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WorksheetsEngineering Final Exam
Total questions: 50
Worksheet time: 25mins
Properties that control how a material reacts to heat or cold are called___ properties.
thermal
physical
optical
chemical
Which of the following is not a mechanical property of materials?
Texture
Strength
Plasticity
Hardness
Carbon dioxide is absorbed through the leaves of trees and converted into nutrients in a process known as
alloying
photosynthesis
corrosion
expansion
Which of the following is the strongest engineered wood?
Plywood
Particleboard
Blockboard
Hardboard
Which of the following is not a type of manufactured board?
Hardboard
Particleboard
Plywood
Maple
A ferrous metal or alloy contains.___
copper
iron
tin
zinc
Thermoset plastics___.
can be heated and formed only once
can be repeatedly heated and formed
can be recycled and used in new products
have very poor heat resistance
Which of the following is not true of plastics?
Plastics are good insulators
Plastics resist corrosion
Plastics can be molded easily
Plastics have high mass (weight).
Biobased polymers, or bioplastics,___.
are made from nonrenewable resources
are materials made from living organisms
are very difficult and expensive to recycle
damage the environment when recycled
One example of a composite material is ___.
concrete
gold
sliver
wool
Textiles can be made from ___.
wool, iron ore, and paper
cotton, silk, and paper
wool, cotton, and polyester
silk, polyester, and iron ore
Material used to make devices that replace damaged or missing body parts are called ___.
nanomaterials
smart materials
biomaterials
bioplastics
Graphene is a nanomaterial formed from a single layer of ___ atoms.
graphite
calcium
glass
carbon
The design and construction of structures must ___.
minimize the effects of bending
maximize the effects of bending
allow only some parts to bend
be extremely rigid and not bend at all
A frame structure is composed of ___.
vertical pylons and cable stays
horizontal beams and vertical columns
ties in compression
horizontal columns and vertical beams
The six simple machines are ___.
lever, pulley, screwdriver, electric drill, hammer, and wrench
inclined plane, wedge, screw, hammer, screwdriver, and wrench
wheel and axle, wedge, lever, pulley, screw, and scissors
lever, pulley, wheel and axle, inclined plane, wedge, and screw
In a Class 1 lever ___.
the fulcrum is between the effort and the resistance
the effort is between the fulcrum and the resistance
the resistance is between the effort and fulcrum
both effort and the resistance are to the left of the fulcrum
In a Class 3 lever ___.
the resistance is always greater than the effort
the resistance is between the effort and fulcrum
the fulcrum is between the effort and the resistance
both the effort and the resistance are to one side of the fulcrum
A linkage is a(n) ___.
simple machine used to move a mass
electrically powered device
system of levers used to transmit motion
pair of levers connected in a straight line
An eccentric cam causes ___.
reciprocal motion only
linear motion only
uneven linear motion
reciprocal linear motion
The period when a follower on a pear-shaped cam remains motionless is called ___.
dwell
stoppage
resting
rotation
In the metric system, applied force is measured in ___.
foot pounds
newtons
square meters
pascals
In the metric system, pressure is measured in ___.
pascals
newtons
foot pounds
square meters
The force that acts like a brake on moving objects is called ___.
momentum
effort
friction
pull
Airplanes are able to fly because the ___.
wings are very thin and therefore do not create much friction
nose is shaped like a cone and causes little wind resistance
wings can flex and take advantage of any wind that is blowing
shape of the wings produces lift
Which of the following would use a turbofan or turboshaft engine?
Aircraft
Cars
Trucks
Buses
Which of the following lists the four strokes of a gasoline engine in the correct order?
Compression, intake, exhaust, Power
Power, exhaust, compression, intake
Intake, compression, power, exhaust
Intake, power, compression, exhaust
Which of the following statements is true?
A diesel engine pollutes the air less than a gasoline engine
A diesel engine uses more fuel than a gasoline engine
A diesel engine has faster acceleration than a gasoline engine
A diesel engine uses less fuel than a gasoline engine
Which of the following is the correct definition of the term energy?
Installing solar panels on the roof of a home
Using machines instead of hand tools
Replacing inefficient with energy-saving appliances
The capacity to perform work
Which of the following is an example of potential energy?
A spring released to drive a mechanical toy
A compressed spring
A hammer hitting a post
A ball rolling down a hill
Water flowing downhill is an example of ___ energy.
thermal
gravitational
electrical
mechanical
When electrons move from one atom to another in a conductor, this is called ___ energy.
thermal
electrical
gravitational
mechanical
Which type of energy occurs as atoms of a material become more active?
Heat
Nuclear
Sound
Electrical
Which type of energy occurs as atoms are split?
Light
Electrical
Nuclear
Heat
A ferrous metal contains iron.
True
False
Graphene is a nanomaterial formed from a single layer of plastic.
True
False
Static loads are always changing.
True
False
As a bridge material, concrete is weak under compression, but strong under tension.
True
False
Solar cells can convert the sun's energy directly into light energy.
True
False
Give a material its size, density, porosity, and surface texture.
Chemical properties
Synthetic properties
Physical properties
Composite properties
The characteristics of a material that allow it to withstand applied forces.
Synthetic Properties
Acoustical Properties
Mechanical Properties
Optical Properties
Control how a material reacts to heat or cold.
Electrical Properties
Composite Properties
Acoustical Properties
Thermal Properties
Control a material's reaction to light
Mechanical Properties
Optical Properties
Magnetic Properties
Chemical Properties
Control how a material reacts to sound waves
Acoustical Properties
Magnetic Properties
Electrical Properties
Thermal Properties
Determine whether or not a material will be attracted to a magnet
Synthetic Properties
Magnetic Properties
Acoustical Properties
Physical Properties
A released hammer
Kinetic energy
Potential energy
A compressed spring
Kinetic energy
Potential energy
A stretched rubber band
Kinetic energy
Potential energy
A released spring
Kinetic energy
Potential energy
Which of the following is not an example of on-site transportation?
Elevator
Escalator
Airplane
Conveyor
