GATE PI 2003 | Welding Question 26 | Joining of Materials

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GATE PI 2003

MCQ (Single Correct Answer)

-0.6

GATE PI 2003 Joining of Materials - Welding Question 31 English

$$P - 4,\,\,Q - 1,\,\,R - 3,\,\,S - 2$$

$$P - 3,\,\,Q - 2,\,\,R - 4,\,\,S - 3$$

$$P - 1,\,\,Q - 2,\,\,R - 4,\,\,S - 3$$

$$P - 2,\,\,Q - 4,\,\,R - 1,\,\,S - 3$$

GATE PI 2003

MCQ (Single Correct Answer)

-0.6

Match List - I (welding defects) with List - II (causes) and select the correct answer using the codes given below the lists GATE PI 2003 Joining of Materials - Welding Question 30 English

GATE PI 2003 Joining of Materials - Welding Question 30 English

$$A - 4,\,\,B - 2,\,\,C - 3,\,\,D - 1$$

$$A - 4,\,\,B - 2,\,\,C - 1,\,\,D - 3$$

$$A - 2,\,\,B - 4,\,\,C - 1,\,\,D - 3$$

$$A - 2,\,\,B - 4,\,\,C - 3,\,\,D - 1$$

GATE PI 2003

MCQ (Single Correct Answer)

-0.6

The cold cracking susceptibility of the heat affected zone in an arc weld is influenced by
$$P.$$ Entraped hydrogen,
$$Q.$$ Residual stresses
$$R.$$ Marternsitic transformation
$$S.$$ Slag inclusion

$$P,S$$

$$P,Q,S$$

$$P, Q, R$$

$$R,S$$

GATE PI 2003

MCQ (Single Correct Answer)

-0.6

A $$900$$ $$mm$$ long steel plate is welded by manual metal arc welding process using welding current of $$150$$ $$A,$$ arc voltage of $$20$$ $$V$$ and welding speed of $$300$$ $$mm/min.$$ If the process efficiency of is $$0.8$$ and surface resistance is $$36$$ micro-ohm, the heat input will be

$$600$$ $$J/mm$$

$$480$$ $$J/min$$

$$146$$ $$kJ$$

$$116$$ $$kJ$$

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