MULTI
CHOI
CEPAPERONE
1.
When‘
hy
dr
ogencont
r
ol
’
i
sspeci
f
i
edf
oramanual
met
al
ar
cwel
di
ngpr
oj
ectt
he
el
ect
r
odewoul
dnor
mal
l
ybe:
a. Cel
l
ul
ose
b. I
r
onoxi
de
c. Aci
d
d. Basi
c
2.
Youwoul
dcer
t
ai
nl
yr
ecogni
seahy
dr
ogencont
r
ol
l
edf
l
uxcov
er
edel
ect
r
odef
r
om i
t
s:
a. Col
our
b. Lengt
h
c. Tr
adename
d. BS639/
AWScodel
et
t
er
3.
Whenmanual
met
al
ar
cwel
di
ngi
sbei
ngcar
r
i
edoutonanopenconst
r
uct
i
onsi
t
e,
whi
chgr
oupofwel
der
sar
emostl
i
kel
yt
or
equi
r
econt
i
nuousmoni
t
or
i
ng?
a. Concr
et
eshut
t
er
i
ngwel
di
ngt
eams
b. Pi
pewel
di
ngt
eams
c. Pl
at
ewel
der
s
d. Pl
antmai
nt
enancewel
der
s
4.
Younot
i
cemanual
met
al
ar
cel
ect
r
odes,
st
r
i
ppedoff
l
ux,
ar
ebei
ngusedasf
i
l
l
er
wi
r
ef
orTI
Gwel
di
ng.Youwoul
dobj
ectbecause:
a. I
ti
st
ooexpensi
v
e
b. Thewi
r
ewoul
dbet
oot
hi
ck
c. Themet
al
composi
t
i
onmaybewr
ong
d. Thewi
r
ei
st
ooshor
t
5.
Whenopensi
t
ewor
ki
ng,
ser
i
ouspor
osi
t
yi
nmet
al
ar
cwel
dsi
sbr
oughtt
oy
our
at
t
ent
i
on.Whatwoul
dy
oui
nv
est
i
gat
e?
a. El
ect
r
odet
y
pe
b. Powerpl
antt
y
pe
c. El
ect
r
odest
or
age
d. Dayt
emper
at
ur
e
6.
Thest
eel
composi
t
i
oni
nast
r
uct
ur
al
cont
r
acti
schangedf
r
om 0.
15%car
bon0.
6%
manganese,
t
o0.
2%car
bon1.
2%manganese.Thi
smi
ghti
nf
l
uencet
hei
nci
denceof
:
a. Por
osi
t
y
b. Cr
acki
ngi
nt
hewel
dar
ea
c. Under
cutf
orf
i
l
l
etwel
ds
d. Lackoff
usi
ondef
ect
s
7.
Oneoft
hef
ol
l
owi
ngal
l
oy
si
snonmagnet
i
c-whi
ch?
a. 4.
0%chr
omi
um mol
y
bdenum
b. 12.
0%chr
omi
um
c. Aust
eni
t
i
cst
ai
nl
essst
eel
d. 9.
0%ni
ckel
st
eel
8.
WhenTI
Gwel
di
ngaust
eni
t
i
cst
ai
nl
essst
eel
pi
pe,
ar
gongasbacki
ngi
scal
l
edf
or
.
1
Thi
si
st
o:
a. Pr
ev
entoxi
dat
i
on
b. Pr
ev
entunder
beadcr
acki
ng
c. Pr
ev
entpor
osi
t
y
d. Cont
r
ol
t
hepenet
r
at
i
onbeadshape
9.
Pr
eheat
i
ngacar
bonst
eel
manual
met
al
ar
cwel
di
ngi
scar
r
i
edoutt
omi
ni
mi
set
he
r
i
skof
:
a. Scat
t
er
edpor
osi
t
y
b. Wor
m hol
epor
osi
t
y
c. Par
entmet
al
cr
acki
ng
d. Lackofpenet
r
at
i
on
10. I
nUKpr
act
i
ce,
BS499speci
f
i
est
hatt
hedr
awi
ngdi
mensi
onquot
edf
oraf
i
l
l
etwel
d
i
st
he:
a. Legl
engt
h
b. Thr
oatt
hi
ckness
c. Wel
dwi
dt
h
d. Act
ual
t
hr
oatt
hi
ckness
11. Foropensi
t
emanual
met
al
wel
di
ngt
hef
ol
l
owi
ngequi
pmenti
sav
ai
l
abl
e.Whi
ch
woul
dy
ouchoosef
orsaf
esi
t
ewor
ki
ng?
a. Si
ngl
eoper
at
ort
r
ansf
or
mer
b. Mul
t
i
oper
at
ort
r
ansf
or
mer
s
c. AC/
DCcomposi
t
epoweruni
t
d. Di
esel
engi
nedr
i
v
enmot
orgener
at
or
12. I
fsubmer
gedar
cwel
di
ngi
susedt
omakebut
twel
ds,
whi
chwoul
dy
oubemost
cr
i
t
i
cal
of
?
a. Ther
ootgapt
ol
er
ance
b. Theangl
eofpr
epar
at
i
on
c. Ther
ootf
acewi
dt
h
d. Thegascutf
i
ni
sh
13. Dur
i
ngCO2wel
di
ng,
t
hear
cl
engt
hi
smostl
i
kel
yt
obeaf
f
ect
edby
:
a. Thewi
r
edi
amet
er
b. Thecur
r
entr
et
ur
nconnect
i
ons
c. Thegasf
l
owr
at
e
d. Thet
or
cht
owor
kangl
e
14. Pr
eheat
i
ngf
orar
cwel
di
ngappl
i
est
o:
a. Assembl
ywel
di
ngonl
y
b. Assembl
yandt
ackwel
di
ng
c. Joi
nt
sov
er25mm t
hi
ckonl
y
d. Cr
uci
f
or
m wel
dsonl
y
15. Whi
choneoft
hef
ol
l
owi
ngst
at
ement
si
scor
r
ect
?
a. Pr
eheat
i
ngi
ncr
easeshar
dness
b. Pr
eheat
i
ngi
ncr
easescool
i
ng
c. Pr
eheat
i
ngi
ncr
easesdi
l
ut
i
on
d. Pr
eheat
i
ngi
ncr
easesshr
i
nkagest
r
ess
2
16. Youseeawel
derusi
nganoxy
acet
y
l
enef
l
amewi
t
hal
ongf
eat
her
edi
nnercone.
Whatwoul
dbet
heef
f
ectoft
hi
soncar
bonst
eel
?
a. Thewel
dwoul
dbehar
dandbr
i
t
t
l
e
b. Thewel
dcoul
dbet
oosof
t
c. Ther
ewi
l
l
benoef
f
ectont
hewel
d
d. Thewel
dwi
l
l
hav
eunder
cut
17. Awel
derqual
i
f
i
cat
i
ont
esti
st
ov
er
i
f
y
:
a. Theski
l
l
oft
hewel
der
b. Thequal
i
t
yoft
hemat
er
i
al
s
c. Thenondest
r
uct
i
v
et
estpr
ocedur
es
d. Themanuf
act
ur
i
ngmet
hods
18. Af
abr
i
cat
i
ngpr
ocedur
ecal
l
sf
orf
i
l
l
etwel
dst
obe'
bl
endedi
n'
bygr
i
ndi
ng.Thi
s
i
nf
l
uences:
a. HAZ.cr
acki
ng
b. Fat
i
guel
i
f
e
c. Resi
dual
st
r
ess
d. Yi
el
dst
r
engt
h
19. Bendt
estspeci
menshav
ebeent
akenf
r
om a25mm t
hi
ckcar
bonst
eel
but
twel
d.
Whi
chwoul
dshowl
ackofi
nt
er
r
unf
usi
on?
a. Si
debend
b. Rootbend
c. Facebend
d. Gui
dedbend
20. Lamel
l
art
ear
i
nghasoccur
r
edi
nast
eel
f
abr
i
cat
i
on.BEFOREwel
di
ngcoul
di
thav
e
beenf
oundby
:
a. Xr
ayexami
nat
i
on
b. Dy
epenet
r
ant
c. Ul
t
r
asoni
cexami
nat
i
on
d. I
twoul
dnothav
ebeenf
oundbyanyi
nspect
i
onmet
hod
21. Youar
et
oov
er
seet
hear
cwel
di
ngofsomemachi
nef
i
t
t
i
ngsandf
i
ndt
hatt
heyar
e
cadmi
um pl
at
ed.Woul
dy
ou:
a. Per
mi
ti
tt
opr
oceed
b. Per
mi
ti
tt
opr
oceedwi
t
hf
umeext
r
act
i
on
c. St
opt
heoper
at
i
onatonce
d. Adv
i
set
hewel
dert
odr
i
nkmi
l
kandpr
oceed
22. Oneoft
her
easonsf
orexcl
udi
nghy
dr
ogenf
r
om t
hewel
dmet
al
i
st
opr
ev
entt
he
wel
df
r
om:
a. Cr
acki
ng
b. Cool
i
ngsl
owl
y
c. Cool
i
ngqui
ckl
y
d. Expandi
ng
23. Whenamet
al
r
egai
nsi
t
sor
i
gi
nal
shapewhenast
r
essact
i
nguponi
ti
sr
emov
ed,
t
he
3
met
al
i
ssai
dt
ohav
e:
a. Duct
i
l
i
t
y
b. Pl
ast
i
ci
t
y
c. Mal
l
eabi
l
i
t
y
d. El
ast
i
ci
t
y
24. Pr
oofst
r
essi
susedwhennonf
er
r
ousmet
al
sar
eunder
goi
ngt
ensi
l
et
est
st
o
det
er
mi
net
heequi
v
al
ent
:
a. Tenaci
t
y
b. El
ast
i
ci
t
y
c. Yi
el
dst
r
engt
h
d. Tensi
l
est
r
engt
h
25. Tot
estacomponentf
orv
i
br
at
i
onal
l
oadi
ng,
asui
t
abl
emechani
cal
t
estwoul
dbe:
a. I
mpact
b. Tensi
l
e
c. Compr
essi
v
e
d. Fat
i
gue
26. Themai
nr
easonf
orpr
eheat
i
ngmedi
um andhi
ghcar
bonst
eel
sbef
or
ecut
t
i
ngby
oxy
f
uel
gast
echni
quei
st
o:
a. I
mpr
ov
et
hequal
i
t
yoft
hecut
b. I
ncr
easet
hecut
t
i
ngspeed
c. Ref
i
net
hegr
ai
nst
r
uct
ur
e
d. Pr
ev
enthar
deni
ngandcr
acki
ng
27. Onepur
poseofami
cr
oscopi
cexami
nat
i
onofawel
di
st
oest
abl
i
sht
he:
a. St
r
engt
hoft
hewel
d
b. Numberofal
l
oy
i
ngel
ement
s
c. Gr
ai
nsi
ze
d. Numberofr
unsused
28. Thepr
edomi
nantst
r
uct
ur
eofanhy
per
eut
ect
oi
dst
eel
t
hathasbeenquenchedat
abov
ei
t
suppercr
i
t
i
cal
poi
ntwi
l
l
be:
a. Aust
eni
t
e
b. Mar
t
ensi
t
e
c. Tr
oost
i
t
e
d. Sor
bi
t
e
29. Whenwel
dmet
al
r
ef
i
nementt
akespl
acei
namul
t
i
r
undeposi
t
,
i
ti
sknownbyt
he
t
er
m:
a. Wel
danneal
i
ng
b. Wel
dr
ef
i
ni
ng
c. Wel
dnor
mal
i
si
ng
d. Wel
dr
ecr
y
st
al
l
i
sat
i
on
30. Oneadv
ant
ageofmet
al
gasar
cshi
el
dedwel
di
ngi
s:
a. Canbeusedi
ndr
aught
yl
ocat
i
onswi
t
houtpr
ot
ect
i
on
b. Pr
oducesadeposi
tl
owi
nhy
dr
ogencont
ent
c. Anywel
di
ngposi
t
i
oncanbewel
dedwi
t
hspr
ayt
r
ansf
er
d. Fi
nespat
t
eratnozzl
er
est
r
i
ct
i
nggasf
l
ow
MULTI
CHOI
CEPAPERTWO
4
1.
BS499communi
cat
esbyt
heuseofsy
mbol
st
het
y
peofj
oi
ntpr
epar
at
i
ont
obe
used.Whi
ch
oft
hef
ol
l
owi
ngsy
mbol
si
ndi
cat
est
hedept
hofwel
dpenet
r
at
i
onr
equi
r
edont
he
j
oi
nt
?
a.
b.
10
c.
10
d.
2.
10
Whi
choft
hef
ol
l
owi
ngsy
mbol
swoul
di
ndi
cat
et
hatawel
dhast
obef
i
ni
shedont
he
'
ot
her
'
si
deoft
hewel
d?
a.
b.
c.
d.
3.
Theuseoff
l
uxwi
t
hgasshi
el
dedmet
al
ar
cwel
di
ngal
l
ows:
a. Sheetmet
al
t
obewel
ded
b. Ast
abl
ear
cwhenusi
nghi
ghcur
r
entdensi
t
i
es
c. Al
umi
ni
um t
obewel
ded
d. Lessdi
l
ut
i
onoft
hewel
dbyt
hepar
entmet
al
4.
I
nMMAwel
di
ngwhatpar
amet
eri
susedf
orcont
r
ol
ofpenet
r
at
i
oni
nt
ot
hebase
mat
er
i
al
?
a. Vol
t
age
b. Wel
di
ngspeed
c. I
r
onpowder
si
nt
hecoat
i
ng
d. Cur
r
ent
5.
I
nt
hewel
di
ngofabut
tj
oi
ntf
r
om onesi
de,
t
hepr
of
i
l
eoft
her
ootbeadi
scont
r
ol
l
ed
by
:
5
a.
b.
c.
d.
Rootf
ace
Bev
el
angl
e
Rootgap
Al
l
oft
heabov
e
6.
Whatt
y
peofpowerchar
act
er
i
st
i
ci
sr
equi
r
edf
ormanual
wel
di
ng?
a. Const
antv
ol
t
age
b. Fl
atchar
act
er
i
st
i
c
c. Dr
oopi
ngchar
act
er
i
st
i
c
d. DCgener
at
or
7.
Whi
choft
hef
ol
l
owi
ngt
est
swoul
di
ndi
cat
et
het
oughnessofwel
dmet
al
/
par
ent
met
al
-HAZ?
a. Macr
o
b. Ni
ckbr
eak
c. Har
dness
d. Char
pyv
eenot
ch
8.
Degr
easi
ngcomponent
si
sessent
i
al
f
orqual
i
t
ywel
di
ngbutsomeagent
smay
:
a. Causecor
r
osi
onpr
obl
ems
b. Gi
v
eof
fphosgenegas
c. Leav
er
esi
dues
d. Al
l
t
heabov
e
9.
Whi
choft
hef
ol
l
owi
ngel
ement
shast
hegr
eat
eref
f
ectont
hehar
denabi
l
i
t
yofa
st
eel
pl
at
e?
a. Mol
y
bdenum
b. Chr
omi
um
c. Ti
t
ani
um
d. Car
bon
10. I
nMAG/
CO2wel
di
ngwhi
chpar
amet
ergi
v
est
hegr
eat
estcont
r
ol
ofwel
d
appear
ancedur
i
ngdi
pt
r
ansf
erorshor
t
ci
r
cui
t
i
ngwel
di
ng?
a. Wi
r
est
i
ckoutl
engt
h
b. Amper
age
c. Wi
r
ef
eedspeed
d. I
nduct
ance
11. I
nMMAwel
di
ng,
t
hesl
agspr
oducedcanbev
ar
i
edt
osui
tt
hewel
di
ngposi
t
i
on.
Whi
cht
y
peofsl
agwoul
dber
equi
r
edf
orwel
di
ngi
nt
heHVposi
t
i
on?
a. Fl
ui
d
b. Vi
scous
c. Semi
f
l
ui
d
d. Noneoft
heabov
e
12. Thewel
dmet
al
deposi
tofMMAel
ect
r
odesachi
ev
esi
t
smechani
cal
st
r
engt
h
t
hr
ough:
a. Thecor
ewi
r
e
b. Thef
l
uxcoat
i
ng
c. I
r
onpowder
swi
t
ht
hef
l
uxcoat
i
ng
d. Noneoft
heabov
e
6
13. Whatconst
i
t
uenti
sneededi
nt
hecoat
i
ngofanel
ect
r
odet
opr
ev
entt
hef
or
mat
i
on
ofpor
osi
t
yi
nt
hewel
di
ngofar
i
mmi
ngst
eel
?
a. I
r
onpowder
s
b. Cal
ci
um f
l
uor
i
de
c. Si
l
i
con
d. Cal
ci
um car
bonat
e
14. Wel
dsmadewi
t
hhi
ghheati
nput
sshowar
educt
i
oni
nwhi
choft
hef
ol
l
owi
ng
pr
oper
t
i
es?
a. Duct
i
l
i
t
y
b. Toughness
c. Fat
i
guest
r
engt
h
d. Mechani
cal
st
r
engt
h
15. I
nt
hewel
di
ngofaust
eni
t
i
cpi
pewor
kt
hebor
ei
susual
l
ypur
gedwi
t
har
gont
o:
a. Pr
ev
entf
or
mat
i
onofpor
osi
t
yi
nt
hewel
d
b. Pr
ev
entbur
nt
hr
oughi
nt
her
ootr
un
c. Pr
ev
entoxi
dat
i
onoft
her
ootbead
d. El
i
mi
nat
et
hef
or
mat
i
onofhy
dr
ogen
16. I
nXr
aywor
kt
hequal
i
t
yoft
her
adi
ogr
aphi
ci
magei
sassessedbyt
he:
a. Densi
t
yoft
hef
i
l
m
b. I
QIi
ndi
cat
or
c. KVAav
ai
l
abl
e
d. St
andof
fdi
st
ance
17. Ast
eel
descr
i
bedasQTwi
l
l
hav
ei
mpr
ov
edt
ensi
l
epr
oper
t
i
esbecausei
thas:
a. Hadcont
r
ol
ofchemi
cal
composi
t
i
on
b. Beenheat
t
r
eat
ed
c. Beenqual
i
t
yt
est
ed
d. Beenv
acuum mel
t
ed
18. Whi
choneoft
hef
ol
l
owi
ngt
y
pesofst
eel
woul
dgi
v
er
i
set
ot
hef
or
mat
i
onof
por
osi
t
ywhenaut
ogenousl
ywel
dedwi
t
hanar
cpr
ocess?
a. Ful
l
yki
l
l
edst
eel
b. Semi
ki
l
l
edst
eel
c. Ri
mmi
ngst
eel
d. Fi
negr
ai
nedst
eel
19. I
nsubmer
gedar
cwel
di
ngt
heuseofexcessi
v
el
yhi
ghv
ol
t
agewoul
dr
esul
ti
n:
a. I
nsuf
f
i
ci
entf
l
uxmel
t
i
ng
b. Excessi
v
ef
l
uxmel
t
i
ng
c. Sl
agr
emov
al
di
f
f
i
cul
t
i
es
d. Spat
t
er
20. Cel
l
ul
osi
cel
ect
r
odesar
eof
t
enusedwhenwel
di
ngt
her
ootpassofpi
pesi
nt
hef
i
el
d
7
because:
a. Hy
dr
ogencont
r
ol
i
sneeded
b. Ther
ear
ei
r
onpowder
si
nt
heel
ect
r
ode
c. Hi
gherar
cv
ol
t
agecanbeobt
ai
ned
d. Shor
t
erar
cl
engt
hcanbeobt
ai
ned
21. I
nt
hewel
di
ngofaust
eni
t
i
cst
ai
nl
essst
eel
s,
t
heel
ect
r
odeandpl
at
emat
er
i
al
canbe
pur
chasedwi
t
hl
owcar
boncont
ent
s.Ther
easonf
ort
hi
si
st
opr
ev
ent
:
a. Cr
acki
ngi
nt
heheataf
f
ect
edzone
b. Thef
or
mat
i
onofchr
omi
um car
bi
des
c. Cr
acki
ngi
nt
hewel
dmet
al
d. Di
st
or
t
i
on
22. Submer
gedar
cf
l
uxescanbesuppl
i
edi
nt
wof
or
ms.Thesear
e:
a. Si
nt
er
edandagi
t
at
ed
b. Agi
t
at
edandf
used
c. Si
nt
er
edandaggl
omer
at
ed
d. Fusedandaggl
omer
at
ed
23. I
nast
eel
t
hathasi
mpr
ov
edcr
eeppr
oper
t
i
esatel
ev
at
edt
emper
at
ur
es,
whi
chone
oft
hef
ol
l
owi
ngel
ement
shel
psi
nt
hi
si
mpr
ov
ement
?
a. Tungst
en
b. Manganese
c. Mol
y
bdenum
d. Car
bon
24. Wel
di
ngast
eel
pl
at
ewi
t
haCEof0.
45woul
dr
equi
r
epr
eheat
i
ngt
o:
a. Pr
ev
entt
hef
or
mat
i
onofsul
phi
des
b. Pr
ev
enthar
deni
ngi
nt
heHAZ
c. Pr
ev
entt
hef
or
mat
i
onofcar
bi
des
d. Toi
mpr
ov
emechani
cal
pr
oper
t
i
esi
nt
hewel
d
25. Whi
choft
hef
ol
l
owi
ngpr
ocessesusest
he'
key
hol
i
ng'
sy
st
em off
usi
on?
a. Fr
i
ct
i
onwel
di
ng
b. Di
f
f
usi
onbondi
ng
c. El
ect
r
onbeam wel
di
ng
d. Aut
ogenousTI
Gwel
di
ng
26. I
nf
r
i
ct
i
onwel
di
ngt
hemet
al
att
hei
nt
er
f
acei
si
nt
he:
a. Li
qui
dst
at
e
b. Sol
i
dst
at
e
c. Pl
ast
i
cst
at
e
d. El
ast
i
cst
at
e
27. Wel
di
ngpr
ocedur
esmayr
equi
r
ewel
dst
obedeposi
t
edatacont
r
ol
l
edr
at
eofheat
8
i
nput
.Hi
ghheati
nput
swoul
d:
a. Hav
epoorpr
of
i
l
e
b. Hav
el
ar
gergr
ai
nsi
ze
c. Hav
ehi
ghhar
dnessi
nt
heHAZ
d. Hav
el
owel
ongat
i
onpr
oper
t
i
es
28. I
nat
ensi
l
et
estabr
i
t
t
l
emat
er
i
al
woul
dbei
ndi
cat
edi
ft
hef
r
act
ur
esur
f
ace:
a. Showsar
educt
i
oni
nsi
ze
b. I
sf
l
atandf
eat
ur
el
ess
c. Br
eaksi
nt
hepar
entmat
er
i
al
d. Br
eaksat45t
ot
hel
oad
29. Whatdest
r
uct
i
v
et
estwoul
dber
equi
r
edt
oascer
t
ai
nt
hel
i
kel
i
hoodofcr
acki
ngi
nt
he
heataf
f
ect
edzoneofawel
d?
a. Ni
ckbr
eak
b. Si
debendt
est
c. Char
pyi
mpactt
est
d. Macr
ot
est
30. I
nsubmer
gedar
cwel
di
ngexcessi
v
ear
cv
ol
t
agemaycause:
a. Excessi
v
epenet
r
at
i
on
b. Changei
nwel
dmet
al
composi
t
i
on
c. Nar
r
owwel
dwi
dt
h
d. Excessi
v
ebeadpr
of
i
l
e
MULTI
CHOI
CEPAPERTHREE
9
1.
TheBr
i
t
i
shcodef
orv
i
sual
i
nspect
i
onr
equi
r
ement
si
s:
a. BS4872
b. BS499
c. BS4870
d. Noneoft
heabov
e
2.
Acodeofpr
act
i
cef
orv
i
sual
i
nspect
i
onshoul
di
ncl
udet
hef
ol
l
owi
ng:
a. Bef
or
e,
dur
i
ngandaf
t
erwel
di
ngact
i
v
i
t
i
es
b. Bef
or
ewel
di
ngact
i
v
i
t
i
esonl
y
c. Af
t
erwel
di
ngact
i
v
i
t
i
esonl
y
d. Noneoft
heabov
e
3.
I
ncompl
et
er
ootpenet
r
at
i
oni
nabut
tj
oi
ntcoul
dbecausedby
:
a. Excessi
v
er
ootf
acewi
dt
h
b. Excessi
v
er
ootgapsi
ze
c. Lowcur
r
entset
t
i
ng
d. Bot
hAandC
4.
I
ncompl
et
er
ootf
usi
onwoul
dcer
t
ai
nl
ybecausedby
:
a. Li
nearmi
sal
i
gnment
b. I
ncor
r
ectt
i
l
tangl
e
c. Di
f
f
er
i
ngr
ootf
acewi
dt
hs
d. Al
l
oft
heabov
e
5.
Whenv
i
sual
l
yi
nspect
i
ngacompl
et
edsi
ngl
ev
eebut
twel
dcap,
y
ouwoul
dcer
t
ai
nl
y
assess:
a. Caphei
ght
b. Toebl
end
c. Wel
dwi
dt
h
d. Al
l
t
heabov
e
6.
Younot
i
ceav
er
y'
v
eed'
r
i
ppl
eshape.Thi
si
smostl
i
kel
ycausedby
:
a. Poorconsumabl
echoi
ce
b. Wel
di
ngposi
t
i
on
c. Excessi
v
et
r
av
el
speed
d. Al
l
t
heabov
e
7.
Toebl
endi
ngi
si
mpor
t
antasi
tmayaf
f
ect
:
a. Cor
r
osi
on
b. Fat
i
guel
i
f
e
c. Ov
er
l
apt
y
pedef
ect
s
d. Al
l
t
heabov
e
8.
Sl
agi
ncl
usi
onswoul
doccurwi
t
h:
a. Manual
met
al
ar
c
b. Met
al
i
ner
tgas
c. Submer
gedar
cwel
di
ng
d. Bot
hAandC
10
9.
Under
cuti
spr
i
nci
pal
l
ycausedby
:
a. Excessi
v
eamps
b. Excessi
v
ev
ol
t
s
c. Excessi
v
et
r
av
el
speed
d. Al
l
t
heabov
e
10. Under
cuti
snor
mal
l
yassessedby
:
a. I
t
sdept
h
b. I
t
sl
engt
h
c. I
t
'
sbl
endi
ng
d. Al
l
t
heabov
e
11. Awel
di
ngpr
ocedur
ei
susef
ul
t
o:
a. Gi
v
ei
nf
or
mat
i
ont
ot
hewel
der
b. Gi
v
ei
nf
or
mat
i
ont
ot
hei
nspect
or
c. Gi
v
econf
i
dencet
oapr
oduct
d. Al
l
t
heabov
e
12. Anessent
i
al
v
ar
i
abl
emay
:
a. Changet
hepr
oper
t
i
esofawel
d
b. I
nf
l
uencet
hev
i
sual
accept
abi
l
i
t
y
c. Requi
r
er
eappr
ov
al
ofawel
dpr
ocedur
e
d. Al
l
t
heabov
e
13. Amagni
f
y
i
nggl
assmaybeuseddur
i
ngv
i
sual
i
nspect
i
on,
butBS5289st
at
est
hat
i
t
smagni
f
i
cat
i
onshoul
dbe:
a. Upt
o5
b. 2t
o2.
5
c. 5t
o10
d. Noneoft
heabov
e
14. Whenv
i
sual
l
yi
nspect
i
ngaf
i
l
l
etwel
di
twoul
dnor
mal
l
ybesi
zedby
:
a. Thel
egl
engt
hs
b. Theact
ual
t
hr
oatt
hi
ckness
c. Thedesi
gnt
hr
oatt
hi
ckness
d. Bot
hAandC
15. Apl
anardef
ecti
s:
a. I
ncompl
et
ef
usi
ondef
ect
s
b. Sl
agi
ncl
usi
on
c. I
ncompl
et
epenet
r
at
i
on
d. Bot
hAandC
16. Penet
r
anti
nspect
i
onandmagnet
i
cpar
t
i
cl
ei
nspect
i
onar
emai
nl
yused:
a. Toai
dv
i
sual
i
nspect
i
on
b. Becauset
heappl
i
cat
i
onsay
sso
c. Toconf
i
r
mv
i
sual
uncer
t
ai
nt
i
es
d. Al
l
t
heabov
e
17. Def
ect
sout
si
det
hel
i
mi
t
sspeci
f
i
edi
nast
andar
dshoul
dal
way
sbe:
11
a.
b.
c.
d.
Repai
r
ed
Repor
t
edt
o'
aseni
orper
son'
Assessedal
ongwi
t
hot
herdef
ect
s
Al
l
t
heabov
e
18. MI
Gwel
di
ngt
endst
obesuscept
i
bl
et
ol
ackoff
usi
onpr
obl
ems.Thi
si
sbecauseof
:
a. Poormai
nt
enanceofequi
pment
b. I
ncor
r
ectset
t
i
ngs
c. Poori
nt
er
r
uncl
eani
ng
d. Al
l
t
heabov
e
19. MMAel
ect
r
odescanbegr
oupedi
nt
ot
hr
eemai
nt
y
pes.Thesear
e:
a. Basi
c,
cel
l
ul
osi
candr
ut
i
l
e
b. Neut
r
al
,
cel
l
ul
osi
candr
ut
i
l
e
c. Basi
c,
cel
l
ul
osi
candneut
r
al
d. Noneoft
heabov
e
20. Themai
ncauseofpor
osi
t
yi
nwel
dedj
oi
nt
si
s:
a. Pooraccess
b. Lossofgasshi
el
d
c. '
Di
r
t
y
'
mat
er
i
al
s
d. Al
l
t
heabov
e
21. Cr
acksi
nwel
dsmaybeduet
o:
a. Sol
i
di
f
i
cat
i
onpr
obl
ems
b. Hy
dr
ogenpr
obl
ems
c. Excessi
v
est
r
esses
d. Al
l
t
heabov
e
22. Aweav
et
echni
quemaygi
v
er
i
set
o:
a. Bet
t
erpr
of
i
l
es
b. I
mpr
ov
edt
oebl
endi
ng
c. I
mpr
ov
edr
i
ppl
eshape
d. Al
l
t
heabov
e
23. Wi
t
hr
ef
er
encet
oar
ootpenet
r
at
i
onbeady
ouwoul
dcer
t
ai
nl
yassess:
a. Rootf
usi
onandpenet
r
at
i
on
b. Rootconcav
i
t
y
c. Bur
nt
hr
ough
d. Al
l
t
heabov
e
24. I
naf
at
i
guef
ai
l
ur
et
heappear
anceoft
hef
r
act
ur
esur
f
acei
schar
act
er
i
st
i
c.I
twoul
d
be:
a. Roughandt
or
n
b. '
Chev
r
on'
l
i
ke
c. Smoot
h
d. Noneoft
heabov
e
25. St
r
ayar
ci
ngmayber
egar
dedasaser
i
ousdef
ectbecause:
a. I
tmayr
educet
het
hi
cknessdi
mensi
onofacomponent
12
b.
c.
d.
I
tmaycausel
oquat
i
oncr
acks
I
tmaycausehar
dzones
Al
l
t
heabov
e
26. Ov
er
l
api
nwel
dscoul
dbei
nf
l
uencedby
:
a. Poorwel
di
ngt
echni
que
b. Wel
di
ngpr
ocess
c. Wel
di
ngposi
t
i
on
d. Al
l
t
heabov
e
27. Fl
amecutpr
epar
at
i
onsmay
,
dur
i
ngwel
di
ng,
i
ncr
easet
hel
i
kel
i
hoodof
:
a. Cr
acki
ng
b. Mi
sal
i
gnmentpr
obl
ems
c. I
ncl
usi
ons
d. Al
l
t
heabov
e
28. Macr
oscopi
cexami
nat
i
onr
equi
r
esanyspeci
ment
obei
nspect
ed:
a. Once,
af
t
eret
chi
ng
b. Twi
ce,
bef
or
eandaf
t
eret
chi
ng
c. Usi
ngami
cr
oscope
d. Noneoft
heabov
e
29. Whi
choft
hef
ol
l
owi
ngmaybecl
assedasamor
eser
i
ousdef
ect
:
a. Sl
agi
ncl
usi
ons
b. Fusi
ondef
ect
s(
i
nt
er
r
un)
c. Fusi
ondef
ect
s(
sur
f
ace)
d. Por
osi
t
y
30. Acodeofpr
act
i
cei
s:
a. Ast
andar
df
orwor
kmanshi
ponl
y
b. Asetofr
ul
esf
ormanuf
act
ur
i
ngaspeci
f
i
cpr
oduct
c. Lev
el
sofaccept
abi
l
i
t
yofawel
dment
d. Noneoft
heabov
e
MULTI
CHOI
CEPAPERFOUR
1.
Mov
ementoft
hear
ci
nMMAwel
di
ngbymagnet
i
cf
or
cesi
scal
l
ed:
a. Ar
cdev
i
at
i
on
b. Ar
cmi
sal
i
gnment
c. Ar
cbl
ow
13
d.
Ar
cey
e
2.
Amet
al
l
ur
gi
cal
pr
obl
em mostassoci
at
edwi
t
hsubmer
gedar
cwel
di
ngi
s:
a. Hy
dr
ogencr
acki
ngi
nt
heHAZ
b. Sol
i
di
f
i
cat
i
oncr
acki
ngi
nt
hewel
dmet
al
c. Hy
dr
ogencr
acki
ngi
nt
hewel
dmet
al
d. Lamel
l
art
ear
i
ngi
nt
hewel
dmet
al
3.
Oxypr
essur
eandnozzl
esi
zei
nf
l
amecut
t
i
ngwoul
di
nf
l
uence:
a. Thet
emper
at
ur
er
equi
r
edf
orcuti
ni
t
i
at
i
on
b. Theabi
l
i
t
yt
ocutst
ai
nl
essst
eel
s
c. Thedept
hoft
hecutobt
ai
nabl
e
d. Noneoft
heabov
e
4.
Themai
nusageofar
ccut
t
i
ng/
gougi
ngpr
ocessesi
s:
a. Thecut
t
i
ngofsi
ngl
ebev
el
pr
epar
at
i
ons
b. Ther
emov
al
ofdeposi
t
edwel
ds
c. Thecut
t
i
ngofsi
ngl
eUt
y
pepr
epar
at
i
ons
d. Thecut
t
i
ng/
gougi
ngofnonf
er
r
ousmat
er
i
al
sonl
y
5.
Whi
choft
hef
ol
l
owi
ngpr
ocessesj
oi
nsmet
al
spl
ast
i
cal
l
y
?
a. Fr
i
ct
i
onwel
di
ng
b. Resi
st
ancewel
di
ng
c. Pl
asmawel
di
ng
d. Al
l
t
heabov
e
6.
Whi
chel
ect
r
odecl
assi
f
i
cat
i
onwoul
dber
el
ev
antt
oAWSA5.
181?
a. E6013
b. E5133
c. E7018-G
d. Fl
eet
wel
d5
7.
Whi
choft
hef
ol
l
owi
ngcoat
i
ngsi
sassoci
at
edwi
t
hst
ov
ewel
di
ng?
a. Rut
i
l
e
b. Cel
l
ul
osi
c
c. Basi
c
d. Oxi
di
si
ng
8.
Acommongasmi
xt
ur
eusedi
nMI
Gwel
di
ngni
ckel
al
l
oy
s,
t
ocombi
negoodl
ev
el
sof
penet
r
at
i
onwi
t
hgoodar
cst
abi
l
i
t
ywoul
dbe:
a. 100%CO2
b. 100%ar
gon
c. 80%ar
gonand20%CO2
d. 98%ar
gonand2%oxy
gen
9.
Whi
cht
y
peofSAW f
l
uxi
smor
er
esi
st
antt
omoi
st
ur
eabsor
pt
i
on?
a. Fused
b. Aggl
omer
at
ed
c. Basi
c
d. Al
l
t
heabov
ehav
et
hesamer
esi
st
ance
14
10. Thef
l
amet
emper
at
ur
eofoxy
/
acet
y
l
enemi
xt
ur
egasi
sgi
v
enas:
a. 3200
C
b. 2300
C
c. 5000
C
d. Noneoft
heabov
e
11. Al
ar
gegr
ai
nst
r
uct
ur
ei
nst
eel
si
ssai
dt
opr
oduce:
a. Lowduct
i
l
i
t
yv
al
ues
b. Lowf
r
act
ur
et
oughnessv
al
ues
c. Hi
ghf
r
act
ur
ev
al
uev
al
ues
d. Hi
ght
ensi
l
est
r
engt
h
12. Thel
i
kel
i
hoodofbr
i
t
t
l
ef
r
act
ur
ei
nst
eel
swi
l
l
i
ncr
easewi
t
h:
a. Al
ar
gegr
ai
nf
or
mat
i
on
b. Ar
educt
i
onofi
nser
v
i
cet
emper
at
ur
et
osubzer
ot
emper
at
ur
es
c. Fer
r
i
t
i
cr
at
hert
hanaust
eni
t
i
cst
eel
s
d. Al
l
t
heabov
e
13. Repai
rwel
di
ngi
sof
t
enmor
edi
f
f
i
cul
tt
hanpr
oduct
i
onwel
di
ngduet
o:
a. Themat
er
i
al
bei
ngi
ngr
ai
nedwi
t
hi
nser
v
i
cecont
ami
nant
s
b. Rest
r
i
ct
edaccesswi
t
hi
nt
her
epai
rar
ea
c. Thepossi
bl
eposi
t
i
onoft
hewel
dr
epai
r
d. Al
l
t
heabov
e
14. Hy
dr
ogencr
acki
ngi
nt
hewel
dmet
al
i
sl
i
kel
ywhenwel
di
ng:
a. Car
bonmanganesest
eel
s
b. St
ai
nl
essst
eel
s
c. Mi
cr
oal
l
oy
edst
eel
s(
HSLA)
d. Lowcar
bonst
eel
s
15. EN288st
andar
dwoul
dr
ef
ert
owhi
choft
hef
ol
l
owi
ng:
a. Wel
derappr
ov
al
t
est
i
ng
b. Wel
di
ngequi
pment
c. Wel
di
ngpr
ocedur
eappr
ov
al
d. Consumabl
esf
orwel
di
ng
16. Por
osi
t
yi
scausedby
:
a. Ent
r
appedsl
agi
nt
hesol
i
di
f
y
i
ngwel
d
b. Ent
r
appedgasi
nt
hesol
i
di
f
y
i
ngwel
d
c. Ent
r
appedmet
al
l
i
ci
ncl
usi
onsi
nt
hesol
i
di
f
y
i
ngwel
d
d. Noneoft
heabov
e
17. I
nabendt
estt
hef
aceoft
hespeci
meni
si
nt
ensi
onandt
her
ooti
si
ncompr
essi
on.
Whatt
y
peoft
esti
sbei
ngcar
r
i
edout
?
a. Ar
ootbendt
est
b. Asi
debendt
est
c. Af
acebendt
est
d. Noneoft
heabov
e
18. Ul
t
r
asoni
ct
est
i
ngi
smor
eadv
ant
ageousi
ndet
ect
i
ngwhi
choft
hef
ol
l
owi
ngwel
d
i
mper
f
ect
i
ons,
ov
erot
herNDTmet
hods?
a. Lackofsi
dewal
l
f
usi
on
15
b.
c.
d.
Sur
f
aceunder
cut
I
ncompl
et
el
yf
i
l
l
edgr
oov
e
Ov
er
l
ap
19. Temper
i
ngi
sof
t
encar
r
i
edoutt
or
egai
nt
oughnessaf
t
erwhi
choft
hef
ol
l
owi
ng
pr
ocesses?
a. Anneal
i
ng
b. Nor
mal
i
si
ng
c. Har
deni
ng
d. St
r
essr
el
i
ev
i
ng
20. Thepr
esenceofi
r
onsul
phi
dei
nt
hewel
dmet
al
i
smostl
i
kel
yt
opr
oducewhi
chof
t
hef
ol
l
owi
nguponcont
r
act
i
onoft
hewel
d?
a. Sol
i
di
f
i
cat
i
oncr
acki
ng
b. Hy
dr
ogencr
acki
ng
c. I
nt
er
gr
anul
arcor
r
osi
on
d. St
r
esscor
r
osi
oncr
acki
ng
21. Aust
eni
t
i
cst
ai
nl
essst
eel
el
ect
r
odesar
egener
al
l
ysmal
l
eri
nl
engt
ht
hanmi
l
dst
eel
el
ect
r
odesbecause:
a. Hi
ghamper
agei
sused
b. Shel
fl
i
f
ewi
l
l
bedecr
eased
c. Thei
rel
ect
r
i
cal
conduct
i
v
i
t
yi
sl
esst
hant
hatofst
eel
d. Theyar
emor
eexpensi
v
e
22. Thev
ol
t
agenecessar
yt
omai
nt
ai
nanar
cdur
i
ngmet
al
ar
cwel
di
ngi
st
er
med:
a. Mai
nssuppl
yv
ol
t
age
b. Ar
ccur
r
ent
c. Ar
cv
ol
t
age
d. Openci
r
cui
tv
ol
t
age
23. WhenMMAwel
di
ngl
owcar
bonst
eel
whi
chel
ect
r
odewi
l
l
gi
v
et
hegr
eat
est
deposi
t
i
onr
at
e?
a. Hy
dr
ogencont
r
ol
l
ed
b. Cel
l
ul
osi
c
c. Rut
i
l
e
d. I
r
onpowder
24. I
nher
entr
ect
i
f
i
cat
i
onoft
heel
ect
r
i
cal
out
puti
spr
oducedi
nt
hear
cwhenTI
G
wel
di
ngusi
ng:
a. ACwi
t
hasuppr
essor
b. ACwi
t
houtasuppr
essor
c. DCwi
t
hr
ev
er
sepol
ar
i
t
y
d. DCwi
t
hst
r
ai
ghtpol
ar
i
t
y
25. Gammar
ay
sandXr
ay
sar
epar
tofaf
ami
l
yofwav
escal
l
ed:
a. Acoust
i
cwav
es
b. Li
ghtwav
es
16
c.
d.
El
ect
r
omagnet
i
cwav
es
Tr
ansv
er
sewav
es
26. Ameasur
eoft
heaccur
acyofar
adi
ogr
aphasanNDTt
ool
i
sgi
v
enbyi
t
s:
a. I
nt
ensi
t
y
b. Densi
t
y
c. Sensi
t
i
v
i
t
y
d. Exposur
e
27. Asur
f
acebr
eaki
ngcr
ackwi
l
l
bedet
ect
eddur
i
ngamagnet
i
cpar
t
i
cl
ei
nspect
i
oni
fi
t
i
s:
a. Atr
i
ghtangl
est
ot
hel
i
nesoff
l
ux
b. Par
al
l
el
t
ot
hel
i
nesoff
l
ux
c. At25t
ot
hel
i
nesoff
l
ux
d. Al
l
t
heabov
e
28. Theadv
ant
ageoful
t
r
asoni
cnondest
r
uct
i
v
et
est
i
ngf
ort
heexami
nat
i
onof
wel
dment
si
s:
a. I
tcanbeusedt
ol
ocat
ef
l
aws
b. I
tcanbeusedt
osi
zef
l
aws
c. I
thasahi
ghsensi
t
i
v
i
t
yt
opl
anarf
l
aws
d. Al
l
t
heabov
e
29. Undernor
mal
cont
r
actcondi
t
i
onswel
dpr
ocedur
eappr
ov
al
t
est
sf
orpi
pewor
kar
e:
a. Mandat
or
y
b. Dependantonsi
t
eandweat
hercondi
t
i
ons
c. Dependantupont
hecont
r
act
or
'
sconf
i
dencei
nhi
spr
ocedur
es
d. Onl
yr
equi
r
edwhenMMAwel
di
ngi
sused
30. Hy
dr
ogencont
r
ol
l
edel
ect
r
odeswer
edev
el
opedpr
i
nci
pal
l
yf
or
:
a. Thepr
ev
ent
i
onofpor
osi
t
y
b. Thepr
ev
ent
i
onofcr
acki
ng
c. Theenhancementofar
cv
ol
t
age
d. Thei
reaseofar
cst
ar
t
i
ng
MULTI
CHOI
CEPAPERFI
VE
1.
Gener
al
l
yt
hemostsui
t
abl
emet
hodofdet
ect
i
ngl
ackofsi
dewal
l
f
usi
onwoul
dbe:
a. Ul
t
r
asoni
cs.
b. MPI
.
c. Radi
ogr
aphy
.
d. Penet
r
anti
nspect
i
on.
2.
Hotshor
t
nessi
sat
er
m usedt
oi
ndi
cat
e:
a. Lamel
l
art
ear
i
ng.
b. Sol
i
di
f
i
cat
i
oncr
acki
ng.
c. Hy
dr
ogencr
acki
ng.
d. Noneoft
heabov
e.
3.
Cobal
tasani
sot
opewoul
dgener
al
l
ybeusedon:
17
a.
b.
c.
d.
Thi
nmat
er
i
al
.
Teej
oi
nt
s.
Pl
at
et
hi
cknessesgr
eat
ert
han25mm.
Al
l
t
heabov
e.
4.
I
nwel
di
ngpr
ocedur
et
er
ms,
achangei
nessent
i
al
v
ar
i
abl
emeans:
a. Requal
i
f
i
cat
i
onoft
hewel
dpr
ocedur
e.
b. Possi
bl
echangesi
nt
hewel
d'
smi
cr
ost
r
uct
ur
e.
c. Possi
bl
echangesi
nt
hemechani
cal
pr
oper
t
i
es.
d. Al
l
t
heabov
e.
5.
Wel
dsy
mbol
spl
acedonadot
t
edl
i
nei
naccor
dancewi
t
hI
SOr
equi
r
ement
smeans:
a. Wel
don'
ar
r
ow'
si
de.
b. Wel
don'
ot
her
'
si
de.
c. Wel
donsi
t
e.
d. Ful
l
penet
r
at
i
onr
equi
r
ed.
6.
Awel
di
ngi
nspect
or
'
smai
nat
t
r
i
but
esi
ncl
ude:
a. Knowl
edgeandexper
i
ence.
b. Li
t
er
acy
.
c. Honest
yandi
nt
egr
i
t
y
.
d. Al
l
t
heabov
e.
7.
Techni
cal
l
y
,
acodeofpr
act
i
cei
s:
a. Ast
andar
d.
b. A'
setofr
ul
es'
f
ort
hemanuf
act
ur
eofapr
oduct
.
c. Rel
at
edt
owel
derandwel
dpr
ocedur
eappr
ov
al
.
d. Al
l
t
heabov
e.
8.
Thecor
r
ectt
er
mf
or'
caphei
ght
'
i
s:
a. Rei
nf
or
cement
.
b. Cappr
of
i
l
ehei
ght
.
c. Excesswel
dmet
al
.
d. Al
l
t
heabov
e.
At
ensi
l
et
estwi
l
l
assess:
a. I
mpactv
al
ues.
b. St
r
ess.
c. St
r
ai
n.
d. Bot
hbandc.
9.
10. Thei
mpor
t
antpoi
ntofhi
ght
emper
at
ur
est
eel
si
st
hat
:
a. Theycanwi
t
hst
andcr
eepf
ai
l
ur
e.
b. Theymaysuf
f
err
eheatcr
acki
ngpr
obl
ems.
c. Theymaysuf
f
erl
ossoft
oughness.
d. Al
l
t
heabov
e.
11. Anaust
eni
t
i
cst
ai
nl
essst
eel
maysuf
f
er
:
a. Wel
ddecay
.
b. Sensi
t
i
sat
i
on.
c. Sol
i
di
f
i
cat
i
oncr
acki
ng.
d. Al
l
t
heabov
e.
18
12. Car
bonequi
v
al
entv
al
uesar
eusef
ul
t
odet
er
mi
ne:
a. Wel
dabi
l
i
t
yaspect
s.
b. Cr
acksensi
t
i
v
i
t
yaspect
s.
c. Ty
pi
cal
mechani
cal
pr
oper
t
i
es.
d. Al
l
t
heabov
e.
13. Abasi
cel
ect
r
odewoul
dnor
mal
l
y
:
a. Hav
esuper
i
ormechani
cal
pr
oper
t
i
es.
b. Requi
r
ebaki
ngbef
or
euse.
c. Notbeusedonl
owcar
bonst
eel
s.
d. Bot
haandb.
14. Whenr
ef
er
r
i
ngt
oTI
Gwel
di
ng,
t
heshi
el
di
nggascoul
dbe:
a. Ar
gonandhy
dr
ogen.
b. Ar
gonandhel
i
um.
c. Ar
gonandni
t
r
ogen.
d. Al
l
t
heabov
e.
15. Whenr
ef
er
r
i
ngt
oMI
Gwel
di
ng,
t
heshi
el
di
nggaswoul
dbe:
a. Ar
gon.
b. Ar
gon+1%oxy
gen.
c. Ar
gon+20%car
bondi
oxi
de.
d. Noneoft
heabov
e.
16. Submer
gedar
cut
i
l
i
ses:
a. Deeppenet
r
at
i
onchar
act
er
i
st
i
c.
b. Hi
ghdeposi
t
i
onr
at
esonDC+.
c. Fl
at(
PA)wel
di
ngonl
y
.
d. Noneoft
heabov
e.
17. Ul
t
r
asoni
cswoul
dbepr
ef
er
r
edov
err
adi
ogr
aphyduet
o:
a. Abi
l
i
t
yt
of
i
ndmostdef
ect
s.
b. Lowerski
l
l
r
equi
r
ement
.
c. Abi
l
i
t
yt
odet
ectl
ami
nat
i
ons.
d. Bot
haandc.
18. Themostser
i
ousdef
ectt
y
pesar
e:
a. Pl
anar
.
b. Cr
acks.
c. Lackoff
usi
on.
d. Al
l
t
heabov
e.
19. MMAwel
di
ngofl
owal
l
oyst
eel
si
smor
el
i
kel
yt
obeper
f
or
medwi
t
h:
a. Rut
i
l
eel
ect
r
odes.
b. Cel
l
ul
osi
cel
ect
r
odes.
c. I
r
onpowderel
ect
r
odes.
d. Basi
chy
dr
ogencont
r
ol
l
edel
ect
r
odes.
20. Whi
choft
hef
ol
l
owi
ngdef
ect
si
smor
ecommont
owel
dsdeposi
t
edbyCO2wel
di
ng
19
t
hanwel
dsdeposi
t
edbyMMA?
a. Sl
agi
ncl
usi
ons.
b. Excesspenet
r
at
i
on.
c. Lackofsi
dewal
l
f
usi
on.
d. Tungst
eni
ncl
usi
ons.
21. Whi
chdef
ectwoul
dy
ouexpectt
ogeti
nTI
Gwel
dsi
nnondeoxi
di
sedst
eel
?
a. Under
cut
.
b. Por
osi
t
y
.
c. Tungst
eni
ncl
usi
ons.
d. Li
nearmi
sal
i
gnment
.
22. Whi
choft
hef
ol
l
owi
ngcanar
i
sef
r
om copperi
ncl
usi
onsi
naf
er
r
i
t
i
cst
eel
wel
d?
a. Wel
dmet
al
cr
acks.
b. HAZcr
acks.
c. Lamel
l
art
ear
i
ng.
d. Por
osi
t
y
.
23. Whi
choft
hef
ol
l
owi
ngi
sl
i
kel
yt
ogi
v
et
hehi
ghesti
mpactst
r
engt
hi
nf
er
r
i
t
i
cwel
d
met
al
?
a. Cel
l
ul
osi
cel
ect
r
odes.
b. Submer
gedar
cwi
t
haci
df
l
ux.
c. Spr
ayt
r
ansf
erCO2wel
di
ng.
d. Basi
ccoat
edMMAel
ect
r
odes.
24. Yoususpectt
hatf
er
r
i
t
i
cst
eel
pl
at
escont
ai
ncr
acksi
nt
hepr
epar
ededges.What
NDTmet
hodwoul
dy
ouuset
ocheckt
hi
s?
a. Radi
ogr
aphy
.
b. Magnet
i
cpar
t
i
cl
ei
nspect
i
on.
c. Penet
r
anti
nspect
i
on.
d. Ul
t
r
asoni
cf
l
awdet
ect
i
on.
25. Whi
choft
hef
ol
l
owi
ngdef
ect
swoul
dy
ounotexpectt
of
i
ndbyv
i
sual
i
nspect
i
onof
wel
ds?
a. Li
nearsl
agi
ncl
usi
ons.
b. Under
cut
.
c. Ov
er
l
ap.
d. Li
nearmi
sal
i
gnment
.
26. St
r
essr
el
i
ev
i
ngi
snothel
pf
ul
i
nwhi
choft
hef
ol
l
owi
ngcases?
a. I
mpr
ov
i
ngr
esi
st
ancet
ost
r
esscor
r
osi
oncr
acki
ng.
b. I
mpr
ov
i
ngdi
mensi
onal
st
abi
l
i
t
yaf
t
ermachi
ni
ng.
c. Lower
i
ngt
hepeakr
esi
dual
st
r
ess.
d. Sof
t
eni
ngt
hest
eel
.
27. Whati
st
hemaxi
mum har
dnessusual
l
yr
ecommendedf
ort
heheat
af
f
ect
edzoneof
amedi
um st
r
engt
hf
er
r
i
t
i
cst
eel
wel
d?
a. 100DPHv
.
b. 350DPHv
.
c. 500DPHv
.
d. 750DPHv
.
20
28. Whatef
f
ectdoesmi
dt
hi
cknessl
ami
nat
i
onsi
nst
eel
pl
at
enor
mal
l
yhav
ewhent
hey
ar
el
ocat
edwi
t
hi
nawel
dheataf
f
ect
edzone?
a. Causel
amel
l
art
ear
i
ng.
b. Fuset
oget
hert
of
or
m abond.
c. Af
f
ectt
hewel
dmet
al
composi
t
i
on.
d. Causei
nt
er
nal
t
ear
i
ngonami
cr
oscal
e.
29. Theper
manentbacki
ngmat
er
i
al
f
orMMAwel
di
ngofl
owcar
bonst
eel
shoul
dbe
madef
r
om:
a. Copper
.
b. Lowcar
bonst
eel
.
c. QTst
eel
.
d. Casti
r
on.
30. Theov
er
al
l
l
engt
hofapi
pel
i
necanbeaf
f
ect
edby
:
a. Tr
ansv
er
seshr
i
nkage.
b. Longi
t
udi
nal
shr
i
nkage.
c. Angul
arshr
i
nkage.
d. Ci
r
cumf
er
ent
i
al
shr
i
nkage.
MULTI
CHOI
CEPAPERSI
X
1.
Thewel
ddi
mensi
onusedt
oi
ndi
cat
et
hemi
ni
mum st
r
engt
hofaf
i
l
l
etwel
di
s:
a. Legl
engt
h.
b. Thr
oatt
hi
ckness.
c. Wi
dt
hofbead.
d. Lengt
hofwel
del
ement
.
2.
Anel
ect
r
osl
agwel
dr
equi
r
eswhatheatt
r
eat
mentt
oi
mpr
ov
et
hegr
ai
nst
r
uct
ur
e?
a. Anneal
i
ng.
b. St
r
essr
el
i
ev
i
ng.
c. Nor
mal
i
si
ng.
d. Quenchandt
emper
i
ng.
3.
Themostcommont
y
peoff
ai
l
ur
eassoci
at
edwi
t
hshar
pf
i
l
l
et
s,
not
chesand
under
cuti
s:
a. Cr
y
st
al
l
i
sat
i
on.
b. Fat
i
gue.
c. Cor
r
osi
on.
d. Br
i
t
t
l
ef
r
act
ur
e.
21
4.
Wel
ddecayi
nst
ai
nl
essst
eel
scanbeav
oi
dedby
:
a. St
r
essr
el
i
ev
i
ng.
b. Sl
owcool
i
ngaf
t
erwel
di
ng.
c. Addi
t
i
onofmor
emanganeset
ot
hest
eel
.
d. Addi
t
i
onoft
i
t
ani
um t
ot
hest
eel
.
5.
Aneut
ect
oi
dmi
xt
ur
ei
nst
eel
i
s:
a. Ami
xt
ur
eoff
er
r
i
t
eandaust
eni
t
e.
b. Ami
xt
ur
ecompr
i
si
ngasubst
i
t
ut
i
nal
sol
i
dsol
ut
i
on.
c. Cal
l
edpear
l
i
t
e.
d. Cal
l
edl
edebur
i
t
e.
6.
Lowal
l
oyst
eel
shav
i
ngahi
ghcar
bonequi
v
al
entbef
or
ewel
di
ngwi
l
l
r
equi
r
e:
a. Ar
educt
i
oni
ncar
boncont
ent
.
b. Hi
ghpr
eheatt
emper
at
ur
es.
c. Lowpr
eheatt
emper
at
ur
es.
d. Nopr
eheat
i
ng.
7.
Theel
ect
r
odesf
orwel
di
ngl
owal
l
oyst
eel
sshoul
dbe:
a. Usedwi
t
hal
owcur
r
entv
al
ue.
b. Onesi
zel
ar
gert
hanf
orgener
al
pur
poseel
ect
r
odes.
c. Usedf
orwel
di
ngi
nt
hef
l
atposi
t
i
ononl
y
.
d. Heat
edi
nadr
y
i
ngov
enbef
or
euse.
8.
Thepur
poseofpr
eheat
i
ngl
owal
l
oyst
eel
pi
pesbef
or
eel
ect
r
i
car
cwel
di
ngi
st
o:
a. Ref
i
negr
ai
nst
r
uct
ur
e.
b. Rel
i
ev
ei
nt
er
nal
st
r
ess.
c. Ret
ar
dr
api
dcool
i
ng.
d. Regul
at
eexcessi
v
eexpansi
on.
Wel
derqual
i
f
i
cat
i
ont
est
sar
edesi
gnedt
o:
a. Testt
hecor
r
ect
nessoft
hewel
di
ngpr
ocedur
e.
b. Testt
hewel
der
'
sski
l
l
.
c. Pr
ov
et
hewel
dabi
l
i
t
yoft
hepar
entmat
er
i
al
.
d. Al
l
t
heabov
e.
9.
10. I
nposi
t
i
onal
MMAwel
di
ngonpi
pewor
k,
wel
der
sar
ehav
i
ngdi
f
f
i
cul
t
yi
nobt
ai
ni
ng
goodcappi
ngpr
of
i
l
eswhenwel
di
ngi
nt
heov
er
headposi
t
i
on.Woul
dy
ou:
a. Adv
i
set
hem t
oi
ncr
easet
hecur
r
ent
.
b. Adv
i
set
hem t
oi
ncr
easet
hev
ol
t
age.
c. Askf
oranewwel
di
ngt
eam.
d. Suggestt
heuseofasmal
l
erdi
amet
erel
ect
r
ode.
11. Youhav
eamacr
osect
i
onofa'
T'
but
tj
oi
ntt
hatshowsast
epl
i
kedef
ectl
y
i
ng
out
si
det
hev
i
si
bl
eHAZ.Whatwoul
dt
hi
sdef
ectpossi
bl
ysi
gni
f
y
?
a. HAZcr
acki
ng.
b. Toecr
acki
ng.
c. Lami
nat
i
on.
d. Lamel
l
art
ear
i
ng.
12. Whi
chel
ect
r
odedeposi
t
swel
dmet
al
wi
t
ht
hegr
eat
estduct
i
l
i
t
yandr
esi
st
ancet
o
22
cr
acki
ng?
a. Rut
i
l
e.
b. Cel
l
ul
osi
c.
c. Basi
c.
d. Oxi
di
si
ng.
13. Whi
choneoft
hef
ol
l
owi
ngi
snothel
pf
ul
i
nmi
ni
mi
si
ngangul
ardi
st
or
t
i
ondur
i
ng
wel
di
ng?
a. Useofdoubl
e'
V'
wel
dpr
epusi
ngbal
ancedwel
di
ngt
echni
que.
b. Pr
eset
t
i
ngofwor
kpi
ece.
c. Appl
y
i
ngpostwel
dheatsoak.
d. Changi
ngf
r
om asi
ngl
e'
V'
pr
epf
ort
hi
ckmat
er
i
al
.
14. Ar
gonpur
gi
ngont
her
ootsi
dei
snecessar
yi
nt
heTI
Gwel
di
ngofst
ai
nl
essst
eel
t
o:
a. Obt
ai
nf
ul
l
penet
r
at
i
on.
b. Obt
ai
nf
ul
l
f
usi
on.
c. Av
oi
dpor
osi
t
yi
nt
her
oot
.
d. Obt
ai
nasat
i
sf
act
or
ywel
dsur
f
acef
i
ni
sh.
15. Whi
choft
hef
ol
l
owi
ngcanar
i
sef
r
om copperi
ncl
usi
onsi
nami
l
dst
eel
wel
d?
a. Wel
dmet
al
cr
acks.
b. HAZcr
acks.
c. Lackoff
usi
on.
d. Por
osi
t
y
.
16. St
r
essr
el
i
efi
snothel
pf
ul
i
nwhi
choft
hef
ol
l
owi
ngcases?
a. I
ni
mpr
ov
i
ngr
esi
st
ancet
ost
r
esscor
r
osi
on.
b. I
ni
mpr
ov
i
ngdi
mensi
onal
st
abi
l
i
t
yaf
t
ermachi
ni
ng.
c. I
nl
ower
i
ngt
hepeakr
esi
dual
st
r
esses.
d. I
nsof
t
eni
ngt
hemet
al
.
17. St
r
ayar
cst
r
i
kesar
eundesi
r
abl
esi
ncet
hey
:
a. Leav
eapoorsur
f
acef
i
ni
sh.
b. Causewel
dmet
al
cr
acki
ng.
c. Reducecor
r
osi
onr
esi
st
ance.
d. Causel
ocal
har
deni
ngandcr
acki
ngi
nt
hepar
entmat
er
i
al
.
18. Col
dcr
acki
ngi
smostl
i
kel
yt
ooccuri
nawel
dmenti
f
:
a. Ther
at
eofcool
i
ngi
st
oof
ast
.
b. Ther
at
eofcool
i
ngi
st
oosl
ow.
c. I
tl
acksduct
i
l
i
t
yathi
ght
emper
at
ur
es.
d. I
mpur
i
t
i
esar
epr
esentati
t
sgr
ai
nboundar
i
es.
19. Chr
omi
um,
whenaddedt
ost
eel
asanal
l
oy
i
ngel
ement
,
hast
heef
f
ectofmaki
ngt
he
al
l
oymor
e:
a. Duct
i
l
e.
b. Pl
ast
i
c.
c. Har
denabl
e.
d. Mal
l
eabl
e.
20. Whendeposi
t
i
ngwel
dmet
al
,
f
usi
onwi
l
l
t
akepl
aceatt
hesi
desoft
hej
oi
ntr
esul
t
i
ng
i
nanadmi
xt
ur
ebet
weenwel
dmet
al
andpar
entmet
al
.Thi
sal
l
oy
i
ngef
f
ecti
sknown
23
as:
a.
b.
c.
d.
Di
f
f
usi
on.
Absor
pt
i
on.
Di
l
ut
i
on.
Mi
gr
at
i
on.
21. Per
cent
ageel
ongat
i
onofamet
al
under
goi
ngat
ensi
l
et
esti
sameasur
eof
:
a. El
ast
i
ci
t
y
.
b. Pl
ast
i
ci
t
y
.
c. Duct
i
l
i
t
y
.
d. Mal
l
eabi
l
i
t
y
.
22. Whenal
ongi
t
udi
nal
l
oadi
sputonal
apj
oi
nt
,
t
hest
r
esssetupi
snor
mal
l
y
:
a. Shearst
r
ess.
b. Tensi
l
est
r
ess.
c. Compr
essi
v
est
r
ess.
d. Resi
dual
st
r
ess.
23. Whenamet
al
i
ssubj
ect
edt
oaf
l
uct
uat
i
ngl
oad,
acondi
t
i
onofcy
cl
i
cst
r
essi
ngcan
besetup,
whi
chev
ent
ual
l
ycanr
esul
ti
nst
r
uct
ur
al
br
eakdownknownas:
a. Tensi
l
ef
ai
l
ur
e.
b. Fat
i
guef
ai
l
ur
e.
c. Yi
el
df
ai
l
ur
e.
d. Shearf
ai
l
ur
e.
24. Whathappenst
ot
hemechani
cal
pr
oper
t
i
esofst
eel
i
ft
hecar
boncont
enti
s
i
ncr
easedt
o0.
5%?
a. Themat
er
i
al
becomessof
t
er
.
b. Mal
l
eabi
l
i
t
yi
si
ncr
eased.
c. Thet
ensi
l
est
r
engt
hi
si
ncr
eased.
d. Duct
i
l
i
t
yi
si
ncr
eased.
25. Col
umnargr
owt
ht
akespl
acewhenamet
al
i
s:
a. Col
d.
b. Losi
ngheat
.
c. Bei
ngheat
ed.
d. Bei
ngr
ol
l
ed.
26. I
fal
owcar
bonst
eel
pi
pehast
ocar
r
yal
i
qui
d,
car
emustbet
akenwhenmaki
ngt
he
but
twel
dst
oensur
epenet
r
at
i
oni
snotexcessi
v
ebecausei
t
:
a. Reducest
hef
l
owr
at
eoft
hel
i
qui
d.
b. Mayi
ncr
easet
her
at
eofcor
r
osi
on.
c. Cancont
ami
nat
et
hel
i
qui
d.
d. Maycauseexcessi
v
epi
pewear
.
27. Whenast
eel
suf
f
er
shotshor
t
ness,
i
ti
smost
l
yduet
ot
hepr
esenceof
:
a. Sul
phur
.
b. Phosphor
ous.
24
c.
d.
Si
l
i
con.
Manganese.
28. Whenast
eel
i
sheat
edt
oabov
ei
t
suppercr
i
t
i
cal
t
emper
at
ur
e,
t
hest
r
uct
ur
e
pr
oducedi
s:
a. Mar
t
ensi
t
e.
b. Aust
eni
t
e.
c. Pear
l
i
t
e.
d. Sor
bi
t
e.
29. Thet
y
peofcr
y
st
al
nor
mal
l
yf
oundi
nasi
ngl
er
unar
cwel
di
nt
heaswel
ded
condi
t
i
oni
s:
a. Equi
axed.
b. Pol
y
cr
y
st
al
l
i
ne.
c. Dendr
i
t
i
c.
d. Col
umnar
.
30. Thef
i
r
stsubzonei
nt
heheataf
f
ect
edzoneoft
hepar
entmet
al
near
estt
hewel
d
deposi
twi
l
l
consi
stof
:
a. Lar
gecr
y
st
al
gr
ai
ns.
b. Smal
l
cr
y
st
al
gr
ai
ns.
c. El
ongat
edcr
y
st
al
gr
ai
ns.
d. Di
st
or
t
edcr
y
st
al
gr
ai
ns.
MULTI
CHOI
CEPAPERSEVEN
1.
Pi
pewel
di
ngcodesar
esetupby
:
a. Wel
di
ngoper
at
or
s.
b. St
at
egov
er
nment
s.
c. Associ
at
i
ons,
soci
et
i
es,
i
nsur
ancecompani
es,
manuf
act
ur
er
sandt
he
mi
l
i
t
ar
y
.
d. Const
r
uct
i
onuni
ons.
2.
Thedi
f
f
er
entgr
ai
nst
r
uct
ur
ebet
weent
hewel
ddeposi
tandt
hebasemet
al
canbe
det
er
mi
nedby
:
a. Af
acebendt
est
.
b. Ar
ootbendt
est
.
c. Ahar
dnesst
est
.
d. Anet
chi
ngt
est
.
3.
Ar
ootbendt
esti
susedt
ot
estt
heamountofwel
d:
a. Duct
i
l
i
t
y
.
b. El
ongat
i
on.
c. Har
dness.
d. Penet
r
at
i
on.
4.
Whatwoul
dbeobser
v
edi
faf
i
l
l
etwel
dwer
esect
i
onedandmacr
oet
ched?
25
a.
b.
c.
d.
Thegr
ai
noft
heot
herbeadsi
scoar
sert
hant
hef
i
nal
bead.
Thepenet
r
at
i
onandf
usi
oni
nt
ot
her
ooti
sv
er
ydeep.
Eachbeadappear
st
obedi
st
i
nct
l
ysepar
at
edf
r
om t
headj
oi
ni
ngbeads.
Thegr
ai
nst
r
uct
ur
er
emai
nst
hesamei
nal
l
passes.
5.
Whati
st
hemostcommoncauseoff
ai
l
ur
ei
nr
ootbendt
est
s?
a. Toohi
ghacur
r
entset
t
i
ng.
b. Tool
ongapausei
nt
hedowncy
cl
eoft
heweav
e.
c. Lackoff
usi
onandpenet
r
at
i
on.
d. Toohi
ghat
r
av
el
speed.
6.
Thepur
poseofani
ckbr
eakspeci
meni
st
opr
ov
i
deat
estf
or
:
a. Tensi
l
est
r
engt
handf
r
act
ur
eappear
ance.
b. Duct
i
l
i
t
yandf
r
act
ur
eappear
ance.
c. El
ongat
i
onandf
r
act
ur
eappear
ance.
d. Soundnessandf
r
act
ur
eappear
ance.
7.
Whi
chor
gani
sat
i
onpubl
i
shest
hemostcommonl
yusedcodef
orboi
l
erand
pr
essur
ev
essel
wel
di
ng?
a. Amer
i
canWel
di
ngSoci
et
y
.
b. Amer
i
canSoci
et
yofMechani
cal
Engi
neer
s.
c. Amer
i
canPet
r
ol
eum I
nst
i
t
ut
e.
d. Amer
i
canNat
i
onal
St
andar
dsI
nst
i
t
ut
e.
8.
Al
owhy
dr
ogenel
ect
r
ode,
accor
di
ngt
oBS639,
woul
dcont
ai
n:
a. Nohy
dr
ogen.
b. Lesst
han15ml
ofhy
dr
ogenper100gr
amsofdeposi
t
edwel
dmet
al
.
c. Bet
ween15ml
and25ml
ofhy
dr
ogenper100gr
amsofdeposi
t
edwel
d
met
al
.
d. Lesst
han25ml
ofhy
dr
ogenper100gr
amsofdeposi
t
edwel
dmet
al
.
9.
Thesecondr
uni
nat
hr
eer
unbut
twel
dusi
ngt
hest
ov
epi
pet
echni
quei
sknownas
t
he:
a. Fi
l
l
i
ngr
un.
b. Hotpass.
c. I
nt
er
medi
at
er
un.
d. Seal
i
ngr
un.
10. Youcoul
ddet
er
mi
net
hatanel
ect
r
odei
scel
l
ul
osi
cbyi
t
s:
a. BS639codi
ng.
b. Col
our
.
c. Tr
adename.
d. BS499codi
ng.
11. Whi
cht
y
peofel
ect
r
odecoat
i
nggi
v
est
hemostv
ol
umi
nousgasshi
el
d?
a. Rut
i
l
e.
b. Basi
c.
c. Oxi
di
si
ng.
26
d.
Cel
l
ul
osi
c.
12. Whi
choft
hef
ol
l
owi
ngst
eel
si
sl
i
kel
yt
obemor
esuscept
i
bl
et
ohy
dr
ogencr
acki
ng?
a. Car
bonequi
v
al
entofl
esst
han0.
25%.
b. Car
bonequi
v
al
entof0.
35%.
c. Car
bonequi
v
al
entof0.
38%.
d. Car
bonequi
v
al
entof0.
43%.
13. Pr
eheat
i
ngandi
nt
er
passheat
i
ngar
eusedpr
i
mar
i
l
yf
or
:
a. Ai
di
ngf
usi
on.
b. Reduci
nghy
dr
ogencont
entofwel
dpr
epar
at
i
onpr
i
ort
owel
di
ng.
c. Ensur
eaf
i
negr
ai
nsi
ze.
d. Sl
owdownt
hecool
i
ngr
at
eaf
t
erwel
di
ng.
14. Submer
gedar
cwel
dsmadewi
t
hr
ecy
cl
edf
l
uxar
el
i
abl
et
o:
a. Por
osi
t
y
.
b. Cour
segr
ai
nsi
ze.
c. Under
cut
.
d. I
ncompl
et
epenet
r
at
i
on.
15. I
ncompl
et
epenet
r
at
i
oni
nasi
ngl
e'
V'
but
tj
oi
ntcoul
dbecausedby
:
a. Tool
ar
gear
ootgap.
b. Toosmal
l
ar
ootgap.
c. Toohi
ghaheati
nput
.
d. Toosmal
l
ar
ootf
ace.
16. I
nsubmer
gedar
cwel
di
ng,
whi
choft
hef
ol
l
owi
ngwi
dt
ht
odept
hr
at
i
oswoul
dbe
l
i
kel
yt
or
esul
ti
nsol
i
di
f
i
cat
i
oncr
acki
ng?
a. 1:
3.
b. 3:
1.
c. 2:
1.
d. 1:
1.
17. Youar
er
esponsi
bl
ef
orcont
r
ol
l
i
ngwel
di
ngonsi
t
e.Al
ar
gei
nci
denceofpor
osi
t
yhas
beenr
epor
t
edi
nr
ecentwel
di
ng.Woul
dy
oui
nv
est
i
gat
e?
a. Theel
ect
r
odet
y
pe.
b. Powersour
ce.
c. El
ect
r
odest
or
age.
d. Dayt
emper
at
ur
e.
18. Themai
nr
easonwhyal
l
adher
i
ngscal
eshoul
dber
emov
edwhent
hepi
peend
pr
epar
at
i
oni
smadebyoxy
gascut
t
i
ngi
s?
a. Oxi
di
sat
i
onoft
hewel
dmet
al
i
smi
ni
mi
sed.
b. Thespeedofwel
di
ngi
si
ncr
eased.
c. Pi
pebor
eal
i
gnmenti
smadeeasi
er
.
d. Reduct
i
onoft
hewel
ddeposi
ti
spr
ev
ent
ed.
19. Whenmanual
met
al
ar
cwel
di
ngl
owcar
bonst
eel
,
whi
chel
ect
r
odecov
er
i
ngwi
l
l
gi
v
e
t
hegr
eat
estdegr
eeofpenet
r
at
i
on?
a. I
r
onpowder
.
27
b.
c.
d.
Rut
i
l
e.
Cel
l
ul
osi
c.
Lowhy
dr
ogen.
20. Whent
ungst
enar
cgasshi
el
dedwel
di
ngst
ai
nl
essst
eel
,
whi
choneoft
hef
ol
l
owi
ng
shoul
dbeused?
a. Al
t
er
nat
or
.
b. A.C.t
r
ansf
or
mer
.
c. D.C.gener
at
or
.
d. Const
antpot
ent
i
al
r
ect
i
f
i
er
.
21. Whi
chgasshr
oudshoul
dbeusedwhent
ungst
enar
cgasshi
el
dedwel
di
ng
al
umi
ni
um al
l
oy
s?
a. Ni
t
r
ogen.
b. Car
bondi
oxi
de.
c. Ar
gon/
car
bondi
oxi
demi
xt
ur
e.
d. Ar
gon.
22. Themostcommont
y
peofdef
ectf
oundi
nast
r
uct
ur
ewheni
ti
sunder
goi
ngser
v
i
ce
i
s:
a. Fat
i
guecr
acki
ng.
b. Cr
y
st
al
l
i
sat
i
on.
c. Wel
ddecay
.
d. St
r
essf
r
act
ur
e.
23. I
nt
heexami
nat
i
onofawel
dedal
umi
ni
um j
oi
nt
,
macr
oet
chi
ngmayr
ev
eal
:
a. Lackofi
nt
er
r
unpenet
r
at
i
on.
b. Car
bonpi
ckup.
c. Wel
ddecay
.
d. Mi
cr
ocr
acks.
24. MMAwel
dsmadewi
t
hdamagedel
ect
r
odecoat
i
ngsar
esubj
ectt
o:
a. Por
osi
t
y
.
b. Under
cut
.
c. Excessi
v
epenet
r
at
i
on.
d. Excessi
v
ebeadhei
ght
.
25. Whi
chphy
si
cal
t
esti
smor
el
i
kel
yt
or
ev
eal
HAZembr
i
t
t
l
ement
?
a. Tr
ansv
er
set
ensi
l
e.
b. Al
l
wel
dt
ensi
l
e.
c. Rootbend.
d. Char
pyi
mpact
.
26. Whi
choft
hef
ol
l
owi
ngdest
r
uct
i
v
et
est
si
snotnor
mal
l
yr
equi
r
edf
orwel
der
appr
ov
al
?
a. Bendt
est
s.
b. Macr
oexami
nat
i
on.
c. I
mpactt
est
s.
d. Fr
act
ur
et
est
s.
28
27. Tool
ar
geadi
amet
eroff
i
l
l
err
odshoul
dnotbeusedt
omakeawel
dedj
oi
nt
because:
a. Excessr
ei
nf
or
cementpr
of
i
l
ewi
l
l
bedi
f
f
i
cul
tt
oobt
ai
n.
b. Thei
ncl
udedbev
el
angl
ewi
l
l
hav
et
ober
educed.
c. Rootf
usi
onmaybedi
f
f
i
cul
tt
oobt
ai
n.
d. Thegapset
t
i
ngwi
l
l
hav
et
obechanged.
28. I
fpi
pebor
esar
enotmat
chedcor
r
ect
l
yi
tcanr
esul
ti
n:
a. Lackofr
ootpenet
r
at
i
on.
b. I
ncor
r
ectgapset
t
i
ng.
c. Excessi
v
er
ootf
aces.
d. Ov
er
heat
i
ngdur
i
ngwel
di
ng.
29. Acor
r
ect
l
ymadet
ackwel
dshoul
dsl
opef
r
om t
hemi
ddl
et
ot
heendsi
nor
dert
o:
a. Ai
dbet
t
erpenet
r
at
i
onatt
hej
oi
nup.
b. Pr
ev
entpor
osi
t
yatt
hej
oi
nup.
c. Reducet
heel
ect
r
odesi
zer
equi
r
ed.
d. Reducet
heov
er
al
l
consumabl
econsumpt
i
on.
30. Twol
owcar
bonst
eel
pi
pes,
150mm di
amet
erand6mm wal
l
t
hi
ckness,
ar
et
obe
but
twel
dedusi
ngt
heTI
Gpr
ocess.Toensur
eaf
ul
l
st
r
engt
hj
oi
nt
,
whi
choft
he
f
ol
l
owi
ngpr
epsi
smostsui
t
abl
e?
a. Opensi
ngl
ebev
el
.
b. Opensi
ngl
eVee.
c. Opensquar
epr
epar
at
i
on.
d. Cl
osedsquar
epr
epar
at
i
on.
PROPERTI
ESOFMATERI
ALS
1.
Theabi
l
i
t
yofamat
er
i
al
t
owi
t
hst
andal
oadpul
l
i
ngi
tapar
ti
scal
l
edi
t
s_
_
_
_
_
_
_
_
_
_
_
_
_
_
.
2.
Theabi
l
i
t
yofamat
er
i
al
t
obest
r
et
chedoutwi
t
houtbr
eaki
ngi
scal
l
ed_
_
_
_
_
_
_
.
3.
AnI
zodi
mpactmachi
nei
susedt
ogi
v
ei
ndi
cat
i
onoft
he_
_
_
_
_
_
_ofamat
er
i
al
.
4.
Theabi
l
i
t
yt
owi
t
hst
andi
ndent
at
i
oni
scal
l
ed_
_
_
_
_
_
_
.
5.
Lackofduct
i
l
i
t
yi
scal
l
ed_
_
_
_
_
_
_
.
6.
Thepr
oper
t
yofamet
al
t
or
et
ur
nt
oi
t
sor
i
gi
nal
shapei
scal
l
ed_
_
_
_
_
_
_
.
7.
I
ncr
easei
ncar
boncont
entcausesan_
_
_
_
_
_
_i
nst
r
engt
handhar
dness.
8.
Whencar
bonper
cent
agei
ncr
eases,
t
her
ei
sadecr
easei
n_
_
_
_
_
_
_
.
9.
Lowcar
bonst
eel
cont
ai
nsl
esst
han_
_
_
_
_
_
_car
bon.
10. Lowduct
i
l
i
t
yi
nawel
dmet
al
coul
dr
esul
ti
n_
_
_
_
_
_
_
.
11. Al
l
oy
i
ngi
susedt
o_
_
_
_
_
_
_mechani
cal
andphy
si
cal
pr
oper
t
i
esofast
eel
.
29
12. Sul
phurandphosphor
usar
enotal
l
oy
i
ngel
ement
s;
t
heyar
e_
_
_
_
_
_
_
.
13. Al
l
oy
i
ngal
l
owsdesi
gner
st
ouse_
_
_
_
_
_
_sect
i
onsandst
i
l
l
hav
et
hesamest
r
engt
h.
14. Anal
l
oyt
hatcont
ai
nsahi
ghper
cent
ageofchr
omi
um andni
ckel
woul
dhav
e
r
esi
st
ance
t
o_
_
_
_
_
_
_
.
15. Quenchi
ngacar
bonorl
owal
l
oyst
eel
wi
l
l
r
esul
ti
nan_
_
_
_
_
_
_i
nhar
dnessanda
_
_
_
_
_
_
_
i
nduct
i
l
i
t
y
.
16. Thehar
dconst
i
t
uentt
hatr
esul
t
swhenst
eel
i
squenchedi
scal
l
ed_
_
_
_
_
_
_
.
17. Thet
oughl
ami
nat
edst
r
uct
ur
et
hati
sf
or
medonsl
owcool
i
ngoff
er
r
i
t
eandi
r
on
car
bi
de
(
cement
i
t
e)i
scal
l
ed_
_
_
_
_
_
_
.
18. Theamountofmar
t
ensi
t
ef
or
meddependsont
hespeedof_
_
_
_
_
_
_andt
he
per
cent
age
of_
_
_
_
_
_
_
.
19. Af
t
erquenchi
ng,
t
hest
r
uct
ur
emaybei
mpr
ov
edbyr
eheat
i
ngt
o200300
C.Thi
si
s
cal
l
ed
_
_
_
_
_
_
_
_
.
20. Smal
l
per
cent
agesofchr
omi
um wi
l
l
i
ncr
easet
hest
r
engt
hand_
_
_
_
_
_
_
,
whi
l
easmal
l
per
cent
ageofni
ckel
wi
l
l
i
ncr
ease_
_
_
_
_
_
_
.
ANSWERS
PAPERONE
1.
d
8.
a
15. c
22. a
29. b
PAPERTWO
1.
b
8.
d
15. c
2.
6.
9.
13.
16.
20.
23.
27.
30.
d
b
c
b
a
d
d
c
b
2.
a
6.
c
9.
d
13. c
16. b
3.
7.
10.
14.
17.
21.
24.
28.
b
c
a
b
a
c
c
b
4.
3.
b
7.
d
10. d
14. b
17. b
c
5.
c
11. d
12. a
18. b
19. a
25. d
26. d
4.
5.
d
c
11. b
12. b
18. c
19. b
30
22. d
29. d
PAPERTHREE
1.
d
8.
d
15. d
22. d
29. c
PAPERFOUR
1.
c
8.
b
15. c
22. c
29. a
PAPERFI
VE
1.
a
8.
c
15. a
22. a
28. a
20.
23.
27.
30.
c
c
b
b
21. b
24. b
28. b
2.
6.
9.
13.
16.
20.
23.
27.
30.
a
c
d
b
d
d
d
d
b
3.
7.
10.
14.
17.
21.
24.
28.
2.
6.
9.
13.
16.
20.
23.
27.
30.
b
a
a
d
b
a
d
a
b
2.
6.
9.
13.
16.
20.
23.
27.
29.
b
d
d
d
a
c
b
b
b
25. c
26. c
d
b
d
d
b
d
c
b
4.
5.
3.
7.
10.
14.
17.
21.
24.
28.
3.
7.
10.
14.
17.
21.
24.
d
d
11. d
12. d
18. d
19. a
25. d
26. d
c
b
a
c
c
c
b
d
4.
5.
c
b
d
d
d
b
b
b
a
11. b
12. d
18. a
19. c
25. c
26. c
4.
5.
d
b
11. d
12. d
18. d
19. d
25. a
26. b
30. b
31
PAPERSI
X
1.
b
8.
c
15. a
22. a
29. d
PAPERSEVEN
1.
c
8.
b
15. b
22. a
29. a
2.
6.
9.
13.
16.
20.
23.
27.
30.
c
b
b
c
b
c
b
a
a
3.
7.
10.
14.
17.
21.
24.
28.
b
d
d
c
d
c
c
b
4.
2.
6.
9.
13.
16.
20.
23.
27.
30.
d
d
b
b
a
c
a
c
b
3.
7.
10.
14.
17.
21.
24.
28.
a
b
a
a
c
d
a
a
d
5.
c
11. d
12. c
18. a
19. c
25. b
26. a
4.
5.
c
c
11. d
12. d
18. a
19. c
25. d
26. c
PROPERTI
ESOFMATERI
ALS
1.Tensi
l
eSt
r
engt
h.
Har
dness.
5.
Br
i
t
t
l
eness.
9.
0.
2%
13.Smal
l
er
/
Thi
nner
.
16.
Mar
t
ensi
t
e.
19.
Temper
i
ng.
2.Duct
i
l
i
t
y
.
3.Toughness.
4.
6.El
ast
i
ci
t
y
.
7.I
ncr
ease.
8.Duct
i
l
i
t
y
.
10.Cr
acki
ng.
11.I
ncr
ease.
12.I
mpur
i
t
i
es.
14.Cor
r
osi
on.
15.
I
ncr
ease.
.
.
.
Decr
ease
17.
Pear
l
i
t
e.
18.Cool
i
ng.
.
.
.
Car
bon.
20.Har
dness.
.
.
.
Toughness.
32