Pharmacy Technician Certification Exam Practice Questions Practice Question
A technician is measuring 240 mL of water in a graduated cylinder. After the water is poured into the cylinder, what should be done to ensure an accurate measurement with respect to the 240 mL line?
Correct Answer: D
Rationale: To ensure an accurate measurement, the cylinder should be placed on a flat surface and viewed at eye level to eliminate parallax error. Checking the bottom of the meniscus, the curve formed by the liquid, provides the most precise reading.
Option A is incorrect because checking at eye level is essential, but placing the cylinder on the counter without proper alignment can lead to inaccuracies.
Option B, while correct about eye level, suggests holding the cylinder, which can cause the meniscus to appear distorted.
Option C is wrong because looking down into the cylinder can create a misleading perspective, leading to an inaccurate reading of the liquid level.
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