Question 1

In which of the following examples would a hydraulic system be useful?

Accepted Answer

A) inflating an automobile tire 
B) lifting a 2-ton piece of machinery 
C) wiring light bulbs in an electric circuit 
D) sending millions of messages across the Atlantic Ocean each day 
A) inflating an automobile tire 
B) lifting a 2-ton piece of machinery 
C) wiring light bulbs in an electric circuit 
D) sending millions of messages across the Atlantic Ocean each day

Question 2

Message signs and arrow boards are used to direct traffic and safeguard workers on roads and highways. These devices were originally run by dieselpowered generators.Which of the following provides a practical way to power these mobile devices and is more efficient than a generator?

Accepted Answer

A) natural gas 
B) water power 
C) a geothermal system 
D) a solar conversion system 
A) natural gas 
B) water power 
C) a geothermal system 
D) a solar conversion system

Question 3

Which of the following is most likely to require direct current (DC) for proper operation?

Accepted Answer

A) a blender 
B) a flashlight 
C) an electric heater 
D) a microwave oven 
A) a blender 
B) a flashlight 
C) an electric heater 
D) a microwave oven

Question 4

Which of the following would be the most important property to test when developing a paper filter for a coffeemaker?

Accepted Answer

A) conductivity 
B) density 
C) plasticity 
D) porosity 
A) conductivity 
B) density 
C) plasticity 
D) porosity

Question 5

During a hurricane, winds can blow out windows and walls, or remove the roof from a house. According to Bernoulli's principle, which of the following statements best explains why this can occur?

Accepted Answer

A) Wind blowing around and over a house creates convection currents outside the house. 
B) Wind blowing around and over a house is at a lower pressure than the air inside the house. 
C) Wind blowing around and over a house is at a higher temperature than the air inside the house. 
D) Wind blowing around and over a house creates electrostatic charges in the air around the house. 
A) Wind blowing around and over a house creates convection currents outside the house. 
B) Wind blowing around and over a house is at a lower pressure than the air inside the house. 
C) Wind blowing around and over a house is at a higher temperature than the air inside the house. 
D) Wind blowing around and over a house creates electrostatic charges in the air around the house.

Question 6

An architect knows that a home receiving a lot of exposure to the Sun will benefit from the heating effects of sunlight if there is a lot of glass in the home's design. By which of the following methods will sunlight heat the home?

Accepted Answer

A) conduction 
B) convection 
C) evaporation 
D) radiation 
A) conduction 
B) convection 
C) evaporation 
D) radiation

Question 7

What occurs in a fiber-optic cable to allow light to transmit information?

Accepted Answer

A) boundary scattering 
B) energy dissipation 
C) surface interference 
D) total internal reflection 
A) boundary scattering 
B) energy dissipation 
C) surface interference 
D) total internal reflection

Question 8

Building codes for single-family homes regulate the heights of chimneys.Which of the following is the most likely reason for this regulation?

Accepted Answer

A) to make sure the best materials are used to build chimneys 
B) to make sure chimneys can hold the maximum amount of heat 
C) to make sure chimneys are strong enough to help support the house 
D) to make sure dangerous gases are properly ventilated through chimneys 
A) to make sure the best materials are used to build chimneys 
B) to make sure chimneys can hold the maximum amount of heat 
C) to make sure chimneys are strong enough to help support the house 
D) to make sure dangerous gases are properly ventilated through chimneys

Question 9

An engineer suggests using a robotic system to manufacture a particular chemical. Although the chemical will be highly profitable, it will only be made in small amounts.Which of the following is most likely the engineer's reason for making the suggestion?

Accepted Answer

A) The robotic system can reduce the cost of materials. 
B) The robotic system can increase the cost of production. 
C) The robotic system can increase the selling price of the chemical. 
D) The robotic system can reduce workers' exposure to potentially harmful chemicals. 
A) The robotic system can reduce the cost of materials. 
B) The robotic system can increase the cost of production. 
C) The robotic system can increase the selling price of the chemical. 
D) The robotic system can reduce workers' exposure to potentially harmful chemicals.

Question 10

Which of the following processes relieves internal stress caused by hardening in a metal tool?

Accepted Answer

A) compressing 
B) extruding 
C) shearing 
D) tempering 
A) compressing 
B) extruding 
C) shearing 
D) tempering

Question 11

An automobile company plans to develop an electric car to sell in urban areas. Which of the following will help the company evaluate the potential market for these cars?

Accepted Answer

A) field tests 
B) scale models 
C) prototype designs 
D) consumer surveys 
A) field tests 
B) scale models 
C) prototype designs 
D) consumer surveys

Question 12

Which of the following processes can be used to make an imprint of a footprint found on a trail?

Accepted Answer

A) casting 
B) extruding 
C) tempering 
D) thermosetting 
A) casting 
B) extruding 
C) tempering 
D) thermosetting

Question 13

A farmer places a sprinkler on top of a platform in the middle of a field. Water is pumped to the sprinkler from a water supply tank. The spray from the sprinkler, however, does not reach the edges of the field.Which of the following should the farmer do to increase the range of the sprinkler?

Accepted Answer

A) Place the sprinkler at ground level. 
B) Reduce the diameter of the sprinkler nozzle 
C) Move the water supply tank closer to the field. 
D) Increase the diameter of the water supply tank. 
A) Place the sprinkler at ground level. 
B) Reduce the diameter of the sprinkler nozzle 
C) Move the water supply tank closer to the field. 
D) Increase the diameter of the water supply tank.

Question 14

Which of the following is an example of an open fluid system?

Accepted Answer

A) an irrigation system for a farm 
B) a forced hot water heater for a house 
C) a hydraulic braking system for a truck 
D) a cooling system for an automobile engine 
A) an irrigation system for a farm 
B) a forced hot water heater for a house 
C) a hydraulic braking system for a truck 
D) a cooling system for an automobile engine

Question 15

Television remote controls use infrared signals to allow a viewer to change channels from a distance. Which of the following best describes the operation of the remote control?

Accepted Answer

A) decoding and storing 
B) storing and retrieving 
C) receiving and decoding 
D) encoding and transmitting 
A) decoding and storing 
B) storing and retrieving 
C) receiving and decoding 
D) encoding and transmitting

Question 16

Carlos wants to use a pneumatic system to operate an assembly line. Which of the following must be included in the pneumatic system?

Accepted Answer

A) transformers, generators, and turbines 
B) pumps, lines, and oil 
C) motors, gears, and electrical switches 
D) compressors, valves, and air 
A) transformers, generators, and turbines 
B) pumps, lines, and oil 
C) motors, gears, and electrical switches 
D) compressors, valves, and air

Question 17

Which of the following describes the primary function of an alkaline battery in the circuit of a typical flashlight?

Accepted Answer

A) It opens and closes the circuit path. 
B) It provides resistance to generate light. 
C) It converts chemical energy to electrical energy for the circuit. 
D) It serves as a conductor through which electrical energy flows. 
A) It opens and closes the circuit path. 
B) It provides resistance to generate light. 
C) It converts chemical energy to electrical energy for the circuit. 
D) It serves as a conductor through which electrical energy flows.

Question 18

An architect is designing a house to be built in Maine. Which of the following features would maximize both passive solar heating and the amount of natural light inside the house?

Accepted Answer

A) a high gable roof 
B) light-colored vinyl siding 
C) solar-electric panels on the roof 
D) a large number of south-facing windows 
A) a high gable roof 
B) light-colored vinyl siding 
C) solar-electric panels on the roof 
D) a large number of south-facing windows

Question 19

Lasers are commonly used in which of the following applications?

Accepted Answer

A) disposable film cameras 
B) eye surgery for nearsighted people 
C) power transmission over long distances 
D) TV signal transmission over coaxial cables 
A) disposable film cameras 
B) eye surgery for nearsighted people 
C) power transmission over long distances 
D) TV signal transmission over coaxial cables

Question 20

DC voltage sources have a positive (+) terminal and a negative (-) terminal. Which of the following statements explains why AC voltage sources do not have positive and negative terminals?

Accepted Answer

A) AC voltage at each terminal is always changing. 
B) AC current does not involve charged particles. 
C) AC current is safe and warning labels are not needed. 
D) AC voltage at each terminal is always higher than ground. 
A) AC voltage at each terminal is always changing. 
B) AC current does not involve charged particles. 
C) AC current is safe and warning labels are not needed. 
D) AC voltage at each terminal is always higher than ground.

In which of the following examples would a hydraulic system be useful?

Message signs and arrow boards are used to direct traffic and safeguard workers on roads and highways. These devices were originally run by dieselpowered generators.Which of the following provides a practical way to power these mobile devices and is more efficient than a generator?

Which of the following is most likely to require direct current (DC) for proper operation?

Which of the following would be the most important property to test when developing a paper filter for a coffeemaker?

During a hurricane, winds can blow out windows and walls, or remove the roof from a house. According to Bernoulli's principle, which of the following statements best explains why this can occur?

An architect knows that a home receiving a lot of exposure to the Sun will benefit from the heating effects of sunlight if there is a lot of glass in the home's design. By which of the following methods will sunlight heat the home?

What occurs in a fiber-optic cable to allow light to transmit information?

Building codes for single-family homes regulate the heights of chimneys.Which of the following is the most likely reason for this regulation?

An engineer suggests using a robotic system to manufacture a particular chemical. Although the chemical will be highly profitable, it will only be made in small amounts.Which of the following is most likely the engineer's reason for making the suggestion?

Which of the following processes relieves internal stress caused by hardening in a metal tool?

An automobile company plans to develop an electric car to sell in urban areas. Which of the following will help the company evaluate the potential market for these cars?

Which of the following processes can be used to make an imprint of a footprint found on a trail?

A farmer places a sprinkler on top of a platform in the middle of a field. Water is pumped to the sprinkler from a water supply tank. The spray from the sprinkler, however, does not reach the edges of the field.Which of the following should the farmer do to increase the range of the sprinkler?

Which of the following is an example of an open fluid system?

Television remote controls use infrared signals to allow a viewer to change channels from a distance. Which of the following best describes the operation of the remote control?

Carlos wants to use a pneumatic system to operate an assembly line. Which of the following must be included in the pneumatic system?

Which of the following describes the primary function of an alkaline battery in the circuit of a typical flashlight?

An architect is designing a house to be built in Maine. Which of the following features would maximize both passive solar heating and the amount of natural light inside the house?

Lasers are commonly used in which of the following applications?

DC voltage sources have a positive (+) terminal and a negative (-) terminal. Which of the following statements explains why AC voltage sources do not have positive and negative terminals?

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Exam 6: Technology: Technology-Engineering

In which of the following examples would a hydraulic system be useful?

Message signs and arrow boards are used to direct traffic and safeguard workers on roads and highways. These devices were originally run by dieselpowered generators.Which of the following provides a practical way to power these mobile devices and is more efficient than a generator?

Which of the following is most likely to require direct current (DC) for proper operation?

Which of the following would be the most important property to test when developing a paper filter for a coffeemaker?

During a hurricane, winds can blow out windows and walls, or remove the roof from a house. According to Bernoulli's principle, which of the following statements best explains why this can occur?

An architect knows that a home receiving a lot of exposure to the Sun will benefit from the heating effects of sunlight if there is a lot of glass in the home's design. By which of the following methods will sunlight heat the home?

What occurs in a fiber-optic cable to allow light to transmit information?

Building codes for single-family homes regulate the heights of chimneys.Which of the following is the most likely reason for this regulation?

An engineer suggests using a robotic system to manufacture a particular chemical. Although the chemical will be highly profitable, it will only be made in small amounts.Which of the following is most likely the engineer's reason for making the suggestion?

Which of the following processes relieves internal stress caused by hardening in a metal tool?

An automobile company plans to develop an electric car to sell in urban areas. Which of the following will help the company evaluate the potential market for these cars?

Which of the following processes can be used to make an imprint of a footprint found on a trail?

A farmer places a sprinkler on top of a platform in the middle of a field. Water is pumped to the sprinkler from a water supply tank. The spray from the sprinkler, however, does not reach the edges of the field.Which of the following should the farmer do to increase the range of the sprinkler?

Which of the following is an example of an open fluid system?

Television remote controls use infrared signals to allow a viewer to change channels from a distance. Which of the following best describes the operation of the remote control?

Carlos wants to use a pneumatic system to operate an assembly line. Which of the following must be included in the pneumatic system?

Which of the following describes the primary function of an alkaline battery in the circuit of a typical flashlight?

An architect is designing a house to be built in Maine. Which of the following features would maximize both passive solar heating and the amount of natural light inside the house?

Lasers are commonly used in which of the following applications?

DC voltage sources have a positive (+) terminal and a negative (-) terminal. Which of the following statements explains why AC voltage sources do not have positive and negative terminals?

Math: Basic Math

Math: Math Tricks

Math: Mathematics Easy

Math: Mathematics Intermediate

Math: Mathematics Advanced

Technology: Palladium: Properties, Uses, and Mining Methods

Science

Filters