What is the primary function of a circuit breaker in electrical systems?
Correct!
Wrong!
A circuit breaker protects electrical circuits by interrupting current flow during overload or fault conditions.
Which component is used to step down voltage in electrical distribution systems?
Correct!
Wrong!
Transformers reduce voltage levels for safe distribution and use.
What is the typical purpose of a grounding system in electrical equipment?
Correct!
Wrong!
Grounding prevents electrical shock and ensures safety by providing a path for fault current.
Which device is used to measure electrical current?
Correct!
Wrong!
An ammeter measures the flow of current in amperes.
What is the primary role of an electrical relay?
Correct!
Wrong!
A relay electrically isolates and controls a high power circuit with a low power signal.
Which type of maintenance is performed to prevent equipment failure before it occurs?
Correct!
Wrong!
Preventive maintenance is scheduled regularly to avoid breakdowns.
Loading Questions...
What is the purpose of insulation in electrical wiring?
Correct!
Wrong!
Insulation prevents current leakage and protects against electrical shock.
Which standard electrical color code is commonly used for grounding wires?
Correct!
Wrong!
Green or green with yellow stripes are standard for grounding wires.
What does an ohmmeter measure?
Correct!
Wrong!
An ohmmeter measures electrical resistance in a circuit.