1. XC: is the letter(s) used to indicate capacitive reactance in a circuit.
A) XL, B) Z, C) HZ, D) XC
2. Conductors drawn from a copper-clad aluminum rod with the copper met-
allurgically bonded to an aluminum core. The copper forms a minimum of
percent of the csa.: 10
3. Relay contacts are made of .: Silver
4. Defined apparatus: The organization or system used for doing or operating
something
5. Operation of equipment in excess of normal, full-load rating, or of a conduc-
tor in excess of a rated capacity which, when it persists for a sufficient length
of time, would cause damage or dangerous overheating is called .-
: An overload
6. In an AC circuit a value of watts divided by a value of volt-amps, what should
the power factor be to indicate close to unity?: ( high power factor) = having a
high power factor, tells you, that the POWER FACTOR is close to unity(1.0). Which
is what you want in a circuit. Because that means that the power is IN PHASE and
this is called TRUE POWER. We don't want to have a low power factor, because
that means the circuit power is OUT OF PHASE , meaning that you have to much
inductance or capacitance, which is called APPARENT POWER.
7. A transformer core is made of .: Steel
8. Flexible metal conduit shall be secured by an proved means at intervals not
exceeding feet and within 12" on each side of every outlet box ,
junction box, cabinet, or fitting.: 4 1/2
9. An insulated conductor with a white or gray finish shall be permitted as
or conductor where permanently reidentified to indicate
its use, by painting or other effective means at its termination and at each
location where the conductor is visible and accessible: Hot or ungrounded
10. If the DC resistance of a #500 kcmil copper conductor 1000 feet in length
is .0258 ohm, the DC resistance for a #1000 kcmil copper conductor 1000
,feet in length would be ohm.: 0.0129, is because if you double the
cross-sectional area (csa) of a conductor it will reduce the resistance by 1/2.
.0258/2= .0129
11. Metal cabinets used for lighting circuit are grounded in order to
or .: Limit the voltage to ground or facilitate overcurrent device
operation
12. Encased with a material or composition or thickness that is not recognized
by the code as electrical insulation is defined as a covered .: Conductor
, 13. A overcurrent trip unit of a circuit breaker shall be connected in series with
each .: Ungrounded conductor
14. Receptacle outlets in a residence shall be installed so that no point along
the floor line in any wall space is ,measured horizontally, from an outlet
in that space.: More than 6'
15. In a 2-wire, 120v circuit, the black wire (hot) is a conductor and the
white wire is a conductor.: Ungrounded, grounded
16. Grounding conductor shall not be connected by .: Soldered fittings
17. You have 120v at the panel and 115v at the load. What is the percentage of
voltage drop?: 4.17%, (120v-115v=5v), you take the difference which is 5v, and
divide it by your original voltage 120v, 5v/120v=.0417, 4.17%
18. The ampacity of a solid or stranded conductor of the same material is the
same if it has the same .: Insulation
19. The is the service conductors between the terminals of the service
equipment and a point usually outside the building, clear of building walls,
where joined by tap or splice to the service drop.: Service entrance conductors,
overhead system
20. The minimum cover requirement for rigid nonmetallic conduit without
concrete encasement is inches.: 18"
21. It is good practice to use in a long horizontal straight run of
conduit.: Expansion
22. To find the circular - mil area of a stranded conductor, the most accurate
method is to .: Multiply the number of strands by the circular - mil area of
one strand
23. All equipment located within feet of the inside wall of a pool
shall be grounded.: 5
24. is equipment which utilizes electric energy for mechanical,
chemical, heating, lighting, or similar purposes.: Utilization equipment
25. Incandescent light bulbs when operated at a voltage less than the rated
voltage, will normally result in .: Longer bulb life
26. The lead covering on conductors is used .: For moisture proofing
27. A plug fuse contains a safety element composed of a piece of metal that
has a .: Low resistance and low melting point
28. DC voltage is reduced with a .: Resistor
29. The cord on a heating iron would most likely have an insulation of
.: Asbestos
30. The voltage of a circuit is best defined as .: The effective difference
of potential between two conductors
31. D.P.D.T. Letters would be used to identify a: Switch
A) XL, B) Z, C) HZ, D) XC
2. Conductors drawn from a copper-clad aluminum rod with the copper met-
allurgically bonded to an aluminum core. The copper forms a minimum of
percent of the csa.: 10
3. Relay contacts are made of .: Silver
4. Defined apparatus: The organization or system used for doing or operating
something
5. Operation of equipment in excess of normal, full-load rating, or of a conduc-
tor in excess of a rated capacity which, when it persists for a sufficient length
of time, would cause damage or dangerous overheating is called .-
: An overload
6. In an AC circuit a value of watts divided by a value of volt-amps, what should
the power factor be to indicate close to unity?: ( high power factor) = having a
high power factor, tells you, that the POWER FACTOR is close to unity(1.0). Which
is what you want in a circuit. Because that means that the power is IN PHASE and
this is called TRUE POWER. We don't want to have a low power factor, because
that means the circuit power is OUT OF PHASE , meaning that you have to much
inductance or capacitance, which is called APPARENT POWER.
7. A transformer core is made of .: Steel
8. Flexible metal conduit shall be secured by an proved means at intervals not
exceeding feet and within 12" on each side of every outlet box ,
junction box, cabinet, or fitting.: 4 1/2
9. An insulated conductor with a white or gray finish shall be permitted as
or conductor where permanently reidentified to indicate
its use, by painting or other effective means at its termination and at each
location where the conductor is visible and accessible: Hot or ungrounded
10. If the DC resistance of a #500 kcmil copper conductor 1000 feet in length
is .0258 ohm, the DC resistance for a #1000 kcmil copper conductor 1000
,feet in length would be ohm.: 0.0129, is because if you double the
cross-sectional area (csa) of a conductor it will reduce the resistance by 1/2.
.0258/2= .0129
11. Metal cabinets used for lighting circuit are grounded in order to
or .: Limit the voltage to ground or facilitate overcurrent device
operation
12. Encased with a material or composition or thickness that is not recognized
by the code as electrical insulation is defined as a covered .: Conductor
, 13. A overcurrent trip unit of a circuit breaker shall be connected in series with
each .: Ungrounded conductor
14. Receptacle outlets in a residence shall be installed so that no point along
the floor line in any wall space is ,measured horizontally, from an outlet
in that space.: More than 6'
15. In a 2-wire, 120v circuit, the black wire (hot) is a conductor and the
white wire is a conductor.: Ungrounded, grounded
16. Grounding conductor shall not be connected by .: Soldered fittings
17. You have 120v at the panel and 115v at the load. What is the percentage of
voltage drop?: 4.17%, (120v-115v=5v), you take the difference which is 5v, and
divide it by your original voltage 120v, 5v/120v=.0417, 4.17%
18. The ampacity of a solid or stranded conductor of the same material is the
same if it has the same .: Insulation
19. The is the service conductors between the terminals of the service
equipment and a point usually outside the building, clear of building walls,
where joined by tap or splice to the service drop.: Service entrance conductors,
overhead system
20. The minimum cover requirement for rigid nonmetallic conduit without
concrete encasement is inches.: 18"
21. It is good practice to use in a long horizontal straight run of
conduit.: Expansion
22. To find the circular - mil area of a stranded conductor, the most accurate
method is to .: Multiply the number of strands by the circular - mil area of
one strand
23. All equipment located within feet of the inside wall of a pool
shall be grounded.: 5
24. is equipment which utilizes electric energy for mechanical,
chemical, heating, lighting, or similar purposes.: Utilization equipment
25. Incandescent light bulbs when operated at a voltage less than the rated
voltage, will normally result in .: Longer bulb life
26. The lead covering on conductors is used .: For moisture proofing
27. A plug fuse contains a safety element composed of a piece of metal that
has a .: Low resistance and low melting point
28. DC voltage is reduced with a .: Resistor
29. The cord on a heating iron would most likely have an insulation of
.: Asbestos
30. The voltage of a circuit is best defined as .: The effective difference
of potential between two conductors
31. D.P.D.T. Letters would be used to identify a: Switch
