
Answer: Thread makeup
◉ The act of showing the accrual building, room, or object reduced
in proportion from full size to a smaller size is called
Answer: Scaling the drawing
◉ To establish the limits of a measurements on a drawing, use
Answer: Extension lines
◉ To check for certain practices that must be used in installing and
testing a plumbing system, a plumber refers to the
Answer: Specifications
◉ Plot plans usually show
Answer: Utility easements
, ◉ To identify where floor drains and DWVpipes may be installed
beneath the basement floor, refer to the
Answer: Foundation plan
◉ The layout of rooms in a building is shown on the
Answer: Floor plan
◉ 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
◉ Drawings that can be used to determine such factors as overall
dimensions, actual inside dimensions, fitting depth, and laying
length of the fittings are known as
Answer: Catalog drawings
◉ Drawings of products that provide enough detail to show how the
product is constructed are called
Answer: Cutaway drawing
◉ ABS pipe absorbs heat
Answer: Slowly
EVALUATION 2026 STUDY GUIDE
QUESTIONS AND ANSWERS
◉ Because of its brute power, a tool that is useful for demolition is a
Answer: Reciprocating saw
◉ A type of drill that is useful because it works on some materials
that are drill best at high speeds and others at lower speeds is the
Answer: Variable speed drill
◉ The type of bit that works best for cutting wood and some
plastics, but which should not be used to cut metal is the
Answer: Spade bit
◉ A type of bit that is used to bore large holes in wood is the
Answer: Three tooth bites
◉ 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
,◉ The extension of the center line of the pip and the center line of
the fitting intersect inside the fitting to create a
Answer: Center point
◉ The distance that a pipe screws into a threaded fitting is called the
Answer: Thread makeup
◉ The act of showing the accrual building, room, or object reduced
in proportion from full size to a smaller size is called
Answer: Scaling the drawing
◉ To establish the limits of a measurements on a drawing, use
Answer: Extension lines
◉ To check for certain practices that must be used in installing and
testing a plumbing system, a plumber refers to the
Answer: Specifications
◉ Plot plans usually show
Answer: Utility easements
, ◉ To identify where floor drains and DWVpipes may be installed
beneath the basement floor, refer to the
Answer: Foundation plan
◉ The layout of rooms in a building is shown on the
Answer: Floor plan
◉ 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
◉ Drawings that can be used to determine such factors as overall
dimensions, actual inside dimensions, fitting depth, and laying
length of the fittings are known as
Answer: Catalog drawings
◉ Drawings of products that provide enough detail to show how the
product is constructed are called
Answer: Cutaway drawing
◉ ABS pipe absorbs heat
Answer: Slowly
