WorksheetsTech & engineering study guide final
Total questions: 75
Worksheet time: 38mins
Scrubber technology breaks down waste gasses produced by ____.
nuclear power plants
coal-burning power plants
locomotives
farm animals
The process of treating materials to make them usable again is called____.
recycling
reducing
reusing
composting
Which of the following are products of technology?
Your clothing
A school bus
Your desk
All of the above
The purpose of science is to____.
produce new products and services
discover and understand the laws of nature
manufacture new materials
provide good health care
When new products are developed to solve specific problems, the process is often called____.
designing
scientific research
engineering
green technology
Determining that a group of young people would benefit from the availability of more durable headphones is an example of____.
choosing a best solution
writing a design brief
implementing a solution
identifying a need
Product ergonomics include all of the following except____.
Sight
body size
cost
movement
The study of how a person, the products used, and the environment can best be fitted together is called____.
principles of design
ergonomics
prototyping
innovation
Communication is____.
sending a message
receiving a message
understanding a message
All of the above
What type of communication do you receive when you watch and listen to television, videos, and movies?
Audiovisual
Visual
Audio
None of the above
CAD stands for____.
Communication And Drawing
Computer-Applied Drawing
Computer-Aided Design
Communication And Design
The best way to record design ideas quickly is to make a(n)____.
model with card
sketch
orthographic drawing
scale drawing
The complete size and shape of an object is best described by a(n)____.
isometric sketch
pictorial
perspective sketch
orthographic view
Rapid manufacturing systems____.
produce real parts that can be used in actual products
allow on-demand manufacturing
create prototypes quickly during the design stage of product development
both A & B
____ properties control how a material reacts to heat or cold.
Thermal
Physical
Optical
Chemical
Which of the following is not a mechanical property of materials?
Texture
Strength
Plasticity
Hardness
The strength of a material is its ability to____.
resist corrosion
transmit sound energy
conduct electricity
withstand a mechanical force
Which of the following is a primary material?
Glass
Iron ore
Plastic
Cement
What do space stations, artificial organs, supersonic aircraft, and “high-tech” sports equipment have in common?
They occur in nature.
They are all products of technology.
They have existed for the last 100 years.
Both A and B
Technology is a process used to____.
make our lives more difficult
prove scientific theories
solve problems by designing and making products
decrease our leisure time
If you lived thousands of years ago____.
food collection would occupy most of your time
you would spend most of your days relaxing
you would not use tools
None of the above
Carbon dioxide is absorbed through the leaves of a tree and converted into nutrients in a process known as____.
alloying
photosynthesis
corrosion
expansion
A ferrous metal or alloy contains____.
copper
iron
tin
zinc
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)
A ____ surface has been chemically altered to potect it from the elements.
coated
converted
filed
sanded
The advantage of brass screws is that they____.
are strong
are cheaper than steel screwws
hold better than steel screws
do not rust
Pouring liquid metal into a mold to shape it is called____.
casting
forming
laminating
shaping
The advantage of casting plastic resin over casting metal is that____.
resins are cheaper
the molds are easier to make
resins can be cast at room temperature
bigger molds can be used
Adhesives provide a ____ bond between surfaces.
chemical
mechanical
friction
temporary
Products meant to be used once and then discarded are called ____ products.
durable
nondurable
nonrenewable
interchangeable
In a traditional management system, ____.
problems that occur are sent up a chain of command for a solution
workers look after only one machine
employees work in small, product-oriented teams
Both A and B
Which type of energy occurs as atoms are split?
Light
Electrical
Nuclear
Heat
Nuts, bolts, and screws join materials____.
chemically
mechanically
using friction
temporarily
The purpose of a structure is to____.
enclose and define a space
connect two points
hold back natural forces
All of the above
Which of the following is not an example of a dynamic load?
A truck crossing a bridge.
Furniture in a room.
A gust of wind pushing against a building,
A person bouncing on a chair.
Materials that can be designed to respond to environmental stimuli are called____.
nanomaterials
smart materials
biomaterials
composites
____ are used to replace natural body parts because the body does not reject them.
Nanomaterials
Smart materials
Biomaterials
Bioplastics
Truss bridges make use of which shape in their design?
Circle
Square
Triangle
Rectangle
Because concrete is weak in tension, it is____.
used as a decorative material only
used in flat structures only
used in small structures only
reinforced with steel rods
Prefabrication of a house involves____.
building parts of a house in a factory and then moving the parts to the building site for final assembly
building a house on the building site
delays due to bad weather
Both B and C
Which of the following are involved in planning?
Selecting and acquiring the site.
Going into contract.
Site preparation.
All of the above.
The vapor barrier in a wall or ceiling____.
reduces heat loss
reduces the passage of moisture
provides insulation
covers the inside of walls
The purpose of insulation is to____.
prevent the passage of water vapor
cover the interior of walls
strengthen walls
resist heat transmission
Which of the following statements is correct in comparing a four-stroke diesel engine to a four-stroke gasoline engine?
The diesel engine pollutes the air more than the gasoline engine.
The diesel engine uses less fuel than the gasoline engine.
The diesel has slower acceleration than the gasoline engine.
All of the above
Which of the following is a common use of an electric motor?
Motorcycles
Subway trains
Helicopters
Hovercraft
The difference between a jet engine and a rocket engine is that a____.
jet uses oxygen in the air, while a rocket carries its own oxygen
rocket uses oxygen in the air, while a jet carries its own oxygen
rocket engine uses jet fuel, while a jet engine uses propellants
jet operates outside the earth’s atmosphere, while a rocket operates within
A hydrofoil is an example of which mode of transportation?
Land transportation
Water transportation
Air transportation
Space transportation
Heat energy moving in the form of electromagnetic waves is called____.
convection
radiation
conduction
vibration
Which type of energy occurs as atoms of a material become more active?
Heat
Nuclear
Sound
Electrical
Designing the exterior space surrounding a home is called____.
planning
planning
landscaping
siting
A linkage is defined as a(n)____.
simple machine
electrically powered device
system of levers used to transmit motion
pair of levers connected in a straight line
Which of the following is not an example of on-site transportation?
An elevator
A robot
A bicycle
A conveyor
Which of the following would use a turbofan or turboshaft engine?
Aircraft
Cars
Trucks
Buses
Which of the following is used to support a roof?
Roof truss.
Joist
Interior surface.
Wall stud.
The land on which a house is built is called a____.
foundation
footing
site
subfloor
The receiver in a communication system____.
accepts encoded information and relays it to the decoder
is the wired or wireless means used to send information
translates the encoded message into an understandable form
is the person or machine that receives the decoded message
Computers use a simple code made from electrical signals called____.
Morse code
binary digital code
electrical code
None of the above
Which of the following can be used to send messages using light?
Copper cable
Microwaves
Fiber optic cables
None of the above
A type of agriculture in which plants are grown in a water-based system is called____.
hydroponics
aquaculture
precision farming
monoculture
Which of the following is a nonrenewable resource?
The sun
Wind
Oil
Water
To help decrease air and noise pollution, it is a good idea to ____.
use mass transit
use private cars
car pool
Both A and C
The four strokes of a four-cycle gasoline engine occur in which order?
Compression, intake, exhaust, power
Power, exhaust, compression, intake
Intake, compression, power, exhaust
Intake, power, compression, exhaust
Which of the following is an example of potential energy?
A spring released to drive a toy.
A compressed spring.
Dropping a hammer to hit a post.
None of the above.
Which of the following statements is not true?
Hydroelectricity is more economical than other electric power systems.
After the initial expense of building a dam and generating station, the cost of producing hydroelectricity is small.
No fuel is needed to operate a hydroelectric power station, apart from the sun’s energy.
Hydroelectricity is a nonrenewable form of energy.
Currently, about 20% of electricity in the United States is provided by____.
wind turbines
photovoltaic cells
fossil fuels
nuclear power plants
A material that allows electron flow only under certain conditions is called a(n)____.
capacitor
insulator
superconductor
semiconductor
Diodes____.
limit the amount of current flowing through a circuit
store an electrical charge and release it in one quick burst
allow current to flow in one direction only
act as insulators
Which of the following is not a part of production planning?
Determining what production methods and processes to use
Finding the best way for people to work together
Determining how long each manufacturing operation will take
Gathering information on production costs
Which of the following is not true of carbon monoxide gas?
It has a strong odor
It is colorless
It is poisonous
It combines with other gases to form ground-level ozone
Sulfur dioxide pollution is generated by____.
power plants
industrial processes
vehicle emissions
both A and B
Which of the following statements concerning bicycles is false?
A bicycle is an example of an AGV
The shape of bicycles has changed very little in the past 100 years
Bicycles can be made of materials such as aluminum and titanium
A recumbent bicycle reduces wind resistance
Human-powered vehicles include____.
rowboats, canoes, and bicycles
cars, buses, and trucks
elevators, escalators, and conveyers
forklifts, cranes, and front-end loaders
Laws regulating its use have resulted in a huge decrease in the level of ____ in the air.
sulfur dioxide
lead
nitrogen dioxide
None of the above
Radioactive waste is produced by____.
nuclear power plants
uranium mining
some medical treatments
All of the above
Responsibilities you take on when you accept a job, such as getting to work on time and being dependable, are called ____.
personal skills
work ethics
aptitudes
None of the above
