CSLB CONTRACTOR – ELECTRICAL B EXAM UPDATED 2025 2026 WITH ALL NEW QUESTION
AND EXACTLY RIGHT ANSWERS | A+ QUALITY GUARANTEE
Electrical Circuit
1. An consists of a power source,
conductors, and load
simple curcuit
2. A consists of only one energy
source, one conductor, and one load.
series curcuit
3. A simple has at least two loads.
The current flows along a single path and the com-
ponents are located one after another along this path
4. A simple , the voltage applied to
parallel curcuit
each branch is the same
5. what do arrows indicate
direction of current electron
6. Inside a DC power source (such as a battery) the
flow
electrons travel from the positive terminal to the
negative. Electrons traveling outside of the power
source (a circuit) electrons travel from the negative to the
positive terminal.
7. The continuous effective contact with all parts of an
continuity
electrical circuit to give it a high conductance (low
resistance).
8. What are two types of electric current? direct current and alternating current
power source
9. In any completed circuit, it takes a force to push the
electrons through the , conductor,
and load. The two types of force to push the elec-
,2|Page
trons of electric current are direct current (DC) and
alternating current(AC).
10. 1) Power output such as a power plant.
(2) A device to which power is delivered. load
(3) The demand upon the operating resource of a
system such as a telephone exchange system or circuit
of garden lights.
11. The polarity from power sources
never changes; that is, the current flows out of the direct current
negative terminal of the power source in the same
direction
12. power sources produce a voltage and current that alternating curent
has a constant change in polarity and magnitude at a
constant frequency, back and forth in a con- ductor.
flow is produced by a gen-
erator or an alternator.
13. The rate of flow reversal is called frequency
14. Nearly all AC power systems in U.S.A. operate at a 60 cycles per second (60 Hz)
frequency of
15. When an alternator produces AC voltage, the volt- AC waveforms
age switches polarity over time, but does so in a very
particular manner. When graphed over time, the
"wave" traced by this voltage of alternating po- larity
from an alternator takes on a distinct shape, known as
a sine wave.
16. conductance
,3|Page
is the property of metal that permits
current to flow
17. =conductance
1/resistance
18. is the opposite of conductance. It is the resistance
property that opposes the flow of electric cur- rent
and the friction opposition to the flow of elec- trons
19. is the total opposition to current flow in impedance
an ac circuit, is measured in ohms
20. Electron pressure is called electromotive force. The voltage
electromotive force literally means the force that
moves electrons. The unit of measure of this force is
the
21. Free electrons moving in the same direction in a current
conductor produce an electrical sometimes
called intensity (I). The rate at which electrons move is
measured by the unit called ampere (A).
22. is defined as the rate at which work is power
done
AND EXACTLY RIGHT ANSWERS | A+ QUALITY GUARANTEE
Electrical Circuit
1. An consists of a power source,
conductors, and load
simple curcuit
2. A consists of only one energy
source, one conductor, and one load.
series curcuit
3. A simple has at least two loads.
The current flows along a single path and the com-
ponents are located one after another along this path
4. A simple , the voltage applied to
parallel curcuit
each branch is the same
5. what do arrows indicate
direction of current electron
6. Inside a DC power source (such as a battery) the
flow
electrons travel from the positive terminal to the
negative. Electrons traveling outside of the power
source (a circuit) electrons travel from the negative to the
positive terminal.
7. The continuous effective contact with all parts of an
continuity
electrical circuit to give it a high conductance (low
resistance).
8. What are two types of electric current? direct current and alternating current
power source
9. In any completed circuit, it takes a force to push the
electrons through the , conductor,
and load. The two types of force to push the elec-
,2|Page
trons of electric current are direct current (DC) and
alternating current(AC).
10. 1) Power output such as a power plant.
(2) A device to which power is delivered. load
(3) The demand upon the operating resource of a
system such as a telephone exchange system or circuit
of garden lights.
11. The polarity from power sources
never changes; that is, the current flows out of the direct current
negative terminal of the power source in the same
direction
12. power sources produce a voltage and current that alternating curent
has a constant change in polarity and magnitude at a
constant frequency, back and forth in a con- ductor.
flow is produced by a gen-
erator or an alternator.
13. The rate of flow reversal is called frequency
14. Nearly all AC power systems in U.S.A. operate at a 60 cycles per second (60 Hz)
frequency of
15. When an alternator produces AC voltage, the volt- AC waveforms
age switches polarity over time, but does so in a very
particular manner. When graphed over time, the
"wave" traced by this voltage of alternating po- larity
from an alternator takes on a distinct shape, known as
a sine wave.
16. conductance
,3|Page
is the property of metal that permits
current to flow
17. =conductance
1/resistance
18. is the opposite of conductance. It is the resistance
property that opposes the flow of electric cur- rent
and the friction opposition to the flow of elec- trons
19. is the total opposition to current flow in impedance
an ac circuit, is measured in ohms
20. Electron pressure is called electromotive force. The voltage
electromotive force literally means the force that
moves electrons. The unit of measure of this force is
the
21. Free electrons moving in the same direction in a current
conductor produce an electrical sometimes
called intensity (I). The rate at which electrons move is
measured by the unit called ampere (A).
22. is defined as the rate at which work is power
done
