This set of Engineering Metrology Multiple Choice Questions & Answers (MCQs) focuses on “Tools and Techniques of TQM”.
1. Which statistical technique integrates product design and manufacturing process?
a) Tree analysis
b) Problem solving techniques
c) Quality function deployment
d) Taguchi approach
Explanation: Taguchi’s approach for quality combines statistical methods and engineering to achieve rapid movement in quality and cost by optimising the design of a product. It integrates manufacturing process and product design.
2. What is the key step in Taguchi’s approach?
a) Tolerance design
b) System design
c) Parameter design
d) Process design
Explanation: Taguchi’s approach is based on integrating system design (initial design stage), parameter design (Testing various material combinations) and tolerance design (buying material of better grade). Parameter design is the key step as it offers the concept of uncontrollable factor.
3. What is called the stratification of information?
a) Breaking down a whole group into smaller sub groups
b) Isolating the vital few from the trivial many
c) Grouping of scattered information
d) Sequencing of processes in a quality system
Explanation: Stratification of information is one of the statistical tools which means breaking down of the whole group into smaller sub-groups. Run charts, effect diagram, pareto diagram and scatter diagrams are also the statistical tools.
4. Which technique is used to relate complex cause and effect relationships?
a) Affinity diagram
b) Pareto diagram
c) Scatter diagram
d) Interrelationship diagram
Explanation: Interrelationship diagram is a quality improvement technique which shows the relationship between inter-related factors. This diagram displays the factors which are involved in complex problems.
5. What is PDPC?
a) A statistical tool
b) Quality improvement technique
c) Quality assurance technique
d) Statistical process control technique
Explanation: PDPC is process decision program chart which helps in the selection of the best process to obtain desired result. It is a quality improvement technique. It evaluates existing process and also look at alternatives.
6. What is the first step in problem solving process?
Explanation: Problems are best solved by the cycle: Plan-Do-Check-Action. In planning, a course of action is planned according to customer requirement and conditions of service then the process must be executed according to this plan.
7. How many control charts are normally used for statistical control of variables?
Explanation: Three control charts are normally used for statistical control of variables. These are i) Mean chart, ii) Range chart, and iii) standard deviation charts. Control charts help in the understanding of inherent capability of process and bring the process under control.
8. Which tool is used to analyse the effects of a failure of individual components on the system?
c) Quality circles
d) Fool proofing
Explanation: Failure mode and effect analysis (FMEA) is a statistical tool used to review the new product design with respect to the requirements of customers before it is sent to production. It is used basically to analyse the failure effect of individual components on the system as a whole.
9. What is the formula for process capability index?
Explanation: Process capability index is also known as measure of process capability and denoted by Cpk. Cpk = (1-K)*Cp. K is the correction factor and always has a positive value. Cp is the process capability potential also known as process capability variation and is equal to the (Specification width divided by process width).
10. What is arrow diagram in TQM?
a) A diagram used to plan the most appropriate schedule
b) Diagram shows the relationship strength between the variables
c) Used large amount of data and organise it on the basis of natural relationship between items
d) Diagram showing the sequencing and inter relationships between factors
Explanation: Arrow diagram is a statistical tool used to plan the most appropriate schedule for any task and to effectively control it during the progress of the process. Arrow diagram helps in establishing the most suitable plan for a project.
Sanfoundry Global Education & Learning Series – Engineering Metrology.
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