Match List-I (welding problems) with List-II (Causes) and select the correct answer using the codes given below the lists:

List - I List - II

A. Cracking of weld metal 1. Excessive stresses

B. Cracking of base metal 2. High joint rigidity

C. Porosity 3. Failure to remove slag from previous deposit

D. Inclusions 4. Oxidation

5. Excessive $H_{2}, O_{2}, N_{2}$ in the welding atmosphere

Codes:

$A B C D$

2453

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3142

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3421

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2153

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Solution

The correct option is D $2153$
$2153$

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Similar questions

Lis-I	List-II
A. Spatter	1. Damp electrodes
B. Distortion	2. Arc blow
C. Slag inclusion	3. Improper cleaning in multi pass welding
D. Porosity	4. Poor joint selection

A B C D

\begin{matrix} List-I & List-II P. SAW & 1. above 75mm Q. MIG welding. & 2: Less than 5mm R. TIG welding. & 3.5 to 30mm S. Electroslag welding. & 4. 30 to 75mm \end{matrix}

A B C D

\begin{matrix} List-I & List-II P.Centrifugal compressor & 1.Axial flow Q.Centrifugal pump & 2.Surging R.Pelton wheel & 3.Priming S. Kaplan turbine & 4.Pure impulse \end{matrix}

\begin{matrix} List-I & List-II P.Pelton Turbine & 1.Draft tube Q.Francis Turbine & 2.Manometric Head R.Kalpan Turbine & 3.Mixed Flow S.Centrifugal pump & 4.No cavitation \end{matrix}

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List - I	List - II
A. Cracking of weld metal	1. Excessive stresses
B. Cracking of base metal	2. High joint rigidity
C. Porosity	3. Failure to remove slag from previous deposit
D. Inclusions	4. Oxidation
	5. Excessive $H_{2}, O_{2}, N_{2}$ in the welding atmosphere