Environmental/Mat. Sci Flashcards
the ratio of linear stress to linear strain
A. Young’s Modulus
B. Shear Modulus
C. Modulus of Rigidity
D. None of the above
Young’s Modulus
the ratio of shear stress to shear strain
A. Young’s Modulus
B. Bulk Modulus
C. Modulus of Rigidity
D. None of the above
Modulus of Rigidity
What are considered as the “building blocks” for engineering materials
A. Atoms
B. Elements
C. Matters
D. Compounds
Atoms
What are the major classes of engineering materials?
A. Metals, Ceramics, and Semiconductors
B. Polymers, Metals, and composites
C. Metals, Ceramics, Polymers, and Semiconductors
D. Metals, Ceramics, Polymers, Semiconductors and Composites
D. Metals, Ceramics, Polymers, Semiconductors and Composites
The engineering materials known as “plastics” are more correctly called
A. Polyvinyl Chloride
B. Polymers
C. Polyethylene
D. Mors
Polymers
What physical property of a material that refers to the temperature at which ferromagnetic materials can no longer be magnetized by outside forces?
A. Melting point
B. Thermal Conductivity
C. Thermal expansion
D. Curie point
Curie point
What physical property of a material refer 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.
A. Specific Heat
B. Latent Heat
C. Heat of fusion
D. Heat of fission
Specific Heat
What mechanical property of a material refers to the resistance to plastic deformation?
A. Rigidity
B. Plasticity
C. Ductility
D. Hardness
Hardness
What chemical property of a material which refers to its ability to resist deterioration by chemical or electrochemical reactions with environment?
A. Stereo specificity
B. Corrosion resistance
C. Conductivity
D. Electrical Resistance
Corrosion resistance
What is the amount of energy required to fracture a given plume of materials?
A. Impact strength
B. Endurance limit
C. Creep strength
D. Stress rupture strength
Impact strength
What mechanical property of a material which is a time-dependent permanent strain under stress?
A. Elongation
B. Elasticity
C. Creep
D. Rupture
Creep
What refers to the stress at which a material exhibits a specified deviation from proportionality of stress and strain?
A. Tensile strength
B. Shear strength
C. Yield strength
D. Flexural strength
Yield Strength
The greatest stress which a material is capable of withstanding without a deviation from acceptable of stress to strain is called
A. Elongation
B. Proportional Limit
C. Yield point
D. Elastic Limit
Proportional limit
What is a substance that attracts pieces of iron?
A. Conductor
B. Semiconductor
C. Magnet
D. Semimetal
Magnet
Which of the following materials has permeability slightly less than that of free space?
A. Paramagnetic materials
B. Non-magnetic materials
C. Ferromagnetic materials
D. Diamagnetic materials
Diamagnetic materials
What is defined as an aloy of iron and carbon with the carbon being restricted within certain concentration limits?
A, Steel
B. Wrought Iron
C. Cast iron
D. Tendons
Steel
What type of steel has carbon as its principal hardening agent?
A. Alloy steel
B. Stainless steel
C. Galvanized steel
D. Carbon steel
Carbon steel
What is the most common alloying ingredient in copper?
A. Brass
B. Zinc
C. Nickle
D. Aluminum
Zinc
What is the most undesirable of all the elements commonly found in steels?
A. Sulfur
B. Phosphorus
C. Silicon
D. Manganese
Phosphorus
What refers to the removal of zinc from brasses?
A. Dezincification
B. Graphitization
C. Stabilization
D. Dealloying
Dezincification
The term “brass” is very commonly used to designate any alloy primarily of:
A. Copper and zinc
B. Aluminum and iron
C. Copper and aluminum
D. Zinc and nickel
Copper and zinc
The term “bronze” is used to designate any alloy containing:
A. Copper and zinc
B. Copper and aluminum
C. Copper and nickel
D. Copper and tin
Copper and tin
What is the most abundant metal in nature?
A. Aluminum
B. Steel
C. Iron
D. Copper
Aluminum
What is another term for tampering?
A. Recryztalization
B. Annealing
C. Spheroidizing
D. Drawing or toughening
drawing or toughnening