Analog Block Test 1

Front 1

What state is this transistor in?

Back 1

Saturation

Front 2

A transistor with input current on the Emitter and output current on the Collector uses which gain relationship?

Back 2

ALPHA

Front 3

A transistor with input current on the Base and output current on the Collector uses which gain relationship?

Back 3

BETA

Front 4

A transistor with input current on the Base and output current on the Emitter uses which gain relationship?

Back 4

GAMMA

Front 5

What state is the transistor in?

Back 5

Cut-Off

Front 6

Common Amplifier with high current gain?

Back 6

Common Collector

Front 7

If the impedance of both the source and the load are exactly matched, it is known as ___________ __________?

Back 7

Impedance Matching

Front 8

When determining the static values of common emitter divide the amplifier into two of these?

Back 8

Voltage Dividers

Front 9

This Amplifier's input is applied to the base and the output is found on the collector?

Back 9

Common Emitter

Front 10

Common Collector is also known as_____________ _________?

Back 10

Emitter Follower

Front 11

This Common Amplfier has an output of 180 degree phase shift from it's input?

Back 11

Common Emitter

Front 12

The common base amplifier is also used as this type of amplifier in high frequency applications?

Back 12

Buffer

Front 13

Common amp with input on emitter and output on the collector?

Back 13

Common Base

Front 14

Current relationship with collector over emitter?

Back 14

ALPHA

Front 15

Current relationship with emitter over base?

Back 15

GAMMA

Front 16

What component can be added to the emitter leg to decrease gain?

Back 16

Swamping resistor

Front 17

Current gain is figured by the________ over ________?

Back 17

Output over Input

Front 18

This is a linear representation of the current relationship in a transistor and determines where the quiescent point of operation is?

Back 18

Load Line

Front 19

Which class of amplifiers has a quiescent current that is exactly half of its saturation value therfore maintaining an out put that never reaches cut-off or saturation?

Back 19

Class A

Front 20

How true the output signal is compared to the input signal is known as ______________?

Back 20

Fidelity

Front 21

Which class of amplifier has a base bias less than cut-off?

Back 21

Class C

Front 22

Which class of amplifier has a base bias that is the same as cut-off?

Back 22

Class B

Front 23

Which class of amplifier has a base bias that is slightly higher than cut-off?

Back 23

Class AB

Front 24

Which biasing circuitry is primarily used as a switch either enabling or disabling a signal?

Back 24

Fixed

Front 25

Which Biasing circuitry maintains a constant output throughout rapid signal variations and is the most common?

Back 25

Combination

Front 26

Which type of biasing is used for amplification, is very stable but uses two power supplies?

Back 26

Emitter Bias.

Front 27

Which type of biasing is used for amplification, is best for heat dissipation?

Back 27

Self Bias

Front 28

Which Biasing type is this?

Back 28

Emitter Bias

Front 29

Which biasing is this?

Back 29

Fixed

Front 30

Which biasing is this?

Back 30

Self Biasing

Front 31

What type of biasing is this?

Back 31

Combination Biasing

Front 32

Common Amp with High Voltage gain?

Back 32

Common Base

Front 33

Common Amp with High input impedance?

Back 33

Common Collector

Front 34

Common Amp with medium power gain?

Back 34

Common Base and Common Collector

Front 35

Common Amp with low current gain?

Back 35

Common Base

Front 36

Common Amp with low input impedance?

Back 36

Common Base

Front 37

Common Amp with high power gain?

Back 37

Common Emitter

Front 38

Common Amp with medium voltage gain?

Back 38

Common Emitter

Front 39

Common Amp with medium input impedance?

Back 39

Common Emitter

Front 40

Common Amp with medium output impedance?

Back 40

Common Emitter

Front 41

Common Amp with medium current gain?

Back 41

Common Emitter

Front 42

Common Amp with high current gain?

Back 42

Common Collector

Front 43

Common Amp with high input impedance?

Back 43

Common Collector

Front 44

Common Amp with low voltage gain?

Back 44

Common Collector

Front 45

Common Amp with high output impedance?

Back 45

Common Base

Front 46

Common Collector uses this gain relationship?

Back 46

GAMMA

Front 47

Common Base uses this gain relationship?

Back 47

ALPHA

Front 48

Common Emitter uses this gain relationship?

Back 48

BETA

Front 49

When a transistor is not properly biased and is not conducting current, it is said to be in ___________ condition?

Back 49

Cut-Off

Front 50

This is the term for a voltage potential applied to the base that is more than or equal to the knee voltage, enables the forward biasing from the base emitter?

Back 50

Transistor Base

Front 51

This part of a Bipolar Junction Transistor (BJT) is heavily doped so that it can pass a large quantity of current carriers?

Back 51

Emitter

Front 52

This part of a Bipolar Junction Transistor (BJT) is very thin and lightly doped so that it will pas most of the electrons?

Back 52

Base

Front 53

This part of a Bipolar Junction Transistor (BJT) is moderately doped but is the largest in area so that it can dissipate the heat developed by electron flow?

Back 53

Collector

Front 54

Creating a larger signal is known as?

Back 54

Amplification

Front 55

Transistors are said to be controlled by _________?

Back 55

Current

Front 56

The two types of transistors?

Back 56

Field-Effect Transistor (FET) and Bipolar Junction Transistor (BJT)

Front 57

When a transistor is properly conducting and considered to be in a static state is known as________?

Back 57

Quiescence

Front 58

The amount by which an electrical signal is increased or decreased?

Back 58

Gain

Front 59

The number of electrons on the valence shell of a semiconductor?

Back 59

4

Front 60

Solid state devices are used for?

Back 60

Rectification (AC to DC w/ Diodes)
Amplification
Oscillation
Timing
Switching
Sensing

Front 61

The two types of current flow are?

Back 61

Electron flow (- to +)
Hole Flow/ conventional flow (+ to-)

Front 62

The two most common semiconductors?

Back 62

Silicon Si
Germainium Ge

Front 63

On an analog meter a diode will show a relationship of ________ to ________ from reverse to forward bias?

Back 63

10 to 1

Front 64

The two types of Bipolar Junction Transistors are?

Back 64

Positive Negative Positive (PNP arrow pointed in)
Negative Positive Negative (NPN arrow not pointed in)

Front 65

In schematics what letter stands for a transistor?

Back 65

Q

Front 66

On BJT controlling current is on the____________?

Back 66

Base

Front 67

On BJT controled current is on the____________?

Back 67

Collector

Front 68

An NPN transistor needs what to operate?

Back 68

Transistor Base Voltage
Base-Emitter Forward Bias
Collector Current

Front 69

When an transistor has base voltage, base-emitter forward bias, and collector current it is said to be in __________ state?

Back 69

Quiescence

Front 70

What is the current relationship for the DC biasing current?

Back 70

Emitter=100%
Collector=95%-98%
Base=2%-5%

Front 71

Impedance matching device used to match a low impedance load?

Back 71

Common Collector

Front 72

When frequency is too low _______ reduces gain?

Back 72

Capacitor

Front 73

When frequency is too high _______ reduces gain

Back 73

Transistor

Front 74

_________ amps are special amps that use two transistors biased class B to accurately transfer the input power to the load with the best efficiency.

Back 74

Push Pull

Front 75

Charecteristics of a push pull amp ?

Back 75

Low Distortion
Low output Impedance
High current gain
High Effeciency

Front 76

The common emitter configuration of the push-pull amplifier utilizes the advantages of what impedance matching components

Back 76

Transformers

Front 77

Both transistors of a push-pull are biased at ________

Back 77

Cut-off

Front 78

The design of the push-pull amplifiers eliminates _________ to a minimum?

Back 78

Cross-over Distortion

Front 79

Common collector push pull amplifiers are also known as_________.

Back 79

Complimentary symmetry

Front 80

Complimentary symmetry push-pull amplifiers' transistors are_______?

Back 80

1 pnp
1 npn

Front 81

Common emitter push-pull amplifiers' transistors are _________?

Back 81

2pnp or 2npn

Front 82

What do coupling caps do in an amplifier circuit?

Back 82

Allow AC to pass and block DC

Front 83

If gain is unknown of a cascade amplifier it is assumed to be__________?

Back 83

10

Front 84

________ can cause a change in quiescence values and amplification.

Back 84

Loading

Front 85

T/F
The output of one amplifier providing the input to another amplifier is called cascade?

Back 85

True

Front 86

__ ______ is the most common method of coupling, is inexpensive.

Back 86

RC Coupling

Front 87

What are the two major concerns of a high gain amplifier?

Back 87

Stability and predictability.

Front 88

The transistor and its associated components in a cascade amplifier are known as ___________?

Back 88

stage

Front 89

What are the four types of coupling methods used for multistage amplifiers

Back 89

RC, LC, Transformer, Direct

Front 90

Which coupling method has superior impedance mathching and is used for isolation?

Back 90

Transformer

Front 91

Low frequency coupling method is?

Back 91

Direct

Front 92

Many voltage regulators in today's fast evolving electronics world have become _________

Back 92

Integrated (Zener and transistor)

Front 93

Name the different circuits of a power supply, explain the waveform and give the primary component.

Back 93

Input= AC wave/AC wave, Transfomer
Rectifier= AC wave/Pulsating DC, Diode
Filter= Pulsating DC/Ripple DC Capacitor/Inductor
Regulator=Ripple DC/Smooth DC Zener Diode, Transistor
Protection=Smooth DC/Smooth DC Fuse or Circuit Breaker.

Front 94

It is often an adantage to use a ____________ in a regulator circuit to handle higher current restrictions an linear operation to maintain a more constant output voltage.

Back 94

Transistor

Front 95

___________ provide control of output voltage.

Back 95

Zener Diode

Front 96

____________ circuit maintains a contant outputvoltage within certain pre-defined limits.

Back 96

Regulator

Front 97

The regulator circuit elimnate voltage ____________ caused by input or load.

Back 97

Variation

Front 98

List the four charecteristics of a zener diode.

Back 98

Semi conductor material
Work in reverse bias
Used as regulators
Provide control for output voltage

Front 99

What is different about R1 in a Voltage Regulator and Current Regulator?

Back 99

Voltage Regulator R1 in Parrellel
Current Regulator R1 in Series

Front 100

A circuit that prevents further damage to the external circuit and prevents damage to the power supply is know as a ____________.

Back 100

Current Limiter

Front 101

A__________ is a signal device that uses two transistor.

Back 101

Darlington Pair

Front 102

In a darlington pair, the difference in _________ between the base and emitter is 1.2.

Back 102

Voltage

Front 103

The final collector current through a darlington pair to equal to a factor of ________.

Back 103

beta squared

Front 104

When _____________ occurs, regulation is lost because it is impossible to hold both voltage and current constant under changing load conditions.

Back 104

Fold-Back

Front 105

Any sigle transistor or darlington pair that is conected in series to the load so all the current must go throught it is know as a _______________.

Back 105

Pass Transistor.

Front 106

The first resistor in current regulator is in________ and is used as a _________ resistor.

Back 106

Series, Sensing

Front 107

What are the four troubleshooting groups on card 97? What order do you check them?

Back 107

Darlington Pair 1st
Differential Amp 2nd
Reference Regulator 3rd
Out Volt. Divider 4th