CFESA ELECTRIC WIRE AND
APPLICATIONS EXAM QUESTIONS AND
ANSWERS 100% VERIFIED.
When checking voltage you must touch your meter leads where? - ANSWERAcross the
load
If you check each side of an element terminal to ground and you read 120 volts does
the element have voltage to it? - ANSWERNo ,the voltage must be checked across the
load
What is the problem with aluminum wire? - ANSWERoxidation, corrosion, expansion
and contraction
If aluminum wire is used what special precautions and accessories must be used? -
ANSWERSpecial anti oxidation paste must be used on connections and aluminum rates
lug connections or wire
What is MGS wire constructed of? - ANSWERNickel tinned copper wire mica insulation
and fiberglass braid
Which wire should be used on a pizza oven operating at 650 degrees? - ANSWERMGS
Which conductor can carry a higher current if they are the same gauge copper or
nickel? - ANSWERCopper
What conductor material is used for high temperature wire applications? -
ANSWERNickel
What is the advantage of nickel tinned copper wire? - ANSWERCarries copper wire
currents with nickel protection from the heat and oxidation
What are the two major downfalls of pure nickel wire? - ANSWERCost and carries a
lower amp capacity
What is TGGT wire constructed of? - ANSWERNickel tinned copper wire Teflon
insulation and fiberglass braid
What is special about SO or SJO cord that makes it desirable in the commercial
foodservice industry? - ANSWERGrease and oil resistant
Ground wires must always be what color(s)? - ANSWERGreen or bare wire
APPLICATIONS EXAM QUESTIONS AND
ANSWERS 100% VERIFIED.
When checking voltage you must touch your meter leads where? - ANSWERAcross the
load
If you check each side of an element terminal to ground and you read 120 volts does
the element have voltage to it? - ANSWERNo ,the voltage must be checked across the
load
What is the problem with aluminum wire? - ANSWERoxidation, corrosion, expansion
and contraction
If aluminum wire is used what special precautions and accessories must be used? -
ANSWERSpecial anti oxidation paste must be used on connections and aluminum rates
lug connections or wire
What is MGS wire constructed of? - ANSWERNickel tinned copper wire mica insulation
and fiberglass braid
Which wire should be used on a pizza oven operating at 650 degrees? - ANSWERMGS
Which conductor can carry a higher current if they are the same gauge copper or
nickel? - ANSWERCopper
What conductor material is used for high temperature wire applications? -
ANSWERNickel
What is the advantage of nickel tinned copper wire? - ANSWERCarries copper wire
currents with nickel protection from the heat and oxidation
What are the two major downfalls of pure nickel wire? - ANSWERCost and carries a
lower amp capacity
What is TGGT wire constructed of? - ANSWERNickel tinned copper wire Teflon
insulation and fiberglass braid
What is special about SO or SJO cord that makes it desirable in the commercial
foodservice industry? - ANSWERGrease and oil resistant
Ground wires must always be what color(s)? - ANSWERGreen or bare wire
