Certified Pool Operator Practice Test

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Study for the Certified Pool Operator Test. Prepare with comprehensive flashcards and multiple-choice questions. Each question includes hints and detailed explanations. Get ready for your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

When performing a color matching water test using the comparator, how should you hold the sample?

Hold the sample at eye level to a white background
Hold the sample next to a natural light source
Hold the sample up to the horizon opposite the sun or a daylight illuminator
Hold the sample in direct sunlight

The correct answer is: Hold the sample at eye level to a white background

When performing a color matching water test using the comparator, the best way to hold the sample is at eye level to a white background. This allows for the most accurate comparison of colors. Holding the sample next to a natural light source (option B) may cause shadows or glare, affecting the color perception. Holding the sample up to the horizon opposite the sun or a daylight illuminator (option C) may also create a biased perception of color due to the lighting conditions. Holding the sample in direct sunlight (option D) can also create glare and inaccurate color perception. Therefore, holding the sample at eye level to a white background is the most effective and accurate method for performing a color matching water test using the comparator.