Question

Which of the following anti-freeze solutions is mixed with water in the cooling system of tractors under very cold conditions?

• A. Sodium chloride
• B. Glycerine
• C. Caustic soda
• D. Sodium hydroxide

Hint:

Use glycerine or ethylene glycol as antifreeze in cold conditions to prevent radiator freezing.

Answer 1

The Correct Option is B

Step 1: Purpose of Antifreeze Solutions
Antifreeze solutions lower the freezing point of water, preventing the coolant from freezing in extremely cold conditions.
Step 2: Evaluating the Options
- Sodium chloride (Salt): Corrosive and not suitable for engine cooling systems. - Glycerine: Used as an antifreeze agent because it prevents freezing and has low toxicity. - Caustic soda (NaOH): Highly reactive and not used as an antifreeze. - Sodium hydroxide: A strong base that damages cooling systems.
Step 3: Conclusion
Glycerine is the best antifreeze agent for tractor cooling systems in cold conditions.