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Elements and Performance Criteria

  1. Lay out to block diagram level an aircraft electrical system
  2. Lay out to block diagram level an instrument measuring system
  3. Lay out to block diagram level a pressurisation control system
  4. Lay out to block diagram level an aircraft oxygen system

Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Functions of aircraft electrical systems include:

Power generation, control and distribution

Lighting

Electrically operated systems, such as doors, flap and landing gear systems

System control (e.g. hydraulic, pneumatic, air conditioning, propeller control and anti-skid)

Warning systems

Ice and rain protection

Engine systems

Aircraft electrical system components include:

The major components of each of the above systems that would be shown in a block diagram or schematic

Instrument measuring systems include:

Engine indication

Transmitter/indicator measuring (pressure, temperature and position)

Fuel quantity indication and flow indication

Measuring system components include:

The major components of each of the above systems that would be shown in a block diagram or schematic

Pressurisation control system components include:

The major components of a pressurisation control system that would be shown in a block diagram or schematic.

Types of oxygen system include:

Gaseous

Liquid

Chemical

Oxygen system components include:

The major components of each of the above systems that would be shown in a block diagram or schematic

Performance Evidence

Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria under the specified conditions of assessment, and must include:

sketching typical avionic systems at block diagram level.

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.

Knowledge Evidence

Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

DC and AC power generation, control and distribution

aircraft electrical systems and their components

aircraft electrical system maintenance requirements

the atmosphere

use of synchros and servos

basics of analogue electronics

aircraft instrument measuring systems and their components

aircraft instrument measuring system maintenance requirements

air conditioning and pressurisation systems

air conditioning and pressurisation system maintenance requirements

types of aircraft oxygen systems and their applications

oxygen system maintenance requirements and related cleanliness and safety precautions.