WorksheetsEngineering Materials_3
Total questions: 40
Worksheet time: 1hrs 4mins
Stainless steel is ferrous metal has a strong
magnetic property
True
False
Non metals are good conductors of heat and
electricity.
True
False
Cobalt is non ferrous metal which does not contain iron however it has a good magnetic property
True
False
Molecule is the name we give to two or more atoms chemically joined together
True
False
Wall and floor tiles are made from
Polymers
Metals
Ceramics
Composites
Smart Materials
Yachts and sport equipment are made from
Polymers
Metals
Ceramics
Composites
Smart Materials
Which of the following materials is recommended to make high voltage electrical insulation?
Polymers
Metals
Ceramics
Composites
Smart Materials
............................is the property of a material that it does not break under a sudden shock
Hardness
Ductility
Malleability
Toughness
............................is a ability of a material to be applied by compression forces in all directions without cracking
Hardness
Ductility
Malleability
Toughness
............................is a ability of a material to be reshaped along its length by scratching force
Hardness
Ductility
Malleability
Toughness
............................is a ability of a material to resist scratching, wear and indentation without cracking
Hardness
Ductility
Malleability
Toughness
Plasticity
Ability of a material to be reshaped under force and does not back to its original shape after removing that force
Ability of a material to resist the actions of a mechanical force
Material has a little ability to be deformed before fracture
Ability of a material to be shaped under force and back to its original shape after removing that force
Elasticity
Ability of a material to be reshaped under force and does not back to its original shape after removing that force
Ability of a material to resist the actions of a mechanical force
Material has a little ability to be deformed before fracture
Ability of a material to be shaped under force and back to its original shape after removing that force
Brittleness
Ability of a material to be reshaped under force and does not back to its original shape after removing that force
Ability of a material to resist the actions of a mechanical force
Material has a little ability to be deformed before fracture
Ability of a material to be shaped under force and back to its original shape after removing that force
Strength
Ability of a material to be reshaped under force and does not back to its original shape after removing that force
Ability of a material to resist the actions of a mechanical force
Material has a little ability to be deformed before fracture
Ability of a material to be shaped under force and back to its original shape after removing that force
Pulling is a
Tension force
Compression force
Shear force
cutting is a
Tension force
Compression force
Shear force
Pressing is a
Tension force
Compression force
Shear force
The material that able to be deformed permanently is
Ductile
Rigid
Tough
Elastic
Plastic
The material which is not able to change its shape under force
Ductile
Rigid
Tough
Elastic
Plastic
The material that able to be deformed temporarily is
Ductile
Rigid
Tough
Elastic
Plastic
Materials that are poor conductors of heat called thermal insulators such as;
Polymers
Metals
Ceramics
Smart materials
Most of metals have a good magnetic property excluding
Cobalt
Carbon
Stainless steel
Iron
Non metals materials have a poor magnetic property , However there two some material have a good magnetic property such as
Cobalt
Carbon
Stainless steel
Silicon
What is Ferrous metal
Material that has good electrical resistance
Metal that consists of Chromium
Metal that has non magnetic properties
Metal that has iron as a base metal
Which metal is commonly used for electric switch-gears?
Ceramics
Thermoplastics
Thermosetting
Rubber
Which metal is commonly used for Machine tools, vices and engine blocks
Cast iron
Mild steel
high Carbon steel
Stainless steel
Ceramics have good ability to withstand high temperatures without softening and deforming under
normal service conditions that’s why they are most widely used for?
Electric insulators
Water bottles
Electric conductors
Furnace lining
Ceramics have good ability to resist chemical attack whoever they lack of
Ductility
Brittleness
Hardness
Electric conductivity
Which one of the following materials is known as hard materials and is usually used as abrasives
and/or cutting tool tips?
Polymer
Metal
High speed steel
Ceramic
Materials used for electric insolators must have a low degree of
Thermal conductivity
Hardness
Electric conductivity
Compressive strength
Polymers are classified mainly into two categories
Thermoplastic
Elastomers
Plastics
Thermosetting
When it heated becomes hard and rigid and it can never again be softened by heating
Rubber
Thermoplastic
Thermosetting plastic
Steel
It becomes soften every time they are heated
Gold
Thermoplastic
Thermosetting plastic
Copper
Cast iron is to be considered as a .............. material
Ductile
Rigid
Tough
Elastic
Plastic
Which process is to be used to improve the corrosion resistance of the steel
Recrystallisation
Annealing
Normalizing
Alloying Metals
To increase the temperature range and improve a stabilized austenite and ferrite in the
Iron/Carbon diagram
Recrystallisation
Annealing
Normalizing
Alloying Metals
What is the main purpose of Annealing process
To eliminate coarse-grain structure
To increase the temperature range of phases
To Increase of corrosion resistance
To increase ductility and improve machinability
In which process the steel is heated and is to be cooled by lifting in the furnace after switching it off
Normalizing
Alloying Metals
Annealing
In which process the steel is heated and is to be cooled by lifting in the open air
Normalizing
Alloying Metals
Annealing
