Q:- A typical min OCV requirement for MMA using either rutile or cellulosic electrode would be

• 40 Volts 
• 120 Volts 
• 100 Volts 
• 50 Volts

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Q:- The main problem with solution treatment of stainless steel is that

• Cnrolling the rate of temperature rise
• Controlling the cooling rate
• Length of the soak period
• High risk of distrotiom

Q:-When welding vertically up with MMA process weaving is sometimes restricted to 2.5 x electrode diameter, this restriction is mainly applied to

• Reduce the overall width of the weld
• Limit the heat input into the joint
• Reduce the no. of electrode in the joint
• Reduce the time require to finish the weld

Q:-With regards to lamellar tearing buttering layer will?

• Improve tougness
• Improve hardness
• Improve ductility