Q461
Open questionWhich of the following contains the least percentage of carbon ?
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Q462
Open questionWhich of the following commonly used condenser tube materials has the lowest thermal conductivity?
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Q463
Open questionThe main constituent of bones is
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Q464
Open questionThe tensile load-elongation curve of a metal does not describe
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Q465
Open questionOther parameters remaining same, the recrystallisation temperature of an alloy is lowered, when
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Q466
Open questionThe order of a chemical reaction
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Q467
Open questionFibre reinforced plastic (FRP) are
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Q468
Open questionFactor of safety in machine design is defined as the ratio of ultimate stress to __________ stress.
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Q469
Open questionWhich of the following does not lower the surface tension of liquids ?
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Q470
Open questionThermal expansion of solid is employed in the temperature measurement by a
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Q471
Open questionThree elastic constants for a completely anisotropic elastic material which follows the Hooke's law are young's modulus, elastic limit stress and yield stress. Which of the following properties is most sensitive to increase in strain rate ?
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Q472
Open questionStrain hardening effect in a metal subjected to cold working is due to the __________ mechanism.
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Q473
Open questionStrain hardening effect in metals subjected to cold working is due to the __________ mechanism.
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Q474
Open questionWhich of the following processes follows the hardening process for reducing the hardening strains & increasing the toughness of the steel part?
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Q475
Open questionWhich of the following exemplifies resemblence with the extrusion process ?
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Q476
Open questionYoung's modulus of elasticity of a material is the slope of the initial linear portion of the stress-strain curve. It decreases ap-preciablyby
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Q477
Open questionWhich of the following relatively employs the highest heat transfer surface area in a high pressure boiler ?
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Q478
Open questionOut of the following __________ iron has the best capability to bear sudden & excessive shocks.
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Q479
Open questionThe dew point of moist air becomes __________ with decrease in its relative humidity.
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Q480
Open questionCarbon percentage in high speed steel tool material is 0.6 to 1.0. The hardness of carbon tool steels is increased, when it is alloyed with
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