Basic Flashcards
7 cards from real Lean Six Sigma Black Belt Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Basic flashcards as text
Which of the following best describes the primary goal of the Control phase in DMAIC?
Answer: Sustain improvements and prevent regression
The Control phase focuses on sustaining gains by implementing monitoring systems and control plans to prevent the process from reverting to its old performance level.
A Black Belt calculates a process sigma level of 4.5. Approximately what DPMO does this correspond to?
Answer: 1,350
A 4.5 sigma process corresponds to approximately 1,350 DPMO when using the standard 1.5-sigma shift convention.
In a SIPOC diagram, what does the 'P' stand for?
Answer: Process
SIPOC stands for Suppliers, Inputs, Process, Outputs, and Customers — the 'P' represents the high-level Process steps.
Which type of data is counted in discrete units and cannot take fractional values?
Answer: Attribute data
Attribute (or discrete) data consists of counts or categories, such as the number of defects or pass/fail results, and cannot be meaningfully fractional.
The 'Voice of the Customer' (VOC) is translated into measurable product or process requirements using which tool?
Answer: Quality Function Deployment (QFD)
Quality Function Deployment (QFD), often represented by the House of Quality matrix, systematically translates VOC needs into specific technical requirements.
Which Lean principle focuses on producing only what is needed, when it is needed, and in the amount needed?
Answer: Just-In-Time (JIT)
Just-In-Time (JIT) production eliminates overproduction waste by synchronizing production output with actual demand.
A process has a mean of 50 and a standard deviation of 2. The specification limits are 44 and 56. What is the Cp?
Answer: 1.00
Cp = (USL − LSL) / (6σ) = (56 − 44) / (6 × 2) = 12 / 12 = 1.00.