Engineering Material Science 1

What physical property of a material that refers to the rate of heat flow per unit time in a homogenous material under steady-state conditions per unit are, per unit temperature gradient in a direction perpendicular to area?

What is a coal that has been previously burned in an oxygen-poor environment?

What type of steel has 0.8% carbon and 100% pearlite?

What is the purpose of molybdenum in steel alloying?

What types of materials behave like iron when placed in a magnetic field?

What field of study encompasses the procurement and production of metals?

What is the most common alloying ingredient in copper?

What is the resistance of a material to plastic deformation?

What group of steels are molybdenum high-speed steels?

What is the common reinforcement for polymer composites?

Which of the following statements is NOT true?

What physical property of a material refers to the amount of weight gain (%) experienced in a polymer after immersion in water for a specified length of time under a controlled environment?

What is a combination of two or more materials that has properties that the components materials do not have by themselves?

Iron is said to be abundant in nature. About how many percent of the earth’s crust is iron?

By definition, a rubber is a substance that has at least _____ elongation in tensile test and is capable of returning rapidly and forcibly to its original dimensions when load is removed.

What mechanical property of a material refers to the resistance to plastic deformation?

What refers to the tendency for polymers and molecular materials to from with an ordered, spatial, three-dimensional arrangement of monomer molecules?

What is the ratio of the maximum load in a tension test to the original cross-sectional area of the test bar?

The engineering materials known as “plastics” are more correctly called ____________.

What is prefix in steel identification means it is made in an electric furnace?

What refers to the tin mill steel, without a coating?

What is a reference sheet for the elements that can be used to form engineering materials?

What combination of elements has high electrical resistance, high corrosion resistance, and high strength at red hear temperatures, making it useful in resistance heating?

What type of steel has carbon as its principal hardening agent?

The use of acids to remove oxides and scale on hot-worked steels is known as_______.

What is a polymer production process that involves forming a polymer chain containing two different monuments?

What is the maximum stress below which a material can theoretically endure an infinite number of stress cycles?

Which of the following is a natural magnet?

What is a method of forming polymer sheets or films into three-dimensional shapes in which the sheet is clamped on the edge, heated until it softens and sags, drawn in contact with the mold by vacuum, and cooled while still in contact with the mold?

What is the defined by ASTM as a material that contains as an essential ingredient an organic substance of large molecular weight, is solid in its finished state, and some stage in its manufactured or in its processing into finished articles, can be shaped by flow?

What is a combination of one or more metals with a nonmetallic element?

What ASTM test for tension is designated for plastics?

What is the process of heating a hardened steel to any temperature below the lower critical temperature, followed by any desired rate of cooling?

Steels that are used for axles, gears, and similar parts requiring medium to high and strength are known as?

In what special refining process of steel where molten metal is poured down a tundish (chute) into an ingot mold?

What physical property of a material refers to the temperature at which a polymer under a specified load shows a specified amount of deflection?

What parameter is defined as the temperature at which the toughness of the material drops below some predetermined value, usually 15ft-lb?

What impurity in steel can cause “red shortness”, which means the steel becomes unworkable at high temperature?

What is defined as an alloy of iron and carbon, with the carbon being restricted within certain concentration limits?

What is defined as an intimate mechanical mixture of two or more phases having a definite composition and a definite temperature of transformation within the solid state?

Which of the following cast irons is heat-treated for ductility?

What dimensional property of a material refers to the deviation from edge straightness?

What are the major classes of engineering materials?

What ASTM test for shear strength is designated for plastics?

What is a method of casehardening involving diffusion in which the steel to be casehardened is machined, heat-treated, placed in an air-tight box and heated to about 1000oF?

What do you call earth and stone missed with the iron oxides?

What is a substance that attracts piece of iron?

What is the most undesirable of all the elements commonly found in steels?

What is the generic name of class of polymer which is commercially known as “nylon”?

What dimensional property of a material refers to a wavelike variation from a perfect surface, generally much wider in spacing and higher in amplitude than surface roughness?

What is the lowest-temperature diffusion-hardening process and does not require a quench?

What refers to the stress at which a material exhibits a specified deviation from proportionality of stress and strain?

What prefix in steel identification means composition varies from normal limits?

What letter suffix steel identification means that it is steel with boron as an alloying element?

What physical property of a material refers to the highest potential difference (voltage) that an insulting material of given thickness can withstand for a specified time without occurrence of electrical breakdown through its bulk?

Which of the following fluids conducts electricity?

The following statements are true except one. Which one?

What is the most popular steel refining process or technique which involves casting of steel from the BOF or electric furnace into cylindrical ingots?

What group of steel are water-hardened tool steels?

What do you call a polymer without additives and without blending with another polymer?

What is the effect of silicon in cast iron?

What is the effect of aluminum in cast iron?

What is the advantage of quench hardening?

What is the effect if manganese in cast iron?

What ASTM test for compression is designated for plastic?

What is a process of forming continuous shapes by forcing a molten polymer through a metal die?

What physical property of a material refers to the ratio of the amount of heat required to raise the temperature of a unit mass of a substance 1 degree to the heat required to raise the same mass of water to 1 degree.

Low-quality steels with an M suffix on the designation intended for non-structural application is classified as ____________.

What is a process of producing a hard surface in a steel having a sufficiently high carbon content to respond to hardening by a rapid cooling of the surface?

What is a measure of rigidity?

Which cast iron is hard and wear resistant?

What chemical property of a material which refers to its ability to resist deterioration by chemical or electrochemical reactions with environment?

What do you call metals reinforced by ceramics or other materials, usually in fiber form?

Some polymetric materials such as epoxies are formed by strong primary chemical bonds called ________.

What materials has permiabilities slightly greater than of free space?

What refers to the casehardening process by which the carbon content of the steel ear the surface of a part is increased?

What is the amount of energy required to fracture a given volume of material?

What is obtained by repeatedly loading a specimen at given stress levels until it fails?

in tensile testing, the increase in the gage length measured after the specimen fractures, within the gage length is called _______.

Which of the materials have very high permiabilities?

What term is used to describe a polymer that has rubberlike properties?

Which of the following cast irons is a high-carbon-silicon alloy?

What typical penetrator is used in Brinell hardness test?

What is the ASTM tension testing designation for standard methods for steel products?

Galvanized steel are steel products coated with _________.

Which of the following materials has permeability slightly less than that of free space?

What mechanical property of a material which is a time-dependent permanent strain under stress?

A large molecule with two alternating mers is called as _______.

Wood is composed of chains of cellulose molecules bonded together by another natural polymer called ________.

Which of he following is a requirement for hardening a steel?

Which of the following cast irons is a high-carbon, iron-carbon-silicon alloy?

What is considered as the general purpose oldest type and widely used cast iron?

What physical property of a material that refers to the temperature at which ferromagnetic materials can no longer be magnetized by outside forces?

What physical property of a material that refers to the point at which a material liquefies on heating or solidifies on cooling?

The greatest stress which a material is capable of withstanding without a deviation from acceptable of stress to strain is called _______.

What mechanical property of a material refers to the nominal stress at fracture in a tension test at constant load and constant temperature?