Electronic Measurement Devices Quiz

What does the resolution of a Digital Multimeter (DMM) refer to?

The smallest increment of a quantity that it can measure. (correct)
The overall durability of the device.
The maximum voltage it can measure.
The average of measured values over time.

In an oscilloscope, what does the horizontal (X) axis represent?

Time the signal takes. (correct)
Amplitude of the signal.
Resistance of the circuit.
Frequency of the signal.

What is the primary function of a spectrum analyzer?

To determine the phase shift of signals.
To display waveform shapes.
To analyze amplitude variations by frequency. (correct)
To measure the voltage of a signal.

Which of the following is NOT a benefit of using a Digital Multimeter (DMM) over an analog meter?

Increased reliance on analog measurement. (B) Signup and view all the answers

When using an oscilloscope, what can be directly measured from the displayed graph?

Amplitude, period, and frequency. (C) Signup and view all the answers

What is a primary function of a resistor?

To limit current (D) Signup and view all the answers

What is the term used to describe the opposition to current in an electrical circuit?

Resistance (C) Signup and view all the answers

Which type of resistor allows for the adjustment of resistance values?

Variable resistors (D) Signup and view all the answers

Which best describes a voltage source?

A device that provides electrical energy (D) Signup and view all the answers

What occurs in a rotary switch?

A knob is turned to connect one contact to another (D) Signup and view all the answers

Current is defined as:

The rate of flow of charge (A) Signup and view all the answers

Why do ideal voltage sources not exist?

They are limited by physical principles (B) Signup and view all the answers

What characterizes a current source?

It supplies a constant current regardless of load (D) Signup and view all the answers

What is the primary function of fuses and circuit breakers in an electrical circuit?

To open the circuit when the current exceeds a specific limit (A) Signup and view all the answers

Which type of switch allows for the control of two different circuits simultaneously?

Double-Pole Single-Throw (DPST) (A) Signup and view all the answers

What is the role of a capacitor in an electrical circuit?

To store and release electrical charge (B) Signup and view all the answers

What distinguishes a normally open push-button switch from a normally closed push-button switch?

Normally open switches allow current only when pressed. (A), Normally closed switches allow current only when pressed. (D) Signup and view all the answers

What is the primary property exhibited by an inductor?

Inductance (D) Signup and view all the answers

What type of electrical component is formed by two parallel conductive plates and a dielectric material?

Capacitor (A) Signup and view all the answers

Which switch will connect to one of two output options based on its position?

Double-Pole Double-Throw (DPDT) (B) Signup and view all the answers

What is the main purpose of the ground in an electric circuit?

To provide a reference point (A) Signup and view all the answers

What is the primary function of a photodiode?

To convert photons into electrical current (B) Signup and view all the answers

What characterizes a tunnel diode in terms of current behavior?

Current decreases as applied voltage increases (D) Signup and view all the answers

What is the main purpose of a Zener diode?

To function in the reverse breakdown region (A) Signup and view all the answers

What type of diode utilizes the inherent capacitance of its depletion region?

Varactor diode (D) Signup and view all the answers

What distinguishes a Schottky diode from other types of diodes?

It is formed by the junction of a semiconductor and a metal (D) Signup and view all the answers

What is a primary function of a transistor?

To amplify or switch electrical signals (C) Signup and view all the answers

What happens to a thyristor when the forward voltage reaches a specific value?

It turns on and begins to conduct (A) Signup and view all the answers

Which type of diode is known for illuminating when an electric current flows?

LED (A) Signup and view all the answers

What instrument is used to measure resistance?

Ohmmeter (B) Signup and view all the answers

Which of the following is a function of a digital multimeter (DMM)?

Measure voltage, current, or resistance (C) Signup and view all the answers

How are ohm readings displayed on an analog multimeter?

On the top scale of the meter (D) Signup and view all the answers

What is the primary purpose of an ammeter?

To measure current (A) Signup and view all the answers

Which scale on a multimeter is not used for measuring voltage?

Ohm Scale (D) Signup and view all the answers

For what purpose is the selector switch used on a multimeter?

To choose the specific quantity to measure (B) Signup and view all the answers

What characteristic distinguishes a digital multimeter (DMM) from an analog multimeter?

DMMs can measure multiple electrical quantities. (A) Signup and view all the answers

What happens to conduction according to the specified value?

It continues until it reaches a threshold. (D) Signup and view all the answers