Measuring tape least count

When you buy a measuring instrument, the least count is the key factor that you usually look into an instrument. The least count decides how precisely you can measure a dimension with that instrument. Let’s talk more about the least count and how to calculate the least count of the What is least count? The least count of an instrument is the smallest measurement that can be measured using that instrument. The lower the least count, the smaller and precise dimension that you can measure. Let’s take the example of a ruler. It has 10 marks in between 1 centimeter. So the least count for a ruler is 1/10= .1 cm or 1 mm. So with a ruler, the smallest dimension that you can measure is .1 cm or 1 mm. Are you searching for a new job or looking for some internships? Check out some General Least Count Formula Here is how you can calculate least count of an instrument having a single scale Formula: 1 Least Count = Value of 1 main scale division / Total main scale divisions. The least count formula for an instrument. Here is the least count formula for an instrument having a secondary scale along with the main scale. This rule also can be termed as the formula of least count of vernier caliper Formula: 2 Least Count of main scale = Value of 1 main scale division / Total main scale divisions Least Count Of Secondary Scale = Value of 1 secondary scale division / Total secondary scale divisions Least Count of an instrument = Least count of primary scale / Total secondary scale divisions L...

• Resources • CAD • Engineering Tolerance • Interview Questions • Latest Technologies • Product Design and Development • Plastic Design • Sheet Metal Design • Calculator • Sheet Metal Flat Pattern Calculator • Convection Calculator : Convective Heat Transfer • K-factor Calculator for Sheet Metal Bending • Conductive Heat Transfer Calculator • Contact Us • About Us • Privacy Policy To understand this let’s consider an example of digital and mechanical Vernier Calipers. Since Digital Vernier L.C. (0.01 mm) is smaller than mechanical Vernier L.C. (0.02 mm). Mechanical vernier will measure a 5±0.21 mm dimension as 5±0.20 or 5±0.22 mm. Whereas digital vernier will measure it 5±0.21. Therefore Digital Vernier is more precise compared to mechanical vernier because it has a smaller Least-Count. Least Count of an instrument is the smallest value instrument can measure. Whereas the accuracy of an instrument is how close a measured value is to the actual value. Similar to precision, accuracy is also inversely proportional to the L.C. Accuracy of an instrument is always less than its L.C. because it can not measure better than the minimum value it can measure. Here is the calculation of Mechanical vernier caliper least count: Mechanical vernier caliper Main Scale Reading = 1 cm Number of Divisions in main Scale = 10 Main Scale L.C. = 1 / 10 = 0.1 cm Number of Divisions in vernier secondary Scale = 50 Vernier Scale L.C. = 0.1 / 50 = 0.002 cm = 0.1 / 50 = 0.02 mm To sum up, the L.C. of ...

Table of Contents • • • • • • What is the least count of a measuring tape? Darandale sanjay rajendra • Darandale sanjay rajendra. Answered On : Aug 1st, 2017. • Measuring tape= 1mm, Vernier scale= 0.1mm, Micrometre – 0.01mm. What is the least count of Engineers Steel? It is used to measure distances or to rule straight lines. It is available in different lengths, the common sizes being 150 mm, 300 mm, and 600 mm. Its reading accuracy (least count) is 0.5 mm. What is an engineers tape measure? On an engineering tape measure, the foot is not divided into inches, but into tenths, or larger factors of 10, such as 1/20. With this type of tape measure, values greater than 1 foot can be multiplied without first converting the value to another unit, particularly in the case of tenths of a foot. How do you find the least count of a measurement? Mathematically a measurement instrument Least Count is calculated by dividing main scale reading by the total number of divisions on the main scale. And if the instrument also has a Secondary scale. Then instrument LC is the ratio of main scale L.C. and number of divisions on the secondary scale. What is least count in surveying? Least count means the minimum value that an instrument can read . 4.dumpy level: least count 5mm as it is based on staff reading thats why least count is 5mm. What is the least count and least count for vernier caliper? 0.1mm Least count of a Vernier scale is calculated using the following formula, Least count = Sma...

i Physics is a quantitative science, relying on accurate measurements of fundamental properties such as time, length, mass and temperature. To ensure measurements of these properties are accurate and precise, instruments such as meter sticks, Vernier calipers, micrometer calipers, triple-beam balances and laboratory thermometers are often used. It is important to understand how to properly use these devices. With any measurement tool, the student should always try to achieve the greatest accuracy the apparatus will allow. Meter stick. The simplest way to measure length is to use an ordinary meter stick. In the laboratory, our meter sticks are carefully calibrated in centimeters with a millimeter least count. That is, the millimeter is the smallest subdivision on the meter stick, which can be seen in Figure 1. This means the millimeter is the unit of the smallest reading that can be made without estimating. Figure 1. This meter stick is calibrated in centimeters (shown as the numbered major divisions) with a least count of millimeters. Figure 2. An example of a meter stick reading. The object's length is measured to be 41.64 cm. (See text for description.) A measurement reading usually has one more significant figure than the least count reading of the scale. The least count of our laboratory meter sticks is 0.1cm and therefore a reading can be made to 0.01cm. Figure 2 above shows a meter stick being used to measure the length of a plastic strip. The meter stick is calibrat...

This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. See Answer See Answer See Answer done loading Question:5. Using a measuring tape with a least count of 0.1 cm, you measure a package you wish to ship and record the length, width, and height as 11.2 cm, 7.5 cm and 5.4 cm. The sum of the linear dimensions (length plus width plus height) is often used to calculate the shipping rate. Calculate the following values a. Sum of linear dimensions b. Probable percent 5. Using a measuring tape with a least count of 0.1 cm, you measure a package you wish to ship and record the length, width, and height as 11.2 cm, 7.5 cm and 5.4 cm. The sum of the linear dimensions (length plus width plus height) is often used to calculate the shipping rate. Calculate the following values a. Sum of linear dimensions b. Probable percent error in length c. Probable percent error in height d. Probable percent error in width e. Probable error of the sum of linear dimensions f. Probable percent error of the sum of linear dimensions g. Volume of boxcm3 h. Probable percent error in volume of box i. Probable error in volume of box Previous question Next question

The measuring tape: Measuring tapes are used to measure the length in meters and centimeters. A measuring tape used by blacksmiths and carpenters. A measuring tape consists of a thin and long strip of cotton, metal, or plastic generally 10 m, 20 m, 50 m, or 100 m long. Measuring tapes are marked in centimeters as well as in inches. The least count of measuring tape = 0.1 cm or 1 mm Mini Exercise Cut a strip of a paper sheet. Fold it along its length. Now mark centimeters and half a centimeters along its length using a ruler. Answer the following questions: 1. What is the range of your paper scale? Ans: The range of the paper scale is 20 cm. 2. What is its least count? Ans: The least count of paper scale is 1 cm. 3. Measure the length of a pencil using you. Paper scale and with a meter ruler. Which one is more accurate and why? Ans: The measurement of pencil measured by the meter ruler is 4.2 cm. The measurement of a pencil measured by the ruler is more accurate because it even can measure the length in millimeters.

The key to a successful DIY project is taking careful measurements, so finding a reliable tape measure is essential. There are plenty of features to think about when shopping for a tape measure, but one of the most important factors to consider is how well you can see your measurements. “Get a tape measure that’s easy for you to read,” says Danielle Guerrero, a DIY blogger for her website Our Nest on Powell. “For beginners, that’s probably the best thing to look for in a tape measure.” No matter what your next project is, these tape measures have the features you need for precise measuring. We put 34 tape measures to the test in our lab and evaluated them on their ease of use, accuracy, performance, and durability. Keep in Mind • It’s a bit bulky, so it might be a tight fit for a tool belt pouch. The Irwin Strait-Line tape measure is our top pick for the best tape measure. It earned a perfect score during testing across all categories, including performance, durability, accuracy, and value. The bright yellow blade features large numbers and double-sided markings. The tape measure has stud markings that are conveniently placed every 16 inches. This 16-foot tape measure is also available in a 25-foot option for longer measurements. Our testers found that the case was comfortable to grip, and the lock could be engaged or released with just their thumbs. They also noted that they could control the speed of the blade as it fed out and retracted, which prevented the blade from w...