What type of device is used to consistently measure liquid volumes accurately?

The most suitable device for consistently measuring liquid volumes accurately in a laboratory setting is the graduated cylinder. Graduated cylinders are specifically designed for precise volume measurement, providing clear markings along the sides for accurate readings at various volumes. This enables the user to deliver an exact amount of liquid with minimal error, which is essential in experiments where precise volume is crucial.

While a pipetting device can also measure liquid volumes, it is typically used for transferring smaller quantities of liquid and may not provide the same level of accuracy as a graduated cylinder for larger volumes. The burette, although highly accurate and ideal for titrations, is designed for dispensing controlled amounts of liquid rather than initial measurements. A measuring spoon is more suited for culinary use and lacks the precision required for scientific measurements. Thus, the graduated cylinder is the best option for accurately measuring liquid volumes consistently.