CPT Quality Assurance & Process Optimization 3

Question 1

Which lean concept focuses on eliminating all activities that do not add value from the customer's perspective?

Accepted Answer

Waste elimination (Muda)

Answer

Muda refers to waste—any activity that consumes resources without creating value for the customer—and eliminating it is a core lean principle.

Question 2

A process with a Cpk of 0.85 indicates the process is:

Accepted Answer

Not capable of meeting specifications

Answer

A Cpk below 1.0 means the process is not capable of consistently producing output within specification limits.

Question 3

In statistical process control, the Upper Control Limit (UCL) is typically set at:

Accepted Answer

3 standard deviations above the mean

Answer

Control limits are conventionally placed at ±3 standard deviations from the process mean, representing 99.73% of normal variation.

Question 4

Which of the following best describes the purpose of a fishbone (Ishikawa) diagram?

Accepted Answer

Organize potential causes of a problem by category

Answer

A fishbone diagram visually organizes potential root causes of a problem into categories such as Man, Machine, Method, Material, and Environment.

Question 5

Total Productive Maintenance (TPM) aims primarily to:

Accepted Answer

Maximize equipment effectiveness through employee involvement

Answer

TPM engages all employees, especially operators, in maintaining equipment to maximize Overall Equipment Effectiveness (OEE).

(CPT) Certified Process Technician Practice Test