C-201 Electrical Systems 1 SACA Certification 2026 | Latest
Update | Exam Prep Questions & Answers | Graded A+
1. Which of the following best describes what inductance measures?
the amount of emf supplied to a circuit
the opposition to the rate of change of current in a circuit
the speed at which light travels
the amount of resistance in a circuit
the opposition to the current in a circuit
2. If you find a short circuit in a device that is still powered on, what immediate
action should you take before proceeding with troubleshooting?
Use a multimeter to test resistance immediately.
Locate the source of the short without turning off the power.
Turn off the power to the device.
Check for visible damage first.
3. A push button that makes or breaks a circuit only while it is being pressed is
known as which type of switch?
Momentary
Maintained
Actuated
de activated
4. What is the function of a transformer?
it steps up or down a DC voltage?
, it transforms a AC current into a DC current
It steps up or down an AC voltage
it transforms a DC current into an AC current
5. The load in an electrical circuit
Can turn the circuit on or off by blocking or opening the circuit
Transforms electrical energy into other forms of energy
Is the source of electric energy
Is the wire through which electric current flows
6. Describe how the total resistance in a series circuit is affected by adding
more resistors.
The total resistance is only affected by the largest resistor added.
Adding more resistors in a series circuit decreases the total resistance.
The total resistance remains constant regardless of the number of
resistors.
Adding more resistors in a series circuit increases the total
resistance.
7. What is an electrical load?
An electrical device that requires power to operate
The power coming into a unit, usually labeled L1 and L2
A problem in a circuit that makes the electricity work harder, reducing
efficiency
Any device in an electrical circuit
,8. One millionth of an ampere is a:
Kiloamp
Nanoamp
Milliamp
Microamp
9. Describe the significance of using a circuit tester correctly when checking a
circuit.
Using a circuit tester can replace the need for circuit diagrams.
Using a circuit tester is only important for troubleshooting.
Using a circuit tester is only necessary for high voltage circuits.
Using a circuit tester correctly ensures safety and accurate readings
of electrical current.
10. If an inductor in a power supply is damaged and fails to store energy, what
effect would this likely have on the output voltage?
Output voltage would fluctuate significantly.
Output voltage would increase steadily.
Output voltage would remain stable.
Output voltage would decrease to zero.
11. Describe how a capacitor's behavior changes with frequency in an AC circuit.
A capacitor only allows DC to pass through.
A capacitor allows AC to pass through, acting as a short circuit at
low frequencies and an open circuit at high frequencies.
, A capacitor blocks AC completely regardless of frequency.
A capacitor behaves the same at all frequencies.
12. Most electrical circuits have four main parts:
source, load, conductors, and a control device
control circuitry, control devices, load, and a transformer
source, conductors, insulation, and a control device
instrumentation, source, control circuitry, and a transformer
13. Resistance in a circuit is:
opposition to voltage
the same as voltage
opposition to current
the same as current
14. What happens to voltage in a series circuit? (STS 6.4)
In a parallel circuit, the sum of the voltages consumed by each
individual resistance is equal to the source voltage
In a series circuit, the sum of the voltages consumed by each
individual resistance is equal to the source voltage
In a series circuit, the sum of the current consumed by each individual
resistance is equal to the source current
In a series-parallel circuit, the sum of the voltages consumed by each
individual resistance is equal to the source voltage
15. What is the formula used to calculate total resistance in a parallel circuit?
Update | Exam Prep Questions & Answers | Graded A+
1. Which of the following best describes what inductance measures?
the amount of emf supplied to a circuit
the opposition to the rate of change of current in a circuit
the speed at which light travels
the amount of resistance in a circuit
the opposition to the current in a circuit
2. If you find a short circuit in a device that is still powered on, what immediate
action should you take before proceeding with troubleshooting?
Use a multimeter to test resistance immediately.
Locate the source of the short without turning off the power.
Turn off the power to the device.
Check for visible damage first.
3. A push button that makes or breaks a circuit only while it is being pressed is
known as which type of switch?
Momentary
Maintained
Actuated
de activated
4. What is the function of a transformer?
it steps up or down a DC voltage?
, it transforms a AC current into a DC current
It steps up or down an AC voltage
it transforms a DC current into an AC current
5. The load in an electrical circuit
Can turn the circuit on or off by blocking or opening the circuit
Transforms electrical energy into other forms of energy
Is the source of electric energy
Is the wire through which electric current flows
6. Describe how the total resistance in a series circuit is affected by adding
more resistors.
The total resistance is only affected by the largest resistor added.
Adding more resistors in a series circuit decreases the total resistance.
The total resistance remains constant regardless of the number of
resistors.
Adding more resistors in a series circuit increases the total
resistance.
7. What is an electrical load?
An electrical device that requires power to operate
The power coming into a unit, usually labeled L1 and L2
A problem in a circuit that makes the electricity work harder, reducing
efficiency
Any device in an electrical circuit
,8. One millionth of an ampere is a:
Kiloamp
Nanoamp
Milliamp
Microamp
9. Describe the significance of using a circuit tester correctly when checking a
circuit.
Using a circuit tester can replace the need for circuit diagrams.
Using a circuit tester is only important for troubleshooting.
Using a circuit tester is only necessary for high voltage circuits.
Using a circuit tester correctly ensures safety and accurate readings
of electrical current.
10. If an inductor in a power supply is damaged and fails to store energy, what
effect would this likely have on the output voltage?
Output voltage would fluctuate significantly.
Output voltage would increase steadily.
Output voltage would remain stable.
Output voltage would decrease to zero.
11. Describe how a capacitor's behavior changes with frequency in an AC circuit.
A capacitor only allows DC to pass through.
A capacitor allows AC to pass through, acting as a short circuit at
low frequencies and an open circuit at high frequencies.
, A capacitor blocks AC completely regardless of frequency.
A capacitor behaves the same at all frequencies.
12. Most electrical circuits have four main parts:
source, load, conductors, and a control device
control circuitry, control devices, load, and a transformer
source, conductors, insulation, and a control device
instrumentation, source, control circuitry, and a transformer
13. Resistance in a circuit is:
opposition to voltage
the same as voltage
opposition to current
the same as current
14. What happens to voltage in a series circuit? (STS 6.4)
In a parallel circuit, the sum of the voltages consumed by each
individual resistance is equal to the source voltage
In a series circuit, the sum of the voltages consumed by each
individual resistance is equal to the source voltage
In a series circuit, the sum of the current consumed by each individual
resistance is equal to the source current
In a series-parallel circuit, the sum of the voltages consumed by each
individual resistance is equal to the source voltage
15. What is the formula used to calculate total resistance in a parallel circuit?
