A student was asked to layout a 500 m long line using a 25 m tape that is of standard length at a temperature of 28°C. If the average temperature is 12°C, what is the required measurement? (Use a = 0.0000116 m/m °C) %3D 499.9072 m 498.9072 m 501.0928 m 500.0928 m

A student was asked to layout a 500 m long line using a 25 m tape that is of standard length at a temperature of 28°C. If the average temperature is 12°C, what is the required measurement? (Use a = 0.0000116 m/m °C) %3D 499.9072 m 498.9072 m 501.0928 m 500.0928 m

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Unit Conversion

Standard units are also called SI units. SI units are used for measuring a physical quantity satisfying certain conditions. There are two types of units: fundamental units and derived units. Fundamental units are physical quantities that are independent, that is, they do not depend on other quantities like mass, length, or time. There are plenty of quantities in our lives which need to be measured and compared. Measuring is the comparison of a particular physical quantity with its reference value. A unit is a measure of a fixed physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.

Question

A student was asked to layout a 500 m long line using a 25 m tape that is of standard length at
a temperature of 28°C. If the average temperature is 12°C, what is the required measurement?
(Use a = 0.0000116 m/m °C)
%3D
499.9072 m
498.9072 m
501.0928 m
500.0928 m

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SITUATION: A steel tape with coefficient of linear expansion of 0.0000116 per °C is known to be 50 m long at 20°C. The tape was used to measure a line which was found to be 532.28 m long and when the temperature was 35°C. Zoom image Find the correct length of the line. O532.62 532.29 532.86 532.37