E20 Petrol Quiz

    E20 petrol is a fuel blend containing 20% ethanol and 80% petrol. It is important for exams because it is linked with India’s energy security, ethanol blending programme, crude oil import reduction, environment, farmers’ income and automobile fuel policy.

1. What is the correct composition of E20 petrol?

• [A] 10% ethanol and 90% petrol
• [B] 20% ethanol and 80% petrol
• [C] 25% ethanol and 75% petrol
• [D] 85% ethanol and 15% petrol

Correct Answer: [B] 20% ethanol and 80% petrol

Notes: E20 petrol means petrol blended with 20% ethanol and 80% petrol by volume. Ethanol is a biofuel generally produced from agricultural sources such as sugarcane, molasses, maize and other permitted feedstocks.

2. Under which programme is ethanol blending in petrol promoted in India?

• [A] National Hydrogen Mission
• [B] Faster Adoption and Manufacturing of Electric Vehicles Scheme
• [C] Ethanol Blended Petrol Programme
• [D] National Solar Mission

Correct Answer: [C] Ethanol Blended Petrol Programme

Notes: The Ethanol Blended Petrol Programme promotes blending of ethanol with petrol. Its major objectives are reducing crude oil imports, saving foreign exchange, lowering emissions, supporting farmers and strengthening energy security.

3. The National Policy on Biofuels originally targeted 20% ethanol blending by which year?

• [A] 2022
• [B] 2025
• [C] 2027
• [D] 2030

Correct Answer: [D] 2030

Notes: The National Policy on Biofuels, 2018 originally laid down an indicative target of 20% ethanol blending in petrol by 2030. Later, the target was advanced to Ethanol Supply Year 2025-26.

4. The amended ethanol blending target advanced E20 achievement to which Ethanol Supply Year?

• [A] ESY 2025-26
• [B] ESY 2030-31
• [C] ESY 2035-36
• [D] ESY 2040-41

Correct Answer: [A] ESY 2025-26

Notes: The 20% ethanol blending target was advanced from 2030 to Ethanol Supply Year 2025-26. This is a very important current affairs fact for competitive exams.

5. What is the period of an Ethanol Supply Year in India?

• [A] 1 January to 31 December
• [B] 1 November to 31 October
• [C] 1 April to 31 March
• [D] 1 July to 30 June

Correct Answer: [B] 1 November to 31 October

Notes: Ethanol Supply Year is counted from 1 November to 31 October. This is used for tracking ethanol procurement and blending performance under the Ethanol Blended Petrol Programme.

6. India achieved 10% ethanol blending in petrol in which month and year?

• [A] January 2020
• [B] March 2021
• [C] June 2022
• [D] December 2024

Correct Answer: [C] June 2022

Notes: Public Sector Oil Marketing Companies achieved 10% ethanol blending in June 2022, ahead of target. This milestone helped India move faster towards the E20 target.

7. Which of the following is a major reason for slight reduction in mileage while using E20 petrol?

• [A] Ethanol has no oxygen content
• [B] Petrol becomes solid at room temperature
• [C] E20 cannot burn inside engines
• [D] Ethanol has lower energy content than petrol

Correct Answer: [D] Ethanol has lower energy content than petrol

Notes: Ethanol has lower calorific value than petrol. Therefore, some vehicles may show a small fall in fuel economy. Official clarifications mention that E20 may reduce fuel economy by around 3-5% in some vehicles.

8. Why is ethanol considered useful for modern high-compression engines?

• [A] It has a higher octane number than petrol
• [B] It contains more sulphur than petrol
• [C] It is a non-combustible liquid
• [D] It completely removes the need for engine oil

Correct Answer: [A] It has a higher octane number than petrol

Notes: Ethanol has a higher octane number than petrol. Higher octane helps in better anti-knock performance and is useful for modern high-compression engines when engines are properly designed or tuned for such blends.

9. Which Indian Standard is associated with E20 reference fuel mixture?

• [A] IS 456:2000
• [B] IS 17943:2022
• [C] IS 10500:2012
• [D] IS 800:2007

Correct Answer: [B] IS 17943:2022

Notes: IS 17943:2022 relates to E20 reference fuel mixture. It specifies an admixture of 20% anhydrous ethanol and 80% ethanol-free motor gasoline by volume for reference fuel purposes.

10. Which of the following is not a direct objective of India’s E20 petrol policy?

• [A] Reducing crude oil import dependence
• [B] Supporting farmers through ethanol demand
• [C] Replacing all electric vehicles with petrol vehicles
• [D] Lowering emissions and improving energy security

Correct Answer: [C] Replacing all electric vehicles with petrol vehicles

Notes: E20 petrol policy aims to reduce crude oil imports, save foreign exchange, lower emissions, promote domestic biofuel production and support farmers. It is not meant to replace electric vehicles; both are part of cleaner mobility efforts.

Prepared for Government Job Exams | Topic: E20 Petrol | 10 Important MCQs

Frequently Asked Questions on E20 Petrol

What is E20 petrol?

E20 petrol is a blend of 20% ethanol and 80% petrol.

Why is E20 petrol important for exams?

E20 petrol is important because it is linked with ethanol blending, biofuel policy, crude oil import reduction, energy security, environment and farmers’ income.

What is the target year for E20 petrol in India?

India advanced the target of 20% ethanol blending to Ethanol Supply Year 2025-26.

Which programme promotes ethanol blending in India?

Ethanol blending is promoted under the Ethanol Blended Petrol Programme.