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Metallurgical Engineering · all questions

Miscellaneous in Metallurgy
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TIG welding is preferred for

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The temperature of the workpiece in metal working depends on

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Match following:
Group 1 Group 2
P. Ergun equation 1. Tube flow
Q. Hagen-poiseulle equation 2. overall energy balance
R. Bernoulli equation 3. packed bed
S. Fourier equation 4. Heat flow

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Thin walled pressure vessels are to be made either from Material A and B. If the applied stress is 1.2 times higher when material A is used and (KIC)A = 0.6(KIC)B (where, KIC denotes plain strain fracture toughness). The ratio of critical crack lengths in material A and B will be

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How is cooling of the material done is normalizing process

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Which one is true for an opaque body?

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For an edge dislocation, the intersection of the extra half-plane of atoms with the slip plane defines the

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A device used for measuring the rate of a flow of a fluid flowing through a pipe.

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The dislocation climb is least affected by

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A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudnal strain = 0.8, then the magnitude of thickness strain is

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Two fluids of density ρ1 and ρ2 are flowing at velocity V1 and V2 respectively through smooth pipes of identical diameter and pressure per unit length. When the friction factor is same, the ratio ρ1 and ρ2 is equal to

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. . . . . . . . fiber length is necessary for effective strengthening and stiffening of the composite material.

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In electrical resistance welding, cleaning of metals to be welded is

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Soldering clearance is given for brass is

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In thermit welding heat is generated from

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The minimum stress required to move a dislocation is called

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In hot rolling, Aluminium alloys . . . . . . . . mills are used

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How much is the extrusion ratio for Aluminium?

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What is role of matrix in composite

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What are the factors caused for arc blow?

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