chapter 6

T or F A b and is loosely twisted hemp fiber impregnated with tar or a tar derivative that is used for caulking seams and packing joints.

False

T or F A cutter wheel does remove metal from a pipe.

False

T or F Genuine thread-cutting oils are natural and achieve maximum thread-cutting performance.

False

T or F Manual receding pipe threader dies, which are much narrower than full-width dies, have more teeth in contact with the pipe.

False

T or F Most pipe-threading machines are made with universal die heads that allow for the use of only one die head to thread the most common sizes of pipe used for threaded joints.

False

T or F Power drives provide the turning power needed to rotate the die head around the pipe or to turn the pipe while the die head is held by the operator's other hand.

False

T or F S waging is the process of shrinking a tube in order to form a socket.

False

___ is controlled by the operator pumping a hydraulic foot pedal, which pushes the spinning cutting wheel through the pipe.

Feed rate

____________________ pipe reamers have long tapered flutes that will not dig into the pipe.

Straight-cut

____________________ is the process of mechanically forming tee fittings when a branch collar, or tee, is extruded from the wall of tubing in a continuous operation.

Tee pulling

T or F An impact wrench must not be used after the visual installation guidelines for the coupling are achieved.

True

T or F Cut grooving is a process in which material is removed from the outside diameter of a pipe end to create a groove that is used to accept the housing of a grooved joint coupling.

True

T or F Ratchet cutters are available in models that can be tightened manually with a ratchet handle and socket or with an impact wrench.

True

T or F Tee-pulling is a fast and easy process that eliminates the need for various tee fittings used in tube systems.

True

T or F The most common and accurate method of cutting pipe for threading is with a pipe cutter.

True

___ is a pipelike, thin-walled conductor that cannot receive standard tapered pipe threads.

Tube

A ___ joint can create a permanent seal on a variety of pipe and tubing materials.

grooved

A(n) ____________________ is a portable pipe-threading tool that uses an electric motor to provide the turning power needed to turn dies for threading pipe.

handheld power drive

A ___ caulked joint will require a running rope placed around the hub end with the ends fastened together at the top of the joint to allow a pouring hole and a dam to hold the lead in the hub.

horizontal

A ___ cutter is a cutting tool used to cut cast iron soil pipe that consists of a chain with lugs and cutting wheels that are powered by a hydraulic pump that tightens the chain to cut pipe.

hydraulic

A ___ flaring tool is a flaring tool that forms a flare when a feed screw is turned, forcing a flare cone into the end of tubing.

yoke-and-screw

The disadvantage of a single-wheel cutter is that it must be rotated ___° around the pipe several times to complete the cut.

360

Flare fiitings used in refrigeration, plumbing, and some industrial work have their ends flare to ___________ degree slope.

45

What type of bending tool can be used to bend heavy thick wall tubing like copper tubing types K,L,M ?

A geared ratchet lever bender.

Before flaring with the yoke and screw flaring tool what must be done to the flaring cone prior to flaring?

Add some type of lubricant oil like vacuum pump oil

____________________ is a method for joining tube and fittings using capillary action through the heating of the metals and the filling of the space between the tube and fittings with a filler metal at temperatures above 840°F (449°C).

Brazing

____________________ is a cold forming process in which a groove is pressed into the end of pipe or tubing to accept the housing of a grooved joint coupling.

Roll grooving

For maximum contraction, pipe ends must be ___ within a coupling.

butted

A ___ is used to remove a burr to prepare a tube for joining and assembly.

deburring tool

A(n) ____________________ is a device in which dies, in most cases four dies, are mounted in the proper configuration to cut the required taper thread.

die head

A(n) ___ is a heating device that uses two concave carbon tips that make contact with a pipe fitting and heat the circumference of the pipe as solder is applied.

electric soldering tool

T or F Each method of cutting pipe leaves some form of burr on the inside of a pipe, which must be removed after threading.

false

A ___ is an electric, motor-driven machine that centers and secures pipe and rotates it while cutting, threading, and reaming tasks are performed.

mounted power drive

A ___ pipe threader is a manual pipe-threading tool that has die heads and guides for three sizes of pipe mounted in a single body and does not have a ratcheting mechanism.

nonratcheting

A(n) ____________________ is a cutting tool that is used to make square cuts on pipe and consists of one or more cutting wheels fastened to a rigid frame that may contain rollers.

pipe cutter

A(n) ____________________ is a pipe-threading tool that cuts external threads in pipe.

pipe die

A ___ fitting is a mechanical connection that joins various types of pipe and tubing with a crimping tool that affixes an O-ring seal fitting to the tubing or pipe.

pressed

Name me three types of swaging tool.

punch type, tube expander, screw type

A(n) ____________________ swaging tool is a swaging tool that has a long nose guide that centers the tool in the tubing and is driven into the end of tube with a ball-peen hammer to form a swage.

punch-type

A(n) ____________________ is a stainless steel clamp assembly that holds no-hub cast iron soil pipe ends or fittings together and is secured in position with 5/16 ² hex nut bands on the stainless steel clamp.

shielded coupling

A thread should be tapered, ___, and cut to the correct taper, lead, thread angle, and diameter.

smooth

A(n) ____________________ is a cutting tool used to cut cast iron soil pipe that consists of a chain with lugs and cutting wheels attached to a lever assembly with two long handles.

snap cutter

A(n) ____________________ is a hand tool with lever and pulling chains that provides the leverage necessary to pull hub and spigot ends or fittings together when assembling a hub-and-spigot joint.

soil pipe assembly tool

________ is the method of joining tube and fittings using capillary actions between the tube and fitting with a solder alloy that melts below 840 degree Fahrenheit.

soldering

A ___ bender is a tube bending tool for free-form bending of annealed tube or fixture supply tubing from 1/4 ² to 3/4 ² in size.

spring

A(n) ____________________ joint is made when the threaded external, or male, end of a pipe is screwed into the manufactured internal, or female, threads of a coupling or fitting.

threaded

T or F A receding die is a die that is considerably less wide than the length of the required thread.

true

T or F The type of pipe or tubing, the application, and the productivity needed determines which type of joining method is used.

true

A(n) ____________________ is a manually operated cutter that cuts a curved notch and produces two dimples simultaneously on the branch tube.

tube end notcher

A(n) ____________________ is a cutting tool that is used to make square cuts on tube and consists of a cutting wheel and rollers attached to a rigid frame.

tubing cutter