CAD Specialist Electrical and Electronics Design Flashcards
7 cards from real CAD practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 CAD Specialist Electrical and Electronics Design flashcards as text
What does a 'net' represent in an electrical schematic?
Answer: An electrical connection shared between two or more component pins
A net represents an electrical node — a named connection shared by all pins that are electrically joined in the schematic.
Which US standard defines graphic symbols used for electrical and electronics schematic diagrams?
Answer: ANSI/IEEE 315
ANSI/IEEE 315 defines the graphic symbols for electrical and electronics diagrams used in US industrial and defense practice.
What is a 'block attribute' used for in AutoCAD electrical symbol blocks?
Answer: Storing variable text such as part numbers or component values within a reusable block
Block attributes store variable text data — such as reference designators, part numbers, or voltage ratings — within a block so each instance can carry unique information.
What is a 'ladder diagram' primarily used to document in electrical CAD?
Answer: PLC logic for industrial control systems
Ladder diagrams document PLC (Programmable Logic Controller) logic, with horizontal rungs showing control elements like contacts, coils, and timers.
What does a 'reference designator' (RefDes) identify in an electrical schematic?
Answer: Each unique component instance on a schematic (e.g., R1, C3, U5)
A reference designator is a unique alphanumeric label (e.g., R1, C3) that identifies each individual component instance on a schematic.
What does 'cross-referencing' accomplish in a multi-sheet electrical schematic set?
Answer: Connects wire nets that continue on different sheets by matching labels or connectors
Cross-referencing links wire nets or signals that leave one schematic sheet and continue on another by using matching off-page connector symbols or net labels.
In an electrical panel layout drawing, what does a 'terminal strip' represent?
Answer: A row of individual terminals used to join wires from different circuits
A terminal strip is a modular block of individual screw or spring terminals that provides organized connection points for wires entering or leaving an electrical panel.