Test Equipment and Measurements Flashcards

What does the vertical axis of an oscilloscope display represent?

Answer: Voltage (volts/division)

The vertical axis of an oscilloscope represents voltage amplitude, calibrated in volts per division.

When measuring resistance with a digital multimeter, what must be done before taking a reading?

Answer: Disconnect the circuit from its power source

Resistance measurements must be taken with the circuit de-energized to prevent meter damage and obtain accurate readings.

What is the standard output impedance of most RF signal generators used in electronics labs?

Answer: 50 ohms

Most RF signal generators have a standard 50-ohm output impedance to match the characteristic impedance of common RF coaxial transmission lines.

A function generator can typically produce which combination of waveform types?

Answer: Sine, square, and triangle waves

A function generator produces multiple waveform shapes—including sine, square, and triangle waves—for testing electronic circuits.

What does an LCR meter primarily measure?

Answer: Inductance, capacitance, and resistance

An LCR meter measures inductance (L), capacitance (C), and resistance (R) of passive electronic components.

Which instrument is best suited for capturing and displaying multiple simultaneous digital logic signals?

Answer: Logic analyzer

A logic analyzer is specifically designed to capture many digital channels simultaneously, making it ideal for debugging digital logic and bus protocols.

What is the primary purpose of a spectrum analyzer?

Answer: To measure signal amplitude versus frequency

A spectrum analyzer displays signal amplitude across a range of frequencies, providing a frequency-domain view of the signal.