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1. To htmeasure htthe htstrength htof hta htwelded htjoint htwhat
htmechanical httest htwould htyou htprescribe?
a) A httransverse htweld httension httest.
b) A htcharpy httest.
c) A htCTOD httest.
d) An htall htweld htmetal httension httest.
e) A htside htbend httest.
Ans: hta) htA httransverse htweld httension httest.
2. Select htthe htcutting htprocess htthat htwould htprovide htthe
htnarrowest htheat htaffected htzone htwhen htcutting ht12.5 htmm ht(0.5
htin) htthick htcarbon htsteel.
a) Oxy-acetylene htcutting.
b) Air-carbon htarc htcutting.
c) Oxy-propane htcutting.
1 ht/
ht10
, d) Plasma htarc htcutting.
e) Laser htbeam htcutting
Ans: hte) htLaser htbeam htcutting
3. Which htof htthe htfollowing htrefers htto hta htwelder httest htwhere hta
htpipe htassembly htis htplaced htvertically htand htthe htjoint htwelded htin
htthe hthorizontal htposition htwithout htrotat- hting htthe htassembly?
a) 1G
b) 2G
c) 3G
d) 5G
e) 6G
Ans: htb) ht2G
4. Which htof htthe htfollowing htimperfections htis htnormally htconsidered
htas htunaccept- htable htregardless htof htsize htor htlocation?
a) Porosity.
b) Crack.
c) Inadequate htpenetration.
d) Lamination.
e) Burn-through.
Ans: htb) htCrack.
5. Select htthe htcorrect htpenetrameter htthickness htfor ht2%
htsensitivity htwhen htradi- htographing hta htweldment ht1.25 htinches
htin htthickness.
a) 0.012 htin.
b) 0.015 htin.
2 ht/
ht10