Q181
Open questionWhich of the following metal is used in making electrical resistance wire for electric furnaces and heating elements?
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Engineering Materials
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Q182
Open questionIn the lower part of the blast furnace (zone of fusion), the temperature is
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Q183
Open questionThe heat treatment process used for softening hardened steel is
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Q184
Open questionWhich of the following impurity in cast iron makes it hard and brittle?
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Q185
Open questionAn engineer's hammer is made of
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Q186
Open questionThe alloying element which can replace tungsten in high speed steels is
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Q187
Open questionGrey cast iron
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Q188
Open questionWhich of the following element results in presence of free graphite in C.I.?
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Q189
Open questionThe percentage carbon content in wrought iron is about
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Q190
Open questionAge-hardening is related with
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Q191
Open questionThe lower critical point for all steels is
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Q192
Open questionTensile strength of steel can be safely increased by
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Q193
Open questionBasic constituents of Monel metal are
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Q194
Open questionSteel with __________ carbon is known as hypo-eutectoid steel.
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Q195
Open questionIn spheroidising process, the steel is
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Q196
Open questionLead is poured into the joint between two pipes. These pipes may be made of
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Q197
Open questionConstantan an alloy used in thermocouples is an alloy of
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Q198
Open questionThe hardness of steel increases if it contains
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Q199
Open questionGamma-iron occurs between the temperature ranges of
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Q200
Open questionDelta-iron occurs between the temperature ranges of
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