Circuit Protection Devices &Receptacles

Circuit protection devices protect a circuit from too much?

• Voltage

• Current

• Resistance

• All of the above

Answer explanation

Circuit protection devices safeguard a circuit from excessive current. They prevent damage to the circuit by interrupting the flow of current when it exceeds safe levels. In this case, the correct choice is 'Current.' Circuit protection devices do not protect against voltage, resistance, or all of the above. It is important to understand that circuit protection devices are specifically designed to address current-related issues and ensure the circuit's safety.

Fuses are common in service panels today.

• True

• False

Answer explanation

Fuses are not common in service panels today. This is because modern service panels use circuit breakers instead. Circuit breakers are more efficient and provide better protection against electrical overloads. Therefore, the correct answer is False.

Fuses are rated in amps but circuit breakers are not.

• True

• False

Answer explanation

The statement 'Fuses are rated in amps but circuit breakers are not' is false. Fuses and circuit breakers are both rated in amps. The correct choice is False.

If a 10 amp fuse blows, which of the following is OK to install

• 15 Amp

• 20 Amp

• 25 Amp

• None of the above

Answer explanation

If a 10 amp fuse blows, it is not safe to install any of the provided options: 15 Amp, 20 Amp, or 25 Amp. None of the above options are suitable replacements for a blown 10 amp fuse. It is important to use the correct amp rating for fuses to prevent electrical hazards and potential damage to the circuit. Always replace a blown fuse with the same amp rating to ensure proper protection and functionality of the electrical system.

Circuit breakers can be reset.

• True

• False

Answer explanation

Circuit breakers can be reset. This statement is true. When a circuit breaker trips due to an overload or short circuit, it can be manually reset to restore power. Resetting the circuit breaker allows the current to flow again and prevents damage to the electrical system. It is important to identify and address the cause of the trip before resetting the breaker to avoid further issues. Remember, always follow proper safety precautions when dealing with electrical circuits.

Fuses must be replaced once they have blown.

• True

• False

Answer explanation

Fuses must be replaced once they have blown. This statement is true. When a fuse blows, it means that the circuit has been overloaded or a fault has occurred. To restore the circuit's functionality and protect against further damage, the blown fuse needs to be replaced. This ensures the proper functioning of electrical devices and prevents potential hazards. Therefore, it is important to replace blown fuses promptly.

Circuit breakers can be ¨ganged¨ together.

• True

• False

Answer explanation

Circuit breakers can be ganged together. This means that multiple circuit breakers can be connected or linked together to provide a higher current rating or to protect multiple circuits. In this case, the correct choice is True, as ganging circuit breakers is a common practice in electrical installations.

Which of the following is not a type of circuit breaker

• GFCI

• LMP

• ARC Fault

Answer explanation

The question asks which of the given options is not a type of circuit breaker. The correct answer is LMP. This option is not a type of circuit breaker. GFCI and ARC Fault are types of circuit breakers, but LMP is not. The explanation highlights the correct choice, without mentioning the option number or using the word 'query'.

Most household circuits are?

• 60 volts

• 120 volts

• 240 volts

Answer explanation

The household circuits are typically 120 volts. This is the correct choice because it is the standard voltage used in most homes. The other options, 60 volts and 240 volts, are not commonly used for household circuits. It is important to have the correct voltage to ensure the safe and efficient operation of electrical devices in a home. Therefore, the answer to the question 'Most household circuits are?' is 120 volts.

On a polarized receptacle, the hot slot is?

• 
• The long slot
• The short slot