Computer Science for IGCSE & O level - Hardware (Section 9 - No. 17)
What is the function of the gas valve in a central heating system controlled by a microprocessor?
To measure the water temperature.
To regulate the flow of gas to the heater.
To circulate the water.
To convert the analog signal to digital.
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The gas valve regulates the gas supply to the heater based on commands from the microprocessor.