# Construction Scheduling Coursera Quiz Answers

## All Weeks Construction Scheduling Coursera Quiz Answers

Learners will discover the key project scheduling techniques and procedures including; how to create a network diagram, how to define the importance of the critical path in a project network, and defining project activities float. Also covered are the fundamentals of Bar Charts, Precedence Diagrams, Activity on Arrow, PERT, Range Estimating, and linear project operations and the line of balance.

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### Construction Scheduling Week 1 Quiz Answers

#### Quiz 1: Quiz on Gantt Chart

Q1. For the Bar Chart in this diagram: What is the work progress for activity A at the end of month 2?

• 66%
• 50%
• 30%

Q2. For the Bar Chart in this diagram: What is the status of activity B at the end of month 2?

• On schedule
• Behind schedule

Q3. For the Bar Chart in this diagram: What is the schedule status for activity B at the end of month 3?

• On schedule.
• Behind schedule.

Q4. For the Bar Chart in this diagram: What is the status of the entire project at the end of month 3?

• Behind schedule.
• On schedule.

Q5. For the Bar Chart in this diagram: At the end of month 3, what is left for activity A?

• 30%.
• 20%.
• Nothing left at the end of month 3.

Q6. The length of the bar in a bar chart, as shown in the video, represents:

• Cost of an activity in a construction project
• Number of buildings in a construction project
• Length of the planned duration of an activity in a construction project
• Length of the break between each construction activity

Q7. At week 15 of the project, according to the bar chart below, what activities will be completed in the project: • a,b,c,d
• a,b,c,d,e,f,g
• a,b,c,d,e,f

Q1. Which diagram is showing a traditional relationship?

• Diagram #1.
• Diagram #2.
• None of these diagrams are showing a traditional relationship.

Q2. The type of relationship in Diagram #1 is:

• Finish to Start.
• Start to Start.
• Finish to Finish.

Q3. The type of relationship in Diagram #2 is:

• Finish to Start.
• Start to Start.
• Finish to Finish.

Q4. Which diagram has a LAG and by how many days?

• Diagram #1 by 2 days.
• Diagram #2 by 3 days.
• None of the diagrams has any LAG.

Q5. If 3 days of lag have been added to the relationship in Diagram 1, when will Activity B start?

• 13
• 14
• 15
• 9

Q6. Of the relationships in a node network diagram, which one is used most often?

• Start to Start
• Start to Finish
• Finish to Finish
• Finish to Start

Q7. In the diagram below, what would be the early start date for Pouring Concrete?

• 23
• 7
• 37
• 47

Q8. What is the lag in the start to start diagram below?

• 4
• 3
• 1
• 5

Q9. A negative lag is also referred to as a

• win
• penalty
• reverse lag

Q1. According to the video Example 1: Activity On Node Diagram, what is the early start of activity E?

Hint: Please refer to the diagram at 5:00 minutes in the video.

• 9
• 11
• 4
• 19

Q2. For the following project:

N me activity X1

E

Q3. For the following project:

Name activity X2:

B

Q4. For the following project:

Name Activity X3

I

Q5. For the following project:

Name Activity X4

G

Q6. For the following project:

What is the value of X5?

Type and Integer value.

A

Q7. For the following project:

What is the value of X6?

Type and Integer value.

I

Q8. For the following project:

What is the value of X7?

Type and Integer value.

D

Q9. For the following project:

What is the value of X8?

Type and Integer value.

C

Q10. For the following project:

What is the value of X9?

Type and Integer value.

e

Q11. For the following project:

What is the value of X10?

Type and Integer value.

A

Q12. For the following project:

What is the value of X11?

Type and Integer value.

B

Q13. For the following project:

What is the value of X12?

Type and Integer value.

C

Q14. For the following project:

What is the value of X13?

Type and Integer value.

I

Q15. For the following project:

What is the value of X14?

Type and Integer value.

G

Q16. For the following project:

What is the value of X15?

Type and Integer value.

D

Q17. Choose all of the relationships that are represented in a node network diagram.

• First to Last
• Finish to Start
• Best to Worst
• Start to Start
• Start to Finish

Q18. To determine the Early Start of an activity,

• Factor in all its dependencies and see its earliest start date
• Find the earliest calculated time an activity can end
• Find the latest time an activity may begin without delaying the project duration
• Find latest time an activity may be completedwithout delaying the project duration

### Construction Scheduling Week 2 Quiz Answers

#### Quiz 1: Critical Path Method

Q1. In construction industry, any project:

• It can have no critical path.
• It must have at least one critical path.
• It may have or have not critical path depends on its nature.

Q2. If we want to save time and work on decrease the total duration of a project, we can do the following:

• Invest more resources on any activity either critical or noncritical.
• Ask our labors to come and work overtime.
• Focus your resources only on the critical activities.

Q3. If we have 2 construction activities that has conflict of resources; which activity you will give a priority to perform from the below three options:

• The critical activity.
• The longer activity in duration.
• The activity that has more budget.

Q4. From the activity on node diagram in this example (without performing any forward and backward pass calculations) what is the total duration of the project?

• 12
• 15
• 18

Q5. How many critical paths are in this project?

• 1
• 2
• 3

Q6. When it comes to the critical activities in a construction project:

• All critical activities may belong to a critical path.
• A delay in any critical activity will extend the project duration
• All critical activities can be delayed at least 1 day without lengthening the project duration.

Q7. Given the following activities and their durations, determine the duration of the project:

Activity A – duration = 4 days

Activity B – duration = 7 days

Activity C – duration = 2 days

Activity D – duration = 3 days

Activity E – duration = 5 days

Start –> Activity A –> Activity B –> Activity C –> Finish

The duration of the project would be:

• 12 days
• 13 days
• 10 days
• 15 days

Q8. What is the duration of the path; A, B, E and G?

• 20 days
• 18 days
• 16 days
• 14 days

Q9. SELECT ALL paths in the project below:

• ABEHI
• ABEFHI
• ABFHI
• ACDGI
• ACFHI
• ACGI

Q10. Calculate the critical path in the following diagram:

• 9
• 15
• 17
• 19
• 21

Q1. If you are at a construction project and an engineer mentioned that: “This activity has a float of 3 days”. When the engineer did not specify the type of the float, usually the commonly referred to is:

• Total Float
• Free Float
• Independent Float

Q2. What is the total float of any critical activity?

• One Day.
• Zero
• It depends if the critical activity is on a critical path or not.

Q3. What will happen if an activity got delayed from its early start by more than its total float?

• Nothing will be affected.
• Only the activity that follows will be delayed.
• The entire project duration will be delayed.

Q4. Finish the following statement: “The total float is the amount of time that an activity can be delayed from its early start date without delaying the ________ finish date. Free float is the amount of time that an activity can be delayed without delaying the early start date of any ___________ activity”.

• Successor , Project.
• Project, Successor.
• Predecessor, Project.
• Project, Predecessor.

Q5. From the diagram in this example, calculate the following:

The free float of activity D:

• 3
• 4
• 5
• 6

Q6. From the diagram in this example, calculate the following:

The free float of activity B:

• 0
• 1
• 2

Q7. From the diagram in this example, calculate the following:

The total float of activity C:

• 3
• 5
• 8

Q8. From the diagram in this example, calculate the following:

The free float of activity C:

• 3
• 5
• 8

Q9. Suppose this project starts on Feb. 1st, 2017 on a calendar that has Saturday and Sunday as weekend days.

When is the project expected end-date?

• Feb. 17th, 2017
• Feb. 22th, 2017
• Feb. 16th, 2017
• Feb. 30th, 2017

Q10. Suppose this project starts on Feb. 1st, 2017 on a calendar that has Saturday and Sunday as weekend days.

When is the latest start of Activity C?

• Feb 13th 2017
• Feb 12th 2017
• Feb 14th 2017

### Construction Scheduling Week 3 Quiz Answers

#### Quiz 1: Activity Diagram and Critical Path

Q1. Imagine you are a project manager of a power station project. The owner has asked you to prepare a schedule for the project. The details of all the activities are given below. You have to create an activity on arrow (AOA) diagram to help you prepare the schedule of the project. Construct the Activity on Arrow diagram and answer the following questions :

What is the critical path of the project?

• ABCDMPLQR
• ABCDNR
• EHJKLQS
• ABCDHJKLQR

Q2. What is the total project duration ?

• 4​1
• 4​5
• 3​9
• 3​7

Q3. What are the number of dummies in the AOA diagram ?

• 4
• 5
• 3
• 6

Q4. What is the EST of Activity I?

• 20
• 27
• 25
• 22

Q5. What is the LFT for activity J?

• 29
• 21
• 32
• 25

Q1. An activity with Optimistic duration of 3 days, Pessimistic duration of 7 days and Most likely duration of 4 days. What is the estimated duration?

• 3.833
• 4.333
• 5.8333

Q2. Which of the following is true

• Standard deviation = Mean squared
• Mean = Standard deviation squared
• Standard deviation = Variance squared
• Variance = Standard deviation squared

Q3. A project has 3 critical paths with the same duration, which variance should be used in the calculations of project ?

• The lowest value
• The middle value
• The highest value

Q4. A project of expected mean duration of 20 days and variance of 3. What is the probability finishing the project in 22 days?

• 95%
• 87%
• 80%
• 75%

Q5. A project of expected mean duration of 40 days and standard deviation of 5. What is the probability finishing the project in 35 days?

• 84%
• 16%
• 50%
• 78%

Q6. A project of expected mean duration of 100 days and standard deviation of 3.5. What is the probability finishing the project between 95 and 105 days?

• 75%
• 84%
• 95%
• 50%

Q7. For the following list of critical activities in a project, what are the expected duration of the project and the standard deviation

• 25,1.39
• 25,1.94
• 23,1.39
• 27,1.89

Q8. Which of the following is a part of planning the project?

• Resource allocation
• Submittals/approvals

Q9. Which of the following is not a project evaluation metric?

• Earned Cost
• Vacation days
• Float Attrition
• Earned value

Q10. The scheduler role does not include recording the construction procedure implemented in reality.

• True
• False.

### Construction Scheduling Week 4 Quiz Answers

#### Quiz 1: Quiz on Line of Balance

For the following project, 3 sections are expected every week. Each week is 5 working days with 8 hours a day. Find the value of X1?

Provide answers to one decimal place. 1

Q2. For the following project, 3 sections are expected every week. Each week is 5 working days with 8 hours a day. Find the value of X2?

Provide answers to two decimal place. 8

Q3. For the following project, 3 sections are expected every week. Each week is 5 working days with 8 hours a day. Find the value of X3? • 6
• 7
• 8

Q4. For the following project, 3 sections are expected every week. Each week is 5 working days with 8 hours a day. Find the value of X4? • 26
• 27
• 24

Q5. For the following project, 3 sections are expected every week. Each week is 5 working days with 8 hours a day. Using your answers to previous questions, find the value of X5?

Provide answers to one decimal place. 3

Q6. For the following project, 3 sections are expected every week. Each week is 5 working days with 8 hours a day. Using your answers to previous questions, find the value of X6?

Provide answers to one decimal place. 1

Q7. For the following project, 3 sections are expected every week. Each week is 5 working days with 8 hours a day. Using your answers to previous questions, find the value of X7?

Provide answers to three decimal places. 2

Q8. For the following project, 3 sections are expected every week. Each week is 5 working days with 8 hours a day. Using your answers to previous questions, find the value of X8?

Provide answers to one decimal place. 4

Q9. For the following project, 3 sections are expected every week. Each week is 5 working days with 8 hours a day. Using your answers to previous questions, find the value of X9?

Assume 20 units are required.

Provide answers in integer format. 9

Q10. Where should be the buffer, given that Y has higher rate than X? • a
• b
• c

Q1. Draw the Line of Balance Diagram (showing the start and finish of the first and last unit for each activity) and calculate the total project duration for a repetitive project that includes the activities shown in the following Table that are repeated in 20 units. The five activities are sequential with a 5-day buffer between them. The productivity demand is 3 sections per-week, working hours are 8 hours per-day in a 5 day working week.

What is the total duration of the project ?

• 77
• 70
• 80
• 73

Q2. What is total duration of 1 unit of work ?

• 21.5
• 19.3
• 23.5
• 25.1

Q3. Calculate the average time gap between the first unit and start of the last unit.

• 31
• 32
• 27
• 29

Q4. Which activity has the lowest output size?

• C
• A
• B
• D
• E

Q1. Which of the following is not a component of Schedule Analysis?

• Critical path analysis
• Logic analysis
• Earned Value analysis

Q2. Which of the following is best for Schedule Analysis?

• Microsoft Project
• Primavera P6
• Navisworks
• Synchro

Q3. Microsoft Project displays real time Gant Chart as you develop the Activity List?

• True
• False

Q4. What color does Microsoft Project use for critical path tasks?

• Black
• Orange
• Red
• Blue

Q5. Select ALL right answers, P6 features include:

• Grouping activities using WBS
• Creating project reports in PDF
• Setting work calender

Q6. Select ALL right answers, P6 Gant charts show:

• Critical Activities
• Activity relationships
• Activity durations
• Activity cost

Q7. Circular logic can be detected by scheduling software.

• True
• False

Q8. If earned duration is lower than current project day, the project is:

• Delayed
• On plan

Q9. Revit can embed only Revit format files

• True
• False

Q10. In Syncrhro, exported videos have to have a certain layout with specific colors and components.

• True
• False

### Construction Scheduling Week 5 Quiz Answers

#### Quiz 1: Quiz on Large programs, Risk and Lean

Q1. Which of the following is not a program management typical responsibility?

• Issuing public information for the media about projects
• Setting projects costs and schedule
• Tracking day to day progress of each individual project

Q2. IMS stands for

• International Manner Syndicate
• Integrated Magnification System
• Internal Machinery Schedule
• Integrated Master Schedule

Q3. The IMS may not include:

• Project milestones
• Key risk items
• Stakeholder activity
• All the above

Q4. A project appears in the IMS as:

• A detailed list of activities
• A bar, including indications of project milestone
• A cost analysis study

Q5. Risk is an uncertain event that, if it occurs, has an effect on at least one project objective. Which of the following is a project objective that may be affected by risk:

• Project quality
• Project cost
• Project time
• All the above

Q6. According to the lectures, in Design-Build-Finance projects, the project is expected to have shorter overall duration:

• True
• False
• Not necessarily

Q7. Which of the following is not a risk treatment option:

• Avoid
• Mitigate
• Confess
• Transfer

Q8. Modelling risk may include:

• Structural failure simulations
• Monte Carol simulations
• Life balance simulations

Q9. Confidence level is a typical risk simulation output

• True
• False

Q10. Which of the following is on the Tornado Graph of Top Risks

• Systems construction
• Integration testing
• Systems testing
• All the above

Q11. Time is of paramount importance because:

• Interest rates fluctuate
• It takes years to master one’s professional expertise
• More money and quality can be created
• All the above

Q12. A “great” schedule offers superior:

• Visual Management; Ease of Revision
• Early and Late dates for Start and Finish
• “S” Curves

Q13. The Lean Big Four consists of:

• Theory, Pull-Planning, Target Value Design, Choosing By Advantages
• Theory, Pull-Planning, Target Value Design, Set Based Design
• Pull-Planning, Target Value Design, Set Based Design, Choosing By Advantages

Q14. Pull-Planning reduces project schedules because:

• Milestones are placed at hand-offs, enabling next steps in the process
• Gantt Charts are easier to read than CPM method
• Individual trades only have to focus on delivering their work
• It works backwards from deadline

Q15. Well-performing projects achieve Percent Promises Completed in the range of:

• 35%-65%
• 75% – 85%
• 100%
• 50% +/- 5%
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