NZQA Expiring unit standard
Title
21707 version 2
Demonstrate knowledge of automotive electrical principles
Page 1 of 3
Level
Purpose
2 Credits 6
This theory-based unit standard is for people who wish to enter or are employed in the automotive repair industry. People credited with this unit standard are able to demonstrate knowledge of automotive electrical principles.
Classification
Available grade
Motor Industry > Automotive Electrical and Electronics
Achieved
Explanatory notes
Information on automotive electrical principles can be found from: train ing provider, industry and/or manufacturer’s courses; vehicle workshop manuals; automotive electrical textbooks (contact your local book retailer, school or polytechnic library or the public library lending service); useful websites include but are not limited to:
– Automotive Books Ltd http://www.autobooks.co.nz;
– Capital Books http://www.capitalbooks.co.nz;
–
How Stuff Works http://www.howstuffworks.com
;
– New Zealand Book Find http://www.nzbookfind.com;
– public libraries http://www.libraries.co.nz;
–
Technical Books http://www.techbooks.co.nz;
– This unit standard is
expiring
Outcome 1
Demonstrate knowledge of automotive electrical principles.
Evidence requirements
1.1 Electric circuit fundamentals are explained according to textbook explanations.
Range includes but is not limited to
– positive and negative charges, conventional current flow, electron current flow, conductors, insulators, semi-conductors, attraction and repulsion of charges, potential, potential difference (p.d.), electromotive force (e.m.f.), counter e.m.f.

New Zealand Qualifications Authority 2020 MITO New Zealand Incorporated
SSB Code 101542
This unit standard is expiring
New Zealand Qualifications Aut

NZQA Expiring unit standard
1.2
21707 version 2
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Basic units of electrical measurement, and their symbols that are used in automotive applications, are defined according to textbook definitions.
Range volt, ampere, ohm, watt, farad, hertz.
1.3 Electrical circuits on vehicles are described according to textbook descriptions and the manufacturer’s specifications.
Range series circuit, parallel circuit, power sources, protection devices, load devices, controls, conductors.
1.4 Characteristics of resistive circuit types are explained according to textbook explanations.
Range includes but is not limited to – parallel circuits, series circuits, open circuit, closed circuit, shorted circuit, short to ground.
1.5 The principle of Ohm's Law in relation to circuit resistance, current flow, and voltage as applied to automotive parallel circuits and series circuits is described according to textbook descriptions.
1.6 Types of resistors used in automotive circuits are described according to the manufacturer’s specifications.
Range includes but is not limited to – carbon pile, wire wound, variable, colour coded, appearance.
1.7 Functions of capacitors used in automotive circuits are described according to the manufacturer’s specifications.
Range storage, smoothing, suppression.
1.8
This unit standard is motor vehicle circuitry and electrical componentry.
Range
Replacement information This unit standard and unit standard 21667 were replaced by unit standard 29371.
This unit standard is expiring. Assessment against the standard must take place by the last date for assessment set out below.

New Zealand Qualifications Authority 2020 MITO New Zealand Incorporated
SSB Code 101542
This unit standard is expiring
New Zealand Qualifications Aut

NZQA Expiring unit standard 21707 version 2
Status information and last date for assessment for superseded versions
Page 3 of 3
Process Version Date Last Date for Assessment
Registration 1 27 July 2005 31 December 2018
Review 2 21 April 2016 31 December 2018
Consent and Moderation Requirements (CMR) reference 0014
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do
.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and which are assessing against unit standards must engage with the moderation system that applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource requirements.
This unit standard is expiring This unit standard is expiring
MITO New Zealand Incorporated
SSB Code 101542

New Zealand Qualifications Authority 2020 New Zealand Qualifications Aut