What is the designation for the water displacement item?

What is the designation for the water displacement item?

• A. 81123
• B. 81000
• C. 81299
• D. 81309

Answer: (D)

This item tests your ability to map a specific instrument to its official designation in the standard equipment catalog. In density or volume measurements, a water displacement device is used to determine the volume of a specimen by Archimedes’ principle—submerging the item and measuring the water it displaces. Standards assign a unique numeric designation to each instrument, so you can identify exactly which tool is being referenced. The correct designation is the one that the standard assigns to the water displacement device. That entry matches the water displacement method entry in the equipment list, while the other numbers correspond to different instruments and do not refer to the water displacement item. For study, remember to consult your equipment catalog or standard reference so you can quickly recognize the exact designation when you see it on questions or in procedures.

This item tests your ability to map a specific instrument to its official designation in the standard equipment catalog. In density or volume measurements, a water displacement device is used to determine the volume of a specimen by Archimedes’ principle—submerging the item and measuring the water it displaces. Standards assign a unique numeric designation to each instrument, so you can identify exactly which tool is being referenced.

The correct designation is the one that the standard assigns to the water displacement device. That entry matches the water displacement method entry in the equipment list, while the other numbers correspond to different instruments and do not refer to the water displacement item. For study, remember to consult your equipment catalog or standard reference so you can quickly recognize the exact designation when you see it on questions or in procedures.