CET Test Equipment and Measurements

Question 1

What does the vertical axis of an oscilloscope display represent?

Accepted Answer

Voltage (volts/division)

Answer

Time (seconds/division)

Answer

Frequency (Hz/division)

Answer

Current (amps/division)

Question 2

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

Accepted Answer

Disconnect the circuit from its power source

Answer

Apply power to the circuit under test

Answer

Short the test leads and zero the meter

Answer

Set the meter to the lowest resistance range

Question 3

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

Accepted Answer

50 ohms

Answer

10 ohms

Answer

300 ohms

Answer

600 ohms

Question 4

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

Accepted Answer

Sine, square, and triangle waves

Answer

Sine waves only

Answer

Square waves only

Answer

DC and pulsed signals only

Question 5

What does an LCR meter primarily measure?

Accepted Answer

Inductance, capacitance, and resistance

Answer

Voltage, current, and resistance

Answer

Length, capacitance, and reactance

Answer

Load, current, and rated power

Question 6

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

Accepted Answer

Logic analyzer

Answer

Analog oscilloscope

Answer

Spectrum analyzer

Answer

Signal generator

Question 7

What is the primary purpose of a spectrum analyzer?

Accepted Answer

To measure signal amplitude versus frequency

Answer

To display voltage versus time waveforms

Answer

To generate test signals at precise frequencies

Answer

To measure component resistance and capacitance