CQI study plan

Compute confidently with fractions, decimals, percentages, and signed numbers without a calculator for simple cases

Convert between metric and imperial units for length, mass, volume, pressure, and temperature, showing unit-cancellation work

Solve ratio, proportion, and percentage-change problems drawn from inspection and process data

Set up and solve single-variable equations for unknown dimensions in a drawing-based scenario

Apply plane-geometry formulas (perimeter, area, volume, angles) to part features and inspection setups

Use right-triangle trigonometry to compute unknown lengths and angles in a measurement layout

Calculate mean, range, and standard deviation from a small data set by hand and check against a spreadsheet

Explain the difference between accuracy, precision, repeatability, and resolution using numeric examples

Select the correct hand tool (caliper, micrometer, height gauge, indicator) for a stated tolerance and feature type

Demonstrate correct reading and recording of vernier and micrometer scales to the stated resolution

Describe the calibration chain: traceability, calibration intervals, as-found/as-left data, and out-of-tolerance disposition

Design and interpret a simple gauge repeatability and reproducibility study using range and average data

Identify sources of measurement error (Abbe error, thermal, parallax, operator) and state a mitigation for each

Interpret geometric tolerancing feature control frames: form, orientation, location, and profile symbols with their datums

Compute allowance, bilateral and unilateral tolerances, and maximum/minimum material conditions for mating parts

Perform worst-case and simple statistical tolerance stack-ups on a two-part assembly

Determine whether a measured value conforms to a spec, including measurement-uncertainty guard bands

Distinguish receiving, in-process, and final inspection and justify which applies to a given production stage

Read an AQL table and derive sample size, acceptance number, and reject number for a stated lot and inspection level

Explain how an operating-characteristic curve reflects producer and consumer risk

Compare attribute and variable sampling and match each to an appropriate inspection situation

Classify common non-destructive test methods by what defect type each detects best

Sequence the steps for controlling nonconforming material: identification, segregation, documentation, disposition

Outline how coordinate measuring machines and vision systems collect and report inspection data, including probe and alignment basics

Write acceptance criteria and data-recording fields for a specified characteristic

Select between destructive and non-destructive verification for stated product requirements

Trace a measurement result from raw reading to recorded inspection record and spot missing traceability fields

Apply the seven basic quality tools to a described defect scenario and select the most informative one

Map a process using PDCA and identify where inspection checkpoints belong

Draft a corrective-action statement with root cause, containment, and verification of effectiveness

Compute and interpret cost-of-quality categories (prevention, appraisal, internal failure, external failure)

Distinguish the purpose and scope of internal audits, supplier audits, and third-party audits

Complete a full-length timed practice exam under test-day conditions

Categorize every incorrect answer by domain and by error type (knowledge gap, misread, calculation, guessing)

Re-solve your ten weakest items unaided and explain each in writing

Re-drill formula recall for math and metrology using spaced self-quizzing

Build a final one-page pre-exam reference sheet limited to what you repeatedly missed