Practical Exam Flashcards
What is a DC Power device?
An electrical device capable of generating a constant voltage.
What are Dual Power supplies used for?
Generating two constant voltages simultaneously, suitable for components requiring different DC voltage supplies.
What is the function of a Function Generator?
To generate AC voltages such as sine, sawtooth, and square waveforms.
What does a Digital Multimeter measure?
DC and AC voltages, currents, and resistance.
What are Voltmeters used for?
To measure DC and AC voltages.
What do Ammeters measure?
DC and AC currents.
What is the purpose of an Ohmmeter?
To measure resistor values.
What is a Cathode Ray Oscilloscope?
An instrument used to measure and display DC and AC voltages and estimate phase differences between AC waveforms.
What is a prototyping board or breadboard used for?
To construct electronic circuits for preliminary design work and circuit testability.
What do the first two bands of a resistor’s colour code represent?
The first and second digits of the resistor value.
What does the third band in a resistor’s colour code indicate?
The power-of-ten multiplier for the first two digits.
What does the fourth band in a resistor’s colour code signify?
The manufacturer’s tolerance indicating the precision of the resistor value.
What is the typical resistance tolerance range for modern resistors?
Between 1% and 5%.
Fill in the blank: The colour code for Black is _______.
0
Fill in the blank: The colour code for Brown is _______.
1
