Question

Euro-I, Euro-II, Euro-III norms are related to

• A. automobile engine
• B. computer chips
• C. auto fuel
• D. none of these

Hint:

These staged standards fix fuel quality and vehicle emission limits, adopted in India as the Bharat Stage norms.

Answer 1

The Correct Option is C

Step 1: Understanding the Question:
The question asks what Euro-I, Euro-II and Euro-III norms actually regulate.

Step 2: Key Formula or Approach:
We recall what these staged emission and fuel quality norms cover in the Indian context.

Step 3: Detailed Explanation:
Euro norms are a series of progressively stricter standards, adopted in India, that fix the permissible level of pollutants released by vehicles and the quality of the fuel used to meet those limits.
In India these are commonly known as Bharat Stage norms and are directly tied to auto fuel quality, since the sulphur and benzene content of petrol and diesel must be lowered at each stage.
They are not about computer chips at all, so option (2) is wrong.
While engines are tuned to meet these norms, the norms themselves are officially defined and enforced as auto fuel quality standards, so option (3) fits better than the general automobile engine wording of option (1).

Step 4: Final Answer:
Euro-I, Euro-II and Euro-III norms are related to auto fuel, so the answer is option (3).