Which Which of these drawin drawing g symbols symbols shows shows weld penetr penetration ation depth depth in accordan accordance ce with BS EN EN 22553? 22553?
1s
! 1s
s1
B
%
1s
s1
&
2.
BS EN EN 2 2 is a spec specifi ifica cation tion for... for...... ..... ! B % &
3.
What determine determiness the penetrati penetrating ng power power of 'amma 'amma rays? rays? ! B % &
).
,olybden$m %hromi$m -itani$m %arbon
re(heati re(heating ng a steel plate plate with with a carbon carbon e#$i"alent e#$i"alent "al$e "al$e /%E0 /%E0 of .) may may be re#$ired re#$ired in order order to ........ ........ ! B % &
4.
time type of isotope so$rce(to(film di distance so$rce strength
Which Which element element has the greates greatestt effect effect on the *!+ *!+ hardness hardness of carbon( carbon(mang manganes anesee steel? ! B % &
dri"e o$t moist$re from the plate pre"ent ecessi"e hardening in the *!+ pre"ent the formation of carbides impr impro" o"ee the the mecha echani nica call pr prope operties ties of the the we weld metal tal
! welder welder appro"al appro"al certi certifica ficate te sho$ld sho$ld be be withdra withdrawn wn if ......... ......... ! B % &
he has has no not don donee any any weldin lding g for for a per period iod of of ) mon month thss he has has be been abs abseent from wor or for for a pe period iod of of 6 month onthss the repair rate for his welds lds ece ceeds 17 all of the abo"e
-W8 North9 ,iddlesbro$gh
1
Welding Inspection:
Multi-Choice Questions
Paper 4
(Rev. 2)
Please return this paper unar!ed 6.
8n friction welding9 the metal at the interface when the :oining occ$rs is described as being in the .......... ! B % &
.
! penetrameter is $sed to meas$re ......... ! B % &
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