NPTEL :: Textile Engineering - Quality Control in Textile Industry

Modules / Lectures

Introduction to Quality and Quality Control
Statistical Description of Quality
Statistical Inferences on Quality
Shewhart Control Charts
Process Capability Analysis
Non-Shewhart Control Charts
Acceptance Sampling Techniques
Six Sigma and Its Application to Textiles

M7Q1: How the practical OC curve can be made closer to the ideal OC curve?
M7Q2: How the discriminatory power of the acceptance sampling plan can be increased?
M7Q3: What are the specific points of OC curve that a quality engineer looks for?

M7Q1: How the practical OC curve can be made closer to the ideal OC curve?

ANS: By increasing the sample size, the practical OC curve can be made closer to the ideal OC curve.

M7Q2: How the discriminatory power of the acceptance sampling plan can be increased?

ANS: The discriminatory power of the acceptance sampling plan can be increased by increasing the sample size. Also, plans with smaller value of c provide discrimination at lower levels of lot fraction defective than do plans with larger values of c.

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M7Q3: What are the specific points of OC curve that a quality engineer looks for?

ANS: A quality engineer always looks for the AQL and the LTPD in an OC curve.

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