81. If a refractory contains high content of silicon, it means refractory is
82. The bond formed by transferring electrons from one atom to another is called
83. Which of the following constituents of steels is softest and least strong?
84. Which of the following property is desirable in parts subjected to shock and impact loads?
85. Crystal structure of a material is, generally, examined by
86. Macrostructure of a material is, generally, examined by
87. Structural steel contains following principal alloying elements
88. The most effective inhibitor of grain growth, when added in small quantities is
89. Monel metal is an alloy of
90. Delta metal is an alloy of
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