COB 300 OPERATIONS ACTUAL
QUESTIONS AND CORRECT ANSWERS
COMPLETE BUSINESS OPERATIONS STUDY
GUIDE
●● Inspection
Answer: An appraisal activity that compares goods or services to a
standard
●● Inspection Issues
Answer: 1. How much to inspect and how often
2. At what points in the process to inspect
3. Whether to inspect in a centralized or on-site location
4. Whether to inspect attributes or variables
●● Where to inspect in the process
Answer: 1. Raw materials and purchased parts
2. Finished products
3. Before a costly operation
4. Before an irreversible process
5. Before a covering process
,●● Centralized vs On-Site Inspection
Answer: Effects on cost and level of disruption are major considerations
●● Centralized
Answer: -Specialized tests that may best be completed in a lab
-More specialized testing equipment
-More favorable testing environment
●● On-Site Inspection
Answer: -Quicker decisions are rendered
-Avoided introduction of extraneous factors
-Quality at the source
●● two basic questions concerning variability
Answer: -Issue of Process Control
-Issue of Process Capability
●● Issue of process control
Answer: Are the variations random? If nonrandom variation is present,
the process is said to be unstable.
●● Issue of Process Capability
,Answer: Given a stable process, is the inherent variability of the process
within a range that conforms to performance criteria?
●● Steps required for effective control
Answer: -Define: What is to be controlled?
-Measure: How will measurement be accomplished?
-Compare: There must be a standard of comparison
-Evaluate: Establish a definition of out of control
-Correct: Uncover the cause of nonrandom variability and fix it
-Monitor: Verify that the problem has been eliminated
●● Statistics to manage quality
Answer: -Requires less labor (reduces costs)
-Useful when testing destroys products
●● Categories of statistical tools
Answer: -Statistical process control
-Acceptance sampling
●● Statistical process control
Answer: Assesses whether or not an ongoing process is preforming
within established limits
, ●● Acceptance Sampling
Answer: Assesses the quality of parts or products after they have been
produced
●● Statistical Process Control (SPC)
Answer: A quantitative method for determining whether a particular
process is in or out of control
●● Process Variations
Answer: -Random (common cause) variations
-Assignable (special cause) variations
●● Random (common cause) variation
Answer: Natural variation in the output of a process, created by
countless minor factors
●● Assignable (special cause) variation
Answer: -Variations whose source can be identified
-Easy to control/correct
●● Why are samples taken?
Answer: To determine whether assignable variations are present in the
output of a process
QUESTIONS AND CORRECT ANSWERS
COMPLETE BUSINESS OPERATIONS STUDY
GUIDE
●● Inspection
Answer: An appraisal activity that compares goods or services to a
standard
●● Inspection Issues
Answer: 1. How much to inspect and how often
2. At what points in the process to inspect
3. Whether to inspect in a centralized or on-site location
4. Whether to inspect attributes or variables
●● Where to inspect in the process
Answer: 1. Raw materials and purchased parts
2. Finished products
3. Before a costly operation
4. Before an irreversible process
5. Before a covering process
,●● Centralized vs On-Site Inspection
Answer: Effects on cost and level of disruption are major considerations
●● Centralized
Answer: -Specialized tests that may best be completed in a lab
-More specialized testing equipment
-More favorable testing environment
●● On-Site Inspection
Answer: -Quicker decisions are rendered
-Avoided introduction of extraneous factors
-Quality at the source
●● two basic questions concerning variability
Answer: -Issue of Process Control
-Issue of Process Capability
●● Issue of process control
Answer: Are the variations random? If nonrandom variation is present,
the process is said to be unstable.
●● Issue of Process Capability
,Answer: Given a stable process, is the inherent variability of the process
within a range that conforms to performance criteria?
●● Steps required for effective control
Answer: -Define: What is to be controlled?
-Measure: How will measurement be accomplished?
-Compare: There must be a standard of comparison
-Evaluate: Establish a definition of out of control
-Correct: Uncover the cause of nonrandom variability and fix it
-Monitor: Verify that the problem has been eliminated
●● Statistics to manage quality
Answer: -Requires less labor (reduces costs)
-Useful when testing destroys products
●● Categories of statistical tools
Answer: -Statistical process control
-Acceptance sampling
●● Statistical process control
Answer: Assesses whether or not an ongoing process is preforming
within established limits
, ●● Acceptance Sampling
Answer: Assesses the quality of parts or products after they have been
produced
●● Statistical Process Control (SPC)
Answer: A quantitative method for determining whether a particular
process is in or out of control
●● Process Variations
Answer: -Random (common cause) variations
-Assignable (special cause) variations
●● Random (common cause) variation
Answer: Natural variation in the output of a process, created by
countless minor factors
●● Assignable (special cause) variation
Answer: -Variations whose source can be identified
-Easy to control/correct
●● Why are samples taken?
Answer: To determine whether assignable variations are present in the
output of a process
