Exam 2 Study Guide *Same format; some true false Exam in general Chapters 4‚ 7‚8‚9‚10‚11 Know cases! May ask something specific about case. Read carefully‚ look at questions‚ understand what we discussed in class‚ and how we interpreted in class Ch. 7 Know advantages and disadvantages of online surveys and focus groups pg. 186‚ 188 Advantages of Online Focus Groups Lower Costs Faster turnaround time Respondents Ability to be geographically separate and be located anywhere Intangibles such as
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MEASUREMENTS AND ELECTRONIC INSTRUMENTS (EE21004) TUTORIAL-I SECTION 1: QUALITY OF MEASUREMENTS Q1. (a) A meter ‘I’ has ± 5% accuracy on true value while another ‘II’ has ±5% accuracy on scale range. Both the meters have the same scale range. Calculate the ratio of accuracy of the two meters for a deflection of 10% of full scale range in each meter. [1:10] (b) A 0-100V voltmeter has 200 scale divisions which can be read to half a division. Determine resolution of meter in volt. [0.25 V] (c)
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(16 hours) Elements of measurement‚ Statistical analysis of measurement results‚ Errors and uncertainties in measurement - computation of uncertainty in inputs and outputs. End‚ Line and wave length Standards of length‚ Airy & Bessel points‚ desirable features of end standards‚ calibration of end standards by interferometry - NPL Gauge length interferometer‚ calibration of line standard by micrometer microscope‚ Photoelectric microscope and moir fringe technique‚ measurement of large displacements
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comprises a short inclined railway track with a trolley that rolls down the rails and is stopped by a transversely mounted elastic cord at the bottom‚ as shown below: Although the velocity and acceleration can be estimated approximately from measurements with a ruler and a stopwatch‚ it is more accurate to collect data automatically from a sensor. In this experiment‚ a magnetic sensor mounted underneath the trolley does the job. The sensor contains a small magnet surrounded by a coil. As the
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blockage discounts for all fair value measurements‚ could have a significant effect on some entities • The disclosure requirements are substantial and could present challenges for many entities • IFRS 13 is effective 1 January 2013 and will be adopted prospectively • For more information on the changes to US GAAP‚ see our ‘To the Point’ article Fair value measurement guidance converges at www.ey.com/us/accountinglink. Fair value measurement guidance converges The International
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............................................................... 1.2 THEORY OF SOIL RESISTIVITY...................................................................................................................................... 1.3 MAKING A MEASUREMENT ........................................................................................................................................... 1.3.1 PRINCIPLES.......................................................................................
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Objectives: The objectives of this laboratory were to become familiar with concepts of systematic and random errors‚ use Microsoft Excel to perform a statistical analysis on measurement data‚ perform repeated dimensional measurements on a local standard (a gage block) to determine the overall instrument error‚ Obtain repeated measurements of an extruded rod and report its diameter within a specified probability. Procedure: Material/ Equipment Gage block (0.150 inch) Digital caliper 500-196-20
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so. We repeated this measurement‚ using the same initial height‚ four more times. Then we took the masses and the wingnuts off the horizontal rod and let the 0.2 kg mass fall in the same way as before‚ five times. Then we replaced the masses and the wingnuts‚ but put them both on the edges of the horizontal rod‚ and repeated the same falling mass measurements five times. We moved the masses in towards the centre of the rod and continued to repeat the falling mass measurements. We moved the masses
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performance measures References Further information Feedback 3 INTRODUCTION This new document developed by HSE provides practical guidance for people who understand the principles of health and safety management and wish to improve the measurement of health and safety performance in their organisations. We would welcome feedback on the ideas presented here. The guidance on measuring health and safety performance is organised under these main headings: · Why measure? · What to measure
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Introduction: Measurement is the collection of quantitative data. The proper handling and interpretation of measurements are essential in chemistry and in any scientific endeavor. To use measurements correctly‚ we must recognize that measurements are not numbers. They always contain a unit and some inherent error. We define precision as to how well experimental data and values agree with each other in multiple tests. Another important concept when dealing with measurements is accuracy‚ which
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