Question

The liquid used in hydraulic transmission is:

• A. oil
• B. water
• C. steam
• D. any volatile liquid

Hint:

Oil is preferred in hydraulic systems because it has excellent lubricating properties, low compressibility, and can operate at high pressures.

Answer 1

The Correct Option is A

Step 1: Understanding Hydraulic Transmission Fluids. Hydraulic transmission systems necessitate fluids with properties like incompressibility and lubrication. Oil is the predominant fluid utilized for this function.

Step 2: Option Evaluation.

• (A) Oil: The most prevalent fluid in hydraulic systems.
• (B) Water: Employed in certain systems but less common due to inferior lubrication.
• (C) Steam: Not applicable in hydraulic systems owing to its compressibility.
• (D) Any volatile liquid: Generally unsuitable as they may evaporate or destabilize hydraulic systems.

Step 3: Determination. The appropriate selection is (A) oil, representing the most frequently used fluid in hydraulic transmission.