CPT02a Lecture Prelim Exam

Electricity is defined as:

• The movement of protons in a circuit

• The flow of electrons through a conductor

• The flow of current through insulators

• The storage of charges in resistors

Which material is the best conductor?

• Aluminum

• Silver

• Gold

• Steel

Voltage is often compared to:

• The diameter of a pipe

• The pressure that pushes water in a pipe

• The volume of water flowing

• The resistance inside the pipe

Which device combines the functions of voltmeter, ammeter, and ohmmeter?

• Transformer

• Multimeter

• Capacitor

• Oscilloscope

In a breadboard, the bus strips are mainly used for:

• Placing resistors

• Power and ground rails

• Measuring resistance

• Holding ICs

When measuring current, a multimeter must be connected:

• In parallel with the circuit

• In series with the circuit

• Across the resistor

• To the ground only

Which type of multimeter shows values using a needle and scale?

• Digital Multimeter

• Analog Multimeter

• Hybrid Multimeter

• Smart Multimeter

Which of the following is an insulator?

• Copper

• Aluminum

• Glass

• Gold

What must be done before measuring resistance?

• Increase the range to maximum

• Turn off the power in the circuit

• Connect probes in series

• Use the 10A port

Which of the following is a general safety rule?

• Touch live wires with gloves only

• Overload outlets for faster testing

• Always check equipment before use

• Use longer wires for convenience