Cold cracks can be prevented by __________(a) uniform heating(b) by use of low hydrogen electrode(c) faster cooling(d) slower coolingThe question was posed to me by my school principal while I was bunking the class.My doubt is from Weld Defects & Types of Joints in division Welded Connections of Design of Steel Structures

Cold cracks can be prevented by __________(a) uniform heating(b) by us

1.	Cold cracks can be prevented by __________(a) uniform heating(b) by use of low hydrogen electrode(c) faster cooling(d) slower coolingThe question was posed to me by my school principal while I was bunking the class.My doubt is from Weld Defects & Types of Joints in division Welded Connections of Design of Steel Structures
Answer» The correct answer is (b) by use of low hydrogen electrode Easiest explanation: Cold cracks occur under room TEMPERATURE run PARALLEL to but under the weld in base metal. Use of low hydrogen electrodes along with PROPER pre-heating and post-heating MAY REDUCE possibility of cold cracks.

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