mechanical-engineering-engineering-materials Related Question Answers
126. When a medium carbon steel is heated to coarsening temperature,
128. In process annealing, the hypo-eutectoid steel is
129. Delta-iron occurs between the temperature range of
130. According to Indian standard specifications, SG 400/15 means
131. White cast iron has
132. Iron-carbon alloys containing carbon __________ 4.3% are known as hyper-eutectic cast irons.
133. The stiffness is the ability of a material to resist deformation under stress.
134. The acidic bessemer process is suitable for producing steel from pig iron containing large quantities of phosphorus.
135. In low carbon steels, presence of small quantities of sulphur improves
137. The aluminium alloy made by melting aluminium with 2 to 10% magnesium and 1.75% copper is called
138. Y-alloy contains
139. The steel scrap added in the charge of cupola controls the grade of cast iron produced.
140. The main alloying elements high speed steel in order of increasing proportion are
141. Which of the following metal is used in making electrical resistance wire for electric furnaces and heating elements?
142. Which of the following metal is used for nuclear energy?
143. The bond formed by transferring electrons from one atom to another is called
144. Which of the following property is desirable in parts subjected to shock and impact loads?
146. Connecting rod is, usually, made from
147. Which of the following inpurity in cast iron makes it hard and brittle?
148. There are fourteen atoms in a unit cell of
150. In spheroidising process, the steel is
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