Chemical Engineering Basics Maraging steels derive their strength from the following mechanism: A fine, highly dislocated and strong martensite Fine dispersions of intermetallics of Fe, Ni, Ti etc Fine dispersions of alloy carbides in a ferrite matrix Fine dispersions of Fe₃ C nucleated on dislocations in austenite A fine, highly dislocated and strong martensite Fine dispersions of intermetallics of Fe, Ni, Ti etc Fine dispersions of alloy carbides in a ferrite matrix Fine dispersions of Fe₃ C nucleated on dislocations in austenite ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Oxyacetylene reducing flame is used while carrying out welding on Alloy steel High carbon steel Grey cast iron Mild steel Alloy steel High carbon steel Grey cast iron Mild steel ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Carbon is present in the form of __________ in grey cast iron. Flakes Nodular aggregates of graphite Cementite Spheroids Flakes Nodular aggregates of graphite Cementite Spheroids ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The process of removal of scale formed during hot rolling of steel is termed as Skimming Pickling Shot blasting Descaling Skimming Pickling Shot blasting Descaling ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics For the same heat input & compression ratio, efficiency of Otto cycle is higher than that of diesel cycle, because in Otto cycle. Heat rejection is lower Expansion & compression are isentropic Combustion is at constant volume Maximum temperature is higher Heat rejection is lower Expansion & compression are isentropic Combustion is at constant volume Maximum temperature is higher ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Compression ratio of an I.C. engine is the ratio of the Clearance volume to the volume swept by piston per stroke Volume of air in cylinder before compression to that after compression None of these Pressure after compression to that before compression Clearance volume to the volume swept by piston per stroke Volume of air in cylinder before compression to that after compression None of these Pressure after compression to that before compression ANSWER DOWNLOAD EXAMIANS APP
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