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WorksheetsOCH551 Industrial Nanotechnology-Quiz 1
Total questions: 25
Worksheet time: 3600secs
How many oxygen atoms lined up in a row would fit in a one nanometer space?
None; an oxygen atom is bigger than 1 nm
One
Seven
Seventy
Graphene is
Single sheet of Silicon
Single sheet of carbon
Other name for graphite
a bulk semiconductor
The properties of nanoparticles like melting point, solubility, color, etc changes on varying the
Size
Composition
Surface proeperties
none of the above
Which of the following picture better explains quantum confinement effect?
……………. cannot be fabricated on an IC
Transistors
Diodes
Resistors
Large inductors and transformers
Fabrication of ICs is done by
Photolithography
Etching
ion implantation
All of the above
The condition for population inversion is
n1=n2
n1>n2
n2>>>n1
n2> n1
On over charging a battery
It will bring about chemical change in active materials
It will increase the capacity of the battery
It will raise the specific gravity of the electrolyte
None of the above
Five 2 V cells are connected in parallel. The output voltage is
1 V
2 V
10V
2.5 V
Organic light emitting diodes (OLED) are used to create digital displays. What are the advantages of OLED over LCDs
OLEDs can be fabricated using flexible plastic substrates
roll up displays embedded in clothing can be manufactured
transparent displays are possible
all of the above
The semiconductor which produces blue LED
Silicon
Gallium Arsenide
Indium Tin Oxide
Indium Gallium Nitride
The region where the electrons and holes diffused across the junction is called ________
Depletion meet
Depletion region
Depletion space
Depletion boundary
Difference between capacitor and super capacitor
They store energy in the form of charges
It is made of two metal plates
A separator is used
They have high power density
What is the difference between Photodiode and Solar cell?
No External Bias in Photodiode
No External Bias in Solar cell
Larger surface area in photodiode
No difference
The following figure represents
Absorption
stimulated emission
Spontaneous emission
transmission
Which of the following biological materials are not in nano size?
Proteins
DNA
Brain
Virus
What are the advantages of bionanotechnology?
Decreasing use of toxic chemicals
Producing an environmentally friendly nanoparticles
Improved healthcare by fabrication of devices
all of the above
Biomaterial Interface Processes helps to
improve the characteristics of the biomaterial
protect the structure
reduce pain
make it adopt to the biological environment
A material which is generally used in soft lithography
PDMS
PMMA
PVC
PVA
Name the bone cells
Neurons
osteoblasts
endothelial cells
T cells
Which of the following components are used in dye sensitized solar cells? (Select multiple options that apply)
Anode
Cathode
Dye
Electrolyte
Transistor
Which one or many of the following best suit the quantum confinement effect?
Quantum confinement is the spatial confinement of electrons in one or more dimensions within a material
They do not possess size dependent properties
Electronic energy levels become discrete
Quantum dots
They do not obey classical mechanics
Define a super capacitor using the following options (Select multiple options if they apply)
It is an energy storage device
Stores energy in the form of charges from an electrolyte solution
A separator is used to separate anodic and cathodic components
Electrostatic double layer capacitors
Which one or many of the following methods are used to fabricate biomaterials?
Sintering
Soft lithography
Colloidal resist
Self assembly
Which one or many of the following are used as bone implants?
Titanium
CaP ceramics
Copper
Nanocarbon
