Welding Inspection:
Multi-Choice Questions
Paper 2
(Rev. 2)
Please return this paper unmared unmared 1.
Deflection of the arc arc by magnetic magnetic forces, that that can make make welding difficult to to control, is commonly known as ...... A B C D
2.
Which Which of the following following elect electrode rodess is classif classified ied to BS E E !"" # # B ' D
&.
it is wasteful the rod diameter be too large the "el "eld metal compositio ition n ma+ !e "rong the rod is too short
9or 07+ 07+ welding welding,, what benef benefit it does does a current current slo-e slo-e*out *out de/ice de/ice ha/e ha/e # A ' ' D
).
lack of inter*run fusion a reduction in #* toughness lack of sidewall fusion all of the abo/e
8ou notice that A electrodes, with with the flu4 co/ering remo/ed, are are being used used as filler filler rods for for 07+ welding. welding. 0his should not be allowed because ........ A B C D
(.
!asic ce cellulosic an and ru rutile neutral, cellulosic an and ru rutile basic, cellulosic and neutral rutile, low hydrogen and basic
A W3S may s-ecify a ma4imum width for indi/idual weld weld beads 5the 5the wea/e width6 width6 when welding '*n '*n steels. 7f the width is e4ceeded it may cause ..... A ' ' D
$.
rutile cellulosic high reco/ery rutile all of the abo/e
0he three three main main ty-es ty-es of A elect electrode rodess used for for welding welding ' '*n '*n steels steels are are ....... ......... # B ' D
.
$ %& % R E $%1& E (%1) * + E 1 && B
Which Which of ty-e of electro electrode de is used for sto/e* sto/e*-i-e -i-e welding welding for for o/erland o/erland -i-eline -i-eliness constructi construction on # A ' ' D
!.
arc initiation arc misalignment arc !lo" arc constriction
it reduces 0ungsten s-atter it re reduces th the ri ris o, o, cr crater cr cracing it reduces the risk of arc strikes it reduces the inter-ass tem-erature
Which Which ty-e of -ower -ower source charac characteri teristic stic is normal normally ly used for for manual weldi welding# ng# A B C D
constant /oltage flat ch characteristic constant current a motor generator
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1
Welding Inspection:
Multi-Choice Questions
Paper 2
(Rev. 2)
Please return this paper unmared ".
7n A welding, -enetration is -rinci-ally controlled by ........ A B '
arc /oltage welding s-eed ferro*silicon in the electrode coating current
1%. 3i-e bores of some materials must be -urged with Argon before and during 07+ welding in order to ...... A B C D
-re/ent linear -orosity -re/ent burn*through prevent oidation o, the root !ead eliminate moisture -ick*u- in the root bead
11. 0he chemical com-osition of the weld metal de-osited by a '*n steel A electrode is usually controlled by .. A ' ' D
the core wire com-osition additions in the ,lu coating iron -owder in the flu4 coating dilution from the base material
12. Silicon is added to steel, and the co/ering of A electrodes, in order to gi/e ......... # B ' D
deoidation im-ro/e strength im-ro/e toughness more resistance to hydrogen cracking
1&. A fusible insert for 07+ welding hel-s to ........... A ' ' D
reduce -orosity give controlled root penetration a/oids the need for a back -urge all of the abo/e
1!. According to AWS 2.! a weld symbol for the other side is -laced ........ A B C D
abo/e the dashed line below the dashed line a!ove the solid line below the solid line
1. When low hydrogen A electrodes are s-ecified for what ty-e of co/ering will they ha/e # A B '
cellulosic rutile acid !asic
1$. A hydrogen controlled A electrode can always be recognised by the ........ # B ' D
$/ code letter (or #W0 code num!er) electrode length 0rade ame colour of the co/ering
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2
Welding Inspection:
Multi-Choice Questions
Paper 2
(Rev. 2)
Please return this paper unmared 1(. According to BS E 22& which of the following symbols re:uires weld toes to be smoothly blended on the ;other side # A
B
C
D
1). Which of the following units is used to e4-ress
=oules >mm2 =>mm2 1mm
1". Which one of the following elements is added to steel to gi/e resistance to cree- at ele/ated ser/ice tem-eratures# A B C D
ickel anganese Mol+!denum Aluminium
2%. ick break and fillet fracture tests are used for ..... # B ' D
assessing "eld 3ualit+ assessing weld metal ductlity assessing weld metal toughness all of the abo/e
21. Which of the following steels is non*magnetic # # B ' D
4&5 Cr &5 /i 2.2 'r 1o "?'r,1 o "? i
22. Weld s-atter during A welding is most likely to be caused by ....... # B
ecessive current incorrect baking and storage of electrodes
0W7 orth, iddlesbrough
&
Welding Inspection:
Multi-Choice Questions
Paper 2
(Rev. 2)
Please return this paper unmared ' a bad batch of electrodes D all of the abo/e 2&. A :ualified Welding 3rocedure S-ecification is used to ......... A B '
gi/e instruction to the welder gi/e information to the welding ins-ector gi/e confidence that welds will ha/e the s-ecified -ro-erties all o, the a!ove
2!. An arc strike 5stray flash6 on a steel com-onent is regarded by some codes as unacce-table because ...... A B '
it will cause co--er contamination it may cause hard s-ots it may gi/e cracking o, !oth ' 6 C
2. 7n a trans/erse tensile test, brittleness would be indicated if ......... A ' ' D
there is a reduction in cross*section at the -osition of fracture the ,racture sur,ace is ,lat and ,eatureless !ut has a rough sur,ace fracture occurred in the weld metal the fracture face shows beach marks
2$. 0he surface of a fatigue crack will ........ A B C D
be rough and torn ha/e shar- che/ron markings !e smooth ha/e shear li-s
2(. What does the number 1!1 refer to on this drawing symbol # A ' ' D
the W3S umber the "elding process a filler material the acce-tance standard
1!1
2). 0he -olarity used for 07+ welding of all materials, e4ce-t aluminium and magnesium, is ......... # B ' D
C negative D' -ositi/e A' any -olarity can be used
2". A ty-ical tem-erature range for baking low hydrogen electrodes is ......... A B C D
1% to 2%%@' 2%% to 2%@' %77 to %879C !%% to !%@'
&%. 7f welding tra/el s-eed is doubled, but the current and /oltage remain the same, the heat in-ut will ..... # B '
!e reduced !+ 875 be increased by a factor of two be about the same
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!
Welding Inspection:
Multi-Choice Questions
Please return this paper unmared D
be reduced by a--ro4imately 2?
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Paper 2
(Rev. 2)
