The QMS ISO 9001:2015 Lead Auditor Exam (ISO-9001-Lead-Auditor)
Passing PECB ISO 9001 exam ensures for the successful candidate a powerful array of professional and personal benefits. The first and the foremost benefit comes with a global recognition that validates your knowledge and skills, making possible your entry into any organization of your choice.
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PECB ISO-9001-Lead-Auditor Exam Domains Q&A
Certified instructors verify every question for 100% accuracy, providing detailed, step-by-step explanations for each.
QUESTION DESCRIPTION:
You are conducting an audit at an organisation seeking certification to ISO 9001 for the first time. The organisation offers health and safety training to customers. Training courses are offered either as open courses, delivered at a public venue, or online, or as courses that are tailored to meet specific requirements. The business operates from a single office and those who deliver the training are either full-time employees or subcontractors.
You have gathered audit evidence as outlined below. Match the ISO 9001 Clause 8 extract to the audit evidence.

Correct Answer & Rationale:
Answer:

Explanation:
Here is the correct matching of the ISO 9001 Clause 8 extracts to the audit evidence:
Audit evidence: Three subcontract trainers who had delivered training were not approved as defined in procedure SA1 Supplier Approval revision 3.ISO 9001 Clause 8 extract: 8.4.1 ...shall apply criteria for ... external providers...(This clause requires the organization to control external providers, including ensuring their approval and competence.)
Audit evidence: A training programme for a customer was not documented as required in procedure TD 2 Training revision 2.ISO 9001 Clause 8 extract: 8.3.5 ...shall retain documented information on design and development outputs.(This clause addresses the need to retain documented information related to design and development outputs, such as a training programme.)
Audit evidence: One trainer had not recorded the damage to a customer’s training room wall caused by using sticky tape to hang training aids, as required in procedure TD 2 Training revision 2.ISO 9001 Clause 8 extract: 8.5.3 ...shall retain documented information on what has occurred.(This clause relates to retaining documented information on activities and outcomes, including records of damage or issues encountered.)
Audit evidence: Five sales orders had no record of having been reviewed to verify the ability to provide these courses.ISO 9001 Clause 8 extract: 8.2.3.1 ...shall conduct a review before committing...(This clause specifies the requirement to review and verify the organization ' s ability to meet customer requirements before accepting sales orders.)
These mappings reflect the specific requirements of ISO 9001:2015 for managing external providers, retaining documented information, and reviewing contracts.
QUESTION DESCRIPTION:
You are carrying out an audit at an organisation seeking certification to ISO 9001 for the first time. The organisation offers health and safety training to customers. Training courses are offered either as open courses, delivered at a public venue, or online, or as courses that are tailored to meet specific requirements. The business operates from a single office and those who deliver the training are either full-time employees or subcontractors.
You are interviewing the Training Manager (TM).
You: " What quality objectives apply to the training process? "
TM: " One of the quality objectives we aim for is a 90% minimum exam pass rate for all open training courses. "
You: " How do you measure this objective? "
The Training Manager shows you a record on her computer and you see the following:

Which two of the following statements are true?
Correct Answer & Rationale:
Answer: B, D
Explanation:
In this scenario, the organization has set a quality objective of achieving a 90% minimum exam pass rate for all courses. The auditor’s task is to assess whether this objective is being monitored effectively and if appropriate actions are taken when the objective is not met.
B. You would determine how the exam pass rate figures were analysed: ISO 9001:2015, particularly Clause 9.1 (Monitoring, measurement, analysis, and evaluation), requires organizations to evaluate performance data. The auditor should verify how the organization analyses the pass rate data to ensure trends are identified, and corrective actions are planned based on this analysis.
D. You would determine what corrective action was being taken to address the low pass rates: When performance falls short of the objective, as seen with Course 4 (where the pass rate is below 90% in all months), Clause 10.2 (Nonconformity and corrective action) requires organizations to take corrective actions to address issues. The auditor would need to check if corrective actions have been initiated to address consistently low pass rates.
Statements A, C, E, and F do not directly address the monitoring and corrective action required under ISO 9001:2015 in this context.
QUESTION DESCRIPTION:
Scenario 5: Mechanical-Electro (ME) Audit Stages
Mechanical-Electro, better known as ME, is an American company that provides mechanical and electrical services in China. Their services range from air-conditioning systems, ventilation systems, plumbing, to installation of electrical equipment in automobile plants, electronic manufacturing facilities, and food processing plants.
Due to the fierce competition from local Chinese companies and failing to meet customer requirements, ME ' s revenue dropped significantly. In addition, customers ' trust and confidence in the company decreased, and the reputation of the company was damaged.
In light of these developments, the top management of ME decided to implement a quality management system (QMS) based on ISO 9001. After having an effective QMS in place for over a year, they applied for a certification audit.
A team of four auditors was appointed for the audit, including Li Na as the audit team leader. Initially, the audit team conducted a general review of ME ' s documents, including the quality policy, operational procedures, inventory lists, QMS scope, process documentation, training records, and previous audit reports.
Li Na stated that this would allow the team to maintain a systematic and structured approach to gathering documents for all audit stages. While reviewing the documented information, the team observed some minor issues but did not identify any major nonconformities. Therefore, Li Na claimed that it was not necessary to prepare a report or conduct a meeting with ME ' s representatives at that stage of the audit. She stated that all areas of concern would be discussed in the next phase of the audit.
Following the on-site activities and the opening meeting with ME ' s top management, the audit team structured an audit test plan to verify whether ME’s QMS conformed to Clause 8.2.1 (Customer Communication) of ISO 9001.
To do so, they gathered information through group interviews and sampling. Li Na conducted interviews with departmental managers in the first group and then with top management. In addition, she chose a sampling method that sufficiently represented customer complaints from both areas of ME ' s operations.
The team members were responsible for the sampling procedure. They selected a sample size of 4 out of 45 customer complaints received weekly for electrical services and 2 out of 10 complaints for mechanical services.
Afterward, the audit team evaluated the evidence against the audit criteria and generated the audit findings.
Which stages of the audit were performed?
Correct Answer & Rationale:
Answer: B
Explanation:
Comprehensive and Detailed In-Depth Explanation:
Understanding Audit Stages Based on ISO/IEC 17021-1:2015
ISO certification audits consist of two main stages:
Stage 1 Audit (Readiness Review)
The organization’s documented information is reviewed to assess readiness for Stage 2.
This ensures that the QMS is developed, implemented, and prepared for full assessment.
Stage 2 Audit (On-Site Evaluation)
Auditors assess process implementation and effectiveness through interviews, observations, and evidence collection.
The audit team verifies if the organization meets ISO 9001 requirements in practice.
Why is the Correct Answer B?
The audit team reviewed ME’s documents, which is a Stage 1 activity.
The audit team performed interviews, sampling, and on-site verification, which is a Stage 2 activity.
There was no mention of an audit follow-up or a surveillance audit, which occur post-certification.
Why are the Other Options Incorrect?
A (Audit follow-up and Stage 1 Audit) → Follow-up audits occur after certification, which was not the case here.
C (Stage 2 Audit and Surveillance Audit) → Surveillance audits are post-certification audits and were not conducted yet.
QUESTION DESCRIPTION:
Which two of the following auditors would not participate in a first-party audit?
Correct Answer & Rationale:
Answer: A, F
Explanation:
A first-party audit is an internal audit conducted by auditors who are employed by the organization being audited but who have no vested interest in the audit results of the area being audited1. The purpose of a first-party audit is to assess the conformity of the organization’s quality management system to the requirements of ISO 9001 and to identify opportunities for improvement2. Therefore, the two auditors who would not participate in a first-party audit are:
•A. An auditor employed by an external consultancy organization: This auditor is not employed by the organization being audited, and therefore does not qualify as a first-party auditor. This auditor may be hired to conduct a second-party audit (if the external consultancy organization is a customer or supplier of the organization being audited) or a third-party audit (if the external consultancy organization is a certification body or registrar).
•F. An auditor from a customer: This auditor is not employed by the organization being audited, and therefore does not qualify as a first-party auditor. This auditor may be hired to conduct a second-party audit, as a customer is an interested party that has specific requirements for the organization being audited.
The other options are not correct, as they could participate in a first-party audit, as long as they are employed by the organization being audited and have no vested interest in the audit results of the area being audited:
•B. An auditor from an interested party: This auditor could be a first-party auditor, as long as the interested party is within the organization being audited. For example, an auditor from the finance department could audit the production department, as long as they are not involved in the production process or affected by its outcomes.
•C. An auditor trained in-house: This auditor could be a first-party auditor, as long as they are employed by the organization being audited and have no vested interest in the audit results of the area being audited. The source of the auditor’s training is not relevant for determining the type of audit, as long as the auditor is competent and qualified to perform the audit.
•D. An auditor trained in the IRCA scheme: This auditor could be a first-party auditor, as long as they are employed by the organization being audited and have no vested interest in the audit results of the area being audited. The IRCA scheme is a professional certification scheme for auditors of management systems, which provides recognition of the auditor’s competence and credibility3. However, being trained in the IRCA scheme does not determine the type of audit, as long as the auditor is competent and qualified to perform the audit.
•E. An auditor certified by IRCA: This auditor could be a first-party auditor, as long as they are employed by the organization being audited and have no vested interest in the audit results of the area being audited. Being certified by IRCA means that the auditor has met the requirements of the IRCA scheme and has demonstrated their competence and credibility as an auditor of management systems3. However, being certified by IRCA does not determine the type of audit, as long as the auditor is competent and qualified to perform the audit.
QUESTION DESCRIPTION:
Audit criteria are a set of requirements used as a reference against which objective evidence is compared.
Which two of the following are not potential audit criteria?
Correct Answer & Rationale:
Answer: F, H
Explanation:
According to ISO 19011:2018, clause 3.2, audit criteria are a set of policies, procedures or requirements used as a reference against which objective evidence is compared. Audit criteria are usually selected by the audit client or by agreement between the audit client and the auditee, and they should be appropriate for the audit scope and objectives1. Audit criteria may include, but are not limited to, the following sources2:
•ISO management system standards, such as ISO 9001, ISO 14001, ISO 45001, etc.
•Verbal statements by the general manager or other top management, as long as they are consistent with the documented policies and objectives of the organisation
•Verbal agreements with interested parties, such as customers, suppliers, regulators, etc., as long as they are documented and approved by the relevant authorities
•Health and safety notices, such as posters, signs, labels, etc., that communicate the organisation’s legal obligations, policies, or procedures
•Written agreements with interested parties, such as contracts, orders, specifications, etc., that define the requirements and expectations of the parties involved
•Organisation’s documented information, such as policies, procedures, manuals, records, etc., that describe the organisation’s management system and its processes
•Commitment to follow principles issued by an NGO, such as the United Nations Global Compact, the International Labour Organization, etc., as long as they are relevant to the organisation’s context and objectives
•Environmental aspects register, such as a list of the environmental impacts and risks associated with the organisation’s activities, products, and services
Therefore, the two options that are not potential audit criteria are F and H, as they are not reliable or verifiable sources of information, and they may not reflect the actual performance or conformity of the organisation’s management system. Commercial advertisements and claims made on the organisation’s website are forms of marketing communication that may be exaggerated, misleading, or inaccurate, and they are not subject to the same level of scrutiny or approval as the other sources of audit criteria.
QUESTION DESCRIPTION:
The Closing meeting of a second-party audit was planned for 6 pm with the general manager and the quality manager.
At 6 pm, when the audit team enters the meeting room, only the Quality Manager is present and walting for them.
The dialogue among them is as follows:
Auditor team leader: " Good evening, could you please inform the general manager that we are ready to start with the closing meeting? "
Quality manager: " Good evening. I am sorry to inform you that the general manager will not be able to attend the meeting. He will try to
participate virtually to make some closing remarks. "
Auditor team leader: " OK. We identified seven nonconformities - these are the reports. Could you please review them and sign them? "
Quality manager: " OK. As you know, I reviewed them after yesterday ' s meeting and accept of all them, where shall I sign? "
General manager (from speakers in the room and addressing the quality manager): " Hold on! Do not sign the two nonconformities related to ABC
Bank! I have just checked, and we did not provide any services to ABC Bank during September! You can sign the remaining five nonconformities. "
How would you proceed with the audit? Select one.
Correct Answer & Rationale:
Answer: C
QUESTION DESCRIPTION:
Which two of the following aspects of a quality management system must the organisation continually improve?
Correct Answer & Rationale:
Answer: C, E
Explanation:
According to the ISO 9001:2015 document, the organisation must continually improve the suitability, adequacy, and effectiveness of the quality management system1. However, among the six options given, only effectiveness is directly mentioned as an aspect of the quality management system that must be continually improved. Therefore, C is one of the correct answers.
Efficiency, on the other hand, is not explicitly stated as an aspect of the quality management system that must be continually improved, but it is implied by the quality management principle of improvement, which states that successful organisations have an ongoing focus on improvement2. One of the key benefits of applying this principle is improving operational effectiveness and efficiency2. Therefore, E is another correct answer.
Suitability, adaptability, responsiveness, and applicability are not aspects of the quality management system that must be continually improved, according to the ISO 9001:2015 document. They may be related to the quality management system, but they are not the focus of continual improvement.
Therefore, the correct answer is C and E.
QUESTION DESCRIPTION:
Noitol is an organisation specialising in the design and production of e-learning training materials for the insurance market. During an ISO 9001 audit of the development department, the auditor asks the Head of Development about the process used for validation of the final course design. She states that they usually ask customers to validate the product with volunteers. She says that the feedback received often leads to key improvements.
The auditor samples the design records for a recently completed course for the 247 Insurance organisation. Design verification was carried out but there was no validation report. The Head of Development advises that this customer required the product on an urgent basis, so the validation stage was omitted. When asked, the Head estimates that this occurs about 50% of the time. She confirms that they always ask for feedback and often make changes. There is no record of feedback in the design file for the course.
The auditor decides to review the training course design process in more depth.
Select three options that provide a meaningful audit trail for this process.
Correct Answer & Rationale:
Answer: B, E, F
Explanation:
According to clause 8.3 of ISO 9001:2015, the organization should establish, implement, and maintain a design and development process that is appropriate to ensure the subsequent provision of products and services. The design and development process should include the following activities:
•Determining the requirements for the products and services to be designed and developed, considering the intended use, the statutory and regulatory requirements, the customer and other relevant interested parties’ needs and expectations, and the potential risks and opportunities.
•Defining the design and development objectives, stages, responsibilities, and authorities, and ensuring the availability of adequate resources and competence.
•Implementing design and development controls, such as reviews, verification, and validation, to ensure that the design and development outputs meet the design and development inputs, and to identify and resolve any problems or errors.
•Maintaining documented information on the design and development inputs, outputs, reviews, verification, validation, and changes, and ensuring the traceability and conformity of the products and services to the requirements.
•Managing the design and development changes, by identifying, reviewing, and controlling them, and evaluating their effects on the products and services and the QMS.
In this case, the evidence statements that provide a meaningful audit trail for the design and development process are B, E, and F, because they relate to the design and development controls, the documented information, and the verification activities that are required by the standard. These options can help the auditor to assess the effectiveness and conformity of the design and development process, and to identify any nonconformities or opportunities for improvement. The other options are not directly related to clause 8.3, although they may be relevant for other aspects of the QMS, such as clause 7.2 on competence, clause 7.3 on awareness, clause 7.4 on communication, clause 8.2 on requirements for products and services, clause 8.4 on externally provided processes, products, and services, and clause 8.7 on control of nonconforming outputs. References: ISO 9001:2015, ISO 9001 Auditing Practices Group Guidance on Design and Development, ISO 9001 Clause 8.3 Design and development of products and services
QUESTION DESCRIPTION:
Takitup is a small fabrication organisation that manufactures steel fencing, stairs and platforms for the construction sector. It has been certified to ISO 9001 for some time and has appointed a new Quality Manager. The audit plan during a surveillance audit covers the organisation ' s improvement actions and the auditor asks to see the most recent management review meeting minutes.
The auditor finds that the management review report records that none of the improvement actions set by the previous review has been realised for a second time. A new Quality Manager has been brought in at the middle management level to rectify the situation as the organisation is concerned that it might lose its certification.
Select three options that would provide evidence of conformance with clause 10.3 of ISO 9001.
Correct Answer & Rationale:
Answer: D, E, G
QUESTION DESCRIPTION:
You are a member of the audit team of a second-party audit of an organisation with 625 employees. The audit procedure recommends using sampling criteria which requires the review of the documented competence for 25 personnel. The audit team leader developed an audit plan allocating one hour to audit the Human Resources department (from 11:30 am to 12:30 pm). She told you that she could not allocate any additional time.
What would you do?
Correct Answer & Rationale:
Answer: B
Explanation:
In this scenario, the time allocated by the audit team leader for the Human Resources audit is fixed, and as an auditor, you must work within that constraint. Although the sampling criteria suggests reviewing 25 personnel files, it is acceptable to adjust the sample size based on time and resource limitations. ISO 9001:2015 emphasizes risk-based thinking and practical resource management (Clause 7.1), so it is reasonable to review a smaller sample if the time is insufficient.
Option B is a pragmatic approach, allowing you to focus on quality over quantity by reviewing as many cases as time allows without compromising the audit schedule.
Options like extending the audit (A, C, D) are impractical in a structured audit environment, especially for second-party audits where maintaining the agreed schedule is important.
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