Electrical Components and Measuring Instruments Quiz

What is the primary function of an electrical instrument?

• To store data

• To provide electrical signals

• To measure temperature

• To convert energy

What type of current consists only of positive voltage?

• Alternating current (AC)

• Direct current (DC)

• Pulsating current

• Reactive current

Which of the following is a characteristic of alternating current (AC)?

• It consists only of positive voltage

• It consists of both positive and negative voltage

• It is always constant

• It cannot be transformed

What does a power supply do in an electrical circuit?

• Generates electrical signals

• Stores electrical energy

• Measures electrical resistance

• Provides electrical energy

In the context of electrical components, what does 'DC' stand for?

• Dual current

• Direct current

• Dynamic current

• Distributed current

Which of the following is NOT a function of electrical instruments?

• Generating heat

• Measuring voltage

• Providing electrical signals

• Measuring current

If a circuit has both positive and negative voltage, what type of current is it using?

• Direct current (DC)

• Pulsed current

• Alternating current (AC)

• Static current

Which of the following best describes the term 'workbench' in the context of electrical components?

• A power supply unit

• A surface for assembling electrical components

• A tool for measuring voltage

• A type of electrical instrument

Which of the following statements is true regarding electrical signals?

• They can be both direct and alternating

• They are only used in AC circuits

• They are always alternating

• They can only be generated by batteries

What is the role of a function generator in electrical circuits?

• To provide electrical signals

• To convert AC to DC

• To measure current

• To store energy