Term
What are the 3 types of Digitial Storage O-Scope acquisition modes & what is the stadard operating mode? |
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Definition
Sample, Peak Detect, and Averaging. Sample |
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Term
What is the first step in basic Bit Error Rate Testing procedure? |
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Definition
A known bit pattern, usually pseudo random, is generated and compared. |
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Term
Which probe does not actually need to make contact with the circuit under test? |
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Definition
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Term
What type of Megohmeter do you use on proper insulated conductor cable? |
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Definition
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Term
Using Longitudal Redundancy Check method of error correction, what does the reciever compare with the tranciever to ensure an accurate transmission of data? |
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Definition
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Term
Which O-Scope Probe is essentially just a shielded piece of wire? |
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Definition
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Term
What digital storage O-Scope circuit compensates for high sampling rates of High F signals? |
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Definition
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Term
What pattern simulator section of the BERT set converts the NRZ-L data into the desired coding such as NRZ-M? |
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Definition
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Term
Which mode of triggering an O-SCope causes a trace to appear on the screen at all times, wether there is an input signal or not? |
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Definition
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Term
What is the primary means of measuring the quality of the transmitted digital information & how is this means derived? |
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Definition
(BER) Bir Error Rate. The ratio of the number of bits in error to the total number of bits trnsmitted. |
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Term
What pattern simulator section of the BERT set acepts a 48 but parallel word & genertaes a serial pattern? |
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Definition
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Term
What pattern simulator section of a BERT set controls the clock selector & selects the external clock or the internal clock for processing? |
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Definition
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Term
In the internal clock generator of a typical BERT set, what generates the clock? |
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Definition
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Term
Most fiber optic links use infared lights with a frequency range of...? |
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Definition
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Term
Non-uniform quantizing and compounding decreases the length of the code word from...? |
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Definition
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Term
What data circuit speed would use shorter generated bits & at what speed? |
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Definition
Low to Intermediate, 1200-9600bps |
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Term
The most useful way to classify fiber optic cable is by...? |
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Definition
Refractive index & number of modes |
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Term
Low insulation Resistance between conductors can cause what? |
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Definition
High Attenuation, crosstalk, and noise |
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Term
What type of fiber has a core diameter of 50-125 um & has a multiglass layer with rings simlar to a tree |
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Definition
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Term
What part of the pilse code modulation process coverts a continuos time signal into a discrete time signal. |
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Definition
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Term
What is the first step in Pulse Code Modulation |
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Definition
The signal is Band-Limited |
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Term
By using PSK instead of Binary Phase Shift keying, information capacity is increaed by how much? |
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Definition
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Term
In FM, the amount of oscillator fequency change is...? |
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Definition
Directly proportional to the amplitude change in the modulating signal. |
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Term
The output of the oscillator in a FM modulator increases in frequency with each...? |
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Definition
Positive half cycle of the modulating signal. |
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Term
What pupose of Modulation involves teh modulating low frequency signal for transmission over long distances? |
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Definition
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Term
What purpose of modulation prevents interference when sharing the same communication path? |
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Definition
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Term
What factor determines the spacing of the sidebads in an AM signal? |
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Definition
Frequency of the Modulating SIgnal |
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Term
A 10 KHz modulating signal has produced enough peak voltage to cause a deviation of 30 Khz. What is the modulation index? |
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Definition
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Term
What is the formula for determining the modulating index? |
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Definition
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Term
In PM the carriers phase is hifted at the rate of ...? |
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Definition
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Term
By using 16PSK how many bit combinations are allowed to be used? |
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Definition
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Term
How does Synchronous transmission reduce overhead costs of data transmission?` |
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Definition
It blocks many characters together for tansmission |
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Term
When using VRC, what signifigance does the amount of 1's have in a data bit pattern. |
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Definition
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Term
What 2 error detection methods, when used together are 98% effective in detecting errors? |
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Definition
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Term
What error detection method is used for checking a data block greater than 512 & is about 99% effective in most applications? |
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Definition
CRC(Cyclic Redundancy Check) |
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Term
When using forward error control as a method of error correction, where dies the error correction take place? |
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Definition
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Term
What type of buffer allows the fiber optic cable to be twisted or pulled with little stress on the fiber? |
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Definition
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Term
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Definition
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Term
Propagation as seen by Snells law is known as...? |
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Definition
Total Internal Reflection |
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Term
What Logarythmic expression do we use to specify the ratio of power loss in fiber optic cable? |
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Definition
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Term
What results from imperfection in an optical fiber's basic structure? |
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Definition
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Term
What type of fiber is least effeciant & has a core diameter of 30um to over 800um? |
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Definition
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Term
Which analog multimet control compensates for the voltage of the internal batteries when calibrating for resistance measurment? |
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Definition
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Term
When you make a resistance measurment, how do you electrtically isolate a resistor from the circuit? |
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Definition
Disconnect one side of the resistor |
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Term
How do you place multimeter test leads in a cicuit ot measure voltage? |
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Definition
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Term
In which type of circuit would you measure the AC component of an output voltage where both AC & DC voltage levels exist? |
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Definition
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Term
Which feature of the Fluke 805A Mulitimeter do you use to slect various meausurment functions> |
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Definition
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Term
Which feature of the Fluike 805A locks the meaurment into display for viewing? |
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Definition
The Touch/Hold puch button |
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Term
When using the Fluke 805A, which range would you select to measure 50 Volts DC? |
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Definition
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Term
With what values do we measure insulation resistance? |
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Definition
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Term
Isulation resistance increases if...? |
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Definition
The insulation thickness increases |
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Term
When using an PSM-2 megger, how do you know that the proper amount of voltage is being applied? |
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Definition
Turn the hand crank at a rate that keeps the indicator lights at a steady glow |
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Term
How are voltage, time, and depth represented on the O-Scope display? |
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Definition
Voltage=Vertical,Time=Horizontal, Depth=Intensity |
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Term
Which probe lets you use the O-Scope to measure higher voltage levels? |
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Definition
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Term
Smapled Data points are stored into the memory of an O-Scope as...? |
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Definition
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Term
What type of sampling does an O-Scope normally use on a signle-shot or seldom-occuring signal? |
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Definition
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Term
Which O-Scope button Controls all waveforms displayed in the STORE mode? |
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Definition
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Term
In acquiring a 4K record length, how many samples can you view at one time? |
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Definition
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Term
During a basic BERT procedure an error signal occurs if...? |
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Definition
Any bit in the recieved signal is different than the generated bit. |
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Term
What Personell Evaluation is conducted every 6 months? |
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Definition
Inter-continental Balistic Missile Communitcation |
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Term
What Evaluation is conductd to make sure technicians meet FAA Requirements? |
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Definition
Air Traffic Control & Landing Sytems Certification |
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Term
When is the term not Mission capable Maitenance appropriate? |
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Definition
When not capable of performing any of thier assigned missions because of uni level maitenance requirements. |
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Term
Workcenter personell on standby coodinate thier meal/confort breaks with what maitenace staff funtion? |
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Definition
Maitenance Operations Center |
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Term
What are the 3 components of Air Force OJT? |
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Definition
Job Knowledge, Job Proficiency, & Job Experience |
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Term
What level of Maitenance employs the highest degree of skill? |
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Definition
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Term
What Maitenance function validates the use of effective training programs, security procedures & good housekeeping standards? |
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Definition
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Term
What must QA personell do? |
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Definition
Privide assitance with technical and Management guidance so staff functions & workcenters can dectect & correct problems in early stages. |
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Term
What is the minimum amount of months required for 5-level upgrage for traniess who are not in training stautus? |
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Definition
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Term
Who develops and maintains System Records of Equipment that are integrarted with the base network. |
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Definition
Sytems Telecommunications Engineering Managment-Base |
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Term
What Catagory of Maitenance enables the Chief oF Maitenance to Coordinate & direct the maitenance effort? |
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Definition
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Term
What are the 6 Steps of Operational Risk Managment? |
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Definition
Identify the hazards, Assess the Risk, Analyze Risk Control Measures, Make Control Desicoins, Impliment Risk Controls, Supervisor & Review |
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Term
How can multiple individual task assignments be put together for multiple duty positions including additional duties? |
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Definition
An Individual Training PLan |
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Term
What ;evel of maitenance has skills not available at the operating levels but not to the extent of tech repair centers? |
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Definition
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Term
When are Senior NCOs required to have OJT records? |
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Definition
When their skill level is not consummerate with thier grade. |
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Term
What is the minimum rank to be a task certifier? |
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Definition
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Term
What type fo AFSC dhows your highest skill level? |
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Definition
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Term
What type of AFSC identifies the authorized manning position to which you're assigned & reflects the job your currently performing? |
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Definition
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Term
What is the minimum rank to be a task certifier? |
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Definition
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Term
Who is responsible for the given equipments logistics life cycle? |
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Definition
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Term
What type of AFSC is for use by the personell center for assignement & training purposes? |
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Definition
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Term
If there is a delay in Maitenance actions, who mediates between the operators and maitenance staff? |
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Definition
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Term
What serves as a unique identifier for tracking maitenance actions for an equipment malfunction? |
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Definition
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Term
What designates equipment as reportable? |
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Definition
If the equipment is mission essential |
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Term
What condition status-code do we not use with a single mission system? |
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Definition
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Term
What do we consider to be a maitenance information system? |
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Definition
Telephone Managment System |
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Term
Who is responsible for the operation of the Integrated Maitenance Data System(IMDS)? |
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Definition
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Term
What status id the smae as "Estimated time in Comission"? |
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Definition
Estimated Time of Return to Operation |
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Term
What Maitenance Staff function coordinates with support agencies & assists maitenance personell by exploiting all supply transactions? |
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Definition
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Term
What term has Expandability, Recoverability, Repairability Code (ERRC) of XD of XF? |
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Definition
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Term
What items are considered upport equipment? |
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Definition
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Term
How many primary AFSCc are in the Communication Electronics carrier field? |
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Definition
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Term
How many SMSgt 9-Level positions are in the Communication Electronics Career progression ladder? |
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Definition
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Term
What AFSC performs maitenance on fixed and mobile meterological & Navigational aid systems? |
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Definition
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Term
When will intial evaluations be done on assigned personell within a workcenter? |
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Definition
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Term
When do personell who are selected to promotion to SSgt enter 7-Level upgrade training? |
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Definition
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Term
How many hours of rest must a supervisor allow for personell? |
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Definition
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Term
What Communication Standardization & Evaluation program provides the unit commander, chief of maitenance, and supervisors with factual objective assesments of a sections ability to meet its mission requirements? |
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Definition
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Term
What personell evaluation is conducted every 24 months/48 (ANG)? |
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Definition
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Term
What are the 3 phases that are evaluated in a personell evaluation? |
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Definition
Preparation, Task Performance, Post Performance |
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Term
If a system is to co-exist with an AF LAN, what is requiered before the system can be integrated? |
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Definition
A certificate of Networthiness. |
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Term
What personell evaluation is conducted on newly assigned personell within 6 months of assingment to workcenter(12 for ANG) |
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Definition
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