CWB MODULE 10 EXAM REVIEW
CORRECT 100%
WELD FAULTS (DISCONTINUITIES) ARE DIVIDED INTO THREE GENERAL
CLASSES. WHAT ARE THEY - ANSWER-DIMENSIONAL
-STRUCTURAL (process related)
-DEFECTIVE (weld and base metal)
INSUFFICIENT ROOT OPENING MAY RESULT IN WHICH WELD DISCONTINUITY? -
ANSWERINCOMPLETE JOINT PENETRATION
POROSITY MAY OCCUR
A) OPEN TO THE SURFACE OF THE WELD ONLY
B) IN THE HEAT-AFFECTED ZONE
C) BELOW THE SURFACE OF THE WELD ONLY
D) OPEN TO THE SURFACE AND/OR BELOW THE SURFACE OF THE WELD -
ANSWERD) OPEN TO THE SURFACE AND/OR BELOW THE SURFACE OF THE
WELD
WHAT CAN OCCUR IF SURFACE CONTAMINANTS SUCH AS OIL, GREASE, PAINT
AND OXIDES ARE NOT REMOVED PRIOR TO WELDING - ANSWERPOROSITY
WHERE DO TRANSVERSE CRACKS OCCUR - ANSWERWELD METAL AND BASE
METAL
PROPER MATERIAL SELECTION AND USE MAY BE VERIFIED BY - ANSWERMILL
TEST CERTIFICATES
OVERLAP OF A FILLET WELD AFFECTS THE ____________________ OF THE
JOINT - ANSWERAFFECTS THE STRENGTH OF THE JOINT
THE TERM CONVEXITY NORMALLY REFERS TO THE PROFILE OF A -
ANSWERFILLET WELD
WHICH OF THE FOLLOWING TYPICALLY CAUSE EXCESSIVE WELD
REINFORCEMENT
A) DEPOSITING TOO FEW PASSES
B) IMPROPER WELD PASS SEQUENCING
C) IMPROPER WELDING FLUX
D) WRONG CHOICE OF SHIELDING GAS - ANSWERB) IMPROPER WELD PASS
SEQUENCING
CORRECT 100%
WELD FAULTS (DISCONTINUITIES) ARE DIVIDED INTO THREE GENERAL
CLASSES. WHAT ARE THEY - ANSWER-DIMENSIONAL
-STRUCTURAL (process related)
-DEFECTIVE (weld and base metal)
INSUFFICIENT ROOT OPENING MAY RESULT IN WHICH WELD DISCONTINUITY? -
ANSWERINCOMPLETE JOINT PENETRATION
POROSITY MAY OCCUR
A) OPEN TO THE SURFACE OF THE WELD ONLY
B) IN THE HEAT-AFFECTED ZONE
C) BELOW THE SURFACE OF THE WELD ONLY
D) OPEN TO THE SURFACE AND/OR BELOW THE SURFACE OF THE WELD -
ANSWERD) OPEN TO THE SURFACE AND/OR BELOW THE SURFACE OF THE
WELD
WHAT CAN OCCUR IF SURFACE CONTAMINANTS SUCH AS OIL, GREASE, PAINT
AND OXIDES ARE NOT REMOVED PRIOR TO WELDING - ANSWERPOROSITY
WHERE DO TRANSVERSE CRACKS OCCUR - ANSWERWELD METAL AND BASE
METAL
PROPER MATERIAL SELECTION AND USE MAY BE VERIFIED BY - ANSWERMILL
TEST CERTIFICATES
OVERLAP OF A FILLET WELD AFFECTS THE ____________________ OF THE
JOINT - ANSWERAFFECTS THE STRENGTH OF THE JOINT
THE TERM CONVEXITY NORMALLY REFERS TO THE PROFILE OF A -
ANSWERFILLET WELD
WHICH OF THE FOLLOWING TYPICALLY CAUSE EXCESSIVE WELD
REINFORCEMENT
A) DEPOSITING TOO FEW PASSES
B) IMPROPER WELD PASS SEQUENCING
C) IMPROPER WELDING FLUX
D) WRONG CHOICE OF SHIELDING GAS - ANSWERB) IMPROPER WELD PASS
SEQUENCING
