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NZQA registered unit standard 20803 version 3Page 1 of 4

Title Manually produce advanced two-dimensional engineering drawings

Level 4 Credits 12

Purpose People credited with this unit standard are able to deter!inedrawing re"uire!ents# perfor! tolerance calculations fordrawings# produce and verif$ advanced two%di!ensional &2'(engineering drawings# and follow drawing office procedures)

Classification *echanical +ngineering , +ngineering 'rawing and 'esign

Available grade Achieved

ntry information

!ecommended s"illsand "nowledge

-nit 2434. Manuallyproduce detailed engineering drawingsunder supervision.

#planatory notes

1 /eferences'rawings !ust be in accordance with the following tandards. or internationale"uivalentA 1100)10112. Technical drawing General principles;A 1100)20112. Technical drawing Mechanical engineering drawing)An abridge!ent of these standards. suitable for the purposes of this unit standard. isAANZ 51 14. Technical Drawing for students. Available from StandardsNew ealand.

2 'efinitionsAdvanced engineering drawings

che!atic diagra!s. which show a co!ple6 arra$ of co!ponents and connectionsin their correct se"uence but not necessaril$ in their correct si7e or location)+6a!ples !a$ include but are not li!ited to proportional h$draulic power s$ste!with closed loop control# pneu!atic step%counter circuit diagra!# duct wor. pipewor or control circuit diagra!s)

9oring. asse!bl$ drawings in orthographic pro:ection) +6a!ples !a$ includebut are not li!ited to !echanical parts and co!ponents such as :ig fra!e. bevelgear support. !ild steel &*( sleeve bracet. e6ploded view of vane air !otor)'rawings at this level !a$ also include sectioning and au6iliar$ views)

Pattern develop!ent. incorporating a !i6 of single and intersecting surfaces)+6a!ples !a$ include but are not li!ited to develop!ent of c$linders. cones.breeches of ; pieces. transition pieces)

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?a$out drawings for !echanical services s$ste!s. co!prising plans and cross%sections drawn to scale to show the ph$sical si7e. la$out and inter%connection ofco!ponents) *echanical services s$ste!s include but are not li!ited to heating.ventilating. air%conditioning. and refrigeration s$ste!s)

!ndustry practice safe and sound trade practice generall$ accepted b$ co!petentpersons within the !echanical engineering industr$)

!nterpretation the e6planation in practical ter!s of features shown graphicall$ in thedrawing)"or#site procedures docu!ents that include worsite rules. codes of practice.e"uip!ent operating instructions. !aintenance schedules. "ualit$ !anage!ents$ste!s. health and safet$ procedures. and e!ergenc$ procedures)

3 Assess!ent infor!ation +vidence is re"uired of the !anual production of at least one drawing each fro!

two of the categories given in e6planator$ note 2) @he evidence relates to the candidates own specific wor produced independentl$

with no advice or support)

$utcomes and evidence re%uirements

$utcome 1

'eter!ine drawing re"uire!ents)

vidence re%uirements

1)1

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2)2 eo!etric tolerances are applied in accordance with the drawing t$pe and :obre"uire!ents)

$utcome &

Produce advanced two%di!ensional engineering drawings)

vidence re%uirements

3)1 . unit standard 2438. and unit standard 243)

Planned review date 31 'ece!ber 201D

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(tatus information and last date for assessment for superseded versions

Process )ersion *ate Last *ate for Assessment

/egistration 1 2D Eul$ 2004 31 'ece!ber 2011

/ollover and/evision

2 20 *arch 200 31 'ece!ber 201D

/eview 3 1> Nove!ber 2011 NA

Consent and Moderation !e%uirements +CM!, reference 0013

@his

20803

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