Coding & Classification Systems Flashcards
7 cards from real CET practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Coding & Classification Systems flashcards as text
Which SMD resistor code represents a value of 47 kΩ?
Answer: 473
SMD resistor code 473 means 47 × 10³ = 47,000 Ω = 47 kΩ; the last digit is the power of ten.
In ASCII, the decimal value 65 corresponds to which character?
Answer: A
ASCII decimal 65 is the uppercase letter 'A'; lowercase 'a' is decimal 97.
What is the two's complement representation of −25 in an 8-bit system?
Answer: 11100111
25 in binary is 00011001; inverting all bits gives 11100110, and adding 1 yields 11100111, which is −25 in two's complement.
Which EIA standard governs the standard preferred number series (E12, E24, E96) for resistor values?
Answer: EIA-96
The EIA-96 standard defines the E96 series of preferred resistor values and is also commonly referenced for SMD coding using alphanumeric codes.
In the IEC 60062 capacitor color code, a brown band in the multiplier position represents a multiplier of:
Answer: 10
Brown in the multiplier band of the IEC capacitor color code represents ×10, consistent with its value in the resistor color code.
The octal number 37 converted to binary is:
Answer: 011111
Octal 3 = binary 011 and octal 7 = binary 111, so octal 37 = binary 011111.
In JEDEC semiconductor numbering, a device beginning with '1N' is classified as a:
Answer: Diode
JEDEC devices beginning with '1N' are diodes (one junction), while '2N' devices are transistors (two junctions).