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CCEA A-Level Technology and Design A2 1 Electronic and Microelectronic Control Systems overview quiz quiz

14questions. Pick an answer and you'll see why right away.

  1. Which type of logic has memory, so its output depends on the previous state as well as the present inputs?

  2. By what factor does a single toggling flip-flop divide its input frequency?

  3. A 4-bit binary counter is clocked at 16 Hz. The frequency at the fourth flip-flop output is:

  4. An inverting summing amplifier output is given by:

  5. A voltage follower (unity-gain buffer) is used because it has:

  6. How many discrete levels does an 8-bit analogue-to-digital converter provide?

  7. A 10-bit ADC measures 0 to 5 V. Its resolution (one step) is about:

  8. A microcontroller (PIC) is best described as:

  9. A key advantage of a microcontroller over hard-wired discrete logic is that:

  10. In a flowchart, a yes/no decision is represented by:

  11. Which programming construct repeats a block of instructions?

  12. The key feature of a closed-loop control system, compared with open-loop, is that it:

  13. The error signal in a closed-loop system is:

  14. In PID control, the integral (I) term: