Where, T L j = T he Latest expected time for event j, T E j = The Earliest allowable time for event j. (a) Compute the relevant information and include the information on the figure, and complete the following table: Early Finish Late Finish Free Float Total Float Finish grade Gravel roadway Compact road Set entry gate b) The critical activities are: c). Project Float = (Latest Finish) – (Earliest Finish) 4. Calculate the total float, free float, and interfering float for each activity. It is calculated by subtracting free Float from the total float of the activity. i, ii, iv Soln: Total = 10=Free= Independent; Interfering = 0; 14. It is thus equal to the head event slack. causes a reduction in the float of the successor activities. Float for the third path = 31 – 26 = 5 days. Headoutdaplane • 10 mo. Interfering float 105 Independent float 105 Intermittent float 106 Negative float 107 Terminal float 108 Internal float 108 Contingency 109 Manipulation of float 110 Who owns the float? 111 Monitoring progress and managing the time model 112 Reviewing the assumptions used to produce the schedule 113Political Science. 93. I need 1/2 hour to get dressed, 15 minutes for my pastry to heat in the oven, but that can heat that while I'm getting dressed. Interfering float 105. Access Construction Management Fundamentals 2nd Edition Chapter 4 Problem 9RQ solution now. The Interfering float of activity C is 15. length (float) – End to end length of the thread. Interfering Float (INTF) 5. Independent float F I D: It is defined as the amount of time by which an activity can be delayed without affecting the succeeding activity and preceding activity. total float. Float which can be "used up" without affecting other tasks is known as "Free Float", float which will affect the timing of other tasks is known as "Interfering Float". Write this number at the bottom right corner. Thus, independent float can be calculated as under: Independent Float = Total. Free Float: The amount of time that a schedule activity can be delayed without delaying the early start date. Interfering float is the difference between. The float property does not require the application of any other property on a CSS element for float to function correctly, however, float will work more effectively under specific circumstances. About Quizlet; How Quizlet works; Careers; Advertise with us; Get the app;Interfering float: may be defined as the maximum . 2. Ans. T his is quite commonly used, particularly in association with the free float. Start calculations with day zero. The reasonB. Days = From Question 3 ) ES = ES of Tail or Tail event of Activity 4 ) EF = ES + Duration 5 ) LF = LF of Head or Head Event of Activity 6 ) LS = LF - Duration 7 ) Total Float = LS – ES OR LF – EF 8 ) Interfering Float = Slack of Head Event or Total Float – Free Float 9 ) Free Float = TF - Interfering Float or TF – Slack of Head Event 10 ) Independent Float = FF. Interfering float= LFT(present)- EST(succeeding)This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Draw the bar chart, AOA, and AON network diagrams for the following project. Activity float. is shared between two or more activities. Total float is the amount of time by which an activity may be delayed without delaying the project completion Caution: interpret total floats of activities carefully - all can not be used independently Free float is that part of total float which can be used without affecting floats of the succeeding activities Independent float is the amount of. However, the FM Network can accept no responsibi. 10 Table P10. B-P-C-G-H-J. Interfering Float INTF is defined as the time span in which the completion of an activity may occur and not delay the termination of the project but within which the completion will delay the. Interfering float; Free float Total flat; Answer :Free float Construction Management MCQ Practice Questions (Civil Eng) Set 2. Updated February 3, 2023 Developing an accurate project schedule and tracking your team's progress is important for ensuring clients and customers receive the finished. (d) Give a critical path. Question 8 (5 points) Saved The forward pass is a: Question 8 options: assigning logic relationships for succeeding activities. Project float = (latest finish) - (earliest finish) Interfering float (INFT) An INFT delays an activity from its planned start date without affecting the initiative's completion date. PDM was eventually extended to calculate Fondahl's link lag concepts for SS, FF, and SF relationship types. Dự trữ gốc (Interfering Float): thời gian dự trữ khởi công của công việc ij, trong đó sự hoàn thành công việc có thể thay đổi mà không ảnh hưởng đến thời gian hoàn thành dự án nhưng ảnh hưởng đến thời gian bắt đầu của các công việc phía sau vàThe floatation unit comprises at least one floatation cell (5), by means of which a cleaned accepted material (7) and a floating floatation foam (3, 4) containing interfering substances, reject, which flows out into a foam collection channel (8, 9) from the surface of the paper fibrous-material suspension (S), are formed in that an air flow is blown into the fiber. 53701 (Software Project Management) Answer Key Q. Interfering Float: It is similar to head event slack. Civil Engineering questions and answers. A critical path is an activity or event that, if delayed, will delay project completion. The difference between total float and free float, is called interfering float. interfering Float is the maximum amount of time an activity may be delayed without delaying the entire project but causing a delay to the succeeding activities. Hence the correct answer. Previous question Next question. Compute the values of ES, EF, LS, LF, FF, and TF for the activities. Total float and free float. 4. Image transcriptionsFinal answer. 4. Free float 3) Independent float 4) interfering float So, I think option (c) is correct. Independent float is the time by which starting or finishing of an activity can be delayed without affecting the total float of its proceeding and succeeding activity. Using these formulae the values are calculated and tabulated in the table. INTF is defined as the time span in which the completion of an activity may occur and not delay the termination of. c ) particular activity. It affects both succeeding and proceeding activities. Manipulation of float 110. If negative, evaluate as "0". Consider the following statements associated with critical pat 1. Independent float: It is the minimum excess available time which exists without affecting any of succeeding or preceding activities. i, iii, iv d. It is the difference between the latest finish time of the activity in. 2 weclivity Cis E, 4 week 3 weeks wcks D-3 weeks B. Share. Compute the values of ES, EF, LS, LF, FF, and TF for the activities. An activity can be delayed by an amount up to its independent float without delaying the start of any other activity. e. Costs Involved in Project Crashing: Direct, Indirect, Penalty and Total Costs. Interfering Float: (F IN) The maximum amount by which an activity can be delayed without delaying the project but will cause delay to the Early Start of some following activity. None of the above. It does not affect start of succeeding activity i. Freefloat : Portion of the total float within which an activity can be manipulated without affecting the floats of subsequent activities. Learn more. Q 11. In other words, suppose you have a project to. Interfering Float (INTF): The amount of time that a schedule activity can be delayed or extended from its early start date without delaying the project finish date, but delaying an activity into interfering float will delay the start of one or more following non-critical activities. If the float is positive and the activity is delayed by a period equal to its total float, the completion of project is not delayed; The float may be positive, zero or negative. 1. By definition: Total Float (TF) = the maximum amount of time an activity can be delayed from its early start without delaying the entire project. It is denoted as FF. Total Float. . Interfering float (INTF) INTF refers to the time you can delay a task from the date you planned to start it without delaying the project's completion date. Once this has been done, the total float of any activity is simply the difference between the latest finishing time (LF) obtained from the backward pass and the earliest finishing time (EF) obtained. doi: 10. Set up the ES, EF, LS, LF, TF, FF, and interfering float (IF) table and indicate the critical path. interfering (shared) float d. ALL ABOUT CRITICAL PATH METHOD (CPM) SCHEDULE MANAGEMENT SCHEDULE MANAGEMENT: FAQs VLOGS – LOUNGING AROUND The Advantages of Float Tube Fishing; Float Tube Fishing: The Tube. 3. PMBOK Guide definitions of Total Float and Free Float. البوست ده عن ٤ انواع لل Float بتظهر فى الجداول الزمنية هنتكلم عليهم. (b) Project Crashing Meaning of Project Crashing. It does not affect the start of succeeding activity i. On the network diagrams calculate and show the early start (ES), early finish (EF), last start (LS), late finish (LF), and total float (TF) for each activity using network-specific notation. Highlight the critical path. This is where float in project management comes in. Komal Bhandakkar AUTHOR. It is the difference between the latest finish time of the activity in question and the earliest starting time of the following activity or zero, whichever is larger. Calculate the total, free, and interfering float of activity 20 What is the project duration? What are the critical activities? Calculate the total, frec, and interfering float of activity 202. Thus, the Total Float is 2 days. Interference Float (IntF) or Shared Float (SF) 8. Independent float does not affect other activities. Total Float of an activity = Late Start of an activity – Early Start of an activity. first. portion of positive total float. Project float: Project float means there’s a soft deadline and a hard deadline for the project delivery. Interfering Float: It is similar to head event slack. Interfering Float (INTF): The amount of time that a schedule activity can be delayed or extended from its early start date without delaying the project finish date, but. Negative (total) float can occur when the forward pass of the network extends beyond the customer's end date. Any delay in an activity on the critical path would reduce the amount of total float available on the project. The reason Interfering Float was calculated was so that it was part of the activity record (with punch cards, etc it was very difficult to include data from different record types in a report). Code: 57826 6 • Hammock activities are activities which have zero duration and to start at the same time as the first hammocked activity. i)Critical path ii)Float iii)Free float iv)Interfering float v)Hammock activity • Critical path is the path through network with zero floats. In other. 5. fx file. In this case total float of activity E and F are 8. Pick the wrong relationship: A. Float sendiri terbagi menjadi beberapa bagian di antaranya adalah total float, free float, interfering float, dan independent float. Free float: It is the amount of time that the activity completion time can be delayed without affecting the earliest start time of the immediate successor activities in the network. The Advantages of Float Tube Fishing; Float Tube Fishing: The Tube. total float c. This video includes explanation and calculation of interfering float. Free Float: The amount of time that a schedule activity can be delayed without delaying the early start date. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How. Interfering float: It is just another name given to head event slack. Project Float 4. FIN = FT - FF = Sj ( Statement 1 is correct) Where, F T is Total. Independent Float: It is the minimum excess available time which exists without affecting any of succeeding or preceding activities. B. PDM was eventually extended to calculate Fondahl's link lag concepts for SS, FF, and SF relationship types. It is thus equal to the head event slack. By delaying a task, you might impact the start date of another activity that's not crucial to meeting the project deadline, but it's important that this delay doesn't impact critical tasks that can postpone a. free float and independent float . Critical activity . In project scheduling, the free float (slack) of an activity represents the leeway for scheduling the activity without affecting any subsequent activity. F = T E j − T L i − t i j = F F − S i. It is the difference between the latest finish time of the activity in question and the earliest starting time of the following activity or zero, whichever is larger. 31) shows that in order to calculate the total float, it is necessary to carry out the forward and backward pass. Interfering float: It is similar to head event slack. Independent Float (INDF) See moreProject management float refers to the amount of time that you can delay a task without impacting other parts of a project's timeline or missing the overall completion. Where, F T is Total Float, F F is Free float In construction project, float or slack is the amount of time that a task in a project network can be delayed without causing a delay to: 1. When leveraged properly, project managers can shift activities and resources to meet the project objectives and priorities. See Correct Answer. Project PlanningFree float can never be less than zero. This is spare time associated with a particular activity. Q. 3. Float for the fifth path = 31 – 16 = 15 days. Network 공정표에서의 간섭여유(Dependent Float or Interfering Float) 3. It is the part of the total float that remains after free float is deducted. 3 From the following network data, determine the critical path, starting and finishing times, and total and free floats. all of my videos at my Facebook Page: #totalfloat #freefloat #independentfloat #float #cpm #operationsresearch #resourcemanagement #engineeringmathematics #bca #bcom Interestingly, project float connects to the commitment of the project manager for a specific completion target. How long is the project duration? Successor(s) Duration APTER Act. Start with the critical path, beginning at the last activity’s late finish. This is quite commonly used, particularly in association with the free float. Total float A contingency is used to cover conditions that reasonably be determined during the design, change orders, and other project risks. Float Calculation Event Oriented Here Activities are shown as i-j, where i is tail event & j is head event e. Given For Activity i-j: Total Float 18 d Free Float 7 d 11 Question(s) 1. Free float: The delay which can be made without delaying succeeding activities. a risk. The free – float affects only. number of origins are less than the number of destinations. It is the difference between the latest finish time of the activity in question and the earliest start time of the following activity or zero, whichever is larger. critical float. Figure 3. 10 Dishonland o ns are indi A 5 men 7 men 8 men IT mou 9. If the float is positive and the activity is delayed by a period equal to its total float. Determine (show calculations) the independent float and interfering float for Activity H. We Simplify Project Management Amount of time is used in the Projects Controlling. total float and independent float . The sequence of critical activities in. 2. g. How long is the project duration? Successor(s)/ Relationship B /SF4 Duration(days) Activity C/SS4 10FLOAT/ SLACK TYPES OF FLOATS A float is the time Total Float:- The total time that a schedule activity can be delayed. INTF is defined as the time span in which the completion of an activity may occur and not delay the termination of the project but within which the completion will delay the start of some other following activity . Independent Float: It is the minimum excess available time which exists without affecting any of succeeding or preceding activities. The four types of float possible. Professor Odeh introduces the types of floats in a construction project including; total float, free float, interfering float and independent float. F IN = F T - F F = S j . (40 points) Oct 13 2022 06:56 AM. Concept: Independent float is the time by which starting or finishing of an activity can be delayed without affecting the total float of its proceeding and succeeding activity. A: Basic concept introduction- Float- Float is associated with the activity times. But with the interfering float, Framing is now delayed and can't start until Day 19. It is thus equal to the head event slack. Fishing float tubes are available from the major online outdoors and fishing retailers and generally cost anywhere from $100 to. Calculate the total float, free float, and interfering float for each activity. Interfering float: the difference between the total float and free float. Free Float. 2. This Question Belongs to Civil Engineering >>. Select one: O a. Calculate the total float, free float, and interfering float for each activity. (25 Marks) Activity IPA Duration Lag Activity IPA Duration Lag A 4 E B 4 B 9 F B, C 2 A 6 D G 6 A E 3 D 4 Roll B H F, G 3 No. Interfering float (INTF) Interfering float refers to the length of time you can delay a task without impacting the overall schedule. delaying the entire project but causing delay to the . Rate this question: 8. It is the difference between total float and free float. Interfering float: Interfering float refers to the delay in starting a task rather than a delay in finishing it. Question: For the arrow network information provided below, without drawing a network diagram, calculate the early start and finish dates, the late start and finish dates, the total float, free float, interfering float, and the independent float. (a) Total float. 1 Develop the precedence diagram network for the following project and then calculate the total float, free float, and interfering float for each activity. total float =free float + independent float. It is the amount of time an activity can be delayed without impacting other activities or the project end date and changes over the course. • The time span in which the completion of an activity may occur and not delay the termination of the project but within which completion will delay the start of some other following activity (non-critical ones). It affects only preceding activities. a) Construct an activity network for the preceedance table. F IN = F T - F FFloat is the amount of time by which an activity can be delayed or extended. d. Total Float. ago. Concept: Independent float is the time by which starting of an activity can be delayed without affecting the total float of its proceeding and succeeding activity. 1 weeks B. Using the AOA diagram, (I) identify the critical path. Last updated on Nov 8, 2023 GPSC AE Answer Key released for AE Mechanical (Advt No. Interfering Float. See Answer See Answer See Answer done loading 25 . Negative float, also known as negative slack, is the amount of time beyond aproject's. Floating on both sides separately without interfering. Download Solution PDF. apex_offset (float) – Asymmetric thread apex offset from center. [A] Total float and independent float[B] Total float and free float[C] Free float and independent float[D] Independent float and free float Answer: Option B. 2601636 Keywords: project management; critical path method; floats; activity network IntroductionQuestion: Consider the following information about a project whose activities are only connected through regular FS relationships (no lags) An Activity A has a total float of 10 days, of which 9 days are interfering float Its only succeeding activity, Activity B, has a total float of 12 days. . 8. 2) What are the different categories of reporting?The float is an important element in the project schedule that can be used by contractors to change the start of noncritical activities for resource management purposes, and by owners to. A. Free Float = ES of next Activity – EF of Current Activity. Independent Float: It is the minimum excess available time which exists without affecting any of succeeding or preceding activities. The sequence of critical activities in. This is quite commonly used, particularly in association with the free float. 5. It is the path with the greatest total. What is interfering float? The maximum amount of time an activity may be delayed without delaying the entire project but causing delay to the succeeding activities. (2) Calculate the total float (TF), free float (FF), interfering float (IF) and independent float (IDF) of each activity. 4. You can calculate the free float by subtracting the Early Finish Date of the activity from the Early Start Date of the next activity. Sometimes referred to as slack, float helps project managers determine the level of flexibility they have around certain tasks. In this video, you will learn the basic fundamentals of interfering and free float of an activity on a project. F IN = F T - F F = S j. Also, determine (show calculations) the independent float and interfering float for Activity K. 29K views 10 months ago OPERATIONS RESEARCH. b ) succeeding activities. Total float and independent float. Independent float: It is the minimum excess available time which exists without affecting any of succeeding or preceding activities. D S В. We discuss three types of Floats in this video viz Total Float, Free Float and Independent Float with examples. Free float : The delay can be made without delaying succeeding activities. When leveraged properly, project managers can shift activities and resources to meet the project objectives and priorities. Simple trigonometry shows. Float sendiri terbagi menjadi beberapa bagian di antaranya adalah total float, free float, interfering float, dan independent float. It is computed for an activity by subtracting the tail event slack from its total float. 2. which. Float “slack,” is the amount of time a project can be delayed before failing to meet a deadline. After entering relevant input through GUI, critical path and. 2 weeks B. Compute the free float of activity J. We discuss three types of Floats in this video viz Total Float, Free Float and Independent Float with examples. Engineering; Civil Engineering; Civil Engineering questions and answers; FS-3 FF-2 B A Start 0 6 8 SS-1 SS-2 E Finish SFS 5 0 с D 2 Given the above network, which of the following best describes Activity E: Activity E has 1 day of total float Activity E has 1 day of interfering float Activity E has 1 day of free float Activity E is on the critical path2. Float can “make or break” the project control process, claims, and overall project success. Identify all potential critical activities on the bar chart. • Interfering float: the difference between total float and free float. following activity. Who are the experts? Experts have been vetted by Chegg as specialists in this subject. Based on the simple finish-to-start relationship, the calculation of INTF can be formulated by Equation (4), in. Independent Float. Compute the remaining total float, free float, and interfering float values for Activities G. About us. Complete the network, by adding FF/TF, identify the CP and identify which activities have an interfering float. وكمان هنعرف يعنى ايه positive & negative float يلا. An interfering person gets involved in other people's lives in an unwanted and annoying way: 2…. Compute the values of ES, EF, LS, LF, FF, and TF for the activities. F IN = F T - F F = S j . Earliest Start Time (EST) The earliest start time for an activity is the earliest time by which it can commence. I have two hours to get to school. It is the difference between total float and free float. Free float= EST(succeeding)- EFT(present) Interfering Float:- Part of total float that causes reduction in the total float of successor activity. What's included. d ) none of the above. (40 points) Activity Duration Activities Immediately Following A 22 DJ B 10 C. 6k points) selected Feb 23, 2022 by Ritikgupta . B. Free float is mainly used to. FIRST: COPY the original . Interfering Float: Maximum amount by which an activity can be delayed without delaying the project but will cause delay to the Early Start of some following activity. PlanBee shades the edges of that portion of a. Question: 4. #totalfloat #freefloat #independentfloat #float #cpm #operationsresearch. OCR MEI MwA G: Critical Path Analysis: 12 Total Float, Independent Float & Interfering Float. interfering (shared) float d. The Enterprise Project Structure (EPS) is also a hierarchical based structure that represents. Free float: The delay can be made without delaying succeeding activities. The horizontal survival float is the most energy efficient floating position, and is used when the swimmer anticipates being in open water for an extended time ; Vertical Survival Float ;Interfering float is the difference between. -2 wecks C3 weeks A. Get Paid to Write at Home. Start calculations with day zero. Highlight the critical path. ALL ABOUT CRITICAL PATH METHOD. Internal float: built-in float between the planned start and completion dates within the program (time contingency). Event slack is defined as the difference between the latest event and the earliest event times. C. Your name: Your Email: Your Comments: 23. Calculate critical path, project float, early start dates, and late start dates. Advertisements. 10 B Figure P10. Cost-time solutions focus on reducing (crashing) activities on the critical path to shorten overall duration of the project. What is the project duration? (3 points) What are the critical activities? (4 points) This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Float or slack is the amount of time that a task in a project network can be delayed without causing a delay to subsequent tasks ("free float") and project completion date ("total float"). E (Value Engineering) 6. About;. interfering float e. Ask Question Asked 3 years, 8 months ago. There is a certain amount of time the project as a whole can be delayed before missing a critical deadline. It does not affect start of succeeding activity i. Whenever an activity has zero total float, then. 9. Interfering float: the difference between the total float and free float. D. How To Tekno juga akan membagikan beberapa tipe data Float. The independent float of activity Cis 14. Section-B Answer any five questions. Exhibit 5. CTEATE EPS The Organizational Breakdown Structure (OBS) is a hierarchical based structure that represents your organization. Calculate the ES, EF, LS and LF times for all activities. To start I have this markup which looks like the left and right stair steps should both st. RELATED LINKS. i, iii b. Interfering float: It is similar to head event slack. Any delay in an activity on this path will delay whole project • Float is the measure of how much the start or completion of an activity may be Interfering Float: (F IN) The maximum amount by which an activity can be delayed without delaying the project but will cause delay to the Early Start of some following activity. Also we have learned that the total float of the activities on the critical path is always equals to ZERO, by. 02. Pick up the correct statement from the following: (A) The duration between the earliest start time of the preceding event and latest finish time of the succeeding event, is called 'float' (B) The duration of time by which an activity can be delayed without affecting the succeeding activity, is called free float (C) The difference between total. Independent float is that portion of the total float within which an activity can be delayed for start without affecting the float of the preceding activities. Highlight the critical path. Interfering float is that part of the total float which causes a reduction in the float of the successor activities. unexpected conditions, can c. interfering float = total float – free float. 6. Delaying past the INFT can impact the project's timelines. Float adalah hal yang harus diperhatikan saat membuat penjadwalan proyek konstruksi, karena kalau seorang manajer proyek kehilangan angka float, maka akan berakibat fatal yakni bertambahnya durasi. Terms and Definitions TYPES OF FLOATS Interfering Float (FIT) : Another name for head event slack (Sj), it is the difference between total float and free float FIT= FT–FF = TLj –TEj = Sj Note : if the total float (FT) for any activity is zero then such activity is called critical activity Critical Activity : an activity is said to be. Download Solution PDF. Most floaters are small and don't bother vision much. The Interfering float is the time available to delay an activity without delaying the project's estimated completion time, but delaying an activity into interfering float will delay the start of one or more following. Note: In case a negative value is obtained, it is taken as zero. F. Independent Float: It is the minimum excess available time which exists without affecting any of succeeding or preceding activities. The float the is "shared" with other activities is known as what? Interfering float. 10. In the context of activity-on-arrow (AOA) network representation, textbooks on project management, based on our survey, have for decades been using a popular formula to calculate free floats that may lead to erroneous results in the presence. It only affects concerned activity. Where, F T is Total Float, F F is Free floatIn construction project, float or slack is the amount of time that a task in a project network can be delayed without causing a delay to: 1. Who are the experts?Also compute the free float (FE1, interfering float f IFE and independent float (IF I for each actin it) in a tabular form fix the AOA and a separate table for AON. 2. Show transcribed image text. Operating System Structure Float / Slack Total Float : The total time that a schedule activity may be delayed Total Float = ( LFT – EFT ) or ( LST-EST) Free Float : Free Float is the time by which the completion of an activity can be delayed beyond the EFT without affecting the EST of succeeding activity Free Float = EST (succeeding) – EFT. 3. We would like to show you a description here but the site won’t allow us. 1 Develop the precedence diagram network for the following project and then calculate the total float, free Hoat, and interfering flout for each activity. Interfering float n = late finish n – Smallest early start of succeeding activity This video includes explanation and calculation of interfering float. md k answered on October 15, 2022. e. Interfering Float: It is that part of the total float which causes a reduction in the floats of the succeeding activities. Study ResourcesActivity Floats Professor Odeh introduces the types of floats in a construction project including; total float, free float, interfering float and independent float. Float is the amount of time by which an activity can be delayed or extended. Below is a screenshot of a typical programme layout showing Total float and free float. It does not affect latest completion of preceding activity. This is why it is the most contested item in disputes and delay analysis. I would like to decorate and shape the left and right borders of my text using float and clear properties. Understanding Work Dates and Calendar Dates In this module, the difference between working dates and calendar dates is explained and how to chart both in a project plan. Show the potential critical activities on the bar chart and critical paths for the AOA and AON networks. If activity 1 has a duration of 6 days and is. Identify all potential critical activities on the bar chart. following activity. 2. 2. Interfering float is the time available to delay an activity without delaying the project’s estimated completion time, but delaying an activity into. words,Given the following snapshot AON answer the following questions: Total Float for Activity K = Free Float for Activity S = Total Float for Activity Q = Free Float for Activity Q = Interfering Float for Activity Q =2. The project critical path(s): A. 2 Make a clear and. 5 Define Free Float, Independent float, Interfering float as used in PERT chart. Step 1: Late finish of last activity on the critical path is same as its early finish. Show transcribed image text. Interfering float – The difference between total float and free float. 4b. (3) Highlight the CPM on the AON networks.