Inspection & Testing (ET105) study guide
Inspection & Testing (ET105) · Work through your exam, one topic at a time.
Inspection & Testing (ET105) is a multiple-choice examination covering the knowledge an inspection or testing technician needs to verify that materials, components, and fabricated work meet specified requirements. It suits quality inspectors, NDT trainees, welding and fabrication QA staff, laboratory technicians, and engineers who sign off on test results, as well as candidates building a formal credential in inspection practice. The Inspection & Testing (ET105) study guide has 9 sections and about 2,639 words.
01Inspection Fundamentals and Terminology
Inspection is the planned comparison of a characteristic against a stated requirement, and every inspection question can be broken into four parts: the characteristic, the requirement, the measurement method, and the decision rule. Master the vocabulary.
322 words, about 2 min02Codes, Standards, and Regulatory Requirements
This domain tests whether you know which document governs and how it applies. Distinguish a code (a body of rules adopted into law or contract, e.g., a boiler or pressure-vessel code) from a standard (a consensus technical document, e.g., an ASTM or ISO method) and a regulation (government-enforced).
309 words, about 2 min03Visual and Dimensional Inspection
Visual inspection is the most-used NDE method and the cheapest first line of defense. Candidates must know the conditions that make it valid: adequate illumination (commonly around 100 fc / ~1000 lux at the surface for general work, higher for fine detail), surface preparation (clean, accessible, correct finish), viewing distance and angle , and inspector vision (near-vision acuity and color discrimination, periodically rechecked).
312 words, about 2 min04Non-Destructive Examination Methods
Know each NDE method's physics, what it detects, and its limits. Visual (VT) - surface only.
289 words, about 1 min05Destructive and Mechanical Testing
Destructive testing sacrifices the specimen to quantify material or joint properties. Know the standard tests and what each measures.
260 words, about 1 min06Test Equipment, Calibration, and Measurement Uncertainty
This domain links equipment selection, calibration, and uncertainty. Calibration establishes the relationship between an instrument's reading and a reference standard; it does not, by itself, adjust the instrument.
300 words, about 2 min07Sampling, Test Procedures, and Data Recording
Sampling determines how much you inspect and how you decide. Distinguish 100% inspection from sampling .
280 words, about 1 min08Acceptance Criteria, Reporting, and Documentation
Acceptance criteria translate requirements into pass/fail decisions. They come from the contract, code, standard, or drawing, and must be objective and measurable .
270 words, about 1 min09Safety, Ethics, and Quality Assurance
Safety, ethics, and QA are intertwined: a quality result obtained unsafely or dishonestly is not a quality result. Safety : know hazards per method - radiation (RT: time, distance, shielding; dosimetry; controlled areas), high voltage and stored energy (UT/ET equipment), chemical exposure (PT/MT penetrants and developers; ventilation, PPE, SDS), and physical hazards (compressed gas, heavy specimens, noise).
297 words, about 1 min