CPS Process Measurement & Metrics 2

Question 1

Takt time in process measurement is calculated as:

Accepted Answer

Available production time divided by customer demand rate

Answer

Total production time divided by total units produced

Answer

Cycle time minus wait time

Answer

Number of defects divided by total units inspected

Question 2

The process capability index Cp measures:

Accepted Answer

The ratio of the specification width to the natural process variation (6σ)

Answer

The percentage of products that meet customer requirements

Answer

The number of standard deviations between the mean and the nearest specification limit

Answer

The total cost of quality failures per production run

Question 3

First Pass Yield (FPY) is defined as the percentage of:

Accepted Answer

Units that complete a process correctly without any rework or repair on the first attempt

Answer

Units produced within the scheduled time window

Answer

Inspection points that pass without a defect being flagged

Answer

Processes that meet their SLA on the first execution attempt

Question 4

In Statistical Process Control (SPC), control limits are set at:

Accepted Answer

±3 standard deviations from the process mean

Answer

The upper and lower customer specification limits

Answer

±1 standard deviation from the process mean

Answer

The minimum and maximum values observed historically

Question 5

Mean Time Between Failures (MTBF) is a metric used to measure:

Accepted Answer

The average operating time between consecutive failures of a process or system

Answer

The average time it takes to repair equipment after a failure

Answer

The frequency of scheduled preventive maintenance intervals

Answer

The percentage of time equipment is available for production

Question 6

Cost of Poor Quality (COPQ) includes which of the following categories?

Accepted Answer

Prevention, appraisal, internal failure, and external failure costs

Answer

Prevention costs and appraisal costs only

Answer

Internal failure costs and external failure costs only

Answer

Scrap costs and warranty claim costs only

Question 7

Defect rate as a process metric is most accurately expressed as:

Accepted Answer

The ratio of defective units to total units produced, often expressed as a percentage

Answer

The number of defects found during final inspection

Answer

The cost per defect divided by total production cost

Answer

The number of customer complaints received per month