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Q: A: ### Quick Answer

**Linear feet is calculated by adding the lengths of points connected by straight lines.** For example, the perimeter around a house can be measured in linear feet. Square feet measures area, and linear feet measures length.

Two areas that measure the same square feet can have different perimeters, hence differing values for linear feet, if they’re shaped differently. For example, a rectangle that measures 8 feet long and 2 feet wide has an area of 16 square feet (length x width) and a perimeter of 20 linear feet (2 x (length + width), while a square that measures 4 feet by 4 feet has the same area but a perimeter of 16 linear feet.

Learn more about Measurements- Q:
## Is 6 inches small?

A:Size is relative; therefore, six inches can be small or large when compared to other lengths. Six inches is very close to, but slightly shorter than, the length of a dollar bill.

Full Answer >Filed Under: - Q:
## In a 25-meter pool, how many laps equal a mile?

A:Swimming approximately 64 lengths in a 25-meter pool equals one mile. If one lap equals two lengths, approximately 32 repetitions in a pool of this size are needed to complete a mile.

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## What is the difference between the Kelvin and Celsius temperature scales?

A:

Full Answer >**The primary difference between the centigrade, or Celsius, scale and the absolute, or Kelvin, scale is in their respective starting points.**The Celsius scale sets the freezing point of pure water at sea level as 0, while 0 degrees Kelvin is absolute zero, the coldest temperature theoretically possible.Filed Under: - Q:
## How does a differential pressure gauge work?

A:

Full Answer >**Found mainly in industrial process systems, differential pressure gauges are designed to measure pressure difference between two pressure points.**According to WIKA Worldwide, a differential pressure gauge has two inlets connected to the points being monitored. In effect, it performs the mathematical operation of subtraction through mechanical means. As such, it eliminates the need for a control system or an operator to determine the reading differences.Filed Under: