A to C

Question 0

Dissipation of radio or sound waves as they interact with matter.
The absorbing of light waves without reflection or refraction.

Answer 0

absorption

Question 1

The ability of the magnetic tape to wear the head

Answer 1

abrasivity

Question 2

the amount of time between the time a request is made from a storage device is made and the time the data is delivered.

Answer 2

access Time

Question 3

Operational phase of a fire-control mechanism during which the radar system searches a small volume of space in a prearranged pattern.

Answer 3

Acquisition

Question 4

The part of a switch that is acted upon to cause the switch to change contact connections; for example, toggle, pushbutton, and rocker.

Answer 4

Actuator

Question 5

Any material in the coating of a magnetic tape other than the oxide and binder resin.

Answer 5

Additive

Question 6

The emitter-to-collector current gain in a common-base circuit

Answer 6

Alpha

Question 7

The movement of Aluminum wire from a point where pressure is applied.
The retreat of heated aluminum wire as it cools.

Answer 7

Aluminum Creep

Question 8

Echoes that exceed the prt of a radar and appear at incorrect ranges.

Answer 8

Ambiguous Returns

Question 9

A special dc generator in which a small voltage applied to the field windings controls a large output voltage from the generator. In effect, it becomes a rotary amplifier that often times produces gains of approximately 10,000.

Answer 9

Amplidyne

Question 10

The angular difference between the equatorial plane of the earth and the plane of orbit of the satellite.

Answer 10

Angle of inclination

Question 11

The value of 1 angstrom.

Answer 11

1x10^-10

Question 12

A positive electrode of an electrochemical device toward which the negative ions are drawn.

Answer 12

Anode

Question 13

A device used for impedance matching between an antenna and a transmitter or receiver.

Answer 13

Antenna Coupler

Question 14

An electronic circuit used to minimize the effects of enemy countermeasures thereby permitting radar echoes to be visible on the indicator.

Answer 14

Anti-Jamming Circuit

Question 15

The effect of the earth’s rotation on a gyro that causes the spinning axis to appear to make one complete rotation in one day. AKA APPARENT PRECESSION or APPARENT ROTATION.

Answer 15

Apparent Drift

Question 16

The power apparently available for use in an ac circuit containing a reactive element. it is the product of effective voltage times effective current expressed in volt-amperes. It must be multiplied by the power factor to obtain true power available

Answer 16

Apparent Power

Question 17

The part of a circuit breaker that confines and divides the arc which occurs when the contact of the circuit breaker opens.

Answer 17

Arc Extinguisher

Question 18

Copper losses, eddy current losses, and hysteresis losses that act to decrease the efficiency of armatures.

Answer 18

Armature Losses

Question 19

An LC network that is designed to simulate the characteristics of a transmission line.

Answer 19

Artificial Transmission Line

Question 20

A computer program that translates source programs written in assembly language into machine language (object) programs.

Answer 20

Assembler

Question 21

A low-level, machine oriented programming language in which each instruction (written as a mnemonic) translates into a single machine language (computer) instruction.

Answer 21

Assembly language

Question 22

A multivibrator that has no stable state. Also called free-running because it alternates between two different output voltage levels during the time that it is on. The frequency is determined by the RC time constant of the coupling circuit.

Answer 22

Astable Multivibrator

Question 23

A multivibrator that generates rectangular waves.

Answer 23

Asymmetrical Multivibrator

Question 24

The ability of a filter circuit to make reduce the amplitude of unwanted frequencies to a level below that of the desired frequency.

Answer 24

Attenuation

Question 25

Tracking done by equipment that compares the direction of the antenna axis and the direction of the received signal and uses the difference (error) signal to reposition the antenna.

Answer 25

Automatic Tracking

Question 26

The peripheral equipment or devices that may or may not be in direct communication with the central processing unit of a computer.

Answer 26

Auxiliary Equipment

Question 27

A reverse breakdown effect in diodes that occurs at reverse voltages beyond 5 volts. The released electrons are accelerated by the electric field, which results in a release of more electrons in a chain.

Answer 27

Avalanche Effect

Question 28

Angular measurement in the horizontal plane in a clockwise direction

Answer 28

Azimuth

Question 29

The larger resistance value observed when you are checking the resistance of a semiconductor.

Answer 29

Back Resistance

Question 30

A waveguide arrangement that resembles a T and uses crystals for coupling the output to a balanced transformer.

Answer 30

Balanced Mixer | AKA MAGIC T

Question 31

The difference between the highest usable frequency of a device and the lowest usable frequency of the device - measured at the half-power points

Answer 31

Bandwidth

Question 32

A measurement of speed based on the number of code elements or units per second

Answer 32

Baud

Question 33

The ration of a change in collector current to a corresponding change in base current when the collector voltage is constant in a common-emitter circuit

Answer 33

Beta

Question 34

The reference color of equipment that passes unclassified information. It normally refers to patch panels

Answer 34

Black

Question 35

The current through a bleeder resistor. In a voltage divider, it is usually determined by the 10 PERCENT RULE OF THUMB.

Answer 35

Bleeder Current

Question 36

a condition in an amplifier, caused by over driving one or more stages, in which the amplifier is insensitive to small signals immediately after reception of a large signal

Answer 36

Blocking

Question 37

A loading device that undergoes changes in resistance as changes in dissipated power occur

Answer 37

Bolometer

Question 38

The phenomenon occurring in a reverse-biased semiconductor diode. The start of the phenomenon is observed as a transition from a high dynamic resistance to one of substantially lower dynamic resistance. This is done to boost the reverse current.

Answer 38

Breakdown

Question 39

The relative elongation of a specimen of magnetic tape of base film at the instant of breaking when it has been stretched at a given rate

Answer 39

Break elongation

Question 40

The name given the potentiometer used to vary the potential applied to the control grid of a CRT

Answer 40

Brightness Controll

Question 41

Sliding contacts, usually carbon, that make electrical connection the rotating part of a motor or generator

Answer 41

Brushes

Question 42

A voltage amplifier used between the oscillator and power amplifier

Answer 42

Buffer

Question 43

An amplifier that isolates one circtui from another. It decreases the loading effect on an oscillator by reducing the interaction between the load and the oscillator

Answer 43

Buffer Amplifier

Question 44

A mistake in a program

Answer 44

BUG

Question 45

An equipment for erasing a full reel of previously recorded signals on tape

Answer 45

Bulk Eraser (Degausser)

Question 46

Tool used to clean and polish contacts on a relay

Answer 46

Burnishing Tool

Question 47

A heavy copper strap or bar used to connect several circuits together when a large current-carrying capacity is required

Answer 47

Bus Bar

Question 48

A device that measures rf power by measuring the heat the rf power generates

Answer 48

Calorimeter

Question 49

The property of an electrical circuit that opposes changes in voltage

Answer 49

Capacitance

Question 50

This filter is used on extremely high-voltage, low-current power supplies and also where the ripple frequency is not critical

Answer 50

Capacitor filter

Question 51

A microphone in which sound waves vary the resistance of a pile of carbon granules. May be single-button or double-button.

Answer 51

Carbon Microphone

Question 52

An electron tube that has an electron gun, a deflection system, and a screen. This tube is used to display visual electronic signals

Answer 52

Cathode-Ray Tube (CRT)

Question 53

A space totally enclosed by a metallic conductor and supplied with energy in such a way that it becomes a source of electromagnetic oscillations .The size and shape of the enclosure determines the resonant frequency.

Answer 53

Cavity Resonator

Question 54

A single unit that transforms chemical energy into electrical energy.

Answer 54

Cell

Question 55

Connecting the center of an antenna to a transmission line which is then connected to the final (output) stage of the transmitter

Answer 55

Center Feed Method

Question 56

A unit of volume of large rectangular or square conductors. The cross-sectional area equals 1 square centimeter with a length of 1 centimeter.

Answer 56

Centimeter Cube

Question 57

The part of the computer hardware that directs the sequence of operations, interprets the coded instructions.

Answer 57

Central Processing Unit (CPU)

Question 58

A letter, digit, or other symbol that is used as part of the organization, control, or representation of infromation

Answer 58

Character

Question 59

The ratio of voltage to current at any given point on a transmission line represented by a value of impedance

Answer 59

Characteristic impedance

Question 60

An inductor used to impede the flow of pulsating dc or ac by means of self-inductance.

Answer 60

Choke

Question 61

An area equal to that of a circle with a diameter of 0.001 inch. It is used for measuring the cross-sectional area of wires.

Answer 61

Circular Mil

Question 62

A circuit in which either the upper or lower extremity of a waveform is fixed at a desired value

Answer 62

Clamper

Question 63

The type of operation in which the amplifier is biased so that variation in input signal polarities occur tight the limits of cutoff and saturation

Answer 63

Class A Amplifier Operation

Question 64

The type of operation in which the amplifier is biased so that collector current is cutoff for a portion of the alternation of the input signal.

Answer 64

Class AB Amplifier operation

Question 65

The type of operation in which the amplifier is biased so that collector current cutoff for one-half of the input signal

Answer 65

Class B Amplifier Operation

Question 66

The type of operation in which the amplifier is biased so that collector current is cutoff fore more than one-half of the input signal

Answer 66

Class C Amplifier Operation

Question 67

Confusing, unwanted echoes that interfere with the observation of desired signals on a radar indicator

Answer 67

Clutter

Question 68

A high-level programming language designed for business-type applications

Answer 68

COBOL (COmmon Business Oriented Language)

Question 69

In teletypewriter operation, code is a combination of mark and space conditions representing symbols, figures, or letters.

Answer 69

CODE

Question 70

An inductive device made by looping turns of wire around a core.

Answer 70

Coil

Question 71

The element in a transistor that collects the current carriers

Answer 71

Collector

Question 72

A program that translates source programs written in a high-level programming language (COBOL or FORTRAN) into machine language

Answer 72

Compiler

Question 73

Cable in which the center conductor is separated from an outer conductor by a dielectric material; used in rf transmission

Answer 73

Coaxial Cable

Question 74

A mechanical device that reverses armature connections in motors and generators at the proper instant so that the current continues to flow in only one direction. In effect, the commutator changes ac to dc.

Answer 74

Commutator

Question 75

An equipment that compares incoming signals and selects the strongest to be fed to a teletypewriter through a patch panel. This is used in diversity operation.

Answer 75

Comparator

Question 76

A number or state that is the opposite of a specified number of states.

Answer 76

Complement

Question 77

Complementary (secondary) colors of light

Answer 77

Magenta, Yellow and Cyan.

Question 78

Longitudeinal (SOUND WAVES) waves that have been compressed more dense) as they move away from the scource

Answer 78

Compression Waves

Question 79

The ability of a material to conduct or carry an electric current. It is the reciprocal of the resistance of the material and is expressed in mhos or siemens

Answer 79

Conductance

Question 80

In radar, an object that reflects rf energy; target

Answer 80

contact

Question 81

In communications, equipment that changes the audio output of a receiver to dc pulses. These pulses are fed to a tty to indicate marks and spaces

Answer 81

Converter

Question 82

A mechanical magnetron tuning device that changes the frequency by changing the capacitance of the anode cavities

Answer 82

Cookie-cutter tuner

Question 83

A half-wave antenna with a reflector consisting of two flat metal surfaces meeting at an angle behind the radiator

Answer 83

Corner-reflector antenna

Question 84

Includes location and repair of equipment failures

Answer 84

Corrective maintaenance

Question 85

Coulomb's law states that charged bodies attract or repel each other with a force that is directly proportional to the product of their individual charges and inversely proportional to the square of the distance between them.

Answer 85

Attraction

Question 86

A circuit that counts input pulses

Answer 86

Counter

Question 87

The voltage generated within a coil by a moving magnetic field cutting across the coil itself. This voltage is in position (counter) to the moving field that created it. Counter emf is present in every motor, generator, transformer, or other inductance winding whenever an alternating current flows.

Answer 87

Counter EMF

Question 88

A network of wire connected to a quarter-wave antenna at one end. The network provides the equivalent of an additional one-fourth wavelength.

Answer 88

Counterpoise

Question 89

The process of transferring energy from one point in a circuit to another point, or from one circuit to antoher

Answer 89

Coupling

Question 90

A capacitor used to couple signals

Answer 90

Coupling Capacitor

Question 91

A coupling coil that connects the transmitter to the feeder

Answer 91

Coupling Device

Question 92

A type of linkage between atoms in which the atoms share valence electrons

Answer 92

Covalent Bond

Question 93

The maximum angle at which radio waves can be transmitted and still be reflected back to earth

Answer 93

Critical Angle

Question 94

The maximum frequency at which a radio wave can be transmitted vertically and still be refracted back to earth

Answer 94

Critical Frequency

Question 95

A natural substance, such as quartz or tourmaline, that is capable of producing a voltage when under physical stress or of producing physical movement when a voltage is applied.

Answer 95

Crystal

Question 96

The safe current-carrying capacity of a wire or cable on a continuous basis

Answer 96

Current Rating

Question 97

A pointer (a dot of light) on a crt screen to let you know the next position in which data will be entered. By depressing cursor control keys, the operator can move the cursor from line to line and from character to character.

Answer 97

Cursor

Question 98

The condition in a tube or transistor whereby the reverse bias prevents current flow

Answer 98

Cutoff

Question 99

One complete positive and one complete negative alternation of a current or voltage. A 360-degree rotation of vector generating a sine wave.

Answer 99

Cycle