CQI Sampling Plans & Acceptance Sampling 2

Question 1

Consumer's risk (β) in acceptance sampling is the probability of:

Accepted Answer

Accepting a bad lot at the LTPD quality level

Answer

Rejecting a good lot at AQL quality

Answer

Finding the true defect rate in the population

Answer

Exceeding the prescribed sample size

Question 2

LTPD stands for:

Accepted Answer

Lot Tolerance Percent Defective

Answer

Lower Threshold Production Defect

Answer

Lot Total Process Deficiency

Answer

Limiting Tolerance Product Defect

Question 3

ANSI/ASQ Z1.9 provides acceptance sampling plans based on:

Accepted Answer

Variables data (actual measurements)

Answer

Attribute data (pass/fail inspection)

Answer

Sequential item-by-item inspection

Answer

Continuous production sampling

Question 4

Rectifying inspection is a procedure in which:

Accepted Answer

All defective items in rejected lots are screened and replaced with conforming items

Answer

Inspectors are recertified after every rejection

Answer

Only critical defects trigger a full lot inspection

Answer

Inspection responsibility is transferred to the supplier

Question 5

The Average Outgoing Quality Limit (AOQL) represents:

Accepted Answer

The maximum average outgoing quality over many lots with rectifying inspection

Answer

The minimum outgoing quality a process can achieve

Answer

The customer's maximum acceptable AQL value

Answer

The average defect rate measured across all suppliers

Question 6

Under ANSI/ASQ Z1.4, tightened inspection is initiated when:

Accepted Answer

Two out of five consecutive lots are rejected on original inspection under normal inspection

Answer

Any single lot is rejected during normal inspection

Answer

The supplier's AQL exceeds the contractual limit once

Answer

The consumer requests a supplier quality audit

Question 7

Under ANSI/ASQ Z1.4, reduced inspection may be considered when:

Accepted Answer

Ten consecutive lots have been accepted under normal inspection with a satisfactory production record

Answer

The last 5 lots have all been accepted under normal inspection

Answer

The supplier requests reduced sampling to cut costs

Answer

No defectives are found in three consecutive lots under tightened inspection