Font size
WorksheetsSelf - Assessment 8: Ceramics
Total questions: 51
Worksheet time: 25mins
Which of the following is (are) property(ies) of ceramic?
brittle
heat-resistant
corrosion resistant
all of the other choices
High-fired ceramics, like stoneware and porcelain, were first produced by what culture?
Romans
Vulcans
Greeks
Chinese
Where did the first examples of pottery appear?
Middle East
Europe
Eastern Asia
Africa
When did clay-based ceramics become popular as containers for water and food?
7,000 BCE
9,000 BCE
10,000 BCE
8,000 BCE
What significant advancement in ceramic production occurred around 600 CE in China?
The invention of the potter’s wheel
The introduction of high temperature kilns capable of reaching up to 1350°C
The creation of the first glazed pottery
The use of ceramic for writing tablets
Which type of ceramic is known for its excellent dielectric characteristics and high chemical resistance?
Magnesium Technical Porcelain
Cordierite
Silicon Carbide
Zirconia
The properties of clay that allow it to to be easily shaped and manipulated
slippery
plasticity
earthenware
greenware
Ceramics have the ability to resist chemical attack however, they lack these two properties:
Ductility
Brittleness
Hardness
Electric conductivity
Materials used for electric insulators must have a low degree of: (choose two answers)
Thermal conductivity
Hardness
Electric conductivity
Compressive strength
Major ingredients of traditional ceramics is
Silica
clay
feldspar
all
Hot isostatic pressing is not a viable option if the chief criterion is
low cost
strength without grain growth
zero porosity
processing refractory ceramics
larger scale production
During sintering densification is not due to
grain growth
surface diffusion
atomic diffusion
bulk diffusion
presence of defects
Which of the following ceramics is used as a pigment in paints
TiO2
ZrO2
SiO2
UO2
Which of the following is used as a ceramic material for capacitors?
Fe2O3
BaTiO3 + Nb2O5
Si3N4 with 1-5 % of MgO
Mg2 SiO2
PbZrO3 and PbTiO3 are
semiconductors
Spinel ferrites
piezoelectric materials
acidic refractories
The composition ZrO2 - 9 mol% is known as
Feldspar
fully stabilizied zirconia
partially stabilizied zirconia
Radome
Materials Which can retain their strength above 550 deg. C are called
refractories
non-metals
metals
ceramics
which of the following is not an insulator material
steatite
Fosterite
partially sintered Alumina
Borazon
Which set of properties are commonly associated with ceramic materials.
Good toughness, good conductivity and light weight.
High levels of hardness, good conductivity and light weight.
Nice colours
High levels of hardness, high levels of heat resistance and quite brittle.
Which of the following is not a ceramic material?
Glass
Silicon nitrite
Bakelite
Silicon carbide
A common micro structure found in ceramic materials is a
Crystalline structure
Grain structure
Chain structure
pretty pattern
Which of the following processes is not associated with the manufacture of ceramic products?
Welding
Sintering
Slip casting
Powder forming
Select two reasons why the given product would be made from a ceramic material.
It would be cheap so keeping costs down..
If it was to be used in an erosive environment.
If it was to be subjected to high levels of impact.
For ease of manufacturing
If it was to be used in high temperatures.
Although ceramic materials have a good range of important properties one limitation to their use is that they are often
Too malleable
Too brittle
Too ductile
Too light
Clay is composed of
3 C's: Calcium, Carbon, and Chromium
Silicon, Carbon, Water
Aluminum Oxide, Silica, and Water
Ceramic and glaze
What is the meaning of 'Keramikos' in Greek?
Metallic compound
Burnt stuff
Strong material
High temperature process
What are the general properties of ceramics?
Low strength and hardness at elevated temperatures
High thermal and electrical conductivity
High chemical stability and low melting temperature
Sensitive to flaws, defects, and surface cracks
What are the two categories of ceramics?
High temperature ceramics and low temperature ceramics
Traditional ceramics and industrial ceramics
Metallic ceramics and non-metallic ceramics
Hard ceramics and soft ceramics
What is the unit cell of ceramics generally more complex than metals?
It contains more than one element
It has low packing factors
It has high-density planes and directions
It has mixed bonding (ionic and metallic)
Which is the most widely used oxide ceramic?
Zirconia
Silica
Alumina
Titanium oxide
What is the most simple silicate material?
Silicon Dioxide
Aluminum Oxide
Zirconium Oxide
Calcium Fluorite
What is the color of glass obtained by adding small amounts of cobalt?
Red
Purple
Blue
Green
Which material is tungsten carbide made of?
Tungsten and carbon
Tungsten and titanium
Tungsten and silicon
Tungsten and nitrogen
What are ceramic knives made of?
Alumina
Zirconium oxide
Titanium carbide
Silica
What are ceramic ball and roller bearings used for?
Low temperature and high speed conditions
Low temperature and low speed conditions
High temperature and low speed conditions
High temperature and high speed conditions
What is the main advantage of ceramic knives?
Chemically reactive and prone to staining
Low hardness and wear resistance
High hardness and wear resistance
Heavyweight and difficult to use
What is the primary raw material for traditional ceramics?
Silica
Clay
Zirconia
Alumina
What is the interaction bond in ceramics?
Totally metallic
Partially metallic and partially covalent
Totally covalent
Totally ionic
What is the color of glass obtained by adding small amounts of selenium?
Green
Blue
Purple
Red
What is the structure of cubic boron nitride?
Tetragonal
Cubic
Hexagonal
Orthorhombic
Ceramic materials are weak in
shearing
tension
both (shearing) and (tension)
compression
Advanced ceramics are also referred to as
rapid prototyping
traditional ceramics
superior ceramics
engineering ceramics
