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Question

What is an example of a control that portrays the underlying state it controls by its physical appearance?

a.

Push button for power on computers and hifi devices

b.

Multi-function knob on a washing machine

c.

Smooth plastic controls on a microwave

d.

On/off switch

Answer: (d).On/off switch Explanation:A simple on/off switch is an example of a control that portrays the underlying state it controls by its physical appearance.

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Q. What is an example of a control that portrays the underlying state it controls by its physical appearance?

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