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 TITLE 19 EDUCATION PART 2 TEXAS EDUCATION AGENCY CHAPTER 127 TEXAS ESSENTIAL KNOWLEDGE AND SKILLS FOR CAREER DEVELOPMENT AND CAREER AND TECHNICAL EDUCATION SUBCHAPTER O SCIENCE, TECHNOLOGY, ENGINEERING, AND MATHEMATICS RULE §127.754 Engineering Mathematics (One Credit), Adopted 2015
 (E) calculate shear stress for a material with a given set of data;     (F) use the Brinell hardness number to determine the ultimate tensile strength of a material;     (G) apply factors of safety to material engineering designs; and     (H) create material testing conditions for a model using equipment such as a polariscope.   (10) The student applies mathematical principles for mechanical drives, including levers, linkages, cams, turnbuckles, pulley systems, gear drives, key fasteners, v-belt drives, and chain drives. The student is expected to:     (A) calculate the weight of an object for a given mass;     (B) analyze and calculate torque for a given application using the proper units of measurement;     (C) calculate the magnitude of force applied to a rotational system;     (D) calculate the mechanical advantage of first-, second-, and third-class levers;     (E) compare the advantages and disadvantages of the three classes of levers for different applications;     (F) calculate and analyze the coefficient of friction in its proper units of measurement;     (G) analyze and calculate mechanical advantage for simple machines using proper units of measurement;     (H) calculate the mechanical advantage of gear drive systems;     (I) compare and contrast at least two methods of loading a mechanical drive system;     (J) calculate rotary mechanical power applied to an application;     (K) analyze the mechanical efficiency of a given application;     (L) demonstrate various examples of pitch and analyze its proper application;     (M) calculate the shaft speed and torque of a belt drive and chain drive system; and     (N) calculate sprocket ratio and analyze its importance to various applications.   (11) The student applies mathematical principles of quality assurance, including using precision measurement tools, statistical process control, control chart operation, analysis of quality assurance control charts, geometric dimensioning and tolerancing, and location, orientation, and form tolerances. The student is expected to:     (A) evaluate the readings of dial calipers and micrometers to make precise measurements;     (B) use at least three measures of central tendency to analyze the quality of a product;     (C) use a manually constructed histogram to analyze a given set of data;     (D) construct and use a mean-value-and-range chart to determine if a process remains constant over a specified range of time;     (E) examine the maximum and minimum limits of a dimension given its tolerance; and     (F) use position tolerance to calculate the location of a hole. Source Note: The provisions of this §127.754 adopted to be effective April 7, 2022, 47 TexReg 1677

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