AdultsCatalogue - page 55

53 2
Vocational Training
Class Audio CD
Unit
Kick off
Lookat thepicture.Answer thequestions.
Whichpartsof the systemneed to stretchabit?
Whichpartsof the systemneed tobendabit?
Canyounameany forces thatacton the system?
Strength and stiffness
a b c
tension shear compression
A B C
Vocabulary
Forcesand strain
Match thepictures,words,anddiagrams.
OEfC_Eng_SB1_SignOff.indb 22 10/10/2012 09:29
Strengthand stiffness
In thisunit
testing
thePassive
testing strengthand stiffness
theMillauViaduct
Thismaterial isbending.When thematerialbends,
youcanmeasure thechange.Thechange iscalled
deflection.
In thecablecarpictureonp. ,whatexamplesof
tension,compression,shear,andbendingcanyou see?
It’s my job
Beforeyou readabout JoaquinCalvoHernandez,
answer thequestions.
Whatdoesa testengineerdo?
Whatqualitiesare important formaterials for
aircraft?
­ Why is testingextremely important foraircraft?
Readandcheckyouranswers.
Answer thequestions.
Whatfield is Joaquin’sdegree in?
Wheredid Joaquindoworkexperience?
­ What ‘extra service’does Joaquinprovide inhis
o‡ce?
ˆ What threematerialsdoes Joaquinmention?
‰ Whatmeasurementequipmentdoes Joaquin
mention?
Š What test isdone to seehowacomponentwill
performover time?
Wouldyou like todo Joaquin’s job?Why /whynot?
Joaquin Calvo Hernandez
Iwork foracompany thatdesignsandmakes test
equipment for theaircraftandcar industries.Wehave
o‡ces inBarcelonaandMadrid.Iwork in theMadrid
o‡cemainlyon testequipment foraEuropeanaircraft
company.Igraduated inmechanicalengineeringand
at thesame timestudiedEnglish,taking two technical
subjects inEnglish.Duringmydegreecourse,Ispent
ninemonths in thewestofEnglandworking fora
company thatmakemachineparts.After Igraduated,I
washiredbymypresentcompanyand Iwasassigned to
thedesignandoperationof testequipment.Engineers
fromFranceandEnglandoftenvisitouro‡ces.We
speakEnglish together.Ofcourse I talkwith themabout
myownprojects,butsometimesmyco-workersaskme
to talkabout theirprojectsaswell.So Iwork informally
asakindof translator!But Idon’tmind.
Rightnow, I’m testingaircraft fuselagepanels that
aremade from the latestcarbonfibrecomposite
materials.Thesematerialsare light,withhigh
strengthand sti˜ness,but theyareharder toproduce
thanpartsmade fromaluminiumor titaniumalloys.
However, improvements in theirpropertiesand
inmanufacturingmethodsaremadeall the time.
Measured loadsareappliedatcertainpoints toput
stresson thecomponent.Weusedi˜erent instruments
suchas straingauges, loadcells,andpressure
transmitters.Sometimesweperform fatigue tests
where the load isvariedmany times to simulate the
numberofaircraft take-o˜sand landings.
Aircraftcomponentsare tested thoroughlybecause
any failurecouldend indisaster. I feelhappy thatmy
job iskeepingpeople safe.
Complete the sentencesusing thewords in .
When forcesareapplied toamaterial, its shape
changes.Themeasureof thechange in shape iscalled
strain.Forcesonmaterialscanbe:
š – thematerial is stretchedandyoucan
measure thechange in thematerial
š – thematerial iscompressedandyou
canmeasure thechange in thematerial
š­– the forcesarenot in linewitheach
other.
compression
tension
deflection Aircraft fuselagesare tested during design and
developmentand samples are taken during construction.
OEfC_Eng_SB1_SignOff.indb 23 10/10/2012 09:29
Give students the language and skills they need in work situations
Components
Student’s Book Teacher’s Resource Book Student’s Site
Teacher’s Site
Practical English lessons allow
students to experience real-life
language situations through carefully
staged dialogue practice, giving
students the tools they need to
communicate effectively in a wide
variety of situations.
Oxford English for Careers Level 1 Level 2 Level 3
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Engineering Student’s Book 9780194579490
Finance Student’s Book 9780194569934
Medicine Student’s Book 9780194023009 9780194569569
Nursing Student’s Book 9780194569774 9780194569880
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Technology Student’s Book 9780194569507 9780194569538
Technology for Engineering and
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Tourism Student’s Book 9780194551007 9780194551038 9780194551069
For a full list of components visit
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