MQM 227 - Chapter 9 Exam Questions and Answers 100% Correct
1. A complete system of quality control:
A. Is defined by critical control points, inspectors, measurements,
costs, and other considerations
B. Involves a zero defects philosophy
C. Requires a continuous scale for measurement of defects
D. Must include both variable and attribute measurements - ✔✔A. Is
defined by critical control points, inspectors, measurements, costs,
and other considerations
2. Sampling inspection by attributes:
A. Means each item sampled is classified as defective or not defective
based on quality standards
B. Could be used together with process control and variable
measurement as part of a quality control system
C. Utilizes a discrete scale of measurement
D. a, b, and c - ✔✔D. a, b, and c
3. Which of the following statements about process quality control is
NOT true?
A. Assignable cause variation is also referred as special cause variation
B. An observation outside the control limits is an example of a special
cause of variation
, C. Common cause variation can be eliminated from the process by
removing the potential causes
D. The control limits will include 99.74% of the population under the
normal probability distribution assuming that the process is in control
- ✔✔C. Common cause variation can be eliminated from the process
by removing the potential causes
4. A process control chart:
A. Assumes that 99.74% of special cause variation will fall between
upper and lower limits
B. Has upper and lower control limits set at ± 2 standard deviations
from the center line
C. Separates the assignable cause of variation from the common cause
of variation
D. Assigns causes of variation to operator, machine, or material -
✔✔C. Separates the assignable cause of variation from the common
cause of variation
5. A Pareto chart:
A. Shows causes and effects of quality problems
B. Shows the prevalence of the various types of defects that have
been found
C. Is not useful when first studying a quality problem
D. Has both upper and lower specification limits - ✔✔B. Shows the
prevalence of the various types of defects that have been found
1. A complete system of quality control:
A. Is defined by critical control points, inspectors, measurements,
costs, and other considerations
B. Involves a zero defects philosophy
C. Requires a continuous scale for measurement of defects
D. Must include both variable and attribute measurements - ✔✔A. Is
defined by critical control points, inspectors, measurements, costs,
and other considerations
2. Sampling inspection by attributes:
A. Means each item sampled is classified as defective or not defective
based on quality standards
B. Could be used together with process control and variable
measurement as part of a quality control system
C. Utilizes a discrete scale of measurement
D. a, b, and c - ✔✔D. a, b, and c
3. Which of the following statements about process quality control is
NOT true?
A. Assignable cause variation is also referred as special cause variation
B. An observation outside the control limits is an example of a special
cause of variation
, C. Common cause variation can be eliminated from the process by
removing the potential causes
D. The control limits will include 99.74% of the population under the
normal probability distribution assuming that the process is in control
- ✔✔C. Common cause variation can be eliminated from the process
by removing the potential causes
4. A process control chart:
A. Assumes that 99.74% of special cause variation will fall between
upper and lower limits
B. Has upper and lower control limits set at ± 2 standard deviations
from the center line
C. Separates the assignable cause of variation from the common cause
of variation
D. Assigns causes of variation to operator, machine, or material -
✔✔C. Separates the assignable cause of variation from the common
cause of variation
5. A Pareto chart:
A. Shows causes and effects of quality problems
B. Shows the prevalence of the various types of defects that have
been found
C. Is not useful when first studying a quality problem
D. Has both upper and lower specification limits - ✔✔B. Shows the
prevalence of the various types of defects that have been found
