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