GATE PI 2004 | Welding Question 24 | Joining of Materials

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GATE PI 2004

MCQ (Single Correct Answer)

-0.3

The metal powder used in Thermit welding of steel is:

$$Al$$

$$Cu$$

$$Pb$$

$$W$$

GATE PI 2004

MCQ (Single Correct Answer)

-0.3

The current in Amperes used in resistance spot welding of plain carbon steel sheets ($$1$$ to $$3$$ $$mm$$ thick) lies within the range:

$$10$$-$$50$$

$$50$$-$$500$$

$$500$$-$$5000$$

$$5000$$-$$50000$$

GATE PI 2003

MCQ (Single Correct Answer)

-0.3

In resistance welding, heat is generated due to the resistance between

electrode and work piece

asperities between touching plates

two dissimilar metals being in contact

inter-atomic force s

GATE PI 2003

MCQ (Single Correct Answer)

-0.3

High speed electron beam welding is focused on the weld spot using

vacuum lens

inert gas lens

optical lens

magnetic lens

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