第1題If

the

saw

gets

stuck

during

cutting,

()AAdjust

the

direction

appropriately

and

avoid

rocking

from

side

to

side.

BAdjust

the

direction

appropriately

and

rock

from

side

to

side.

CAdjust

the

direction

appropriately

and

reinstall

the

saw

blade

if

it

breaks.

DRedrill

and

recut.第2題Before

using

a

saw,

the

saw

blade

needs

to

be

installed,

with

the

saw

blade

facing()

and

the

teeth

facing()

.AInward,downwardBOutward,

downward

COutward,

upwardDInward,upward第3題Whatmaterialisspeciallyformulatedforjewelrysoldering?ASolderinggunBBoraxCFluxDAlum第4題The

tools

that

can

be

used

to

engrave

patterns

on

metal

and

assist

in

gemstone

setting

are

what?AChiselBSandpaperCDouble-headed

lock

toolDAgate

knife第5題Usingalumtoboilandcleanjewelrycanachievewhateffect?ARemove

tarnishBCrystallize

tarnishCRemoveoxidationDIncrease

fluxibility第6題Whattoolisprimarilyusedtoprovideaworksurfaceduringweldingandismadeofheat-resistantmaterials?ASolderingtileBSolderingtorchCWorkbenchDOxyhydrogenweldingmachine第7題The

following

statements

regarding

the

use

of

a

file

are

incorrect:AAfter

using

the

file,

place

it

in

a

stable

position

to

prevent

it

from

falling.

BWhen

precious

metal

gets

stuck

in

the

middle

of

the

file

teeth,

it

can

be

removed

using

a

brass

wire

brush.

CUse

two

files

to

grind

each

other

to

remove

surface

precious

metal

debris.DThe

sequence

for

using

a

file

to

polish

metal

is

from

coarse

to

fine.第8題When

making

metal

pipes

or

wires

that

are

difficult

to

manually

pull,

labor

intensity

can

be

reduced

by

using

(drawing

bench).ADrawing

benchBPressing

machineCPliersDWelding

gun第9題When

performing

multicomponent

assembly

welding,

it

is

advisable

to

preheat

the()

to

prevent

rapid

temperature

increase

in

the

e(),

which

could

lead

to

welding

failure

or

melting

of

both

components.ASmaller

components;

larger

componentsBHeat

both

simultaneously

CNot

understoodDLarger

components;

smaller

components第10題Whichtoolisthemainequipmentforforgingandpressingtopreparesheetmetalandwire?ABench

grindeBTweezersCPressing

machineDWelding

gun第1題Theprocessoffinetreatmentwithtoolssuchasfile,sandpaper,rubberwheeliscalled()inthejewelrymakingprocessAMaterialpreparationBPieceproductionCsplicingweldingDholdingdie第2題The

process

of

fine-tuning

using

files,

sandpaper,

buffing

wheels,

and

other

tools

in

jewelry

making

is

called

()AFinishing

processBComponent

assemblyCSoldering

assemblyDMaterial

preparation

第3題Sandpaperisapolishingmaterialobtainedbyattachingvariousabrasiveparticlestopaper.()thegrade,()thesandpapergrit.AThe

higher,

the

coarser

BThe

lower,

the

finer

CUnrelated

to

the

grade,

the

grade

only

indicates

the

particle

materialDThe

higher,

the

finer

第4題What

tool

is

used

to

attach

various

abrasive

particles

to

paper

to

obtain

polishing

materials?AEmery

paper

BSandpaper

CPolishing

waxDBorax第5題startingplateisdividedinto().Awaxedplate,copperplate,silverplateBwaxedplate,clayplate,copperplateCwaxedplate,daguerreotype,computerwaxedplateDwaxedplate,copperplate,computerwaxedplateProductionofjewelrysettingschaptertest第1題Thepressingmachineisthemainequipmentforpreparingjewelrymaterialsandiscommonlydividedinto()andelectricpressingmachines.AmanualpressingmachinesBHydraulicpressingmachineCWheelbrushpolishingmachineDBenchgrinder第2題Usingalumtoboilandcleanjewelrycanachievewhateffect?ARemove

tarnishBCrystallize

tarnishCRemoveoxidationDIncrease

fluxibility第3題Whattoolisprimarilyusedtoprovideaworksurfaceduringweldingandismadeofheat-resistantmaterials?ASolderingtileBSolderingtorchCWorkbenchDOxyhydrogenweldingmachine第4題Whichtoolisprimarilyusedinjewelrymakingtocutmetalmaterials?ASandpaperBHangingmillCJeweler'ssawDFile第5題Whichtoolisprimarilyusedinjewelrymakingforgrippingvariousmaterials?AJeweler'ssawBPliersCFileDCaliper第6題What

is

the

composition

of

18K

white

gold?AGoldBSilverCZnicDCopper正確答案：ABCD第7題WhatisthemeltingpointofPlatinum?A2450℃B1782℃C1773℃D2200℃第8題Whatisthemeltingpointof18Kgold?A1040℃B943℃C927℃D996℃第9題Whatisthemeltingpointofgold?A1240℃B768℃C930℃D1064℃第10題WhatisthechemicalelementsymbolforRhodium?APtBPdCRhDAg第11題WhatisthechemicalelementsymbolforPalladium?APdBPtCRhDAg第12題WhatisthechemicalelementsymbolforPlatinum?AAgB