Engineering Fundamentals
Engineering Fundamentals
6th Edition
ISBN: 9780357112144
Author: Saeed Moaveni
Publisher: MISC PUBS
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Chapter 7, Problem 1P
To determine

Estimate the dimensions of the given objects. Compare the estimated value with actual dimension of the object.

Check the valuing capacity of dimension from the comparison.

Expert Solution & Answer
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Explanation of Solution

Use the following procedure to estimate and compare with actual dimension of the object:

  • Value the dimensions of the given object without using any measuring device. This is called estimated values.
  • List the estimated values in Table 1.
  • Measure the actual dimension of the object by using the measuring instruments.
  • List the actual values of the objects in Table 1.
  • Compare the estimated value with measured value.
  • Calculate the difference between the estimated and actual value.

Provide the estimated value, actual dimensions, and the difference between each object as shown in table 1.

ObjectEstimated valuesMeasured valuesDifference
This book23cm9in.24.89cm9.8in.1.89cm0.8in.
A pen or pencil18cm7in.19cm7.5in.1cm0.5in.
A laptop computer (closed)30.5 cm12 in.33.02 cm13 in.2.52 cm1 in.
A 12-fl.-oz soda can13cmhigh5in.high12.27cmhigh4.83in.high0.73cm0.17in.
The distance from home to school 5km3miles4km2.49miles1km0.51miles
A dollar bill15 cm5.5 in.15.60 cm.6.14 in.0.60 cm0.23 in.
The height of your engineering building42m140ft45.6m149.61ft3.6m9.61ft
Wingspan of a Boeing 74755m180ft59m193.57ft4m13.57ft

Table 1

Refer to Table 1:

The difference between the estimated and calculated value is minimum. The accuracy of estimated value is moderate.

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