C-201 Electrical Systems 1 SACA Certification 2026/2027
Exam Questions with Detailed Verified Answers (100%
Correct Answers) | Already Graded A+
1. What type of drawing contains symbolic diagrams that use standard symbols
to show the components and connections?
schematic
assembly
detail
blueprint
process
2. Inductance is caused by
direct current
resistance in a circuit
capacitance in a circuit
a changing magnetic field
3. In a circuit with an inductor and a resistor, if the inductor is suddenly
disconnected from the power source, what will happen to the current in the
circuit?
The current will increase rapidly.
The current will continue to flow for a brief period due to the
energy stored in the inductor.
The current will immediately drop to zero.
The current will reverse direction.
,4. If a capacitor in a circuit is charged to 12 volts and then disconnected from
the power source, what will happen to the voltage across the capacitor over
time?
The voltage will drop to zero instantly.
The voltage will remain constant at 12 volts indefinitely.
The voltage will increase to 15 volts.
The voltage will gradually decrease as the capacitor discharges.
5. What type of transformer is used to step down voltages from higher levels
like 240VAC or 480VAC to a lower level such as 120VAC?
Auto transformer
Step-up transformer
Step-down transformer
Isolation transformer
6. Describe how voltage is distributed among loads in a parallel circuit.
In a parallel circuit, voltage is determined by the load with the highest
resistance.
In a parallel circuit, voltage is only applied to the first load in the
series.
In a parallel circuit, each load receives the full voltage of the
source, regardless of the other loads.
In a parallel circuit, voltage is divided equally among all loads.
7. If a 1200 Watt 3-phase motor is connected to a 240VAC source, what is the
current flowing to the motor?
, 2.88 A
3.06 A
5A
4.16 A
8. Describe how an inductor's behavior changes when exposed to a constant
DC current.
An inductor initially resists changes in current but eventually allows
current to flow freely, acting like a short circuit.
An inductor continuously blocks current flow, acting like an open
circuit.
An inductor converts DC current into AC current.
An inductor stores energy like a capacitor, regardless of current type.
9. What term describes the current that is consistent throughout all components
in a series circuit?
Parallel current
Voltage drop
Series current
Resistance
10. What is the significance of a blown fuse in an electrical circuit?
It indicates a short circuit.
It indicates a faulty transformer.
It indicates a surge in voltage.
It indicates a break in continuity.
, 11. What is the term used to describe the property of a coil that influences the
current and voltage in a secondary coil?
Resistance
Inductance
Impedance
Capacitance
12. If the current in a circuit increases to 10 amps while the resistance remains at
10 ohms, what will the new voltage be?
50 volts
100 volts
1 volt
10 volts
13. Electricity is best defined as the
pressure required to move electrons through a conductor
movement of electrons along a path called a conductor
none of the above
strength required to push electrons through a conductor
14. Describe the behavior of current in a series circuit and how it differs from a
parallel circuit.
In a series circuit, the same current flows through all components,
while in a parallel circuit, the current can vary across different
branches.
Exam Questions with Detailed Verified Answers (100%
Correct Answers) | Already Graded A+
1. What type of drawing contains symbolic diagrams that use standard symbols
to show the components and connections?
schematic
assembly
detail
blueprint
process
2. Inductance is caused by
direct current
resistance in a circuit
capacitance in a circuit
a changing magnetic field
3. In a circuit with an inductor and a resistor, if the inductor is suddenly
disconnected from the power source, what will happen to the current in the
circuit?
The current will increase rapidly.
The current will continue to flow for a brief period due to the
energy stored in the inductor.
The current will immediately drop to zero.
The current will reverse direction.
,4. If a capacitor in a circuit is charged to 12 volts and then disconnected from
the power source, what will happen to the voltage across the capacitor over
time?
The voltage will drop to zero instantly.
The voltage will remain constant at 12 volts indefinitely.
The voltage will increase to 15 volts.
The voltage will gradually decrease as the capacitor discharges.
5. What type of transformer is used to step down voltages from higher levels
like 240VAC or 480VAC to a lower level such as 120VAC?
Auto transformer
Step-up transformer
Step-down transformer
Isolation transformer
6. Describe how voltage is distributed among loads in a parallel circuit.
In a parallel circuit, voltage is determined by the load with the highest
resistance.
In a parallel circuit, voltage is only applied to the first load in the
series.
In a parallel circuit, each load receives the full voltage of the
source, regardless of the other loads.
In a parallel circuit, voltage is divided equally among all loads.
7. If a 1200 Watt 3-phase motor is connected to a 240VAC source, what is the
current flowing to the motor?
, 2.88 A
3.06 A
5A
4.16 A
8. Describe how an inductor's behavior changes when exposed to a constant
DC current.
An inductor initially resists changes in current but eventually allows
current to flow freely, acting like a short circuit.
An inductor continuously blocks current flow, acting like an open
circuit.
An inductor converts DC current into AC current.
An inductor stores energy like a capacitor, regardless of current type.
9. What term describes the current that is consistent throughout all components
in a series circuit?
Parallel current
Voltage drop
Series current
Resistance
10. What is the significance of a blown fuse in an electrical circuit?
It indicates a short circuit.
It indicates a faulty transformer.
It indicates a surge in voltage.
It indicates a break in continuity.
, 11. What is the term used to describe the property of a coil that influences the
current and voltage in a secondary coil?
Resistance
Inductance
Impedance
Capacitance
12. If the current in a circuit increases to 10 amps while the resistance remains at
10 ohms, what will the new voltage be?
50 volts
100 volts
1 volt
10 volts
13. Electricity is best defined as the
pressure required to move electrons through a conductor
movement of electrons along a path called a conductor
none of the above
strength required to push electrons through a conductor
14. Describe the behavior of current in a series circuit and how it differs from a
parallel circuit.
In a series circuit, the same current flows through all components,
while in a parallel circuit, the current can vary across different
branches.
