Identify the incorrect characteristic regarding the ideal properties of a quality fuel__________________?
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Answer: D. high ignition point
Explanation
A high ignition point is undesirable for fuels because it makes them difficult to ignite; quality fuels should have a low to moderate ignition point. Fuels must ignite easily upon exposure to an ignition source to ensure reliable engine starting and combustion stability. An excessively high self-ignition or flash point creates dangerous operational delays and requires pre-heating systems. Quality fuels are evaluated based on calorific value, storage stability, economic cost, minimal smoke production, and ignition characteristics. Calorific value measures the total thermal energy released when a unit mass of fuel undergoes complete combustion. Ideal fuels should be easy to handle, safe to transport, and burn cleanly without leaving excessive ash or toxic emissions.
Option A is incorrect because a high calorific value is a highly desirable property for quality engineering fuels. Option B is wrong because producing minimum smoke and harmful gases is an essential requirement for eco-friendly fuels. Options C and E are incorrect because ease of storage and economic affordability are fundamental traits of quality fuels.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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