📖 From An Introduction To Microprocessor 8085 • 15. Applications of Microprocessor • 17 questions available
Practice MCQs for 8085 Microprocessor Based Temperature Controller. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.
🔄 Last updated: 2026-07-30
Q1. In order to show a temperature value on the six 7‑segment displays, which register must contain the BCD‑coded digit before the display routine is called?
💡 Difficulty: easy | ✅ Correct: A
Q2. If the 8085 uses the RST7.5 interrupt every 1 ms to count seconds, how many interrupts must occur to represent one full second?
💡 Difficulty: medium | ✅ Correct: A
Q3. When adding a heating element control to the temperature controller, which port bit should be toggled to switch the heater on after the measured temperature exceeds the setpoint?
💡 Difficulty: hard | ✅ Correct: C
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