INTRO TO DIGITAL ELECTRONICS

Which of the following involve analog quantities ?

• ten-position switch

• current flowing out of an electrical outlet

• automobile speedometer numerical type

Any number with an exponent of zero is equal to

• zero

• one

• that number

• ten

Which of the following statements does NOT describe an advantage of digital technology?

• The values may vary over a continuous range.

• The circuits are less affected by noise

• The operation can be programmed.

• Information storage is easy.

What are the symbols used to represent digits in the binary number system?

• 0,1

• 0,1,2

• 0 through 8

• 1,2

Which of the following is not an analog device?

• Thermocouple

• Current flow in a circuit

• Light switch

• Audio microphone

Temperature variation is normally an analog quantity.

• true

• false

A digital quantity has a discrete set of values.

• true

• false

Telecommunications systems do not use digital techniques.

• true

• false

The real world is mainly analog.

• true

• false

Binary means having two states or values

• true

• false