Electrical Wiring: Industrial, 8th Canadian Edition
(Herman, 2022), Unit 1-22 | All Chapters
pg. 1
,The open-circuit voltage between the two terminals of a single-pole
switch on a lighting circuit when the switch is in the OFF position is -
ANSWER -120V
An arc flash can produce temperatures of ____°F. - ANSWER -35,000
For safety, it is very important that electrical equipment be "listed" by
the - ANSWER -A National Recognized Testing Laboratory (NRTL)
The National Electrical Code is revised every ____ years so as to be as
up to date as possible. - ANSWER -3
The term approved means to be - ANSWER -acceptable to the authority
having jurisdiction
As defined in Article 100, a dwelling unit has the following feature(s) -
ANSWER -permanent provisions for living, sleeping, cooking, and
sanitation
All measurements in the National Electrical Code are shown in which
system(s) of units? - ANSWER -both inch-pound and metric values
In the international system of units, the prefix kilo- means - ANSWER -
Thousand
pg. 2
,In the international system of units, the prefix milli- means - ANSWER -
one thousandth
Nationally Recognized Testing Laboratories (NRTL) ____ electrical
products to provide a basis for approval by inspectors in the field. -
ANSWER -test and list
Always ____________________ the power before working on an
electrical circuit. - ANSWER -shut off and lock out/tag out
Every time an electrician makes a decision concerning the electrical
wiring, the decision should be checked by reference to the - ANSWER -
The NEC
wire is sized in a gauge number and diameter in mills. what is 1 mill
equal to? - ANSWER -0.001''
the reason that a twisted pair of wires is used on a speed senor is to
prevent? - ANSWER -reduce electrical noise, that is induced from an
adjacent circuit.
the purpose of a weather pack pick is to? compress locking tang on a
wire terminal during removal. - ANSWER -
if a circuit breaker will reset after it cools down it is called a cycling
circuit breaker - ANSWER -true
pg. 3
, fibre optic wiring harness have a higher current carrying potential than
a similar sized copper wire. - ANSWER -false, fibre optics carry a light
not a current.
If a fibre optic cable is damaged by either being broken or having its
cladding damaged it should be replaced - ANSWER -true
when using an ohmmeter to determine if a fuse is okay or not if a digital
meter reads OL the fuse is - ANSWER -fualty or blown
when making a jumper wire what two key components should be used
to make it safer - ANSWER -install a fuse holder for to prevent excessive
current and use insulated alligator clips to prevent shorts
two circuits or drawn one with a half moon curve and one with an S -
ANSWER -circuit breaker is half moon and S is fuse
When soldering wires a 60/40 acid core solder should be used. -
ANSWER -false should be rosin core acid will cause premature corrosion
and failure
when soldering in a diode or transistor be sure to use a soldering gun
instead of a soldering iron - ANSWER -False smoldering iron gun causes
induced voltage
pg. 4
(Herman, 2022), Unit 1-22 | All Chapters
pg. 1
,The open-circuit voltage between the two terminals of a single-pole
switch on a lighting circuit when the switch is in the OFF position is -
ANSWER -120V
An arc flash can produce temperatures of ____°F. - ANSWER -35,000
For safety, it is very important that electrical equipment be "listed" by
the - ANSWER -A National Recognized Testing Laboratory (NRTL)
The National Electrical Code is revised every ____ years so as to be as
up to date as possible. - ANSWER -3
The term approved means to be - ANSWER -acceptable to the authority
having jurisdiction
As defined in Article 100, a dwelling unit has the following feature(s) -
ANSWER -permanent provisions for living, sleeping, cooking, and
sanitation
All measurements in the National Electrical Code are shown in which
system(s) of units? - ANSWER -both inch-pound and metric values
In the international system of units, the prefix kilo- means - ANSWER -
Thousand
pg. 2
,In the international system of units, the prefix milli- means - ANSWER -
one thousandth
Nationally Recognized Testing Laboratories (NRTL) ____ electrical
products to provide a basis for approval by inspectors in the field. -
ANSWER -test and list
Always ____________________ the power before working on an
electrical circuit. - ANSWER -shut off and lock out/tag out
Every time an electrician makes a decision concerning the electrical
wiring, the decision should be checked by reference to the - ANSWER -
The NEC
wire is sized in a gauge number and diameter in mills. what is 1 mill
equal to? - ANSWER -0.001''
the reason that a twisted pair of wires is used on a speed senor is to
prevent? - ANSWER -reduce electrical noise, that is induced from an
adjacent circuit.
the purpose of a weather pack pick is to? compress locking tang on a
wire terminal during removal. - ANSWER -
if a circuit breaker will reset after it cools down it is called a cycling
circuit breaker - ANSWER -true
pg. 3
, fibre optic wiring harness have a higher current carrying potential than
a similar sized copper wire. - ANSWER -false, fibre optics carry a light
not a current.
If a fibre optic cable is damaged by either being broken or having its
cladding damaged it should be replaced - ANSWER -true
when using an ohmmeter to determine if a fuse is okay or not if a digital
meter reads OL the fuse is - ANSWER -fualty or blown
when making a jumper wire what two key components should be used
to make it safer - ANSWER -install a fuse holder for to prevent excessive
current and use insulated alligator clips to prevent shorts
two circuits or drawn one with a half moon curve and one with an S -
ANSWER -circuit breaker is half moon and S is fuse
When soldering wires a 60/40 acid core solder should be used. -
ANSWER -false should be rosin core acid will cause premature corrosion
and failure
when soldering in a diode or transistor be sure to use a soldering gun
instead of a soldering iron - ANSWER -False smoldering iron gun causes
induced voltage
pg. 4
