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WorksheetsQuiz on Electronic Systems
Total questions: 15
Worksheet time: 8mins
What is an example of a device that produces an analogue signal?
A switch
A thermistor
A microcontroller
An LED
What is the main advantage of using microcontrollers over single process ICs?
They are cheaper
They are larger
They can perform multiple tasks
They require more components
What is the main characteristic of a digital signal?
It varies continuously
It is always high
It is either on or off
It has infinite values
What type of signal would you get from a switch?
Analogue signal
Digital signal
Continuous signal
Variable signal
What is the graphical representation of an analogue signal?
A series of square waves
A continuous wave
A series of dots
A straight line
What are microcontrollers also known as?
Peripheral interface controllers
Integrated circuits
Timing devices
Flowchart processors
What are the two types of timers used in electronic systems?
Monostable and astable
Stable and unstable
Fast and slow
Digital and analogue
What is a characteristic of the monostable process?
It remains on indefinitely
It turns on for a set period of time
It never turns off
It turns on randomly
What is the main benefit of microcontrollers over the 555 timer?
They are more expensive
They are more versatile
They are less reliable
They are larger
What is the stability state of a monostable device when it is not triggered?
Stable in the on position
Stable in the off position
Unstable in the on position
Unstable in the off position
How long does the motor delay to keep the doors open in the described system?
2 seconds
5 seconds
10 seconds
15 seconds
In the astable process, what happens after the output is off for a set period?
The system shuts down
The output turns on automatically
The output remains off
The system resets
What is the final step in the astable process?
The system is turned off
The output remains on
The process repeats
The output fluctuates
What does the system compare to determine when to turn on a street lamp?
The time of day
The voltage from the light dependent resistor
The temperature
The current from the microcontroller
Which component is typically used to detect light levels in a street lamp system?
A thermistor
An LED
A light dependent resistor
A microcontroller
