Engineering Materials Questions

• Crystal structure of a material is, generally, examined by
• The coke in the charge of blast furnace
• The quenching of steel from the upper critical point results in a fine grained structure.
• Closed packed hexagonal space lattice is found in
• Tungsten when added to steel __________ the critical temperature.
• The property of a material due to which it breaks with little permanent distortion, is called
• Free carbon in iron makes the metal
• Thermoplastic materials are those materials which
• Which of the following has a fine gold colour and is used for imitation jewellery?
• The hardness and tensile strength in austenitic stainless steel can be increased by
• The unit cells
• A material is said to be allotropic, if it has
• The hardness is the property of a material due to which it
• Which of the following process of steel making is in operation at Tata Iron and Steel Works, Jamshedpur?
• The charge is fed into the blast furnace through the
• The steel produced by bessemer or open hearth process is __________ to that produced by L-D process.
• Nodular cast iron is produced by adding __________ to the molten cast iron.
• Silicon when added to copper improves
• The hardness of steel increases if it contains
• Brass is an alloy of