are probably more deep.docx

FUEL

The _____ is a material which when once raised to its ignition temperature continues to burn if sufficient is available.

CLP

________- defines a nanomaterial as a: 'material with any external dimension in the nanoscale (size range from approximately 1- 100 nm) or having the internal structure or surface structure in the nanoscale.

OXYGEN

The fuel is a material which when once raised to its ignition temperature continues to burn if sufficient is available ____

COPPER

________- is one of the earliest metals discovered by man.

SILICON

________- This is one of the principal deoxidizers used in steel making.

MELAMINE

________- What monomer is a polymer of Teflon, and is its use for non- stick cookware plastics.

STARCH

________- is made up by plants for them to store energy.

LITHIUM

________- is the lightest among commonly used metals and has a density of 1.7 g /cc.

PVC

________- has chlorine attached to the all- carbon backbone.

GOLD

________- is a soft, heavy, rare metal, and is resistant to corrosion.

KEROSENE

________- is useful for jets, engines, aircraft, rockets, and lamps.

PHOSPHOROUS

________- This increases the strength and hardness and decreases the ductility and notch impact toughness of a steel.

MOLYBDENUM

________- This increases the hardenability and enhances the creep resistance of low- alloy steels.

NANOTECH

________- products that are on the market today are mostly gradually improved products.

BLUE WATER GAS

________- is a blast of air and iş forced through a fuel bed and steam is passed through forming.

BRASS

________- is the most common alloy of Cu- it's an alloy with Zn.

COMBUSTIBLES

________- The materials which evolve heat after burning is /are called.

RHOMBOHEDRON

________- A ­­ resembles in appearance a cube which is poised upright upon one corner and has been either flattened or elongated along an axis which runs diagonally from corner to corner through the center.

HOLOMORPHIC

________- The class which possesses the highest possible symmetry within each crystal system is:

MINIATURIZATION

________- is well known in the manufacturing and microelectronics industries.

TRUE

Applications of some titanium alloys are marine and chemical processing equipment. TRUE OR FALSE?

COMBUSTION

________- This is a commonly employed industrial process for heat generation.

POLYISOPRENE

________- This is an example of an elastomer.

OIL

________- has been used for 5, 000 to 6, 000 years where they use it as a fuel.

UNIT CELL It

________ is the smallest group of particles in the material that constitutes the repeating pattern.

GENES

________- make all the enzymes needed to carry out the reaction in our bodies.

BRAVAIS

________ The repeating patterns of the crystalline lattice are said to be located at the points of the lattice.

REACTIVITY

________- As surface area per mass of a material increases, a greater amount of the material can come into contact with surrounding materials, thus affecting.

DITETRAGONAL PYRAMID

________- What is the crystal class /crystal form if it has a crystal system of a tetragonal system, and a symmetry of a class of.

ATOM

________ is the smallest constituent of ordinary matter that has the properties of a chemical element.

SULFUR

________- This decreases ductility and notch toughness, whereas weldability decreases and is found in sulfide conclusions.

CRYSTALS

________ are minerals formed underground from three- dimensional repeating patterns of atoms.

BRONZE

________- Copper alloys containing tin, lead, aluminum, silicon and nickel are classified as.

THERMOSETS

These are polymers which change irreversibly into hard and rigid materials on heating and can not be reshaped.

THERMAL

________- A coal- fired power station or coal power plant is a power station.

DIESEL

________- is common for vans, rucks, and heavy equipment.

CU BE

________- alloys are heat treatable, it is ductile, yeldable and machinable, also resistant to non- oxidizing acids.

SILVER

________- is a soft, white lustrous metal, it exhibits the highest electrical conductivity.

PRISM

________- A is composed of a set of 3, 4, 6, 8, or 12 geometrically equivalent faces, which are all parallel to the same axis.

PARALLELOHEDRON

________- The crystal form is also called a pinacoid.

TITANIUM

________- has a density of 4.51 g /cc.

LEO BAECKELAND

________- Phenol resins were developed by the chemist.

COMPLEX QUANTUM

________- mechanical models are required to predict the evolution of such properties with particle size, and typically very.

SYNTHETIC RUBY

________ has been used for making hard bearings in watches and other mechanical instruments.

COAL

________- The is usually pulverized and then burned in a boiler.

ELEMENTS

________- may be classified as either metals or nonmetals based on their properties.

TOP- DOWN

The " "approach in which nanostructures are generated from breaking up bulk materials

0 and 50 %

\- In specific cases and where warranted by concerns for the environment, health, safety, or competitiveness the number size distribution threshold of ________ may be replaced by a threshold between.

FCC

________- A Cubic Closest Packing is identical to unit cell structure.

DIAGONAL

________- For a Body- centered Cubic Lattice, atoms touch along a /the through the center of the cube not along the edge.

TRUE

High coordination number can give you a greater packing efficiency? TRUE OR FALSE?

DIAGONAL

For a Body-centered Cubic Lattice, atoms touch along a/the through the center of the cube not along the edge

12

For a Face-centered Cubic Lattice, it has a coordination number of

12

For a Hexagonal Closest Packing, it has a coordination number of

½

For Closest-Packed structures, more efficient packing is achieved by offsetting the second layer by atoms so that the atoms sit in the indentations formed by the atoms

FCC

A Cubic Closest Packing is identical to unit cell structure

ABCABC

For a Cubic Closest Packing, it has a pattern of

ROTATIONAL SYMMETRY

arises when a structural element is rotated a fixed number of degrees about a central point and then repeated

POINT SYMMETRY

This describes the repetition of a motif or structural feature around a single reference point, commonly the center of a unit cell or a crystal

INVERSION SYMMETRY

If a crystal possesses , any line drawn through the origin at the center of the crystal will connect two identical features on opposite sides of the reflection in a point

SIX

Every crystal class is a member of one of the crystal systems

HOLOMORPHIC CLASS

The crystal class which possesses the highest possible symmetry or the highest number of symmetry elements within each system is termed the

120

Minerals of the hexagonal crystal system are referred to as three crystallographic axes which intersect at degrees

TRICLINIC

Mineral species of the class include plagioclase and axinite where these species tend to be of tabular habit

PARALLELOHEDRON

The crystal form is also called a pinacoid

PRISM

A is composed of a set of 3, 4, 6, 8, or 12 geometrically equivalent faces, which are all parallel to the same axis

RHOMBOHEDRON

A ­­ resembles in appearance a cube which is poised upright upon one corner and has been either flattened or elongated along an axis which runs diagonally from corner to corner through the center

HOLOMORPHIC

The class which possesses the highest possible symmetry within each crystal system is

DITETRAGONAL PYRAMID

What is the crystal class/crystal form if it has a crystal system of a tetragonal system, and a symmetry of a class of

FACE-CENTERED LATTICE

A possesses not only lattice points at the corners of the unit cell but also at either the centers of just one pair of faces or else at the centers of all three pairs of faces

CRYSTAL DEFECT

This is the imperfection in the regular geometrical arrangement of the atoms in a crystalline solid

POLYMORPHISM

In materials science, this is the ability of a solid material to exist in more than one form or crystal structure

THREE QUARTERS

Over of the chemical elements that occur naturally on our planets are metals, so it's almost easier to say what metal isnt

ELEMENTS

may be classified as either metals or nonmetals based on their properties

OPAQUE AS A THIN SHEET

One of the physical properties of a metal can be

FORM OXIDES THAT ARE BASIC

One of the chemical properties of a metal can be

STEELS

These are alloys of iron and carbon which may contain other alloying elements

PLAIN CARBON STEELS

has very low content of alloying elements and small amounts of manganese

HIGH CARBON STEELS

This is used in hardened and tempered conditions

SILICON

This is one of the principal deoxidizers used in steel making

MOLYBDENUM

This increases the hardenability and enhances the creep resistance of low-alloy steels

PHOSPHOROUS

This increases the strength and hardness and decreases the ductility and notch impact toughness of a steel

SULFUR

This decreases ductility and notch toughness, whereas weldability decreases and is found in sulfide conclusions

GREY CAST IRON

contains graphite in the form of flakes

TRUE

Cast Irons contain 2.1-4.5 wt.% Carbon? TRUE or FALSE

NODULAR IRON

This type of cast iron has castings that are stronger and much more ductile than grey iron, as the stress concentration points existing at the flake tips are eliminated

WHITE CAST IRON

This type of cast iron is used as a intermediate to produce malleable cast iron

MALLEABLE CAST IRON

This type of cast iron s obtained by heat-treating white iron for a prolonged period that, causes the decomposition of cementite into graphite

GREY CAST IRON

This type of cast iron has excellent damping capacity and wear resistance

CU ALLOYS

Which of the following is a nonferrous metal

COPPER

is one of the earliest metals discovered by man

BRONZE

Copper alloys containing tin, lead, aluminum, silicon and nickel are classified as

CU-BE

alloys are heat treatable, it is ductile, yeldable and machinable, also resistant to non-oxidizing acids

ALUMINUM

is a light metal with a density of 2.7g/cc

TITANIUM

has a density of 4.51 g/cc

TRUE or FALSE

Applications of some titanium alloys are marine and chemical processing equipment

LITHIUM

is the lightest among commonly used metals and has a density of 1.7 g/cc

SILVER

is a soft, white lustrous metal, it exhibits the highest electrical conductivity

GOLD

is a soft, heavy, rare metal, and is resistant to corrosion

PYROXYLIN

Cellulose dinitrate is also called