A.Air, water, oil, fused salt
B.Water, air, fused salt, oil
C.Oil, fused salt, air, water
D.Water, oil, fused alst, air
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- The fastest cooling rate is achieved when steel is quenched in
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- The process of reheating the hardened steel to some temperature below the critical range, followed by any rate of cooling is known as
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- A shpere, a cube and a disc all of the same material, quality and volume are heated to 900K and left in air. Which of these will have the lowest rate of cooling
