ELECTRICAL SYSTEMS 1 SACA
CERTIFICATION STUDY GUIDEEXAM
WITH ACTUAL CRRECT QUESTIONS AND
VERIFIED DETAILED
ANSWERS|FREQUENTLY TESTED
QUESTIONS AND SOLUTIONS|ALREADY
GRADED A+|NEWEST|GUARANTEED PASS
2026/202
Types of electrical current
Direct current (DC) and alternating current (AC).
Circuit tester
A device used to test the presence of voltage in an electrical circuit.
Components of an electrical circuit
Power source, load, conductor, and control device.
Types of power supplies
DC power supply and AC power supply.
Schematic symbols
Visual representations of electrical components used in electrical schematics.
Manual switch operators
Toggle switch, push button switch, selector switch, key switch, and rotary switch.
Electrical output devices
Lamp, motor, solenoid, buzzer, and relay.
Voltage
The electrical potential difference between two points in a circuit. Unit of measurement: volts (V).
Voltmeter
1|Page
, A device used to measure voltage in an electrical circuit.
Voltage characteristics in series and parallel circuits
In series circuits, voltage adds up. In parallel circuits, voltage is the same across all components.
Current
The flow of electric charge in a circuit. Unit of measurement: amperes (A).
Ammeter
A device used to measure current in an electrical circuit.
Current characteristics in series and parallel circuits
In series circuits, current is the same across all components. In parallel circuits, current adds up.
Ohmmeter
A device used to measure resistance in an electrical circuit.
Resistance characteristics in series and parallel circuits
In series circuits, resistance adds up. In parallel circuits, the total resistance is less than the smallest
resistance.
Continuity
The uninterrupted flow of current in an electrical circuit.
Metric prefixes used on DMM
Mega (M), kilo (K), milli (m), micro (μ).
Digital multimeter (DMM)
A device used to measure voltage, current, and resistance in an electrical circuit.
Basic electrical units of measurement
Volt (V), ampere (A), ohm (Ω).
Series and parallel resistance
The calculation of total resistance in series and parallel circuits.
Ohm's Law
A mathematical equation relating voltage, current, and resistance in an electrical circuit.
Kirchhoff's Voltage Law
The sum of voltage drops in a series circuit is equal to the applied voltage.
Series and parallel voltage
2|Page
CERTIFICATION STUDY GUIDEEXAM
WITH ACTUAL CRRECT QUESTIONS AND
VERIFIED DETAILED
ANSWERS|FREQUENTLY TESTED
QUESTIONS AND SOLUTIONS|ALREADY
GRADED A+|NEWEST|GUARANTEED PASS
2026/202
Types of electrical current
Direct current (DC) and alternating current (AC).
Circuit tester
A device used to test the presence of voltage in an electrical circuit.
Components of an electrical circuit
Power source, load, conductor, and control device.
Types of power supplies
DC power supply and AC power supply.
Schematic symbols
Visual representations of electrical components used in electrical schematics.
Manual switch operators
Toggle switch, push button switch, selector switch, key switch, and rotary switch.
Electrical output devices
Lamp, motor, solenoid, buzzer, and relay.
Voltage
The electrical potential difference between two points in a circuit. Unit of measurement: volts (V).
Voltmeter
1|Page
, A device used to measure voltage in an electrical circuit.
Voltage characteristics in series and parallel circuits
In series circuits, voltage adds up. In parallel circuits, voltage is the same across all components.
Current
The flow of electric charge in a circuit. Unit of measurement: amperes (A).
Ammeter
A device used to measure current in an electrical circuit.
Current characteristics in series and parallel circuits
In series circuits, current is the same across all components. In parallel circuits, current adds up.
Ohmmeter
A device used to measure resistance in an electrical circuit.
Resistance characteristics in series and parallel circuits
In series circuits, resistance adds up. In parallel circuits, the total resistance is less than the smallest
resistance.
Continuity
The uninterrupted flow of current in an electrical circuit.
Metric prefixes used on DMM
Mega (M), kilo (K), milli (m), micro (μ).
Digital multimeter (DMM)
A device used to measure voltage, current, and resistance in an electrical circuit.
Basic electrical units of measurement
Volt (V), ampere (A), ohm (Ω).
Series and parallel resistance
The calculation of total resistance in series and parallel circuits.
Ohm's Law
A mathematical equation relating voltage, current, and resistance in an electrical circuit.
Kirchhoff's Voltage Law
The sum of voltage drops in a series circuit is equal to the applied voltage.
Series and parallel voltage
2|Page
