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ASQ Certified Quality Inspector Free Sample Questions

Description

Covers technical shop math, algebra and geometry, common and special gauges and measurement instruments, blueprint reading and inspection planning, sampling, and quality improvement and audits.

8 free sample questions90 in the full practice test

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CQI Sample Questions

  1. Question 1

    Beginner

    Technical Mathematics · Basic Shop Math

    During a first-article inspection, a critical dimension is found to have shifted from its original prototype value of 2.500 inches to 2.445 inches. What is the percent change of this dimension from the prototype stage?

    Answer and explanation

    Correct answer: A

    The percent change formula is: ((New Value - Original Value) / Original Value) * 100. Plugging in the numbers: ((2.445 - 2.500) / 2.500) * 100 = (-0.055 / 2.500) * 100 = -0.022 * 100 = -2.20%.

  2. Question 2

    Intermediate

    Technical Mathematics · Basic Geometry

    A quality inspector must verify the volume of a cylindrical fluid reservoir to ensure it meets the minimum capacity requirement of 120.0 cubic centimeters. The reservoir has an internal diameter of 4.0 cm and an internal height of 10.0 cm. What is the calculated volume of the reservoir?

    Answer and explanation

    Correct answer: A

    The formula for the volume of a cylinder is V = π × r² × h. Since the diameter is 4.0 cm, the radius (r) is 2.0 cm. V = 3.14159 × (2.0)² × 10.0 = 3.14159 × 4.0 × 10.0 = 125.66 cubic centimeters.

  3. Question 3

    Advanced

    Technical Mathematics · Basic Trigonometry

    An inspector needs to set up a 5-inch sine bar to inspect an angled surface specified at 12 degrees. What is the correct total height of the gauge block stack required to achieve this angle?

    Answer and explanation

    Correct answer: B

    The height of the gauge block stack for a sine bar is calculated using the formula: Height = Sine(Angle) × Length of Sine Bar. For a 12-degree angle and a 5-inch sine bar: sin(12°) ≈ 0.2079. Height = 0.2079 × 5 = 1.0395 inches (rounds to 1.039 depending on table precision, but exactly 1.0395).

    flowchart LR A[Determine Angle: 12°] --> B[Calculate Sine: 0.2079] B --> C[Multiply by Bar Length: 5"] C --> D[Stack Height: 1.0395"]

  4. Question 4

    IntermediateMultiple answers

    Technical Mathematics · Measurement Systems

    When converting technical drawing specifications between the English system and the SI metric system, which TWO of the following conversion factors are mathematically correct? (Select TWO)

    Answer and explanation

    Correct answers: A, B

    1 inch is exactly equal to 25.4 millimeters. 1 millimeter is approximately equal to 0.03937 inches. The other options contain common conversion factor errors.

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