(K) apply the correct feed rate for a computeraided
manufacturing device by using calculation;
(L) calculate the pressure drop in an injection mold
system;
(M) design a gate size in an injection mold system
using the gate width and depth formulas;
(N) determine the size of a mold; and
(O) create size runners for a multicavity mold.
(7) The student calculates electronic quantities and
uses electrical measuring instruments to experimentally test their
calculations. The student is expected to:
(A) apply common electronic formulas to solve problems;
(B) use engineering notation to properly describe calculated
and measured values;
(C) compare and contrast the mathematical differences
between a direct current and alternating current;
(D) show the effect and give an application of an inductor
in an alternating current circuit;
(E) show the effect and give an application of a capacitor
in an alternating current circuit;
(F) create a resistive capacitive timing circuit in
a timedelay circuit;
(G) calculate the output voltage and current load of
a transformer;
(H) calculate the effective alternating current voltage
root mean square given the peak alternating current voltage and the
peak alternating current voltage given the root mean square value;
and
(I) calculate the cost of operating an electric motor.
(8) The student applies mathematical principles of
pneumatic pressure and flow to explain pressure versus cylinder force,
apply and manipulate pneumatic speed control circuits, and describe
maintenance of pneumatic equipment, centrifugal pump operation and
characteristics, data acquisition systems, pump power, and pump system
design. The student is expected to:
(A) calculate the force output of a cylinder in retraction
and extension;
(B) explain how gage pressure and absolute pressure
are different;
(C) explain the individual gas laws and use the ideal
gas law to solve problems;
(D) convert air volumes at pressures to free air volumes;
(E) compare dew point and relative humidity to explain
their importance;
(F) explain the importance of the two units of pump
flow rate measurement;
(G) convert between mass and volumetric flow rate;
(H) differentiate between unit analysis such as converting
units of pressure between English and SI units and dimensional analysis
such as Force and Pressure;
(I) convert between units of head and pressure;
(J) explain the importance of total dynamic head in
terms of suction and discharge head;
(K) demonstrate the measurement of the total head of
a centrifugal pump;
(L) calculate Reynolds number and determine the type
of fluid flow in a pipe, including laminar flow, transitional flow,
and turbulent flow;
(M) calculate friction head loss in a given pipe length
using head loss tables or charts;
(N) calculate total suction lift, total suction head,
total discharge head, and the total dynamic head of a system for a
given flow rate;
(O) calculate hydraulic power;
(P) calculate centrifugal pump brake horsepower given
pump efficiency and hydraulic power;
(Q) calculate the effect of impeller diameter and speed
on the flow rate of a centrifugal pump and pump head;
(R) predict the effect of impeller diameter on a pump
head capacity curve; and
(S) calculate net positive suction head.
(9) The student applies mathematical principles of
material engineering, including tensile strength analysis, data acquisition
systems, compression testing and analysis, shear and hardness testing
and analysis, and design evaluation. The student is expected to:
(A) calculate stress, strain, and elongation using
the modulus of elasticity for a material or model with a given set
of data;
(B) analyze and explain the importance of sensitivity
in relation to material engineering;
(C) analyze the operation of a dataacquisition application
or program;
(D) mathematically analyze a part for stress and strain
under a compression load;
(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, vbelt 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 thirdclass 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 meanvalueandrange 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.
