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An electrical charge at rest is called
static electricity
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Triboelectrification is the
generation of static charge by friction
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In an ESD prtective area, what level of relative humidity is the most desirable
40%-60%
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The electrostatic voltage sensitive threshold of the human body is approximately
3,5000 volts
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when ESDS components are mounted on a circuit board, the
components are still susceptible to ESD damage
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it is important for serviceable and un-serviceable (reparable) ESDS items to reveive the same ESD protection so
no further ESD damage is done to the remaining operating parts
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proper static drain is fast enough to quickly remove the static charge before any damage is done, yet slow enough so it doesn't produce a damaging
discharge current
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which is not one of the three principal components of a static control workstation
static dissipative flooring
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how often must a wrist strap be tested with a wrist strap tester
Daily
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What is the proper procedure when you are testing a wrist strap with a wrist strap tester
check continuity and resistance of the entire system when you are wearing the cuff
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you must torque a bolt to 60 inch-pounds, but you only have a foot-pound torque wrench. to what value must you set the foot-pound torque wrench to properly torque the bolt?
5 foot-pounds
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when would you use a torque wrench to break loose a bolt
Never
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Which torque wrench uses micrometers-like markings and a rotating adjustment sleeve to set torque values
Type III
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You must compensate for the prevailing torque of a self-locking nut if its more than
33 (1/3) percent of a nut's recommend torque value
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you must compensate for the prevailing torque of a self-locking nut when the
technical order specifies that compensation is required
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before using a dropped torque wrench,you must
have it re calibrated
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which is not provided by TAS
tool manufacturer
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in the heterodyning or mixing process, what are the two new frequencies produced
upper sideband (sum) and lower sideband (difference)
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which radio-frequency component is used to sample and input signal and does not have any moving parts
Directional coupler
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the radio-frequency component used to prevent any feedback in a circuit is the
isolator
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the power meter
can be operated manually or automatically
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what control compensates for a slight sensitivity associated with a particular type of power sensor?
CAL ADJ
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a power sensor is essentially a
Transducer
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before a power meter can be used, the meter and power sensor must be
calibrated together
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when calibrating the power sensor, you adjust the CAL ADJ control so the digital readout indicates
1.000mW
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before turning on the power meter, ensure it is
set the match the line voltage you're using
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measuring relative power on a power meter is useful for
troubleshooting stages of a component
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each division of the oscilloscope faceplate is
one centimeter square
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the horizontal divisions of an oscilloscope faceplate are calibrates to the settings of the
TIME/DIV control
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the VAR control of an oscilloscope must be in the calibrated detent or the time measurement will be
inaccurate
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when measuring time on an oscilloscope, multiply the trace distance between reference points by the stetting of the
TIME?DIV control
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frequency is determined by the formula
F = 1/T
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a spectrum analyzer is simply a receiver with the output of
a CRT display instead of a speaker
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which control selects how much frequency band is represented by each division of a spectrum analyzer disply
FREQUENCY SPAN
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Before using the spectrum analyzer to make any measurements, you must calibrate it using the
CAL OUTPUT signal
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Which piece of test equipment is primarily used to self-calibrate devices within equipment and test stations
spectrum analyzer
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what does resolution mean in reference to a frequency counter
the degree of accuracy of the reading
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when using a pulse generator, selecting the NORM mode produces a
continuous pule output
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when using a pulse gernerator, the four control modes allow you to vary the output
pule characteristics
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when using the START FREQ function key on a sweep oscillator to select the start frequency for start/stop sweep operation, the start frequency must be at least 100 Hz lower than the
stop frequency
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when using a sweep oscillator, the sweep time has an allowable range of
10ms to +200sec
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the 115 VAC, 400 Hz facility power input to a test station originates from the
public utility line
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what type of power supply is computer-controlled to produce variable outputs
programmable
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the 400Hz facility power input to the test station is primarily used to
develop all the necessary voltage for the test station TRUs and the LRUs involved in checkout procedures
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The 60 Hz facility power input to the test station is primarily used to
provide power to cooling air blowers, measurement devices, and standard outlets
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the concept of rousing, inciting, or increasing action refers to
stimulus
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which signal generator operates in the 20 Hz to 20 KHz frequency range
audio frequency
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which signal generator operstes in the 1 GHz to 18 GHZ frequency range
microwave
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what device is designed to measure AC voltage, DC voltage, and resistance?
Digital multimeter
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providing a visual display for measuring voltage and frequency is a function of the
oscilloscope
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the concept of interconnecting UUT and test station recourses is
Switching
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overall test station switching can be classed as
stimulus and measurement
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the most important test station function is
control
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what numbering system is most widely used to allow computers to perform their functions?
Binary
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Using IEEE-488 bus, devices can be linked in either linear, combination, or
star configuration
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what is the maximum total cable length specified for the IEEE-488 bus
20 meters
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At the maximum cable length specified for the IEEE-488 bus, how many devices can be connected?
14
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what type of interface is the IEEE-488 bus
multi-drop
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how many data lines does the IEEE-488 bus have
8
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the end of identity line, which is part of the IEEE-488 bus/interface management lines, has two uses. The first part is to indicate end-of-date, and the second is to
initiate a parallel poll
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each device on the IEEE-488 bus has a unique bus address that starts at 0 and goes up to
30
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what device, usually a computer with an IEEE-488 board installed, always retains ultimate control of the bus
system controller
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what process in the MIL-STD-1553B, transmits information from several sources through one system with different signals staggered in time to form a composite pule train?
multiplexing
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up to how many units or terminals on an aircraft is the MIL-STD-1553B data bus designed to allow transfer of information between
32
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referring to the MIL-STD-1553B bus architecture, how many buss controllers may be active on a 1553 multiplexed bus?
1
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Which element that makes up the MIL-STD-1553B data bus system, is an avionics unit designed to transfer data between an aircraft component and the data bus?
remote terminal
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the data bus in the MIL-STD-1553B data bus system is made up of two types of stubs, the transformer-coupled and
direct coupled
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what is the only device that transmits a command word in the MIL-STD-1553B
bus controller
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refering to the MIL-STD-1553B data bus systems command, status, and data words, what is the only device that transmits a status word
remote terminal
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referring to the VXI bus, there are two classification of devices with respect to register capabilities, on is register base and the other
message base
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which slot of the VXI chassis has special resources suck as backplane clocks, configuration signals, and synchronization signals
Leftmost slot (slot 0)
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which size(s) of the VXI bus modules is/are the true VME bus module size(s)
A and B
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Using the MXI bus, a computer can be located directly next to the VXI mainframe or up to how many meters away?
20
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a computer or instrument with a MXI is called
MXI device
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the MXI bus has two cables, a point-to-point cable and a
multidrop
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a MXI bus system cansists of how many MXI bus devices connected in a daisy chain
two or more
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what type of damage to the test station may result with improper usage of certain ATLAS system procedures
Catastrophic
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what is always the first section of an ATLAS program
Preamble structure
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what are the two basic fields that make up every ATLAS statement
Fixed and variable
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what field of an ATLAS statement specifies in great detail exactly what is applied or how the timing of a signal is set up
variable
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what type of ATLAS statement does not require that use of the rest of the test station to properly execute
nontest
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which type of nontest ATLAS statement alters the normal sequence of program flow?
decision/branching
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which ATLAS test statement generate a signal that can have more states than just "on" or "off"
analog stimulus
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when calibrating ATE, you must consider
uncertainty
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in a PATEC calibration, which error is not associated with a systematic error?
Random
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What organization sets national calibration standards
NIST
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what calibration ratio is necessary to ensure sufficient traceability of standards
4:1
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in PATEC equipment, what type of standard is a Rubidium frequency standard
timing
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the CAPRE uses what type of computer
ruggedized laptop
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the CAPRE is powered by a(n)
AC adapter and lithium-Ion battery
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