Stability of a technological system is influenced by components in the system, especially those in the:

• troubleshooting phase.

• feedback loop.

• test phase.

• communication gap.

The stability of a system can be improved with appropriate:

• feedback mechanisms.

• cross circuits.

• one-way communication.

• twist analysis.

More knowledge or competing technologies cause a design to:

• improve with time.

• change with time.

• decrease in effectiveness with time.

• remain the same.

Industrial spying to obtain illegal information is an example of:

• optimization.

• technology transfer.

• information technology.

• patenting.

Which scenario is an example of students using systems thinking?

• Students discuss a problem, brainstorm creative ideas to solve it, and come up with a mutually agreed-upon solution.

• Students discuss a problem, brainstorm creative ways to solve it, and decide it is not their problem.

• Students discuss a problem and ask a peer to give them a solution.

• Students argue about a problem and decide Sue probably has the right answer because she is smarter.

A computer mouse communicating to a computer monitor is an example of what kind of loop system?

• Communication

• Open loop

• Translation

• Closed loop

An example of a device that uses a feedback loop is:

• a hair dryer with multiple settings.

• an alarm clock.

• an intercom.

• a coffeepot that turns itself off after 15 minutes

The part of a system that gives information concerning the operation of the system is known as:

• feedback.

• output.

• process.

• input.

What are the four components of a closed-loop program?

• Input, output, process, and feedback

• Input, process, output, and test

• Output, feedback, process, and knowledge

• Input, output, remember, and feedback

Which part of a system indicates whether something is malfunctioning?

• Input

• Output

• Feedback

• Price