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What term correctly identifies the reduction in voltage, caused by resistance, that occurs between the power supply and the load? correct answers Voltage drop Which of the following lens shades is most effective at reducing the brilliancy of light and screening out the harmful infraded ultra- vi...

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Welding CDE – Arc || with 100% Error-free Solutions.
What term correctly identifies the reduction in voltage, caused by resistance, that occurs between
the power supply and the load? correct answers Voltage drop

Which of the following lens shades is most effective at reducing the brilliancy of light and
screening out the harmful infraded ultra- violet rays produced during arc welding? correct
answers #12 shade lens

What is the name of the metal joining process where two pieces of metal are heated to a point of
melting and the melted metals flow together? correct answers Fusion Welding

What electrical device is a necessary component of an electrical welding machine and is used to
step up or step down the voltage and amperage as needed to perform welding operations? correct
answers Transformer

Which of the following safety concerns related to welding is more likely to occur gradually over
an extended period of time? correct answers Hearing loss caused by extended exposure to
elevated sound levels

Which of the following statements is correct with respect to safety glasses while welding?
correct answers Safety glasses should be worn continuously while working with or near metal
working activities

In electrical terminology, what is the meaning of the abbreviation AC? correct answers
Alternating Current

On a basic constant current arc welding machine, what does the primary/main adjustment
control? correct answers Amperage

On a typical shielded metal arc welding E7018 electrode, the 70 indicates what value for tensile
strength? correct answers 70,000 psi tensile strength

What welding agency or entity does the acronym AWS indentify? correct answers American
Welding Society

Ductility is the ability of metal to do what before it breaks? correct answers Elongate

What is the length of the most commonly used electrode for the process of shielded metal arc
welding? correct answers 14 inches

What is a common name for the shielded metal arc welding process? correct answers Stick
welding

Which of the following terms describes the appropriate power source for the gas metal arc
welding process? correct answers Constant voltage

,What type of power supply is used for the flux core arc welding process? correct answers
Constant voltage

On a direct current arc welding machine, what electrical component converts the incoming
alternating current into direct current for welding? correct answers A rectifier

What is the name of the cleansing agent used to prevent the formation of oxides, release trapped
gases, and slag and cleanse the metal chemically during the welding, brazing, and/or soldering
process? correct answers Flux

What is the proper name for the stick welding process? correct answers Shielded metal arc
welding (SMAW)

The National Electric Manufacturers Association (NEMA) has classified electric arc welders
primarily by duty cycle. What is the minimum duty cycle rating of a NEMA Class I machine?
correct answers 60%

What is the recommended eye protection shade number for a welding helmet lens used when
welding with 1/8 inch electrode? correct answers No. 10 lens shade

Which of the following shielded metal arc welding electrodes is designated as a low hydrogen
electrode? correct answers E7018

What duty cycle rating is required for a welding machine that will operate at its maximum rating
for six minutes continually during a ten minute period? correct answers 60%

Which of the following is another name for the Arc Welding process that uses flux-coated metal
welding rods? correct answers Shielded Metal Arc Welding (SMAW)

The arc from an Arc Welder has a temperature of about 9000 degrees. Which of the following
variables will not affect the welding temperature? correct answers size (length) of the electrode

Direct Current (DC) welders produce current that flows in only one direction in accordance with
how the welder is set according to polarity. What is one way that the polarity can be changed on
the welding machine? correct answers Manually reverse the welding cables

Which of the following items would not be considered an essential safety item in a welding
shop? correct answers duct tape

Which of the following is recommended to be worn under the welding helmet for safety
protection of the eyes when accomplishing other tasks besides welding? correct answers clear
safety glasses

Generally the direction of travel for a right-handed welder when using a stick welding machine
would be from: correct answers left to right slowly and evenly across the plate

, Which of the following statements about arc length when welding is false? correct answers an
arc that is too long sounds like bacon frying

The first two digits in the AWS electrode classification number designates the: correct answers
tensile Strength

When welding, one bead or layer of filler metal is called a pass. What is the name given to the
first and most important pass in the weld? correct answers root pass

Which of the following are accepted welding positions? correct answers flat, horizontal, vertical,
overhead

Which of the following would be classified as a destructive type weld test? correct answers
guided bend

In the Shielded Metal Arc Welding process, impurities are floated out of the molten puddle to
form a deposit known as ______ that protects the weld as it cools. correct answers slag

Stainless steel is welded with electrodes which are classified by the: correct answers American
Iron and Steel Institute (AISI)

You must know the kind of metal to be welded before you can select an electrode. Which of the
following is an example of a ferrous metal? correct answers steel

What term is used to describe the continuous running time for which a welder was designed?
correct answers duty cycle

Which of the following would cause the brightest arc when welding? correct answers long arc
length

_____ welding is the welding of two pieces of metal at one or more points in order to hold the
pieces together temporarily while welding them. correct answers Tack

Which of the following is a type of corner joint? correct answers full open

The wire through which electric current travels is called a: correct answers conductor

What are probable results if the welding current is too high or the arc length is too great? correct
answers A wide, splattered, irregular weld

Which of the following is not a cause of undercutting? correct answers amperage set too low

Amperage (current) setting depends upon electrode type, size, position, and metal thickness and
should be adjusted correct answers when no welding is being done

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