Equipment Qualification – OQ MCQs With Answer

Introduction: Equipment Qualification – OQ MCQs With Answer is a focused quiz set designed for M.Pharm students studying Scale Up & Technology Transfer (MIP 202T). Operational Qualification (OQ) verifies that equipment operates within predetermined limits under simulated and actual operating conditions. These MCQs cover core concepts such as OQ objectives, test protocols, acceptance criteria, control systems, utilities, software interactions, documentation, and risk-based considerations. The questions are crafted to deepen understanding of practical OQ execution, common pitfalls, and regulatory expectations. This resource helps students prepare for exams and real-world technology transfer tasks by emphasizing critical thinking and application-level knowledge rather than rote memorization.

Q1. What is the primary objective of Operational Qualification (OQ) for pharmaceutical equipment?

• To demonstrate correct installation of equipment and utilities
• To verify consistent performance under simulated and actual operating conditions
• To validate the clinical efficacy of a drug produced by the equipment
• To establish maintenance schedules and spare parts inventory

Correct Answer: To verify consistent performance under simulated and actual operating conditions

Q2. Which document typically contains the detailed tests, acceptance criteria, and procedures used during OQ?

• Installation Qualification (IQ) Report
• Operational Qualification (OQ) Protocol
• Performance Qualification (PQ) Summary
• Validation Master Plan (VMP)

Correct Answer: Operational Qualification (OQ) Protocol

Q3. During OQ, which of the following is the most appropriate way to establish acceptance criteria?

• Use vendor promotional materials as the sole basis
• Adopt arbitrary limits to pass tests quickly
• Define criteria based on user requirements, process needs, and risk assessment
• Copy criteria from a different facility without review

Correct Answer: Define criteria based on user requirements, process needs, and risk assessment

Q4. Which of the following activities is usually performed during OQ rather than IQ?

• Verification of utility connections and nameplate data
• Functional testing of interlocks, alarms and control logic
• Receipt inspection of equipment components
• Installation of fixed piping and electrical wiring

Correct Answer: Functional testing of interlocks, alarms and control logic

Q5. What role does a traceability matrix play in the OQ process?

• It replaces the need for calibration records
• It maps user requirements to OQ tests and results to ensure coverage
• It lists spare parts and suppliers for the equipment
• It documents daily production yields during PQ

Correct Answer: It maps user requirements to OQ tests and results to ensure coverage

Q6. For automated equipment with embedded software, which additional OQ activity is critical?

• Designing the equipment housing color scheme
• Executing software functional tests and verifying alarm responses
• Performing solder joint inspections on PCB components
• Providing operator training only after PQ

Correct Answer: Executing software functional tests and verifying alarm responses

Q7. Which of the following best describes the difference between OQ and PQ?

• OQ is done after PQ and focuses on production scale; PQ is purely mechanical checks
• OQ verifies equipment operation under defined conditions; PQ verifies performance during actual production using real materials
• OQ is for software only; PQ is for hardware only
• There is no difference; the terms are interchangeable

Correct Answer: OQ verifies equipment operation under defined conditions; PQ verifies performance during actual production using real materials

Q8. Which calibration status is required for instruments used during OQ?

• Calibration within its valid interval and traceable to national/international standards
• Calibration is optional if the instrument looks accurate
• No calibration required if vendor provides a certificate
• Calibration should be deferred until PQ

Correct Answer: Calibration within its valid interval and traceable to national/international standards

Q9. When should requalification of equipment typically be performed?

• Only when the equipment is first installed
• After significant changes, periodic intervals, or following a failure or maintenance that impacts performance
• Never, if OQ passed once
• Only when a new operator is trained on the equipment

Correct Answer: After significant changes, periodic intervals, or following a failure or maintenance that impacts performance

Q10. Which of the following is a typical OQ test for a lyophilizer or freeze dryer?

• Verification of the unit’s paint gloss level
• Thermal mapping and shelf temperature uniformity testing under load
• Validation of outgoing product shipping labels
• Operator handwriting legibility check

Correct Answer: Thermal mapping and shelf temperature uniformity testing under load

Q11. In a risk-based OQ approach, what is the main factor determining test depth and frequency?

• The cost of the equipment only
• The criticality of the equipment function to product quality and patient safety
• The age of the facility building
• How often the manufacturer visits the site

Correct Answer: The criticality of the equipment function to product quality and patient safety

Q12. Which record is essential to demonstrate that OQ tests were executed as planned and results reviewed?

• OQ Test Execution Log with signatures, raw data and a disposition for each test
• Only an email summary from the vendor
• An informal checklist kept by the operator without signatures
• A marketing brochure describing equipment features

Correct Answer: OQ Test Execution Log with signatures, raw data and a disposition for each test

Q13. For clean utilities (e.g., purified water) connected to equipment under OQ, which activity is most relevant?

• Testing water color visually at noon only
• Verifying connection integrity, flow rates, pressures, and water quality parameters under operational conditions
• Confirming the vendor’s water system brochure exists in the library
• Measuring water taste by lab personnel

Correct Answer: Verifying connection integrity, flow rates, pressures, and water quality parameters under operational conditions

Q14. Which statement best reflects the role of change control related to OQ?

• All changes can be implemented immediately without review
• Changes impacting equipment performance require assessment and potential requalification under change control
• Change control is only required for formulation changes
• Change control applies only to document formatting

Correct Answer: Changes impacting equipment performance require assessment and potential requalification under change control

Q15. What is a Site Acceptance Test (SAT) and how does it relate to OQ?

• SAT is a marketing event and unrelated to OQ
• SAT is performed by operators to check packaging aesthetics before OQ
• SAT verifies equipment delivery and basic operation at site; OQ follows to test detailed operational performance
• SAT replaces the need for OQ entirely

Correct Answer: SAT verifies equipment delivery and basic operation at site; OQ follows to test detailed operational performance

Q16. Which of the following is an appropriate way to handle out-of-specification (OOS) results encountered during OQ?

• Ignore OOS results if most other tests passed
• Document the OOS, investigate root cause, determine corrective actions, and reassess acceptance criteria if justified
• Change the recorded value to fit acceptance criteria without documentation
• Delay investigation until after PQ is complete

Correct Answer: Document the OOS, investigate root cause, determine corrective actions, and reassess acceptance criteria if justified

Q17. Which personnel should typically be involved in OQ execution and review?

• Only the equipment vendor representative
• Cross-functional team including engineering, QA, production, and validation specialists
• Only the plant manager
• External auditors only, without internal staff

Correct Answer: Cross-functional team including engineering, QA, production, and validation specialists

Q18. In OQ for a tablet compression machine, which parameter is most commonly evaluated?

• Ambient office lighting preferences
• Compression force, speed variations, tablet weight uniformity and ejection consistency under set operating conditions
• Color of operator gloves
• Number of keys on the machine control panel

Correct Answer: Compression force, speed variations, tablet weight uniformity and ejection consistency under set operating conditions

Q19. Which statement about acceptance criteria traceability in OQ reports is correct?

• Acceptance criteria may be listed without linking to any requirement
• Each acceptance criterion should be traceable to a user requirement, risk assessment, or regulatory expectation
• Acceptance criteria should always be the most lenient possible
• Traceability matrices are unnecessary paperwork and should be omitted

Correct Answer: Each acceptance criterion should be traceable to a user requirement, risk assessment, or regulatory expectation

Q20. How should environmental conditions (temperature, humidity, pressure) be handled during OQ?

• Document and control environmental conditions relevant to equipment operation and test their impact where product or equipment performance is sensitive
• Assume environment has no effect and do not monitor
• Adjust acceptance criteria to match any environmental fluctuation
• Only note environmental conditions once at installation and never again

Correct Answer: Document and control environmental conditions relevant to equipment operation and test their impact where product or equipment performance is sensitive

Download