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Nano Technology Bank QS

A visually engaging illustration of nanotechnology concepts, depicting nanoparticles, nanowires, and nanomaterials with vibrant colors and scientific elements in the background.

Nano Technology Quiz

Test your knowledge on the fascinating world of nanotechnology with this comprehensive quiz! Designed for enthusiasts and professionals alike, this quiz will challenge your understanding of nanoparticles, nanomaterials, and various related processes.

What to expect:

30 engaging questions on nanoengineering and material properties
Multiple choice format for easy navigation
Instant scoring to see how you performed

143 Questions36 MinutesCreated by ExploringMatter42

-A nanoparticle is a small particle that ranges between 1-100µm in size.

True

False

- Nanoplate is a material that has two dimensions less than 100nm

True

False

-Nano particle is a material that has three dimensions less than 100nm.

True

False

A nano wire is a material that has one of its dimensions in the nano scale.

True

False

Nano filler are added to the material to inhibit thermal conductivity and mechanical strength.

True

False

Nanoengineering is the study of nanomaterials, properties, and related phenomena.

True

False

-The properties of nanoscale materials differ from the properties of the same materials in bulk size due to decrease relative surface area and quantum effect

True

False

Ball milling technique represents top-down synthesis approach of nanomaterial.

True

False

The sputtering process is a chemical vapor deposition process in which, materials are deposited onto a particular surface by ejecting atoms from that material.

True

False

Sputtering is a technique used for crafting nanoscale pattern

True

False

Thermal decomposition is the process that employs heat to dissociate chemical bonds in a material.

True

False

- Thermal ablation is a process that uses for creating porous nanostructure with controlled porosity

True

False

Laser ablation technique represents bottom-up synthesis approach of nanomaterial.

True

False

The ball milling technique, the energy transfer to the powder from steel balls depend only on: The time of milling.

True

False

At low laser flux, the material converted to plasma.

True

False

Pulse duration in laser ablation process must be high to maximize the peak power.

True

False

One of the disadvantages of FT-IR is its mechanical simplicity.

True

False

The primary source of infrared radiation is thermal radiation

True

False

- Infrared radiation lies between the visible and radio waves portions of the electromagnetic spectrum.

True

False

- Infrared radiation produced by the motion of electrons in an object

True

False

The higher the pressure, the more the atoms and molecules move and the more infrared radiation they produce.

True

False

One of the disadvantages of FT-IR is sensitivity

True

False

The absorbed laser beam in AFM is tracked by PSPD that picks up the vertical and lateral motion of the probe.

True

False

One of the disadvantages of TEMS are ability to yield information of surface features, shape, size, and structures.

True

False

TEM is based on scattered electrons

True

False

Scanning electron microscope is higher resolution than transmission electron microscope

True

False

- SEM is based on transmitted electrons.

True

False

- One of the major downsides of SEM is the single scan image size, which of the order of 150 x150 micrometers.

True

False

- Optical microscope uses optical lens while electron microscope uses electric lens

True

False

- One of the disadvantages of SEM are samples require minimal preparation actions

True

False

One of the advantages of TEM are its images are high quality and detailed

True

False

Plasma significantly decreases the process pressure compared to the thermal CVD process.

True

False

CVD is suitable when has low chemical purity.

True

False

CVD is a formation of a thin film on the substrate surface through an inhibit chemical reaction between the substrate surface and a gaseous precursor

True

False

Plasma significantly increases the process temperature compared to the thermal CVD process.

True

False

- Plasma inhibited chemical vapor deposition

True

False

- CVD is suitable when has good stability during evaporation.

True

False

- The main concept of electrospinning process consist of a low voltage power supply, a polymer solution in a syringe and collector

True

False

- Nano-fillers are added to the nanofibers to improve only thermal conductivity

True

False

Nanofibers exhibit special properties due to low surface area to weight ratio compared to conventional fibers.

True

False

Active substance such as drug can be loaded on the nanofibers by physically entrapped or chemically absorbed

True

False

- Tissue engineering involves the use of regulatory signals as scaffold to support cell growth.

True

False

In membrane distillation, membrane displays a barrier allowing the water to pass through the membrane's pores.

True

False

Membrane distillation is used for treating slain and waste water by using hydrophilic membrane

True

False

Membrane distillation is used for treating slain and waste water by using hydrophilic membrane

True

False

Membrane distillation has many disadvantages such as low energy consumption and low working pressure.

True

False

Membrane distillation is the most widely studied technique to fabricate nanofibers

True

False

Tissue engineering often involves the use of skin placed on tissue scaffold in the formation of new viable tissue for a medical purpose.

True

False

Membrane distillation has many advantages such as low fouling phenomena.

True

False

Ceramic, synthetic, and natural polymers act as Scaffold

True

False

MEMS is a technique of combining electrical and mechanical components together on a chip

True

False

Physical deposition is a process which a stream of source of gas reacts on the substrate to grow the material desired.

True

False

Etching is the process of using weak acid to cut the unprotected parts of a metal surface to create a design

True

False

- There are only one type of etching process

True

False

A micro sensors reaches a significantly lower speed and sensitivity compared with microscopic approaches

True

False

Commonly sensed parameters in sensors are only flow rate, radiations, and pathogens.

True

False

The advantages of MEMS in sensors field are cheaper due to mass production and smaller in size.

True

False

The MEMS technology is an extended from of traditional mechanical circuit manufacturing.

True

False

There are two classes of etching process which are hot and cold etching

True

False

The fabrication types of MEMS are only etching and pattering

True

False

MEMS is used in medical science to make small devices that can be implanted in the human body.

True

False

Naturally occurred nanoparticles …………………

Welding Fumes

Mineral composites

-cooking smoke

Diesel exhaust

Natural origin nanoparticles ……………………….

Sea spray

- mineral composites

-volcanic ash

All of the above

You are asked to produce thin film, the simplest process you can use will be................

Laser ablation

Ball milling

Wire explosion

Sputtering

-………………………is………………..process in which, materials are deposited onto a particular surface by ejected atoms from that material.

Laser ablation, PVD

Sputtering, CVD

Wire explosion, CVD

Sputtering, PVD

-………………. Exchange between atoms and ions of the element causes sputtering.

Quantum

Momentum

Electrical

Electron

A top-down techniques widely used to produce porous nanostructures with controlled porosity.

Sputtering

Sol-gel

Thermal ablation

Ball milling

- Chemical technique that utilized chemical forces such as ……………, precipitation and hydrothermal.

Sol- gel

Sputtering

Laser ablation

Micro-organism

Formation of nanoparticles from atoms and molecules is…………... Manufactured process

Top-down

Physical

Bottom-up

Micro-organism

You are asked to craft nanoscale pattern, the simplest process you can use will be………..

Laser ablation

Ball milling

Etching

Sputtering

You are asked to synthesize metal nanoparticles with high throughput rate, the simplest process you can use will be………..

Laser ablation

Ball milling

Selective de alloying

Wire explosion

You are asked to synthesize nano-porous metal plate, the simplest process you can use will be………..

Laser ablation

Ball milling

Selective de alloying

Wire explosion

Pulse duration must be …………to ………….the peak power and to………..the thermal conduction to the surrounding material.

Small, minimize, maximize

High, maximize, minimize

Small, maximize, minimize

High, minimize, maximize

Formation of nanoparticles from bulk material is…………... Manufactured process.

Top-down

Physical

Bottom-up

Micro-organism

�……………. Is a process of removing material from a solid surface by irradiating it with a laser beam.

Laser ablation

Ball milling

Selective de alloying

Wire explosion

The energy transfer to the powder from steel balls depends on ………

The rotation speed

Size and number of balls

Time of the milling

All of the above

When a high electrical current passes through a metal wire with a high voltage, the metal wire………………..

Explodes

Vibrates

Evaporates

A,c

There are many advantages of the wire explosion such as………….

High throughput rate

Simplicity

a,b

None of the above

At ……..laser flux, the material is heated by absorbing laser energy and evaporates or…………….

High, sublimates

Low, plasma

LOW, sublimates

High, plasma

Nano material characterization is………..

Wetability

Size

Agglomeration

All of the above

Electron microscope is always used………….lens.

Optical

Electric

Magnetic

None of the above

�……………..is based on scattered electrons while …….is based on transmitted electrons.

AFM, SEM

TEM, SEM

SEM, TEM

SEM, AFM

�……………..is based on scattered electrons while …….is based on reflected laser

AFM, SEM

TEM, SEM

SEM, TEM

SEM, AFM

Optical microscope uses………..lens while electron microscope uses………lens.

Electric, magnetic

Optical, magnetic

Optical, electric

Non of the above

The sample in …………..has to be cut thinner whereas there is no such need with ………….sample.

AFM, SEM

TEM, SEM

SEM, TEM

TEM, AFM

The basic principle is that a beam of electrons is generated by a suitable source such as…………..

Emission gun

Tungsten filament

A, B

Non of the above

SEM is used in several applications such as …………..

The shape and size of the particles

The surface features of an object

Crystallographic information

All of the above

……………has much resolution than…………….

SEM, TEM

AFM, SEM

TEM, SEM

SEM, AFM

�……………..allows for large amount of sample to be analyzed at a time.

TEM

FT-IR

SEM

AFM

……………has much resolution than…………….

SEM, TEM

AFM, SEM

TEM, SEM

SEM, AFM

Infrared radiation lies between the visible and……………..portions of the electromagnetic spectrum.

Ultraviolet

Radio waves

Microwaves

X-rays

Infrared waves have frequencies which are……..than visible and……..than microwaves.

Higher, lower

Lower, equal

Lower, higher

Equal, higher

The reflected laser beam in AFM is tracked by………….that picks up the vertical and lateral motion of the probe.

PSDF

PSPD

PFPD

PSDP

The ………….laser beam in AFM is tracked by PSPD that picks up the vertical and lateral motion of the probe.

Absorbed

reflected

Transmitted

None of the above

There are different imaging modes of AFM which are………

Static mode

Dynamic mode

Tapping mode

All of the above

Molecular vibration takes place because of absorption of IR radiation when applied infrared frequency =………………….

Absorbed spectrum

Body transmitted microwaves

Natural frequency of vibrations

None of the above

�…..offer most powerful magnification, potentially over one million times or more

SEM

AFM

TEM

FT-IR

All the following are considered surface properties of nanomaterials except………..

Topography

Porosity

Morphology

Wetability

The elements and compounds that the object contains and the relative amounts of them is called……………

Topography

Crystallographic information

Composition

Morphology

The A, B in Figure (1) are …….

Secondary and absorbed electrons

Back scattering and absorbed electrons

Back scattering and secondary electrons

None of the above

�………….is a formation of a thin film on the substrate surface through an activate chemical reaction between the substrate surface and a gaseous precursor. While …………..is process in which, materials are deposited onto a particular surface by ejecting atoms from that material and condenses ejected atoms onto the surface under high vacuum environment.

PVD, CVD

CVD, PVD

sol-gel, PVD

None of the above

Bottom-up technique wide used to produce carbon nanotubes-----------

Etching

Chemical vapor deposition

Sol gel

Biological synthesis

CVD is suitable when has……….

Along shelf-life

Low chemical purity

Hazardous nature

All of the above

Plasma significantly …………….the process temperature compared to the thermal CVD process.

Increases

Decreases

Not change

None of the above

In the CVD, the vapor based processes can be classified in activation can be achieved either with

Temperature

Plasma

Oxidation

All of the above

CVD is suitable when has the following except…..

Low cost

Adequate volatility

A short shelf-life

High chemical purity

The method technique in Figure1 is

Wire explosion

Chemical vapor deposition

Etching

Laser ablation

The parte 1 in Figure1 is

N2 gas

Plasma

Substrate

None of the above

Nano-fillers are added to the nanofibers to improve…………

Thermal conductivity

Mechanical strength

Electrical conductivity

All of these

�…………..is used to fabricate nanofibers.

AFM

Spin coating

Electrospinner

Electrospraying

Nano-fillers such as…………. Are added to the nanofibers to improve their properties.

PVA

PES

AL2O3

All of these

Drug delivery with polymer nanofibers is based on the principle that dissolution rate of a drug particulate…………….with increased surface area of both the drug and the corresponding carrier.

Decreased

Increased

Constant

Non of above

Therapeutic drugs incorporate into nanofibers by …………the drug into the polymer solution to be spun

Precipitating

Solubilizing

A, B

Non of above

Drugs can be loaded on nanofibers by………………

Chemically entrapped

Chemically bond

Physically absorbed

All of these

Tissue engineering often involves the use of ……………..placed on tissue scaffold in the formation of new viable tissue for a medical purpose.

Blood

bones

cells

Skin

Ceramic, synthetic, and natural polymers act as…………………….

Cells

Scaffold

regulatory signals

Antimicrobial

Cells attach and migrate into …………….which supports cell growth, proliferation and matrix deposition

Regulatory signals

Antimicrobial

Scaffold

A,B

�…………………..is used to induce cell differentation and tissue formation

Cells

Scaffold

regulatory signals

Antimicrobial

�…………….incorporated electrospun nanofibrous membranes can offer a very promising efficiency in removal of such pollutants.

Surfactants

polymers

Antimicrobial agents

A,C

�………………….act as good anti microbial to the water membranes

Titanium dioxid

Silver salts

A,B

TIO3

The driving force of the membrane distillation process is given by …….

Surface tension

Electrostatic

partial vapor pressure difference

The driving force of the membrane distillation process is given by partial vapor pressure difference commonly triggered by ………………difference

Pressure

temperature

Humidity

Concentration

Membrane distillation is used for treating slain and waste water by using …………membrane

Hydrophilic

Polytropic

hydrophobic

Hyperbolic

In membrane distillation, membrane displays a barrier allowing the……………to pass through the membrane's pores.

Water

Salt

Vapor

All of them

Membrane distillation has many advantages such as ………..

high fouling phenomena

High working pressure

Not complex process

High energy consumption

When you drip water onto …………………. surface , it will spread out evenly when it hits the surface.

Hydrophilic

Polytropic

Hydrophobic

Hyperbolic

The MEMS technology is considered to be an extended form of traditional …………manufacturing

Mechanical circuit

Thermal circuit

integrated circuit

Electrical circuit

MEMS is a technique of combining ……………and mechanical components together on a chip.

Thermal

Magnetic

Electrical

Optical

�…………may have moving parts

MEMS

A,B

�………..is a process in which a material is removed from a target, and deposited on a surface.

Chemical deposition

Physical deposition

Aser ablation

Sol gel

Lithography is a widely used………………process

Deposition

Etching

pattering

None of them

Examples of lithography are…….

Ion beam lithography

X-ray lithography

Photolithography

All of them

�……………is the process of using strong acid to cut the unprotected parts of a metal surface to create a design.

Sputtering

CVD

Etching

PVD

�………..is a device distinguishes cancerous from non-cancerous cells thus aiding the surgeons in operations.

Smart pill

Sight for the blind

biocavity laser

Gyroscope

�……….is a device which receives and responds to a signals when touched.

Gyroscope

bioactivity laser

Sensors

Smart bill

Sensors is used to measure a physical quantity and converted it into a…… ....signals.

Digital

Analog

Electrical

None of them

Commonly sensed parameters in sensors are

Pathogens

radiations

flow rate

All of them

MEMS have many advantages such as……..

Farm established requires huge investments

Design includes very much complex procedure

Improved reproducibility

All of them

There are two classes of etching process which are ………….etching

Hot and cold

wet and dry

top and down

Deep and shallow

During etching process, the crafted nanoscale pattern is revealed………….removing the template.

Before

After

Within

All of them

MEMS is used in medical science to make small devices such as……….

Bio-cavity laser

Smart pill

Sight for the blind

All of them

..................has transistor as basic building block

MEMS

A,B

SEM is used in several applications such as …………..

The surface features of an object

Roughness

Identify unknown materials

All of the above

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