Electrical Safety & Measurement Assessment (40 Questions)

What is the main purpose of a breadboard?

• Permanently connect circuits

• Temporarily build and test circuits without soldering

• Store electrical energy

• Increase voltage

What happens if both legs of a resistor are placed in the same row on a breadboard?

• The resistor increases current

• The circuit works normally

• No current flows through the resistor

• The resistor overheats

What is the danger of creating a short circuit?

• It reduces voltage

• It increases resistance

• It allows excessive current that can damage components

• It improves circuit efficiency

What does a resistor primarily do in a circuit?

• Store energy

• Limit current

• Increase voltage

• Generate electricity

If a resistor value is too low, what is likely to happen?

• The circuit stops working

• Too little current flows

• Too much current flows and components may be damaged

• Voltage disappears

How are breadboard rows typically connected?

• Diagonally

• Randomly

• In groups across a row (e.g., a–e)

• Only vertically

Why should wires be kept short on a breadboard?

• To increase resistance

• To reduce clutter and prevent mistakes

• To increase voltage

• To store energy

What does an open circuit do?

• Allows unlimited current

• Stops current flow

• Increases voltage

• Reduces resistance

What does a short circuit do?

• Stops current

• Limits current

• Creates very low resistance and high current

• Increases resistance

Where should the black probe be plugged into a multimeter?

• V

• Ω

• COM

• A