Nccer Plumbing Level 1
When you wear a hard hat, the space between your head and the shell of the hard hat should be
1 inch
A trench is a narrow excavation in which the depth is greater than the width and the width does not exceed
15 feet
The precent of all accidental deaths in the construction industry caused by slips, trips, and falls is
15%
The number of jaws that a bench vise has is
2
A student must complete_______hours of OJL per year, according to the office of Apprenticeship
2000
In order to prevent turbulence when more than one tee is installed in a line, a tube should have a minimum of
30" of tube between tees
In general, PVC pipes should be supported at a maximum intervals of
4 feet
When inspecting an impact tool, an indication that the tool may be dangerous is
A mushroomed head
The modern word for plumber is derived from the Latin word for
A person who works with lead
According to osha, a competent person is
A worker who can identify hazards and is authorized to take prompt corrective measures
To avoid possible damage to the pipes from freezing during sub freezing temperatures, water should be blown out of the pipe lines
After testing
You are offered a job by another contractor before you have fulfilled your current obligations. The professional response is to
Ask the contractor to wait until you have met your obligations
The hammer has a flat face Adobe striking and round face for aligning brackets and driving out bolts is called the
Ball peen hammer
Before assembling plastic pipe joints involving gaskets, such as ring-tight gasket fittings, you should
Bevel the spigot end of the pipe
If tee fittings are not properly installed, they can cause a condition known as
Bullheadibg
Reaming is a process after cutting pipe to remove
Burrs
All of the following are common valves used for water supply system except
Butterfly valve
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
Catalog drawings
The sign or tag that is used to tell workers about potential hazards or unsafe practices is a
Caution sign
What is a major concern when joining PVC and CPVC pipe when working in hot temperatures
Cement drying
The extension of the center line of the pip and the center line of the fitting intersect inside the fitting to create a
Center point
Participants in an NCCER training program receive all of the following except
Certification as a master plumber
Air-purifying respirator cartridge absorbs certain toxic vapors from the through
Charcoal
One simple way to help ensure a safe work site is to
Check the job site periodically and remove any clutter
The valve most often used for draining and freeze protection above ground is the
Compression, stop, and waste valve
Project managers are responsible for
Controlling the scope and direction of a plumbing business
Drawings of products that provide enough detail to show how the product is constructed are called
Cutaway drawing
To cut threads into galvanized and black-iron pipes, use
Dies
To measure a tube that had a fitting on one end only, use a
End-to-face measurement
To obtain the best protection from a respirator, you must perform a positive and negative fit check
Every time you wear it
To establish the limits of a measurements on a drawing, use
Extension lines
The layout of rooms in a building is shown on the
Floor plan
To identify where floor drains and DWVpipes may be installed beneath the basement floor, refer to the
Foundation plan
If your supervisor tells you to evacuate the worksite, you should
Go to a safe location and wait until you are notified that conditions are safe
Water that comes from laundry and bathtubs and reused in known as
Graywater
Type K copper tube is marked with the color code
Green
The two types of protection for opening in walls, floors, or the ground are
Guards and covers
Chisels,wedges, and punches are designed to be used with a
Hammer
The preferred tool for cutting tubing is a
Handheld cutter
Tubes that are measured in nominal or standard sizing have an OD that is
I/8" larger than nominal size
The sign or tag that is used to tell workers about general information not related to safety is an
Informational sign
Which of the following does not cause backflow
Insufficient levels of water
The proper function of a spirit level depends on
It's length
Section 4 of an SDS
List first aid measures
To remove tools from scaffolding, it is best to
Lower them to the ground using a rope
___________is the highest level of skill a craftsman can become in their craft profession
Master craftsman
People who develop, design, manufacture, and test mechanical devices are called
Mechanical engineers
Plumbers often use c-clamps to fasten pipe to
Metal structures
Suggested national plumbing standards are called
Model codes
Compared to other types of piping, copper tube and fittings are generally
More expensive
A common result of hammering a cold chisel is
Mushrooming
Type K, L, M, and DWV copper tubing are measured using
Nominal sizing
OHSA stands for
Occupational safety and health administration
The minimum standards for training programs in the United States are set by
Office of Apprenticeship
An example of thermosetting plastic is
PE
Solvent welding does t work for this material, so you must use heat fusion or mechanical joints and clamps when joining.
PE
When working on a roof, it is necessary to
Periodically sweep the roof to remove dirt and debris
Because it high temperature and chemicals, you cannot use solvent cement or heat fusion when joining pipe made from
Pex
When measuring plastic pipe before cutting you must take into account all of the following except
Pipe diameter
The most commonly used clamps used as vertical support for pipe and tubing are
Pipe riser clamp
Walking and working surfaces that are located above ground and sometimes over large equipment are called
Platforms
Lockout and tagout devices are used to
Protect workers from all possible sources of energy
To help turn a die tool by increasing the leverage on it use a
Ratchet stock
Because of its brute power, a tool that is useful for demolition is a
Reciprocating saw
Which kind of fitting connects pipes or different sizes
Reducers
LEED applies to all areas of the profession, except
Renovation
vertical and horizontal piping along with sizes and a riser number that refers back to the full set of plumbing drawings are shown on
Riser diagrams
The sign or tag that is used for general instructions and suggestions related to safety measures is a
Safety instruction sign
The act of showing the accrual building, room, or object reduced in proportion from full size to a smaller size is called
Scaling the drawing
The highest level of respiratory protection is provided by
Self-contained breathing apparatus
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
Self-feeding bit
ABS pipe absorbs heat
Slowly
The type of bit that works best for cutting wood and some plastics, but which should not be used to cut metal is the
Spade bit
The most important things to look for on an SDS are the
Specific hazards, personal protection requirements, handling procedures,first-aid information, and the emergency-response telephone number
To check for certain practices that must be used in installing and testing a plumbing system, a plumber refers to the
Specifications
A square that includes a try miter, protractor, and framing square in one tool is called a
Speed square
do not use a hacksaw when you need a cut that is
Square
Which is fathers following should you avoid when assembling bell-and-spigot plastic drain pipe?
Stabbing or swing pipe sections together
the type of cable also known as a ground key is the
Stop valve
To cut into a material using a chisel
Strike the top of the handle with a hammer
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
Take responsibility for the work done under your supervision
On a hacksaw, the more teeth per inch on a blade
The finer the cut and more debris
The SDS is a fact sheet prepared by
The product's manufacturer or importer
The distance that a pipe screws into a threaded fitting is called the
Thread makeup
A type of bit that is used to bore large holes in wood is the
Three tooth bites
A small level that is useful in confined areas or on short runs of pipe is called a
Torpedo leveled
The level with a movable telescope to allow measurements in both the horizontal and vertical planes is called a
Transit level
To protect workers from the collapse of an excavation wall in an unshored excavation install a
Trench shield
A type of cutter used for cutting small-diameter l, soft material such as copper, brass, and aluminum tubing or thin-wall conduit is
Tube cutter
Check extension cords for a
UL label indicating wattage
During construction, plastic pipe should normally be stored outside under tarps in order to protect it from
Ultraviolet light
The non-profit_____________developed a system in 2000 they will certify a building as "green" meaning it is energy efficient
United States Green Building Council
Plot plans usually show
Utility easements
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
Variable speed drill
SDR is a fixed ratio between outside diameter and
Wall thickness
Which of the following system conditions does CPVC pipe have more resistance compared to copper pipe
Water hammer
When job site surfaces are wet or icy, you should
Wear shoes with cleats
The tool on which the blade should be beveled at a precise 25° angle is the
Wood chisel
Plumbers commonly us PR as tub because of its
strength, flexibility, and chemical-resistance properties
PEX tubing resists high temperatures and chemicals, so it must be joined by
using a crimp ring system