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Hydraulic actuator
Term Y11 Mechatronics
Definition
An actuator that uses pressurised fluid to move a piston, giving large force, as in excavators and heavy robot arms.
Example: Hydraulic actuators lift the excavator arm.
Found in: syllabus.
Where it is used in the test
Syllabus area: Y11 Mechatronics.
Question types it can appear in
- Multiple choice: Pick the option that matches the definition or example.
- Matching or table: Match it to its description, example or category.
- Fill in the blanks: Choose this term to complete a statement or table.
No past question in this bank is linked to this term yet. It can still be tested through the question types above.
Study links
- Flashcard: Hydraulic actuator in Programming Mechatronics (Year 11) · study that set
- Memorise: Mechatronics: hardware, sensors, actuators, control
- Notes: Mechatronics: hardware, sensors, actuators, control (Year 11 content (Programming fundamentals, OOP, Mechatronics))
How to use it in an answer
A model sentence
“An actuator that uses pressurised fluid to move a piston, giving large force, as in excavators and heavy robot arms.” Then apply it: Hydraulic actuators lift the excavator arm.
In a short answer, give the definition in your own words first, then tie it to the situation in the question. Do not copy the example above unless it fits the scenario.
Technique for the question types
- Multiple choice: Read all four options, rule out wrong ones, pick one; no penalty for guessing so never leave blank.
- Matching or table: Tick or match each statement to the right column (for example ORM v SQL, SAST v DAST).
- Fill in the blanks: Choose the right word from a list; use exact syllabus terms.
Common mistakes
- Use the term exactly as the syllabus words it, then link it to the scenario in the question; the 2025 feedback repeatedly rewards using the stimulus.
- Answer the command word: outline gives main points only, explain gives a reason or cause, discuss gives both sides.
Related terms
Same group in the syllabus: Mechatronic system · Microcontroller · CPU (central processing unit) · Instruction set · Opcode · Address register · Data register · Sensor · Motion sensor · Light level sensor · Actuator · End effector (manipulator) · Robotic gripper