Component Identification & Handling Flashcards
7 cards from real CIS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Component Identification & Handling flashcards as text
When baking moisture-sensitive components to restore floor life, what must be done after the baking process is complete?
Answer: Allow components to cool, then reseal in moisture barrier bags with fresh desiccant
After baking, components must cool to ambient temperature before resealing in moisture barrier bags with fresh desiccant; hot components can degrade the bag and desiccant.
What does the EIA-96 coding system use to mark precision SMD resistors?
Answer: A two-digit number plus a letter indicating the multiplier
EIA-96 uses a two-digit number (from a table of 96 values) plus a letter multiplier code, enabling more precise marking than standard three-digit codes for 1% resistors.
Which handling practice is required when working with beryllium copper (BeCu) component leads?
Answer: Wear gloves and avoid creating dust or particles — BeCu is a health hazard
Beryllium copper dust and particles are highly toxic; OSHA regulations require gloves, respiratory protection, and specific disposal procedures when machining or bending BeCu components.
What is the purpose of the humidity indicator card (HIC) found inside moisture barrier bags?
Answer: To visually indicate whether the relative humidity inside the bag has exceeded safe levels
Humidity indicator cards contain cobalt-based or non-cobalt indicator spots that change color (typically from blue to pink) when relative humidity exceeds specified threshold levels.
How are MELF (Metal Electrode Leadless Face) resistors distinguished from standard cylindrical capacitors during incoming inspection?
Answer: MELF resistors use numeric or color band markings; capacitors typically have capacitance/voltage markings
MELF resistors typically have EIA color bands or numeric value markings, while cylindrical capacitors display capacitance (in pF/µF) and voltage rating markings.
What action should be taken when a component's floor life timer has expired before it could be soldered?
Answer: Bake the component per J-STD-033 baking schedule before soldering
Per J-STD-033, components with expired floor life must be baked per the prescribed time/temperature schedule to drive out absorbed moisture before soldering.
When identifying diode polarity on a glass-body diode (like a 1N4148), what marking indicates the cathode?
Answer: A colored band (typically black or silver) at the cathode end
Glass-body diodes have a colored band (usually black or silver) printed near the cathode end to indicate current direction per standard component marking conventions.