What is a primary danger associated with damaged insulation?

• Electric shocks
• Increased voltage
• Higher resistance
• Reduced current

Why do thin wires pose a risk when carrying high currents?

• They can conduct more voltage
• They can overheat
• They increase resistance
• They reduce current flow

In what condition is the risk of electric shock increased?

• Dry weather
• Damp conditions
• High temperatures
• Low humidity

What is the function of a fuse in an electrical circuit?

• To increase current flow
• To melt and break the circuit when current is too high
• To store electrical energy
• To measure voltage

Which of the following is a common rating for fuses?

• 1A
• 3A
• 10A
• 20A

How does a circuit breaker protect an electrical circuit?

• By increasing the voltage
• By melting when current is too high
• By automatically disconnecting the circuit
• By storing excess current

What is the purpose of an earth wire?

• To increase current flow
• To provide a safe path for current in case of a fault
• To measure resistance
• To reduce voltage

What does double insulation do?

• Increases current flow
• Ensures live parts are not accessible
• Reduces the need for fuses
• Increases voltage

What happens when the current exceeds the limit of a fuse?

• The fuse continues to operate
• The fuse melts
• The circuit breaker activates
• The voltage increases

Which of the following is NOT a protective device?

• Fuse
• Circuit breaker
• Resistor
• Earth wire