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What is important to know about a diode? - Correct Answer -It has an anode (+)
and a cathode (-)
What is the symbol for a photodiode? - Correct Answer -The same as an LED, but
with the arrows pointing in
What is the difference between an NPN and PNP transistor? - Correct Answer -The
emitter arrow points in towards the base for a PNP
When can you swap pins? - Correct Answer -When your gates are within the same
logic family
When can you swap gates? - Correct Answer -When your gates are all within the
same logic family and IC
,What is done to the corners of the board tang on an edge connect board and
why? - Correct Answer -Chamfering, to prevent undue wear or damage of the
board
What can be used as stiffeners if the electrical clearances are tight? - Correct
Answer -Fiber or plastic insulators can be located between the stiffeners and the
conductors
What is the only component that you can place 2 leads in one PTH? - Correct
Answer -Bus bars
What are bus bars? - Correct Answer -They are preformed components and serve
the function of providing most of the power and ground distribution
What is a socket? - Correct Answer -A receptacle used if a part frequently needs
replacing
What must you consider when using a socket? - Correct Answer -The pin numbers
should be according to the device inserted into the socket
, What are good candidates for sockets? - Correct Answer -Components that have
low CTE, such as leadless ceramic chip carriers
What is an insulated stranded wire? - Correct Answer -Consists of multiple strands
of wire that is purchased with a plastic coating
What is true of jumpers longer than 1"? - Correct Answer -Adhesive must be
applied for every 1" of the wire to the board
What is the primary purpose of eyelets? - Correct Answer -Provide mechanical
supports to the printed board and prevent mechanical damage to the substrate
What can component orientation help with? - Correct Answer -Uniform
orientation (all pin 1's in top left corner) reduces machine cycle time and can help
drive down costs in production
What extreme cases do you need to consider for a hole and lead? - Correct
Answer -MMC- hole is at its smallest and lead is at its largest, LMC (opposite)