Lesson 10 Electronics

Which of the following is NOT part of a vacuum tube?

• anode

• cathode

• diode

• filament

The third element in a triode is called the

• control grid

• rectifier

• grid bias

• insulator

Most photoelectric control circuits made today do NOT use

• integrated circuits

• transistors

• electrons

• vacuum tubes

A material with more resistance than a conductor, but less than an insulator, is called a(n)

• chemical element

• semiconductor

• donor

• n-type material

In n-type material, conduction occurs by means of

• hole movement

• amplification

• electron movement

• cutoff bias

If the positive terminal of a battery is connected to the anode, and the negative terminal is connected to the cathode, will the diode conduct?

• yes

• no

• maybe

• impossible to tell

The maximum current a diode can conduct for 1 second is called the

• peak rectified current

• average rectified current

• forward voltage

• surge current

The center of a transistor is called the

• base

• collector

• diode

• emitter

The reasons for reducing the size of electronic equipment do NOT include saving

• power

• time

• weight

• steps

An integrated circuit used as a miniature computer is called a(n)

• microprocessor

• transistor

• collector

• random-access memory