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Module 4: Robotic actuators

20242m

In which type of system does power transmission take place through compressed air?
(i) Fluid power system
(ii) Pneumatic system
(iii) Hydraulic system
(iv) Stepper motors

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Answer

Correct Option: (ii) Pneumatic system (also (i) Fluid power system is broader)

Explanation

  • Pneumatic: Uses compressed air (pneuma = air) for power transmission. Clean, fast, low force.
  • Hydraulic: Uses pressurized liquid (oil).
  • Fluid power system: Umbrella term for both pneumatic + hydraulic. Pneumatic is the specific air-based subset.
  • Stepper motors: Electrical.

If exam expects broad category, (i) Fluid power is also true, but (ii) Pneumatic is precise for air.

Final Answer

Compressed air → Pneumatic → Option (ii) (fluid power is generic).

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