CWB 2 Module 7 Questions 100% SOLVED!!

CWB 2 Module 7 Questions 100%
SOLVED!!
True or False?

Weld metal shrinkage is not proportional to the amount of weld metal. -
ANSWERFalse

True or False?

Longitudinal residual stress may be as high as the yield stress of the base metal. -
ANSWERTrue
What is the following formula applicable to?

S = 0.18 Aw / t + 0.05d - ANSWERTransverse shrinkage - butt welds

What is the following formula applicable to?

S = 0.025 Aw / Ar - ANSWERLongitudinal shrinkage - butt welds

In seam welding, what is the simplest form of distortion control? - ANSWERStart at
the same distance from the end of the joint, making a short weld first

True or False?

Where planting and stiffeners are combined as a ship bulkhead work, the butt and
seam welds in plating should be welded before the stiffeners. - ANSWERTrue

True or False?

In filling up a weld joint, the number of weld passes does not affect distortion. -
ANSWERFalse
Distortion may be partially or fully controlled by mechanical means using:

A) Rigid clamping or fixturing
B) Pre-bending or setting
C) Pre-weld heat treatment
D) Post-weld heat treatment
E) Subassembly
F) A, B, and C - ANSWERF) A, B, and C

True or false?

In a welded assembly with both groove and fillet welds, the fillet welds should be
completed first and then the groove welds. - ANSWERFalse

What is the advantage of intermittent fillet welds? - ANSWERLess distortion