NZQA registered unit standard
20917 version 3
Page 1 of 3
Title
Demonstrate basic knowledge of engineering materials
Level
2
Credits
2
Purpose
People credited with this unit standard are able to, in terms of
engineering materials, demonstrate basic knowledge of the
production of engineering materials; compare physical
characteristics of engineering materials; and identify the
selection factors and applications of engineering materials.
Classification
Mechanical Engineering > Engineering - Materials
Available grade
Achieved
Explanatory notes
Definition
Primary raw materials – include basic and fundamental compounds, elements, and agents
used to produce engineering materials.
Assessment information
This unit is intended to cover entry level knowledge of engineering materials, to establish a
foundation knowledge base.
Range
Engineering materials – wood, metal, concrete, polymers.
Outcomes and evidence requirements
Outcome 1
Demonstrate basic knowledge of the production of engineering materials.
Evidence requirements
1.1
The primary raw materials used in the production of engineering materials are
identified.
1.2
Key process steps in the production of engineering materials are identified.
Outcome 2
Compare physical characteristics of engineering materials.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20917 version 3
Page 2 of 3
Evidence requirements
2.1
Engineering materials are compared qualitatively in terms of their physical
characteristics.
Range
physical characteristics– machinability, weldability, hardenability,
malleability, ductility, durability, thermal conductivity, electrical
conductivity, surface texture / finish, strength, density, hardness,
lustre, colour, melting point, wear resistance.
Outcome 3
Identify the selection factors and applications of engineering materials.
Evidence requirements
3.1
Common applications of engineering materials are identified.
Range
3.2
two applications for each engineering material.
Factors influencing the selection of materials are identified.
may include but is not limited to – cost, availability, preparation
time, appropriateness for job, ease of working, job specifications,
mechanical properties, machine capability.
Mechanical properties, appropriateness for job, and at least one
other factor are required.
Range
Replacement information
This unit standard replaced unit standard 4795.
Planned review date
31 December 2016
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
26 July 2004
31 December 2014
Review
2
17 June 2011
N/A
Revision
3
17 November 2011
N/A
Consent and Moderation Requirements (CMR) reference
0013
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20917 version 3
Page 3 of 3
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.
Comments on this unit standard
Please contact Competenz qualifications@competenz.org.nz if you wish to suggest
changes to the content of this unit standard.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016