| Exam ID: U4 |
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- 50 multiple-choice questions
- 1-hour limit
- Closed book
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| IMPORTANT:
For Illinois UST licensing, you must take the exam at
a Promissor testing site, since your photo is required
on the score report letter you receive at the conclusion
of your exam. |
| Sample Examination Questions: The
sample questions are provided to give you an idea of the
style and format of examination questions. The questions
are not intended to represent content, references or questions
that will be on the examination. They are not intended
nor should they be referenced/used as a study tool for
the examination. |
| 1. |
Underground storage tank systems with cathodic
protection must be inspected within _____ months of installation,
and at least every _____ years thereafter. Click for Answer
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A. |
3 months ...... 2 years |
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B. |
3 months ...... 3 years |
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C. |
6 months ...... 3 years |
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D. |
6 months ...... 5 years |
| 2. |
When stray DC current contacts a buried
metallic structure, corrosion will frequently occur: Click for Answer
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A. |
where the current enters the structure. |
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B. |
where the current leaves the structure. |
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C. |
at the location of minimum resistivity of
the structure. |
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D. |
at the location of maximum resistivity
of the structure. |
| 3. |
Which of the following factors is least
likely to be a source of stray currents? Click for Answer
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A. |
A galvanic anode |
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B. |
An overhead powerline |
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C. |
A rectifier and groundbed |
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D. |
An improperly grounded DC welder |
| 4. |
If an impressed current cathodic protection
system has a small nick in the insulation of the buried
wire attached to the anodes, the: Click for Answer
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A. |
system will not be affected. |
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B. |
wire will corrode at that location. |
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C. |
structure will get additional protection. |
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D. |
protection will drain away from the structure. |
| 5. |
On a UST system protected by an impressed
current system, the system must be inspected every _____
to ensure equipment is working. Click for Answer
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A. |
30 days |
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B. |
60 days |
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C. |
year |
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D. |
3 years |
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Return to certification category
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