WorksheetsTech/Eng
Total questions: 45
Worksheet time: 23mins
Name
Class
Date
1.
Which of the following are the fundamental components of a communication system?
a)
control and propulsion
b)
transmitter and reciever
c)
foundation and decking
d)
production and marketing
2.
The diagram shows an example of a communication system for a United States Geological Survey (USGS) data collection site that collects information about water in a lake. What is the source of the message in this communication system?
a)
the satellite
b)
the satellite dish
c)
the USGS data collection site
d)
the water data available on the internet
3.
Which of the following is performed by the quality control division of a company that is manufacturing a chair?
a)
A. applying the varnish
b)
B. assembling the parts
c)
C. cutting the material
d)
D. inspecting the finish
4.
Scientists working for a company are testing a new medicine that they think will help heal damaged tissue. In which part of the company are the scientists working?
a)
A. distribution
b)
B. mass marketing
c)
C. public relations
d)
D. research
5.
An anemometer measures wind speed. The diagram below show and anemometer that a student built. Which of the following statements best explains why the student used a metal pin to hold the straws in place?
a)
The pin is thin and strong
b)
The pin can be magnetized
c)
The pin is flexible and shiny
d)
The pin can conduct heat energy
6.
The labeled parts of the sailboat have specific functions.
The sail provides the force needed to move the boat. The mast holds up the sail. The rudder steers the boat.
Identify it as a structural, propulsion, or control subsystem.
a)
Option 1
b)
Option 2
c)
Option 3
d)
Option 4
7.
Which of the following identifies the primary function on a radio station tower in a communication system?
a)
decoder
b)
encoder
c)
receiver
d)
transmitter
8.
Which of the following best describes the function of an ENCODER in a telephone communication system?
a)
converting sound to electrical impulses
b)
receiving transmitted electrical signals
c)
changing electrical impulses into sound
d)
sending electrical signals through a circuit
9.
A movie studio will use two methods of communication, television and the internet, to advertise a new movie. Which of the following must both methods of communication us in order to show the advertisements to viewers around the world?
a)
systems to locate viewers
b)
networks to transmit signals
c)
printing to create the images
d)
software to search for images
10.
The picture below represents boxes piled in a closet. The same boxes were then arranged neatly on shelves in the closet. The shelves were built to help store the boxes so the contents of the boxes can be found more easily. Which of the following problems was solved by building shelves?
a)
organizing the use of space
b)
limiting the shape of the boxes
c)
increasing the size of the closet
d)
equalizing the weight of the boxes
11.
Which of the following is the most important function of the research and development department of a large corporation?
a)
to create, test, and improve products
b)
to manage the manufacturing of products
c)
to persuade customers to buy the products
d)
to label, package, and send products to retail stores
12.
The students in a class would like to make 20 paper sailboats for a race. The students will select one design and collect the materials they need to construct the boats. Which of the following is the best way for the students to be sure the paper sailboats will float without tipping over in the water?
a)
construct a prototype of a boat for testing
b)
calculate the total mass of all of the finished boats
c)
determine the total amount of weight each boat can carry
d)
test the strength of each material used to construct the boats
13.
A scientist wants to collect several bird eggs on an island. She needs a case that will protect the eggs she collects. Which of the following cases would best protect the eggs?
a)
a hard metal case with flexible foam lining
b)
a flexible metal case with smooth plastic lining
c)
a strong wooden case with lightweight plastic lining
d)
a lightweight wooden case with strong aluminum lining
14.
Which of the following statements best explains why helicopters are usually more effective than airplanes for search-and-rescue operations in mountainous regions?
a)
Helicopters can land safely in smaller areas.
b)
Helicopters can fly faster to reach their destination.
c)
Helicopters can fly longer distances without refueling.
d)
Helicopters can stay in the air longer in bad weather conditions.
15.
A company is designing a new laptop computer. The computer must not exceed a certain weight. Which of the following is the most likely reason to have a weight restriction for the computer?
a)
to make it easier to test the prototype
b)
to reduce the cost of making the computer
c)
to make it easier to transport
d)
to reduce the cost of building the prototype
16.
A company is developing a new kind of camera. Which of the following best describes a prototype for the camera?
a)
a full-size working version of the camera
b)
a three-dimensional clay model of the camera
c)
a list of the materials needed to build the camera
d)
a drawing showing the different sides of the camera
17.
A student plans to build a bench like the one shown.
The student has determined that the following steps need to be completed:
make measurements
cut wood
smooth edges
attach pieces of wood together with fasteners
The student will use an electric sander, a screwdriver, and an electric saw to build the bench.
Select three other items the student should use to safely build the bench.
a)
12-inch ruler
b)
dust mask
c)
goggles
d)
pliers
e)
tape measure
18.
The students in a class plan to build a small catapult to launch marbles. They want to test the properties of different materials so they can choose the best materials to build the catapult.
Which two properties of the materials should they test in order to build a catapult that launches marbles the greatest distance?
a)
strength and flexibility
b)
hardness and flexibility
c)
strength and malleability
d)
hardness and malleability
19.
An artist made a model airplane out of solid wood. The artist began by making the body of the airplane, the wings, and other parts. Then the artist put the parts together to make the finished product.
Part A
Which of the following best describes a separation process the artist used to create the desired shape for the body of the airplane?
a)
removing pieces from a block of wood
b)
gluing the different wooden parts together
c)
using heat to change the properties of the wood
d)
sorting the different wooden parts into categories
20.
Part B. Which of the following is a finishing process?
a)
placing the airplane in a display
b)
painting the body of the airplane
c)
making sure the airplane is to scale
d)
attaching the airplane’s wings to the body
21.
The drawing below shows a wooden crate. Which of the following sets of equipment is most appropriate to design and construct this wooden crate?
a)
A. hammer, wrench, electric drill, sander
b)
B. electric drill, nails, chisel, screwdriver
c)
C. measuring tape, hand saw, nails, hammer
d)
D. electric stapler, pliers, yardstick, screwdriver
22.
The tools shown in the picture below are used in a factory. In which of the following manufacturing processes are these tools most likely used?
a)
A. assembling
b)
B. cutting
c)
C. finishing
d)
D. shaping
23.
Which of the following describes the proper use of a tool?
a)
A screwdriver is used to bend a thick wire.
b)
A pair of pliers is used to cut thin sheets of metal.
c)
A wrench is used to push a nail into a piece of wood.
d)
A drill press is used to make a hole at a precise angle.
24.
The picture below shows a group of sharp steel strips arranged in a pattern that is used to manufacture cardboard jigsaw puzzles. What is the purpose of the group of steel strips?
a)
to cut the puzzle pieces out of cardboard
b)
to join the puzzle pieces together for packaging
c)
to assemble the puzzle pieces for store displays
d)
to finish the puzzle pieces by smoothing the cardboard
25.
An engineer constructs a prototype from wood. Which of the following is the best tool for the engineer to use to make sure the prototype's surface is smooth?
a)
band saw
b)
chisel
c)
drill
d)
sandpaper
26.
A medical company designs a new device to measure a person's vital signs, including heart rate and blood pressure. During the design process, the company produces several prototypes. During which of the following steps is it most appropriate to use a prototype?
a)
distributing information about the device
b)
researching how vital signs are measured
c)
testing whether the device works properly
d)
determining which vital signs are most important
27.
A large puddle forms in a low area of a park every time it rains. Visitors to the park complain about the puddle. A landscaper is considering two design solutions to solve the problem: Solution 1: adding dirt to build up the low area so rainwater becomes runoff instead of a puddle Solution 2: creating a rain garden so rainwater becomes groundwater instead of a puddle. The diagrams show an example of each solution.
a)
The rain garden would take less time to make.
b)
The rain garden would be less expensive to maintain.
c)
The rain garden would help prevent erosion of the area.
d)
The rain garden would move more water across the ground.
28.
The picture below shows a television satellite dish. The satellite dish is an example of which of the following components of a television communications system?
a)
decoder
b)
encoder
c)
receiver
d)
transmitter
29.
Different types of cell phone signals can provide different download speeds. The graph shows the download speeds of two types of cell phone signals, X and Y, based on how close the cell phones are to an antenna.
The bar graph below shows how the download speeds of the two cell phone signals were affected as they traveled through air, glass, and stone.
Based on the graphs, which of the following best compares the two types of cell phone signals?
a)
Through each of the materials, signal X has a faster download speed than signal Y has.
b)
At any distance from an antenna, signal X has a faster download speed than signal Y has.
c)
When traveling close to an antenna, signal X has faster download speeds through air than signal Y has.
d)
When traveling far away from an antenna, signal X has faster download speeds through stone than signal Y has.
30.
A student uses a keyboard on a laptop to type a message into an instant messaging program. The processor in the laptop runs the instant messaging program’s commands. The laptop uses Wi-Fi to connect to the internet. Another student reads the message on a phone. Which of the following correctly categorizes the parts of the communication system?
a)
Option 1
b)
Option 2
c)
Option 3
d)
Option 4
31.
Which of the following is the best example of a part of the propulsion system of a tractor?
a)
A. engine
b)
B. front headlight
c)
C. hood
d)
D. steering wheel
32.
A manufacturer is considering using four different materials to construct a pan for cooking on a stove. The table shows the thermal conductivity and melting point of each material. A material with a higher thermal conductivity value conducts more thermal energy. Which materials should be used for the pan?
a)
The manufacturer should use aluminum for the bottom of the pan and iron for the handle.
b)
The manufacturer should use aluminum for the bottom of the pan and copper for the handle.
c)
The manufacturer should use iron for the bottom of the pan and stainless steel for the handle.
d)
The manufacturer should use copper for the bottom of the pan and stainless steel for the handle.
33.
Which of the following tools is most useful for tightening a small mechanical fastener?
a)
chisel
b)
pliers
c)
saw
d)
sander
34.
A shoe manufacturer randomly selects 10% of the production from each shift. Each of these shoes is checked to ensure that it is correctly made. What is this process called?
a)
A. quality control
b)
B. product distribution
c)
C. production selection
d)
D. research and development
35.
In a house, cracks are forming in the walls, around the corners of several doors, and around the windows. The cracks are forming because the house is constructed on unstable ground. Which of the following parts of the house should be strengthened to prevent the cracks from getting worse?
a)
the decking
b)
the foundation
c)
the roofing
d)
the siding
36.
The diagram shows a building with four parts labeled, W, X, Y, and Z. Which part of the diagram represents the foundation of the building?
a)
W
b)
X
c)
Y
d)
Z
37.
Which of the following describes the foundation?
a)
It is a flat surface that people can walk on, but it does not help to support the building.
b)
It is a part that the entire building is built upon, and it keeps the building from sinking into the ground.
c)
It is a vertical wall that blocks access and visibility, but it provides structural support for the building.
d)
It is a cover that protects the building, and it shields anything inside from sunlight and precipitation.
38.
Which of the following is the storage for this communication system?
a)
the lake
b)
the satellite
c)
the satellite dish
d)
the web server
39.
When NASA communicates with a spacecraft orbiting Earth, the message is first converted to a signal that can be transmitted digitally. Which device is used to convert the message into a digital signal?
a)
a decoder
b)
an encoder
c)
a receiver
d)
a transmitter
40.
A drone is a type of machine that can be controlled remotely. A team of engineers designed a drone for taking pictures on the International Space Station, which orbits Earth. Scientists on Earth use the drone to take pictures of activities on the space station. The pictures are transmitted from the drone back to the scientists on Earth.
Which of the following would be classified as feedback?
a)
sending the pictures from the drone
b)
receiving the pictures from the drone
c)
constructing the drone’s communication system
d)
reporting problems about the drone’s control system
41.
A computer touch screen allows users to enter information. Users have complained that the touch screen is too difficult to operate because the system does not indicate when a choice has been selected.
The complaints are which element of the universal systems model?
a)
feedback
b)
goal
c)
inputs
d)
processes
42.
A college campus has so few parking spaces that cars are often lined up waiting to park during class hours. Which of the following describes how the college could best solve the need for more parking spaces using the universal systems model?
a)
The college could build an additional parking lot, gather parking data, and then receive input from community meetings.
b)
The college could limit access to parking lots during busy hours, hire security officers to help restrict parking, and then gather parking data.
c)
The college could gather parking data, receive input from community meetings, build an additional parking lot, and then gather more parking data.
d)
The college could hire security officers to help restrict parking, gather parking data, receive input from community meetings, and then gather more data.
43.
The diagram below shows the outline of a box that is closed on all sides. Which of the following patterns could be used to create the box?
a)
Option 1
b)
Option 2
c)
Option 3
d)
Option 4
44.
The picture below shows an iron. When considering an iron as an example of a system, what is the input?
a)
A. electricity
b)
B. temperature
c)
C. motion on clothes
d)
D. steam from the plate
45.
After a windstorm, Niko called the electric company to report that he had no electricity. His phone call is an example of which of the following elements of a universal systems model?
a)
A. designing a process
b)
B. generating output
c)
C. giving feedback
d)
D. setting a goal
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