Material Sciences MCQ
What kind of materials are hard materials?
Answer
Correct Answer:
Do not lose magnetization easily
Note: This Question is unanswered, help us to find answer for this one
What is another term for free energy?
Answer
Correct Answer:
Energy that is available to do work
Note: This Question is unanswered, help us to find answer for this one
What term is used to describe the study of crack growth?
Answer
Correct Answer:
Fracture mechanics
Note: This Question is unanswered, help us to find answer for this one
What is the term for the amount of flexural stress a material can withstand before breaking?
Answer
Correct Answer:
Flexural strength
Note: This Question is unanswered, help us to find answer for this one
What is the law known as Fick's First Law of Diffusion?
Answer
Correct Answer:
States that the rate of diffusion, or flux, J of a species is proportional to the concentration gradient
Note: This Question is unanswered, help us to find answer for this one
What describes the diffusion of atoms when the concentration is changed with time?
Answer
Correct Answer:
Fick's second law
Note: This Question is unanswered, help us to find answer for this one
What property demonstrates that some materials are ferromagnetic?
Answer
Correct Answer:
Permanent aligned dipoles
Note: This Question is unanswered, help us to find answer for this one
What is interstitial carbon in bcc iron?
Note: This Question is unanswered, help us to find answer for this one
What type of energy is the highest electron energy at 0K?
Note: This Question is unanswered, help us to find answer for this one
What is the limit where stress does not affect fatigue?
Answer
Correct Answer:
Fatigue limit
Note: This Question is unanswered, help us to find answer for this one
What does the term fatigue life refer to?
Answer
Correct Answer:
The number of stress cycles that will cause a fatigue failure
Note: This Question is unanswered, help us to find answer for this one
What does the term engineering stress mean?
Answer
Correct Answer:
Average force divided by the original cross-sectional area
Note: This Question is unanswered, help us to find answer for this one
What can make a strain on a sample?
Answer
Correct Answer:
Change in length of sample
Note: This Question is unanswered, help us to find answer for this one
What does the electron-attracting ability of atoms in compounds mean?
Answer
Correct Answer:
Electronegative
Note: This Question is unanswered, help us to find answer for this one
What is the arrangement of electrons in an atom?
Answer
Correct Answer:
Electron configuration
Note: This Question is unanswered, help us to find answer for this one
What is the term for a material that doesn't break when it is under a load?
Answer
Correct Answer:
Ductility
Note: This Question is unanswered, help us to find answer for this one
What deforms plastic, cracks grow slowly and can stop?
Answer
Correct Answer:
Ductile Materials
Note: This Question is unanswered, help us to find answer for this one
What is the dislocation line?
Answer
Correct Answer:
Dislocation line the line extending along the extra partial plane of atoms in an edge dislocation
Note: This Question is unanswered, help us to find answer for this one
What does the diffusion constant increase with?
Answer
Correct Answer:
Temperature
Note: This Question is unanswered, help us to find answer for this one
What is an example of the movement of molecules from an area of higher concentration to an area of lower concentration?
Answer
Correct Answer:
Diffusion
Note: This Question is unanswered, help us to find answer for this one
What is Diamagnetism?
Answer
Correct Answer:
Induced magnetic dipole in opposite direction of applied magnetic field
Note: This Question is unanswered, help us to find answer for this one
What is the name of the process by which a polymer is created?
Answer
Correct Answer:
Polymerization
Note: This Question is unanswered, help us to find answer for this one
What is the name given to the regular repeatable lattice of the atoms in a material?
Answer
Correct Answer:
Crystal structure
Note: This Question is unanswered, help us to find answer for this one
A solid that is made up of crystals in which particles are arranged in a regular, repeating pattern is called what?
Answer
Correct Answer:
Crystalline
Note: This Question is unanswered, help us to find answer for this one
What occurs when max stress at a point is less than the critical stress?
Answer
Correct Answer:
Crack propagation
Note: This Question is unanswered, help us to find answer for this one
What allows atoms to share electrons in a molecule?
Answer
Correct Answer:
Covalent bond
Note: This Question is unanswered, help us to find answer for this one
What is the term used to describe the number of atoms that are adjacent to a given atom?
Answer
Correct Answer:
Coordination number
Note: This Question is unanswered, help us to find answer for this one
What type of test is performed to determine if a material will withstand a specified load?
Answer
Correct Answer:
Charpy test
Note: This Question is unanswered, help us to find answer for this one
What does the item "Ceramic Impurities" mean?
Answer
Correct Answer:
Must maintain charge neutrality
Note: This Question is unanswered, help us to find answer for this one
What type of material is ceramics?
Answer
Correct Answer:
Unreactive and do not corrode
Note: This Question is unanswered, help us to find answer for this one
What does the name positive charge indicate?
Answer
Correct Answer:
Positively charged ion
Note: This Question is unanswered, help us to find answer for this one
What type of metal is added to the anode?
Note: This Question is unanswered, help us to find answer for this one
What type of dislocation causes the slip?
Note: This Question is unanswered, help us to find answer for this one
What is the name of the vector which represents the direction and magnitude of the slip caused by a single dislocation?
Note: This Question is unanswered, help us to find answer for this one
What type of fracture does not require significant deformation of the specimen before the crack is visible?
Answer
Correct Answer:
Brittle fracture
Note: This Question is unanswered, help us to find answer for this one
What is a branched polymer?
Answer
Correct Answer:
A polymer having a molecular structure of secondary chains that extend from the primary main chains
Note: This Question is unanswered, help us to find answer for this one
What is defined as bonding energy?
Answer
Correct Answer:
Net energy of attraction
Note: This Question is unanswered, help us to find answer for this one
What is the Bohr atomic model?
Answer
Correct Answer:
Electrons orbiting the nucleus in well defined paths
Note: This Question is unanswered, help us to find answer for this one
What is the name of the phase formed by quenching steel?
Note: This Question is unanswered, help us to find answer for this one
What does an austenite have as a structure?
Answer
Correct Answer:
Face-centred cubic
Note: This Question is unanswered, help us to find answer for this one
What is the name of the structure formed when iron is between 912 ° and 1,394 °C?
Answer
Correct Answer:
Austenite
Note: This Question is unanswered, help us to find answer for this one
What is the name of the property that expresses the number of atomic units in a selected unit cell?
Answer
Correct Answer:
Atomic packing factor
Note: This Question is unanswered, help us to find answer for this one
What is the atomic number of a nucleus of an element?
Answer
Correct Answer:
Number of protons
Note: This Question is unanswered, help us to find answer for this one
What is the atomic mass unit used to measure?
Answer
Correct Answer:
The mass of particles in atoms
Note: This Question is unanswered, help us to find answer for this one
What is a property of antiferromagnets?
Answer
Correct Answer:
Alignment of magnetic dipoles
Note: This Question is unanswered, help us to find answer for this one
What is the purpose of annealing?
Answer
Correct Answer:
To soften a metal or alloy
Note: This Question is unanswered, help us to find answer for this one
What property does the typical rock exhibit?
Answer
Correct Answer:
Anisotropy
Note: This Question is unanswered, help us to find answer for this one
What type of ion is an anion?
Answer
Correct Answer:
Negatively charged
Note: This Question is unanswered, help us to find answer for this one
What type of polymer is an alternating sequence of monomers?
Answer
Correct Answer:
Alternating copolymer
Note: This Question is unanswered, help us to find answer for this one
What type of steel contains carbon and other metals?
Answer
Correct Answer:
Alloy steel
Note: This Question is unanswered, help us to find answer for this one
What is a mixture made up of two or more metals?
Note: This Question is unanswered, help us to find answer for this one
What is the term for the ability of a substance to exist in more than one phase in the liquid state?
Answer
Correct Answer:
Allotropy
Note: This Question is unanswered, help us to find answer for this one
What is the amount of energy needed to get a reaction started?
Answer
Correct Answer:
Activation energy
Note: This Question is unanswered, help us to find answer for this one
What can HSLA alloys be used for?
Answer
Correct Answer:
Transportation-equipment components
Note: This Question is unanswered, help us to find answer for this one
What are all the forms that HSLA steels can be used in?
Answer
Correct Answer:
Wrought forms
Note: This Question is unanswered, help us to find answer for this one
What are LSLA steels available in?
Answer
Correct Answer:
All standard wrought forms
Note: This Question is unanswered, help us to find answer for this one
What does HSLA stand for?
Answer
Correct Answer:
High-strength low-alloy
Note: This Question is unanswered, help us to find answer for this one
What is the increase in length of a rubber specimen because of tensile force being applied to the specimen?
Answer
Correct Answer:
Elongation
Note: This Question is unanswered, help us to find answer for this one
What are the three factors that affect elongation?
Answer
Correct Answer:
Hardness, tensile strength, and modulus
Note: This Question is unanswered, help us to find answer for this one
Once the yield point is passed, what will be permanent and non-reversible?
Answer
Correct Answer:
Deformation
Note: This Question is unanswered, help us to find answer for this one
What is the term for a point in a material that it will be permanently deformed?
Answer
Correct Answer:
Yield strength
Note: This Question is unanswered, help us to find answer for this one
What is the definition of yield strength?
Answer
Correct Answer:
The stress at which a material begins to deform plastically
Note: This Question is unanswered, help us to find answer for this one
Along with complex ions, what do cyclic molecules form?
Answer
Correct Answer:
Stable complex ions
Note: This Question is unanswered, help us to find answer for this one
What group of elements are referred to as Transition Metal?
Answer
Correct Answer:
Groups 3 to 12
Note: This Question is unanswered, help us to find answer for this one
What is a typical example of a refractory metal?
Note: This Question is unanswered, help us to find answer for this one
What is an internal ridge or rim?
Note: This Question is unanswered, help us to find answer for this one
What type of strength measures the force required to pull something to the point where it breaks?
Answer
Correct Answer:
Tensile Strength
Note: This Question is unanswered, help us to find answer for this one
What is a crucible used for?
Answer
Correct Answer:
Metal, glass, and pigment production
Note: This Question is unanswered, help us to find answer for this one
What can a crucible withstand?
Answer
Correct Answer:
Extremely hot temperatures
Note: This Question is unanswered, help us to find answer for this one
What is a phenomenon of exactly zero electrical resistance?
Answer
Correct Answer:
Superconductivity
Note: This Question is unanswered, help us to find answer for this one
What does the insulating oxide layer form?
Answer
Correct Answer:
Dielectric
Note: This Question is unanswered, help us to find answer for this one
What is the main use of tantalum?
Answer
Correct Answer:
Tantalum Capacitor
Note: This Question is unanswered, help us to find answer for this one
What type of hardness is not measured by the ASTM?
Answer
Correct Answer:
Scratch hardness
Note: This Question is unanswered, help us to find answer for this one
What is the third property of a material that can be measured?
Note: This Question is unanswered, help us to find answer for this one
What are the different measurements of hardness?
Answer
Correct Answer:
Scratch hardness, indentation hardness, and rebound hardness
Note: This Question is unanswered, help us to find answer for this one
What is ASTM's focus?
Answer
Correct Answer:
Voluntary consensus technical standards
Note: This Question is unanswered, help us to find answer for this one
What is ASTM's previous name?
Answer
Correct Answer:
American Society for Testing and Materials
Note: This Question is unanswered, help us to find answer for this one
What may be the last two digits in UNS?
Answer
Correct Answer:
Variations
Note: This Question is unanswered, help us to find answer for this one
What type of alloy does "S" stand for?
Answer
Correct Answer:
Stainless steel alloys
Note: This Question is unanswered, help us to find answer for this one
What is the UNS an alloy designation system widely accepted in?
Answer
Correct Answer:
North America
Note: This Question is unanswered, help us to find answer for this one
What does UNS stand for?
Answer
Correct Answer:
Unified numbering system
Note: This Question is unanswered, help us to find answer for this one
How are alloy mixtures made?
Answer
Correct Answer:
By various routes
Note: This Question is unanswered, help us to find answer for this one
What are alloys made up of?
Answer
Correct Answer:
A metal with other elements
Note: This Question is unanswered, help us to find answer for this one
What is an example of an alteration that occurs during annealing?
Answer
Correct Answer:
Ductility
Note: This Question is unanswered, help us to find answer for this one
What is the critical temperature for annealing?
Note: This Question is unanswered, help us to find answer for this one
What type of process would be used to form the metal if the temperature of the metal is at or below the recrystallization temperature?
Answer
Correct Answer:
Hot Rolling
Note: This Question is unanswered, help us to find answer for this one
What is the process of heat treating used to increase the toughness of iron-based alloys?
Answer
Correct Answer:
Tempering
Note: This Question is unanswered, help us to find answer for this one
Tempering is usually performed after what?
Answer
Correct Answer:
Hardening
Note: This Question is unanswered, help us to find answer for this one
