Short-Question

# What are the disadvantages of using a measuring tape?

## What are the disadvantages of using a measuring tape?

They are extremely compact, and can easily be carried from location to location. Their main downside is the danger that the metal can cut the skin during use. They also are not easily manipulated, so measuring an area that is not a straight line can be difficult.

## What are the benefits of using a ruler?

Using a ruler is obviously more precise than trying to guess a measurement and, over shorter distances, can prove more accurate than using a tape measure.

What is the accuracy of a ruler?

Distances are normally measured with a ruler. The limit of accuracy of a ruler is indicated by how “precisely” you can read the length on that ruler’s scale—that is, how well you can estimate between the marks. On the portion of the ruler shown in Figure1, the distance between the closest marks is 0.1 cm.

What are the advantages of using measuring tools?

Pros: Easily maneuverable—measuring around corners or curves….

• More expensive.
• Requires batteries or power source.
• Not as effective when measuring short distances.
• Light conditions and good weather are important.

### What are the advantages of using a measuring device?

Measuring instruments, such as the Wave Analyzer and auto kerato-refractometers, can be crucial in determining the efficiency and success of an optical practice. Similarly, the instruments used during a patient’s appointment will determine the patient’s experience and perception of your practice.

### What is the error of a ruler?

More “precise” measurements can be made on the first ruler. The greatest possible error of a measurement is considered to be one-half of the measuring unit. If you measure a length to be 4.3 cm. (measuring to the nearest tenth), the greatest possible error is one-half of one tenth, or 0.05.

What is the uncertainty of a ruler?

Measurements made with a ruler therefor have an uncertainty of between 1/32 inch and 1/64 inch, and you shouldn’t report any more digits than that. The uncertainty in a measured quantity can be found by considering the measuring device used.