Engineering Materials Quiz

A type of iron where carbon is present as free graphite, giving it a grey appearance.

A non-metallic element that can be combined with iron in ores.

The process where iron is separated from its ore by heating it with carbon monoxide, a product of coke (a form of carbon made from coal).

A form of carbon made from coal.

The process where iron is separated from its ore by heating it with carbon monoxide.

A measure of how resistant a material is to being compressed.

A measure of how resistant a material is to being stretched or pulled.

A measure of a material's ability to resist shearing forces, which are forces that act parallel to a surface.

Metals that do not have iron as their primary constituent.

The process of choosing the most suitable material for a specific engineering application, considering factors like availability, cost, and performance.

Characteristics of a material that describe its behavior under different environmental conditions, such as temperature, pressure, or chemical exposure.

The ability of a material to conduct heat energy.

The ability of a material to conduct electrical current.

The temperature at which a solid material transitions into a liquid state.

The characteristics of a material that describe its ability to withstand forces and stresses.

The resistance of a material to deformation under applied stress.

A type of steel used for small parts that require a surface hardening treatment like cyaniding or carbonitriding.

A type of steel preferred for parts where machining and producing a smooth finish are important.

A medium carbon steel suitable for bolts, studs, and other heat-treated components requiring moderate strength.

A steel used for heat-treated parts that require good strength but are not subjected to high stress or wear.

A low carbon steel often used for parts that require good ductility and weldability.

Steels containing 1 to 2% silicon and 0.1 to 0.4% carbon, used for electrical machinery, valves in internal combustion engines, springs, and corrosion resistance.

A metal that contributes to increased hardness and strength at high temperatures. Cobalt also increases residual magnetism and coercive magnetic force in steel for magnets.

A metal often used in combination with chromium and manganese to create molybdenum steel. These steels exhibit high tensile strength and are used in demanding applications such as airplanes and automobiles.

A standard used in India to classify low and medium alloy steels. The designation includes the carbon content and alloying elements with their percentages represented by letters followed by numbers.

The average percentage carbon content in an alloy steel, multiplied by 100.

The chemical symbol for each alloying element is followed by a number representing its average percentage content multiplied by a corresponding factor. Different elements have different multiplying factors.

The chemical symbols and figures are listed in the designation in descending order based on their percentage content.

The composition and applications of some low and medium alloy steels are specified in the Indian standard IS: 1570-1961.

Indian standard IS: 1570 (Part-I)-1978 (Reaffirmed 1993) defines a system for designating wrought steels based on letter symbols and numerical values, indicating either minimum tensile strength or yield strength.

Specifies the minimum tensile strength of the steel, measured in N/mm2. For example, 'Fe 290' implies a steel with a minimum tensile strength of 290 N/mm2.

Specifies the minimum yield strength of the steel, measured in N/mm2. For instance, 'Fe E 220' refers to a steel with a yield strength of 220 N/mm2.

These standards cover steels intended for general engineering purposes, indicating their uses and properties.

A measure of the force needed to permanently deform a material. It is often a lower value than tensile strength and is crucial for preventing permanent bending.

Indicates how much a steel can stretch before breaking, expressed as a percentage of its original length.

Specifies the minimum percentage of elongation required for a steel meeting the standard, ensuring optimal strength.

This steel is used to make components that need medium-high tensile strength, such as gears and shafts.

This steel is used in applications requiring high tensile strength, like bolts and studs.

This steel is used for general engineering components like crankshafts and axles, where good strength is necessary.

Used for making suspension springs in automobiles, this steel needs to be both strong and flexible.

Steel alloys are specifically designed for specific uses, and their properties are tailored to the demands of the application.

The composition of steel alloys is designed to provide specific properties, such as high tensile strength, wear resistance, or ductility.

The properties of steel, such as its strength and toughness, are determined by the specific elements present in the alloy.

The use of steel in engineering is based on selecting the right type of steel for the application, considering its properties and cost.