Q. Consider the following statements regarding the blending of gasoline with ethanol: - Octane number is raised
- Energy content per volume is increased
- The engine is less likely to suffer damage
Which of the above statements is / are correct?
Answer:
Only 1 and 3
Notes: Blending gasoline with ethanol does raise the octane number (statement 1), helping prevent engine knocking and reducing the likelihood of engine damage (statement 3). However, energy content per volume actually decreases because ethanol has lower energy density compared to gasoline. Therefore, only statements 1 and 3 are correct.