Smarthomes

What does the variable V represent in the equation V=IR?

• Current

• Voltage

• Resistance

What type of shoes are best for electrical work?

• Rubber-soled shoes

• Flip-flops

• High heels

In a circuit with a voltage of 24 Volts and a current of 3 Amperes, what is the resistance?

• 8 Ohms

• 12 Ohms

• 6 Ohms

• 21 Ohms

What should you do before working on electrical equipment?

• Wear rubber gloves

• Turn off the power

• Use a ladder

What is the safest way to handle a frayed cable?

• Pull on it to see if it works

• Disconnect it from the power source

• Ignore it if it looks fine

Which type of current flows in one direction only?

• AC

• DC

• Both AC & DC

Which of the following is a common source of DC?

• Generators

• Batteries

• Wall outlets

What advantage do smart locks offer over traditional locks?

• They are always unlocked

• They can be controlled remotely

• They are cheaper

“_______” refers to Adjusting the brightness level.

The primary goal of energy efficiency in smart home systems is ______ energy consumption and costs.