Engineering Metrology Questions and Answers Part-15

1. Which of the following option is correct regarding QA and QC?
a) QC is an integral part of QA
b) QA is an integral part of QC
c) QA and QC are independent to each other
d) QC may or may not depend on QA

Answer: a
Explanation: QC is based on the measurements as it concerned with practical means. Metrology is an important tool of quality assurance.

2. Which of the following option involves material and component control?
a) Development of standards
b) Development of specification
c) Quality control
d) Feedback

Answer: c
Explanation: Quality and measurement control involves component control. Specification and design involve the development of specifications, designs and standards. Marketing and servicing involves feedback.

3. Arrange the steps of QA in ascending order?
a) Customer needs, material control, design development, process control, marketing
b) Material control, process control, customer need, design development, finished product
c) Customer needs, design development, material control, process control, finished product
d) Material control, servicing, process control, material control, design development

Answer: c
Explanation: Scheme of QA starts with customer need. They have to be converted into the development of a specification, followed by quality and measurement control, material control and convert into the finished product.

4. What is the first step of QA?
a) Development of standards
b) Identification of customer need
c) Servicing
d) Material control

Answer: b
Explanation: Identification of customer need is the first step of QA after which further basic elements of QA are identified. QA depends not only on QC but also on the activities of the entire company.

5. Which of the following is an example of QA?
a) Verification
b) Software testing
c) Validation
d) Documentation

Answer: a
Explanation: Software testing and validation are the examples of QC. Validation is an example of QA. QC is a system for coordinating the efforts of groups in an organization to improve quality.

6. Which of the following option is not correct regarding QA and QC?
a) Process capabilities should be monitored on intermittent basis
b) Measuring equipment’s must have a calibration certificate
c) Normally many inspections are done during the process of manufacturing
d) QA depends on the activities of the entire company

Answer: a
Explanation: Process capabilities are controlled on a continuous basis. These are used to eliminate and detect potential causes of non-conformance.

7. Where the nodal point for National Measurement System is located?
a) Bangalore
b) Patna
c) Bombay
d) New Delhi

Answer: d
Explanation: Nodal point for national measurement system is NPL and located in New Delhi. It has responsibilities like the development and management of national standards, evaluation of measuring techniques etc.

8. What are the functional dimensions?
a) Have to be machined and fit with other mating components
b) Which have no effect on the performance of quality
c) Need not to be machined to an accuracy of the high degree
d) Function is more important than accuracy

Answer: a
Explanation: Non-functional dimensions have no effect on the performance of quality of the assembly or component. Non-functional dimensions need not to be machined to higher accuracy.

9. Why tolerances are given to the parts?
a) Because it’s impossible to make perfect settings
b) To reduce weight of the component
c) To reduce cost of the assembly
d) To reduce amount of material used

Answer: a
Explanation: Tolerances are provided to the parts because variations in the material properties introduce errors and production machines themselves have inherent inaccuracies. Another reason to introduce tolerance is that it is not possible to make perfect settings by operator so some tolerances are provided.

10. What is bilateral tolerance?
a) Total tolerance is in 1 direction only
b) Total tolerance is in both the directions
c) May or may not be in one direction
d) Tolerance provided all over the component body

Answer: b
Explanation: Total tolerance is specified on both the sides of the basic dimension. This usually have + and – tolerance of equal amount.