PMI-SP® Sample Questions and Answers for Exam Preparation

Your project schedule looks perfect on paper. But what happens when activities run late, resources become unavailable, or project priorities change?

That's where practical scheduling knowledge makes a difference. Preparing for the PMI Scheduling Professional (PMI-SP) exam requires you to understand scheduling techniques, analyse project scenarios and make informed decisions.

PMI-SP sample questions can help you practise these skills and identify areas that need further revision. This blog brings together practice questions covering all five official PMI-SP examination domains, complete with answers, explanations and useful preparation tips.

PMI-SP Sample Questions by Domain

The following PMI-SP practice questions are developed around the topics covered in PMI's official Exam Content Outline. They are intended for learning and revision and are not official PMI examination questions.

Domain 1: Schedule Strategy

5 Sample Questions | Exam Weight: 14%

Schedule Strategy focuses on establishing scheduling approaches, policies, procedures and requirements. It also addresses how scheduling activities are integrated with other areas of project management.

1) What is the primary purpose of establishing schedule configuration management procedures?

a) To estimate activity costs before developing the project schedule

b) To control schedule information, changes and baseline documentation

c) To identify resource requirements for every activity

d) To determine the project's final completion date

Answer: B. To control schedule information, changes and baseline documentation.

Explanation: Schedule configuration management establishes procedures for storing, retrieving, maintaining and controlling schedule information, including the identification, documentation and control of approved schedule baseline changes.

2) Which factor should be considered when selecting a scheduling approach?

a) The Project Manager's preferred reporting format alone

b) The number of activities completed in previous projects

c) Project characteristics, contractual requirements and organisational procedures

d) The scheduling software used by competitors

Answer: C. Project characteristics, contractual requirements and organisational procedures.

Explanation: The scheduling approach should reflect the project's specific needs, organisational process assets and enterprise environmental factors.

3) Which of the following should be established in a schedule management plan?

a) Scheduling methodology, performance thresholds and approval procedures

b) Final project acceptance and handover records

c) Actual activity completion dates for all project tasks

d) Final schedule variance and closeout documentation

Answer: A. Scheduling methodology, performance thresholds and approval procedures.

Explanation: A schedule management plan defines how the schedule will be developed, monitored and controlled, including tools, procedures, reporting formats and control thresholds.

4) Why should scheduling requirements be integrated with other project management plans?

a) To ensure the scheduling team replaces the Project Manager

b) To prevent the need for schedule performance reporting

c) To remove dependencies between scheduling and procurement

d) To align scheduling activities with scope, cost, resources and contractual requirements

Answer: D. To align scheduling activities with scope, cost, resources and contractual requirements.

Explanation: Scheduling affects multiple project management areas. Integrating schedule-related requirements supports coordinated planning and decision-making.

5) Why should the scheduler communicate scheduling objectives and procedures to project team members?

a) To transfer responsibility for the approved schedule baseline

b) To establish a shared understanding of scheduling responsibilities and expectations

c) To eliminate the need for subsequent schedule updates

d) To allow activity owners to change the baseline independently

Answer: B. To establish a shared understanding of scheduling responsibilities and expectations.

Explanation: Communicating scheduling goals, procedures and responsibilities helps team members understand their roles in developing and maintaining the project schedule.

Trainer Insight: Understand the Schedule Baseline

A schedule baseline is an approved reference for measuring performance, not a document that changes whenever delays occur. Actual progress and forecasts can be updated regularly, but baseline changes must follow the approved change control process.

Domain 2: Schedule Planning and Development

8 Sample Questions | Exam Weight: 31%

This domain focuses on developing project schedules using activity definition, duration estimation, dependencies, resource planning and schedule analysis techniques.

6) What is the primary purpose of a Work Breakdown Structure (WBS)?

a) To organise project scope into a hierarchy of deliverables and work packages

b) To display actual resource utilisation during execution

c) To determine the project's Schedule Performance Index

d) To identify the project's final schedule variance

Answer: A. To organise project scope into a hierarchy of deliverables and work packages.

Explanation: A WBS decomposes project scope into manageable components. Work packages help establish the basis for defining activities and developing the project schedule.

7) An activity has an optimistic duration of 4 days, a most likely duration of 7 days and a pessimistic duration of 16 days. What is its PERT expected duration?

a) 7 days

b) 8 days

c) 9 days

d) 10 days

Answer: B. 8 days.

Explanation: Using the traditional PERT weighted-average formula, which gives the most likely estimate four times the weight of the other estimates:

Expected Duration = (O + 4M + P) / 6

= (4 + 4 × 7 + 16) / 6

= 48 / 6

= 8 days

The expected duration is 8 days.

8) A successor activity cannot begin until its predecessor has finished. Which dependency relationship does this represent?

a) Start-to-Start (SS)

b) Finish-to-Finish (FF)

c) Finish-to-Start (FS)

d) Start-to-Finish (SF)

Answer: C. Finish-to-Start (FS).

Explanation: A Finish-to-Start relationship means the successor cannot start until the predecessor finishes. It is commonly used when sequencing project activities.

9) A project has two independent paths from start to finish. Path A takes 18 days, and Path B takes 23 days. Assuming no resource constraints or additional date constraints, which path is critical?

a) Path A, because it has the shorter duration

b) Both paths, because they belong to the same project

c) Neither path, because their durations are different

d) Path B, because it has the longer duration

Answer: D. Path B, because it has the longer duration.

Explanation: Under the stated assumptions, the critical path is the longest-duration path through the project network and determines the earliest possible project completion time.

10) What is the purpose of Monte Carlo simulation in schedule risk analysis?

a) To evaluate a range of possible schedule outcomes under uncertainty

b) To ensure that every project activity finishes on time

c) To establish the organisation's scheduling policies

d) To eliminate the need for estimating activity durations

Answer: A. To evaluate a range of possible schedule outcomes under uncertainty.

Explanation: Monte Carlo simulation uses repeated calculations with uncertain input values to estimate potential project completion dates and the likelihood of achieving specified milestones.

11) What is the primary purpose of resource levelling in project scheduling?

a) To shorten every activity in the schedule

b) To resolve resource overallocation by adjusting activity timing based on resource availability

c) To eliminate dependencies between project activities

d) To increase the number of resources assigned to every task

Answer: B. To resolve resource overallocation by adjusting activity timing based on resource availability.

Explanation: Resource levelling adjusts activity start and finish dates to address resource limitations or overallocation. Depending on the resource constraints, it may change the critical path or extend the project duration.

12) An activity has an Early Start (ES) of day 5 and a Late Start (LS) of day 9. What is its total float?

a) 3 days

b) 4 days

c) 5 days

d) 9 days

Answer: B. 4 days.

Explanation: Total float can be calculated using the difference between Late Start and Early Start.

Total Float = LS − ES

= 9 − 5

= 4 days

The activity has four days of total float, assuming a consistent scheduling calendar and no additional constraints affecting the calculation.

13) What is the primary purpose of establishing an approved schedule baseline?

a) To document only the resources allocated to each activity

b) To eliminate the need for future schedule updates

c) To provide an approved reference against which schedule performance can be measured

d) To record only the project's final completion date

Answer: C. To provide an approved reference against which schedule performance can be measured.

Explanation: A schedule baseline is the approved version of the project schedule used to compare planned and actual performance. It helps identify deviations and supports formal schedule control.

Domain 3: Schedule Monitoring and Controlling

9 Sample Questions | Exam Weight: 35%

Schedule Monitoring and Controlling is the highest-weighted PMI-SP examination domain. It focuses on monitoring activity progress, identifying schedule variances, evaluating resource constraints, forecasting completion dates and managing schedule changes.

These questions include scheduling calculations, project scenarios and corrective action decisions.

14) During a weekly schedule update, an activity owner reports that an activity is 60% complete. What additional information would best help the scheduler update the activity's forecast completion date?

a) The original activity budget

b) The date the activity was first approved

c) The estimated remaining duration and actual progress information

d) The total number of project stakeholders

Answer: C. The estimated remaining duration and actual progress information.

Explanation: Percentage complete alone may not accurately predict when an activity will finish. Actual progress, remaining duration and the current reporting date help the scheduler produce a more reliable forecast.

15) A project schedule shows that a specialist is assigned to two activities requiring their full-time availability during the same period. What should the scheduler do first?

a) Remove one activity from the schedule

b) Review resource availability and assess suitable resource allocation adjustments

c) Increase the duration of every project activity

d) Change the approved schedule baseline immediately

Answer: B. Review resource availability and assess suitable resource allocation adjustments.

Explanation: Resource monitoring identifies overallocation and availability constraints. The scheduler should evaluate resource assignments, calendars and potential adjustments before recommending changes.

16) A project has an Earned Value (EV) of £120,000 and a Planned Value (PV) of £150,000. What does its Schedule Performance Index (SPI) indicate?

a) SPI = 1.25, indicating more value has been earned than planned

b) SPI = 1.00, indicating performance matches the plan

c) SPI = 0.50, indicating half the planned value has been earned

d) SPI = 0.80, indicating less value has been earned than planned

Answer: D. SPI = 0.80, indicating less value has been earned than planned.

Explanation: The Schedule Performance Index (SPI) is calculated by dividing Earned Value (EV) by Planned Value (PV).

SPI = EV / PV

= 120,000 / 150,000

= 0.80

An SPI below 1 indicates that earned value is lower than planned value at the measurement date. It does not necessarily mean the project is 20% behind in calendar time.

17) A critical activity is forecast to finish six days late. The Project Manager asks the scheduler to evaluate possible recovery options. What is the most appropriate next step?

a) Use what-if analysis to assess alternative execution sequences, resource options and potential impacts

b) Remove the delayed activity from the project schedule

c) Change the baseline completion date without approval

d) Reduce all activity durations by six days

Answer: A. Use what-if analysis to assess alternative execution sequences, resource options and potential impacts.

Explanation: What-if analysis allows the scheduler to compare recovery alternatives, such as schedule compression or resource adjustments, while considering their effects on dependencies, costs and risks.

18) An approved change request adds risk mitigation activities and authorises corresponding changes to the project schedule baseline. What should the scheduler do?

a) Retain the existing baseline without recording the approved changes

b) Update only the project team's informal progress report

c) Incorporate the approved activities, update the schedule baseline through change control and preserve change records

d) Postpone all schedule updates until the project closes

Answer: C. Incorporate the approved activities, update the schedule baseline through change control and preserve change records.

Explanation: Approved changes should be incorporated into the schedule model according to formal change control procedures. Relevant baseline documentation and change records should be maintained to support performance tracking and future analysis.

19) A project has an Earned Value (EV) of £90,000 and a Planned Value (PV) of £110,000. What is its Schedule Variance (SV)?

a) +£20,000

b) −£20,000

c) £200,000

d) −£10,000

Answer: B. −£20,000.

Explanation: Schedule Variance is an Earned Value Management measure calculated by subtracting Planned Value from Earned Value.

SV = EV − PV

= £90,000 − £110,000

= −£20,000

A negative SV indicates that the project has earned less value than planned at the measurement date. It does not directly represent the number of days behind schedule.

20) During a schedule update, a previously non-critical path becomes longer than the original critical path. What should the scheduler do?

a) Continue monitoring only the original critical path

b) Remove the activities on the newly extended path

c) Analyse the updated network to identify the current critical path and assess its effect on the forecast completion date

d) Restore the original critical path by changing the baseline immediately

Answer: C. Analyse the updated network to identify the current critical path and assess its effect on the forecast completion date.

Explanation: The critical path may change as activities progress, delays occur, or dependencies are modified. The scheduler should review the updated network and evaluate potential effects on project completion.

21) A project is currently forecast to finish 12 days later than its approved baseline completion date. What should the scheduler do to improve the reliability of the completion forecast?

a) Review actual progress, remaining durations, dependencies and relevant schedule constraints

b) Retain the original completion date without further analysis

c) Reduce every remaining activity duration by 12 days

d) Remove delayed activities from the scheduling model

Answer: A. Review actual progress, remaining durations, dependencies and relevant schedule constraints.

Explanation: Reliable schedule forecasting requires current activity information, realistic remaining durations, updated dependencies and consideration of scheduling constraints. These factors help identify a reasonable forecast completion date.

22) A project is experiencing repeated delays on critical activities. Which approach is most appropriate when assessing corrective actions?

a) Approve every proposed recovery action immediately

b) Remove activities with negative float from the schedule

c) Increase resources on all project activities without analysis

d) Evaluate recovery alternatives for their effects on schedule, cost, resources and risks before recommending action

Answer: D. Evaluate recovery alternatives for their effects on schedule, cost, resources and risks before recommending action.

Explanation: Corrective actions should be assessed before implementation. Techniques such as crashing, fast tracking and resource adjustments can help recover schedule performance, but may introduce additional costs, resource demands or risks.

Common Scheduling Mistakes to Avoid

1. Confusing the Baseline with the Forecast: A delayed activity does not automatically justify changing the approved baseline.

2. Ignoring Resource Constraints: Review resource availability before recommending schedule adjustments.

3. Relying Only on Percentage Complete: Consider remaining duration and actual progress when forecasting completion.

4. Overlooking Changes to the Critical Path: Reassess the critical path after significant schedule updates.

5. Selecting Recovery Actions Without Analysis: Consider the cost, resource and risk implications of crashing or fast tracking.

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Domain 4: Schedule Closeout

3 Sample Questions | Exam Weight: 6%

Schedule Closeout involves reviewing final schedule performance, documenting lessons learned and completing relevant scheduling responsibilities.

23) What is the primary purpose of evaluating final schedule performance against the approved schedule baseline?

a) To identify performance differences and capture lessons learned

b) To replace the project's contractual completion requirements

c) To establish a new baseline for the completed project

d) To eliminate historical performance records

Answer: A. To identify performance differences and capture lessons learned.

Explanation: Evaluating final schedule performance helps identify deviations, assess scheduling practices and document improvements for future projects.

24) How should lessons learned from project scheduling be used after closeout?

a) They should be retained only by the project scheduler.

b) They should be documented and incorporated into relevant organisational process assets.

c) They should replace the approved project schedule.

d) They should be excluded from future scheduling procedures.

Answer: B. They should be documented and incorporated into relevant organisational process assets.

Explanation: Documenting lessons learned and updating organisational process assets helps improve scheduling methods, procedures and future project performance.

25) Why should final schedule models, change logs and status reports be archived?

a) To preserve records for contractual requirements, future reference and potential forensic schedule analysis

b) To prevent future project teams from reviewing previous schedules

c) To eliminate the need for schedule closeout reports

d) To replace all project risk documentation

Answer: A. To preserve records for contractual requirements, future reference and potential forensic schedule analysis.

Explanation: Archiving schedule records helps meet applicable contractual and organisational recordkeeping requirements, supports organisational learning and provides evidence for possible future analysis of delays or schedule changes.

Domain 5: Stakeholder Communications Management

5 Sample Questions | Exam Weight: 14%

Stakeholder Communications Management focuses on providing relevant schedule information, reporting progress and communicating potential scheduling issues to stakeholders.

26) Which approach best supports the visibility of a project schedule?

a) Sharing schedule information only after the project finishes

b) Providing relevant and accessible schedule updates to stakeholders

c) Restricting all schedule information to the scheduling team

d) Reporting only completed activities without future milestones

Answer: B. Providing relevant and accessible schedule updates to stakeholders.

Explanation: Schedule visibility helps stakeholders understand progress, upcoming milestones and potential challenges. Information should be communicated in suitable formats and at appropriate intervals.

27) What should be included in a schedule status report to senior management?

a) Only detailed activity codes and software settings

b) Only the original schedule baseline

c) Key milestones, current schedule performance, forecast impacts and corrective actions

d) Only completed administrative tasks

Answer: C. Key milestones, current schedule performance, forecast impacts and corrective actions.

Explanation: Senior management needs relevant, concise information about schedule performance and significant changes to support informed decisions.

28) A supplier delay is expected to affect a contractual project milestone. What should the scheduler do?

a) Communicate the issue and its forecast impact to the appropriate stakeholders in accordance with the communication management plan

b) Wait until the contractual milestone has passed before reporting the delay

c) Change the baseline completion date without obtaining approval

d) Remove the supplier's activities from the schedule

Answer: A. Communicate the issue and its forecast impact to the appropriate stakeholders in accordance with the communication management plan.

Explanation: Significant schedule issues should be communicated promptly through established reporting procedures so stakeholders understand their potential impact on project delivery.

29) What is the primary purpose of developing effective relationships with project stakeholders?

a) To eliminate all project scheduling risks

b) To transfer schedule approval authority to the scheduler

c) To prevent stakeholders from requesting schedule information

d) To improve cooperation, understanding and support for the project schedule

Answer: D. To improve cooperation, understanding and support for the project schedule.

Explanation: Effective stakeholder relationships support communication, collaboration and shared understanding of project scheduling objectives and requirements.

30) A project sponsor requests a concise schedule update, while the project scheduler needs detailed activity-level information for analysis. What is the most appropriate communication approach?

a) Provide the same detailed technical report to every stakeholder

b) Provide only a high-level milestone chart to all stakeholders

c) Exclude schedule risks from executive reporting

d) Tailor schedule information to each audience while maintaining consistency in the underlying data

Answer: D. Tailor schedule information to each audience while maintaining consistency in the underlying data.

Explanation: Stakeholders have different information needs. Senior management may require high-level performance summaries, while scheduling professionals need detailed activity and dependency data. Communications should remain accurate and consistent.

Tips for Answering PMI-SP Questions

Here are some practical tips to help you prepare for the PMI-SP® Certification examination:

1) Understand the PMI-SP Exam Format: The exam has 170 multiple-choice questions, including 150 scored and 20 unscored questions, with a duration of 210 minutes. Practise managing your time effectively.

2) Read Each Question Carefully: Pay attention to keywords such as "NOT", "EXCEPT", "FIRST" and "BEST", as they can change the question's meaning.

3) Eliminate Incorrect Answers: Remove options that do not fit the question and use your scheduling knowledge to select the most appropriate answer.

4) Focus on Scheduling Calculations: Practise total float, critical path analysis, Schedule Variance (SV), Schedule Performance Index (SPI) and duration estimation.

5) Apply Your Practical Experience: Relate questions to real-world situations involving resource constraints, delays, dependencies and schedule changes.

6) Use Official PMI References: Review the PMI-SP Exam Content Outline, PMBOK® Guide and Practice Standard for Scheduling to strengthen your understanding.

7) Review Your Practice Results: Analyse incorrect answers and focus on difficult topics, particularly Schedule Planning and Development and Schedule Monitoring and Controlling, which together account for 66% of the exam.

Your PMI-SP Exam Readiness Checklist

□ I understand the five PMI-SP examination domains and their weightings.

□ I can identify activity dependencies and determine the critical path.

□ I can calculate PERT expected duration, total float, SPI and SV.

□ I understand the difference between a schedule baseline and a current forecast.

□ I can assess resource constraints and schedule recovery options.

□ I can interpret schedule scenarios and select appropriate corrective actions.

□ I have reviewed my incorrect answers and identified areas requiring further study.

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