Q.1

A bipolar transistor has three leads: the base, collector, and emitter.

  • True
  • False
Q.2

The voltage gain of a transistor is inversely proportional to the change in output current.

  • True
  • False
Q.3

A transistor used in a digital circuit will have two operating states, which are cutoff and saturation.

  • True
  • False
Q.4

Which is the higher gain provided by a C-E configuration?

  • voltage
  • current
  • resistance
  • power
Q.5

With the positive probe on an NPN base, an ohmmeter reading between the other transistor terminals should be:

  • open
  • infinite
  • low resistance
  • high resistance
Q.6

Which is beta's current ratio?

  • IC/IB
  • IC/IE
  • IB/IE
  • IE/IB
Q.7

VCE approximately equals ________ when a transistor switch is in saturation.

  • VC
  • VB
  • 0.3 V
  • 0.7 V
Q.8

A common-emitter (C-E) is so called because the emitter is connected to both the input and output signals.

  • True
  • False
Q.9

The phase difference between the input and output ac voltage signals of a common-emitter amplifier is __________.

  • 90º
  • 180º
  • 360º
Q.10

The three bipolar transistor circuit configurations are common-base, common-emitter, and emitter-follower.

  • True
  • False
Q.11

An emitter-follower has a voltage gain that is __________.

  • much less than one
  • approximately equal to one
  • greater than one
  • zero
Q.12

Base bias provides _________.

  • a very stable Q point
  • a very unstable Q point
  • no current gain
  • zero current in the base and collector circuits
Q.13

With a common-collector (C-C) amplifier the input is applied to the base and the output is taken from the emitter.

  • True
  • False
Q.14

When troubleshooting a bipolar junction transistor using an ohmmeter, if one of the junctions reads low in both directions, the junction is shorted and the transistor is bad. If one of the junctions reads high in both directions, the junction is shorted and the transistor is good.

  • True
  • False
Q.15

VCE approximately equals ________ when a transistor switch is cut off.

  • VCC
  • VB
  • 0.2 V
  • 0.7 V
Q.16

A transistor used in a digital circuit will have two operating states, which are cutoff and saturation.

  • True
  • False
Q.17

An emitter-follower has a voltage gain that is __________.

  • much less than one
  • approximately equal to one
  • greater than one
  • zero
Q.18

A common-emitter (C-E) is so called because the emitter is connected to both the input and output signals.

  • True
  • False
Q.19

A transistor used in a digital circuit will have two operating states, which are cutoff and saturation.

  • True
  • False
Q.20

The input resistance, Rin of a common-collector amplifier, consists of ____________.

  • Rin = RE × AC Current Gain
    fba12_1009b1.gif
    alpha.gif
  • fba12_1009b1.gif
  • Rin = RE × alpha.gif
  • none of the above
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