GATE ME 2015 Set 3 | Welding Process Question 12 | Production Engineering

GATE ME 2015 Set 3

MCQ (Single Correct Answer)

-0.3

Which two of the following joining processes are autogeneous?
$$(i)$$ Diffusion welding
$$(ii)$$ Electro slag welding
$$(iii)$$ Tungsten inert gas welding
$$(iv)$$ Friction welding

$$(i)$$ and $$(iv)$$

$$(ii)$$ and $$(iii)$$

$$(ii)$$ and $$(iv)$$

$$(i)$$ and $$(iii)$$

GATE ME 2015 Set 1

MCQ (Single Correct Answer)

-0.3

In a linear arc welding process, the heat input per unit length is inversely proportional to

welding current

welding voltage

welding speed

duty cycle of the power source

GATE ME 2014 Set 4

MCQ (Single Correct Answer)

-0.3

Within the Heat Affected Zone (HAZ) in a fusion welding process, the work material undergoes

microstructural changes but does not melt

neither melting nor microstructural changes

both melting and microstructural changes after solidification

melting and retains the original microstructure after solidification

GATE ME 2014 Set 1

MCQ (Single Correct Answer)

-0.3

The major difficulty during welding of aluminium is due to its

high tendency of oxidation

high thermal conductivity

low melting point

low density

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GATE ME Subjects

Engineering Mechanics

Engineering Mechanics Static and Dynamics

Machine Design

Bolted Riveted and Welded Joints Design For Static Loading Design of Brakes and Clutches Design of Spur Gears Design of Bearings Fatigue Strength

Strength of Materials

Springs Simple Stress and Strain Complex Stresses Pure Bending Moment of Inertia Shear Force and Bending Moment Stresses In Beams Deflection of Beams Columns and Struts Torsion Strain Energy Method Thin Cylinders

Heat Transfer

Conduction Fin Design and Transient Heat Conduction Convection Radiation Heat Exchangers

Production Engineering

Sheet Metal Forming Processes Metal Cutting Welding Process Metal Forming Casting Advance Machine Tools Machining Metrology and Inspection

Industrial Engineering

Queuing Production Planning and Control Line Balancing Forecasting Linear Programming Assignment Pert and Cpm Inventory Control Transportation Scheduling

Turbo Machinery

Theory of Machines

Analysis of Plane Mechanisms Gears and Gear Trains Vibrations Flywheel

Engineering Mathematics

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

Fluid Mechanics

Fluid Properties Fluid Statics Boundary Layer Turbulent Flow Laminar Flow Fluid Dynamics Fluid Kinematics

Thermodynamics

Properties of Pure Substances Basic Concepts and Zeroth Law First Law of Thermodynamics Calculation of Work and Heat Entropy and Irreversibility Rankine Cycle Availability Second Law of Thermodynamics

General Aptitude

Numerical Ability Logical Reasoning Verbal Ability