IASSC Lean Six Sigma – Black Belt v6.1

Page:    1 / 22   
Exam contains 324 questions

Which of these items contribute to what is necessary for successful Kaizen events?

  • A. Analysis tools
  • B. Management support
  • C. Operator support
  • D. All of these answers are correct


Answer : D

Kanban establishes a means of monitoring production, conveyance and delivery information such that efficient flow is established. The method used by Kanban is to require a _________ before anything moves.

  • A. Sign-off
  • B. Signal
  • C. Bell to ring
  • D. Work order


Answer : B

When a Belt decides to use written procedures and visual controls to improve the consistency of the tasks that must occur in the process he is improving he has utilized the _________________ activity of 5S.

  • A. Sustaining
  • B. Sorting
  • C. Standardizing
  • D. Straightening


Answer : C

SPC Charts are used extensively in different business and decision-making environments. In this example a vendor is being selected based on speed of delivery.
Which of the conclusions would help you pick a vendor for your needs regarding lead-time of delivery from your vendors? (Note: There are 4 correct answers).

  • A. Vendor A with a much shorter lead time in delivery
  • B. Vendor B as it has a better consistency (lower variance) on lead time
  • C. Vendor B as Vendor A shows a situation out of control as shown in red
  • D. Vendor B as the Control Limits are much narrower than Vendor A
  • E. Vendor B with higher lead time, but a process with much narrower Control Limits


Answer : BCDE

Fractional Factorial designs are used to reduce the ____________ because the number of runs has been lowered.

  • A. Time and cost of experiments
  • B. Number of people involved
  • C. Number of data measurement points
  • D. Output summary


Answer : A

Fractional Factorial Designs are used to analyze factors to model the output as a function of inputs if Hypothesis Testing in the Analyze Phase was inadequate to sufficiently narrow the factors that significantly impact the output(s).

  • A. True
  • B. False


Answer : A

A Factorial Experiment based on a Level 2 Design with 6 factors would require 16 runs to fully assess the interactions.

  • A. True
  • B. False


Answer : B

A Full Factorial experiment using a 3 level 3 factor approach has been proposed to test the viability of an extrusion machine experiment. How many treatment combinations will this approach involve?

  • A. 6
  • B. 9
  • C. 27
  • D. 54


Answer : C

Screening experiments are the proper choice when a Belt is faced with the situation of highly Fractional Factorial Designs.

  • A. True
  • B. False


Answer : A

Which statement(s) are correct about the DOE Factorial plot output here? (Note: There are 3 correct answers).

  • A. Two factors were operated at 3 levels each
  • B. The highest tool age was achieved with metal hardness at high level while keeping the cutting speed at the low level
  • C. The design indicated above is a 32 factorial design
  • D. The cutting speed and cutting angle are at the low level for the least tool age achieved
  • E. All factors had 2 levels in the experiment


Answer : BCE

Which statement(s) are incorrect for the Regression Analysis shown here? (Note: There are 2 correct answers).

  • A. The air-fuel ratio explains most of the TurbineOutput variation
  • B. The Regression explains over 98% of the process variation
  • C. This Multiple Linear Regression has three statistically significant independent variables
  • D. If the air-fuel ratio increases by 1, the TurbineOutput more than triples
  • E. The SteamExitTemp explains the most variation of the TurbineOutput


Answer : DE

Which statement(s) are most correct for the Regression Analysis shown here?

  • A. The Regression explains 50.8% of the process variation
  • B. The air-fuel ratio explains most of the TurbineOutput variation
  • C. This Simple Linear Regression explains 98+% of the process variation
  • D. This Multiple Linear Regression has four statistically significant independent variables


Answer : B

A valid mathematical Regression represents all of the characteristics shown except ___________________________.

  • A. The residuals when plotted follow a Normal Distribution
  • B. The sum of the residuals is zero
  • C. All of the standardized residuals will be within ±3 Standard Deviations
  • D. Most standardized residuals are within ±2 Standard Deviations


Answer : C

When a Belt conducts a Linear Correlation Analysis and finds that as an X increases the Y also increase then he has proven a ______________ correlation.

  • A. Negative
  • B. Positive
  • C. Monomial
  • D. Single alignment


Answer : B

A valid Multiple Linear Regression (MLR) is characterized by all of these except _______________________.

  • A. It is an assumption that the X’s (inputs) are not correlated to each other
  • B. The X’s (inputs) are assumed to be independent of each other
  • C. MLR is conducted based on a deliberate form of experimentation
  • D. The Residuals from MLR analysis have to be Normally Distributed


Answer : C

Page:    1 / 22   
Exam contains 324 questions

Talk to us!


Have any questions or issues ? Please dont hesitate to contact us

Certlibrary.com is owned by MBS Tech Limited: Room 1905 Nam Wo Hong Building, 148 Wing Lok Street, Sheung Wan, Hong Kong. Company registration number: 2310926
Certlibrary doesn't offer Real Microsoft Exam Questions. Certlibrary Materials do not contain actual questions and answers from Cisco's Certification Exams.
CFA Institute does not endorse, promote or warrant the accuracy or quality of Certlibrary. CFA® and Chartered Financial Analyst® are registered trademarks owned by CFA Institute.
Terms & Conditions | Privacy Policy