California ICC UST Service Technician Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the California ICC UST Service Technician Exam with our engaging quiz. Test your knowledge using a variety of questions, including multiple-choice and flashcards. Each question is accompanied by helpful hints and detailed explanations to boost your understanding.

Practice this question and more.

Is it true or false that a small amount of water in ethanol tanks can cause issues and should be checked for daily?

True
False

The correct answer is: True

It is indeed true that even a small amount of water in ethanol tanks can lead to significant problems, and regular checking is crucial. Ethanol is hygroscopic, meaning it attracts water. When water mixes with ethanol, it can create phase separation, where the ethanol and water layer separates from the other fuel components. This can result in poor fuel quality, increased corrosion within the storage tanks, and potential engine performance issues when water reaches the fuel supply. Additionally, the presence of water can promote the growth of microbes, which can further contaminate the fuel and lead to clogging of filters and injectors. Therefore, daily checks are essential to monitor the water levels in ethanol tanks, allowing for immediate action if water contamination is detected, thus maintaining the integrity and operational efficiency of the fuel system.