ITPEC FE Subject A April 2025 Question 16
ITPEC FE Subject A April 2025 — Question 16 of 60
Actuator — converts energy into physical movement (rotation, translation) based on control signals.
Why this answer (c):
- An actuator takes energy (electrical, hydraulic, pneumatic) and produces mechanical motion
- Examples: motors, solenoids, hydraulic cylinders
Why not others:
- (a) describes an amplifier — boosts weak electrical signals
- (b) describes a controller — compares target value with sensor feedback and outputs correction
- (d) describes a sensor — detects physical parameters and converts them to electrical signals
Key rule: Sensor reads the physical world → electrical signal. Actuator does the reverse → electrical signal into physical motion.
AI-generated — may contain errors
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