Industry Standards & Compliance Regulations Flashcards
7 cards from real CDT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Industry Standards & Compliance Regulations flashcards as text
In the National CAD Standard (NCS), what is the purpose of layer naming conventions?
Answer: To organize drawing elements consistently so files can be exchanged and understood across different firms
The NCS layer naming convention provides a uniform system for organizing CAD layers so that drawing files from different sources can be readily understood and used.
Which IPC standard is commonly referenced for the design and documentation of printed circuit board (PCB) drawings?
Answer: IPC-2221
IPC-2221 is the generic standard for printed board design, providing guidelines for PCB layout and the drawings used to document them.
What does 'MMC' mean in GD&T, and how does it affect a tolerance specification?
Answer: Maximum Material Condition — the state where the feature contains the most material, defining one limit of size
MMC (Maximum Material Condition) is the condition where a feature of size contains the maximum amount of material within its tolerance limits (e.g., largest shaft, smallest hole).
When preparing drawings for a government contract, which specification often governs the format and content requirements?
Answer: MIL-STD-100 (Engineering Drawing Practices)
MIL-STD-100 (now largely replaced by ASME Y14 series but still referenced) established DoD requirements for engineering drawing format, content, and preparation.
Which symbol in GD&T represents 'flatness' and what does it control?
Answer: A parallelogram symbol controlling how much a surface can deviate from a theoretically perfect plane
The flatness symbol (a parallelogram) defines a tolerance zone of two parallel planes within which all points on the controlled surface must lie, with no datum reference required.
What is the role of OSHA 29 CFR 1910.147 in the context of technical documentation for machinery?
Answer: It requires that lockout/tagout procedures be documented, which are often supported by technical drawings showing energy isolation points
29 CFR 1910.147 (Control of Hazardous Energy) requires documented lockout/tagout procedures, and technical drawings are used to identify and illustrate energy isolation points on equipment.
In piping and instrumentation diagram (P&ID) drafting, which standard defines the symbols and notation used?
Answer: ISA 5.1 (ANSI/ISA-5.1)
ANSI/ISA-5.1 is the standard that defines the instrumentation symbols and identification used in P&IDs for process control systems.