4. Shielded Metal Arc Welding: Preparation & Safety UPDATED ACTUAL Questions and CORRECT Answers
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Course
Shielded Metal Arc Welding
Institution
Shielded Metal Arc Welding
4. Shielded Metal Arc Welding: Preparation
& Safety UPDATED ACTUAL Questions
and CORRECT Answers
Constant Current Welding - CORRECT ANSWER- maintains a stable amperage supply
at all times; used for shielded metal arc
welding and gas tungsten arc welding
Constant Voltage Welding - CORRECT A...
4. Shielded Metal Arc Welding: Preparation
& Safety UPDATED ACTUAL Questions
and CORRECT Answers
Constant Current Welding - CORRECT ANSWER✔✔- maintains a stable amperage supply
at all times; used for shielded metal arc
welding and gas tungsten arc welding
Constant Voltage Welding - CORRECT ANSWER✔✔- maintains a stable voltage supply at
all times; used for gas metal arc welding,
flux cord arc welding and submerged arc welding
Transformer Machine - CORRECT ANSWER✔✔- welding machine which produces AC
current only
Transformer/Rectifier Machine - CORRECT ANSWER✔✔- welding machine which
produces AC and DC current
Inverter Machine - CORRECT ANSWER✔✔- welding machine which produces constant
current and constant voltage along
with DC current
Amperage - CORRECT ANSWER✔✔- amount of current flowing through a machine
Voltage - CORRECT ANSWER✔✔- potential energy available to move a charge along a
path
Wattage - CORRECT ANSWER✔✔- total power used, both amperage and voltage
Alternating Current - CORRECT ANSWER✔✔- electricity alternates between negative and
positive in the current; also known
as AC current
, Direct Current - CORRECT ANSWER✔✔- electricity flows in one direction only, from
negative to positive in the circuit;
also known as DC Current
DC Electrode Positive - CORRECT ANSWER✔✔- arrangement of direct current arc
welding cables and leads in which the
electrode is the positive pole
DC Electrode Negative - CORRECT ANSWER✔✔- arrangement of direct current arc
welding cables and leads in which the
electrode is the negative pole
Duty Cycle - CORRECT ANSWER✔✔- percentage of time, in a ten minute period, a
machine can be used at a
particular amount of current
Magnetic Arc Blow - CORRECT ANSWER✔✔- welding defect which occurs when using
DC current, allowing a magnetic field
to build up around the arc
Electrical Circuit - CORRECT ANSWER✔✔- path which electricity follows
Open Voltage Circuit - CORRECT ANSWER✔✔- voltage available to start an arc
Power Supply - CORRECT ANSWER✔✔- another term for welding machine
Work Supply - CORRECT ANSWER✔✔- cable from the welding machine to the work
which carries a charge opposite
the electrode cable
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