CH 21: Inspection Principles and Practices

What does SPC stand for in the context of quality control?

• Statistical Process Control

• Standard Process Control

• Systematic Process Control

• Simplified Process Control

Which of the following is NOT a part of the new QC approaches?

• Manual inspection

• On-line sensor systems

• Feedback control

• Advanced inspection technologies

Which inspection type involves measuring one or more quality characteristics?

• Inspection for attributes

• Inspection for variables

• Visual inspection

• Automated inspection

Which features are considered more important during inspection?

• Certain features

• All features

• Visible features

• Hidden features

What is important to inspect on bearing surfaces?

• Surface roughness

• Color

• Weight

• Material

Why is inspecting every feature unnecessary?

• Certain features are more important

• It is too expensive

• It takes too much time

• It requires special tools

What aspect of high-speed rotating shafts is crucial?

• Concentricity

• Color

• Weight

• Material

What does $ p_2 $ represent in measures of inspection accuracy?

• Probability that a nonconforming item is classified as nonconforming

• Probability that a conforming item is classified as conforming

• Probability that a conforming item is classified as nonconforming

• Probability that a nonconforming item is classified as conforming

Which type of sampling involves counting defects in a sample?

• Variables sampling

• Attributes sampling

• Random sampling

• Systematic sampling

What is the primary advantage of using sampling in quality inspection?

• It guarantees zero defects

• It reduces inspection time and cost

• It increases production speed

• It ensures every product is checked