Exam 6: Technology: Technology-Engineering

Which of the following describes how power is transferred in hydraulic and pneumatic systems?

An exchange student in Europe calls a friend in Boston. The call travels through a fiberoptic cable under the ocean. Which of the following components of the communications system converts the student's voice into light pulses that can be carried through the fiberoptic cable?

Which of the following statements best describes the functioning of an encoder in a mobile phone?

In a circuit, an electrician replaces a 4 ft. section of wire with a wire that has a larger diameter. This change in wire diameter will cause which of the following results?

Audio signals in MP3 players are stored in digital form. In order for these signals to be heard through headphones or speakers, the digitally stored data is converted by which of the following components?

When calculators were first introduced, they were large and not very portable. Which of the following allowed for the development of pocket-size calculators?

Which of the following statements best describes how mineral deposits on the interior surface of a water pipe affect the flow of water through the pipe?

When checking e-mail, Maria accesses a powerful computer called a server. The number of messages she can have in an account on the server is primarily limited by which of the following?

Which of the following materials would probably be used as a conductor of electric current in a computer chip?

Telephone circuits were originally made of copper. Which of the following has replaced much of the copper circuitry that connected telephone switching stations over long distances?

A manufacturing company wants to increase its production. Which of the following is the best reason why the company should consider using robotic systems?

The floor of a particular motel room should be able to support 50 lb. per sq. ft. of live load. If the dimensions of the room are 12 ft. * 15 ft., what is the total live load that the floor should support?

Which of the following is used to read a compact disc in a compact disc player?

In one type of home air conditioner thermostat, the case of the temperature sensor is made of metal. Which of the following is the best reason for using metal?

Which of the following will offer the most resistance to water flow?

Digital information is transmitted over fiberoptic cable as pulses of which of the following?

In the winter, heavy curtains are often hung in front of windows. What effect do these curtains have on heat transfer?

In a factory that manufactures automobiles, some workers have the job of installing doors on the cars. Which part of the manufacturing process is this job?

Which of the following acts primarily as a storage device in a communication system?

Which of the following is the best example of a transmitter functioning in a communication system?