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Evidence Guide: MEA272A - Apply basic scientific principles and techniques in avionic engineering situations

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

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MEA272A - Apply basic scientific principles and techniques in avionic engineering situations

What evidence can you provide to prove your understanding of each of the following citeria?

Research and identify the range of basic scientific principles and techniques relevant to avionic engineering

  1. The basic scientific principles relating to avionic engineering are researched and reported on from appropriate sources of information and examination of applications.
  2. The basic avionic techniques and associated technologies, software and hardware required to implement scientific principles relating to avionic engineering situations are identified.
The basic scientific principles relating to avionic engineering are researched and reported on from appropriate sources of information and examination of applications.

Completed
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The basic avionic techniques and associated technologies, software and hardware required to implement scientific principles relating to avionic engineering situations are identified.

Completed
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Select basic avionic scientific principles and techniques relevant to particular avionic engineering applications

  1. For particular avionic engineering situations, the relevant basic avionic scientific techniques and principles can be selected.
  2. For particular avionic engineering situations, the relevant basic aeronautical techniques and associated technologies, software and hardware can be selected.
For particular avionic engineering situations, the relevant basic avionic scientific techniques and principles can be selected.

Completed
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For particular avionic engineering situations, the relevant basic aeronautical techniques and associated technologies, software and hardware can be selected.

Completed
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Apply the relevant basic avionic scientific principles and techniques appropriately

  1. The basic avionic scientific principles are applied in a consistent and appropriate manner to obtain any required solution.
  2. Appropriate calculations and coherent units are used in the solution of engineering calculations.
  3. Significant figures are used in engineering calculations.
  4. The basic avionic techniques and associated technologies, software and hardware are applied in a consistent and appropriate manner to obtain required solutions.
The basic avionic scientific principles are applied in a consistent and appropriate manner to obtain any required solution.

Completed
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Appropriate calculations and coherent units are used in the solution of engineering calculations.

Completed
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Significant figures are used in engineering calculations.

Completed
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The basic avionic techniques and associated technologies, software and hardware are applied in a consistent and appropriate manner to obtain required solutions.

Completed
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Quote the results of the application of the basic avionic scientific principles and basic techniques correctly

  1. For applications involving engineering calculations the solution is quoted in an appropriate style.
  2. For applications not involving engineering calculations the solution is quoted in an appropriate style.
For applications involving engineering calculations the solution is quoted in an appropriate style.

Completed
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For applications not involving engineering calculations the solution is quoted in an appropriate style.

Completed
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Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

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Instructions to Assessors

Evidence Guide

The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

A person who demonstrates competency in this unit must be able to apply basic scientific principles and techniques in avionic engineering situations. Competency in this unit cannot be claimed until all prerequisites have been satisfied.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts.

Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency.

Context of and specific resources for assessment

This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate.

The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials.

Method of assessment

This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with applying basic scientific principles and techniques in avionic engineering situations or other units requiring the exercise of the skills and knowledge covered by this unit.

Guidance information for assessment

Required Skills and Knowledge

Required skills

Look for evidence that confirms skills in:

selecting appropriate basic avionic scientific principles to suit specific applications

selecting appropriate basic avionic techniques and associated technologies, software and hardware to suit specific applications

applying basic avionic scientific principles to particular engineering situations

applying and manipulating appropriate formulas for applications involving engineering calculations

applying appropriate calculations to engineering situations

checking the validity of equations is using dimensional analysis

applying basic avionic techniques and associated technologies, software and hardware in a manner appropriate to the application and identified scientific principles.

referring solutions to the original aim of the application.

quoting solutions in appropriate units, using appropriate significant figures.

quoting limitations of solutions, due to assumptions, scientific principles and techniques used

presenting solutions referring to the original aim of the application.

Required knowledge

Look for evidence that confirms knowledge of:

Physics for electronics - complete tasks requiring analysis and application of:

units and measurements

magnetic force

vectors

electric fields and potential

electric current and resistance

capacitance

work, power and energy

Analogue electronics - complete tasks requiring analysis and application of:

negative feedback amplifiers

differential amplifiers

operational amplifiers

amplifier frequency response

thermal circuits/heat exchangers

active filters

fault finding

Digital electronics - complete tasks requiring analysis and application of:

characteristics of digital systems

number systems

Boolean algebra

logic circuits

logic families

construction and testing techniques

flip flop circuits

analogue to digital conversion

digital to analogue conversion

timing and control

combinational logic circuits

Circuit theory - complete tasks requiring analysis and application of:

Kirchhoff's Current and Voltage Laws

Thevenin's network theorem

Norton's network theorem

Superposition network theorem

Inductance, capacitance and resistance (LCR) series circuit analysis

LCR parallel circuit analysis

Series and parallel resonance

Electrical systems - complete tasks requiring analysis and application of:

DC and AC circuit design principles

generators and motors

inverters

power supply, transformer, rectifier, filter, regulator

solenoids

Aerodynamics - complete tasks requiring analysis and application of:

Bernoulli's Theorem

The atmosphere

Aerodynamic forces (lift, drag, weight, thrust)

Stability and control (to a level not requiring the application of calculus)

Thermodynamics - complete tasks requiring analysis and application of heat transfer principles (conduction, convection, radiation)

Instruments - complete tasks requiring analysis and application of:

airspeed measurement

altitude measurement

attitude indication

measurement of quantity, flow, temperature, pressure and position

Control concepts and data communications - complete tasks requiring analysis and application of:

servo and synchronous systems and components

data communication definitions and terminology

Communications - complete tasks requiring analysis and application of:

radio transmission and modulation

radio reception

microphones, amplifiers and speakers

transmission lines and antennas

Pulse - complete tasks requiring analysis and application of:

antennas

waveguides

transmitters/receivers

displays

Light, sound and vibration - complete tasks requiring analysis and application of:

Wave behaviour - standing vs traveling waves, transverse, longitudinal

Light - reflection, absorption, refraction, diffraction, spectrum, infrared, visible, ultraviolet, transmission medium, engineering applications

Sound - pitch, frequency, intensity (power), decibel scale, "noise dose", spectrum, infrasound, audible, ultrasound, speed, natural frequency, resonance, transmission medium, engineering applications

Vibration - sources, balancing, shaft alignment, measurement, damping, engineering applications.

appropriateness of calculations

fundamental and derived quantities

the procedure for carrying out dimensional analysis

the concept of significant figures

the uncertainty of computations based on experimental data

the procedures for determining the significance of figures in calculations

the procedures for estimating errors in derived quantities

Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Sources of information

Reference texts, manufacturer's catalogues and industrial magazines, international aerospace organisation publications, websites, use of phone, email and fax information gathering.

Avionic engineering

The engineering discipline concerned with the conceptual development, research, design, manufacture, implementation, installation, commissioning and maintenance of aerospace electrical, instrument, radio and electronic systems and components and related test equipment for civil and military applications

Basic avionic scientific techniques and principles

Candidates should apply appropriate basic techniques supported by their mathematical skills and introductory knowledge of scientific principles to design, manufacturing, commissioning and maintenance related tasks and projects relating to:

electrical systems and related wiring and components (power generation, distribution, control interfaces with hydraulic and pneumatic systems, and caution and warning systems);

mechanical and electro-mechanical flight instruments and indication systems (quantity, pressure, temperature, position) and components;

electronic systems and components (communications, radio navigation, pulse, display, automatic flight control, flight management, and engine management); and

automatic test stations, adapters and software.

The applications may require the use of one or two basic avionic scientific principles together with a fundamental mathematical calculation leading to process, resources and system choices from a limited range of options.

Basic techniques include basic hand and power tool operations, machining, fitting, welding, moulding, fabricating, wiring and programming techniques.