GATE PI 2004 | Welding Question 24 | Joining of Materials

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 2004

MCQ (Single Correct Answer)

-0.3

The metal powder used in Thermit welding of steel is:

$$Al$$

$$Cu$$

$$Pb$$

$$W$$

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

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

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Engineering Mechanics

Engineering Mechanics Static and Dynamics

Strength of Materials

Simple Stress and Strain Shear Force and Bending Moment Complex Stresses Deflection of Beams Thin Cylinders Pure Bending

Theory of Machines

Analysis of Plane Mechanisms Flywheel

Engineering Mathematics

Probability and Statistics Complex Variable Vector Calculus Numerical Methods Linear Algebra Calculus Differential Equations Transform Theory

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Heat Transfer

Fin Design and Transient Heat Conduction Radiation Conduction Heat Exchangers

Thermodynamics

Entropy and Irreversibility

Casting

Casting Process

Joining of Materials

Welding

Metal Forming

Sheet Metal Forming Processes Metal Forming Process

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