Test 19 - Resource Scheduling, Smoothing and Leveling

Question 1 ప్రశ్న 1

During planning of a sewage-treatment plant, the engineer assigns labour crews and equipment to individual activities, calculates their combined demand over time, and subsequently adjusts activity dates to reduce demand fluctuations. Which statement correctly distinguishes these resource-management processes?

A Resource allocation means calculating only project cost, while aggregation means shortening every critical activity. B Resource allocation assigns resources to activities; aggregation determines combined time-phased demand; smoothing adjusts resource usage within schedule constraints. C Resource aggregation automatically guarantees that resource demand never exceeds availability. D Resource smoothing necessarily requires extending project completion beyond the original finish date.

Question 2 ప్రశ్న 2

A resource-loaded construction schedule uses continuous elapsed days and constant labour assignments. Activity A needs 4 workers during time 0 to 3, B needs 3 workers during time 1 to 4, and C needs 2 workers during time 3 to 5. Each activity occupies its start time but not its finish time. What is the MAXIMUM simultaneous labour demand?

A 5 workers. B 9 workers. C 7 workers. D 4 workers.

Question 3 ప్రశ్న 3

A resource histogram for a foundation project shows constant manpower demand of 3 workers during Days 1–2, 6 workers during Days 3–5, and 4 workers during Days 6–7. Each worker works one complete shift per assigned day. What are the TOTAL labour requirement and PEAK daily manpower demand?

A 21 worker-days and 6 workers. B 32 worker-days and 13 workers. C 26 worker-days and 4 workers. D 32 worker-days and 6 workers.

Question 4 ప్రశ్న 4

A masonry work package requires an estimated 96 worker-days of effort. The approved execution period is 8 working days, and workers are assumed to contribute equally with no congestion or productivity losses. What average number of workers must be allocated to meet the duration?

A 12 workers. B 8 workers. C 16 workers. D 24 workers.

Question 5 ప్రశ్న 5

Two independent concreting activities each require exclusive use of the project's ONLY concrete pump for 3 continuous days. Both are ready to start at project time zero, and neither can be interrupted once started. No additional pump is permitted. What is the minimum time required to complete BOTH activities?

A 3 days, because the activities have no technical precedence relationship. B 6 days, because the pump must serve the activities sequentially. C 9 days, because each activity requires an additional three-day waiting period. D 4.5 days, because the pump can be shared equally during every shift.

Question 6 ప్రశ్న 6

A critical activity K needs 5 carpenters from project time 2 to 5. A noncritical activity X needs 3 carpenters for the same three-day period and has 3 days of total float, allowing its start to move from time 2 to time 5 without affecting the project finish at time 8. Only 5 carpenters are available, and no other activity needs them between times 5 and 8. Which action is appropriate?

A Keep both activities at time 2 and assume that eight carpenters are available. B Delay K beyond its critical timing while leaving X unchanged. C Move X to time 5–8, removing the manpower conflict without extending the project. D Convert X into a zero-duration milestone to remove its resource demand.

Question 7 ప్రశ్న 7

An AON activity has ES = 2, EF = 5, LS = 6 and LF = 9 days. Its immediate successor has ES = 6 days under a zero-lag finish-to-start relationship. The activity is postponed by 3 days from its original earliest start, with no change in duration or other network assumptions. Which statement is correct?

A The successor's earliest start moves 2 days later, but the project's calculated finish need not change because the activity's total float is 4 days. B The project finish must be delayed by 3 days because any postponed activity is critical. C The successor retains its earliest start of day 6 because the activity has 4 days of total float. D The activity has 4 days of free float, so no successor dates can change.

Question 8 ప్రశ్న 8

Two independent critical activities each require 4 workers for 4 complete days, and both must finish by project time 4 to preserve the unrestricted CPM completion date. Only 6 workers are available, their assigned crews cannot be reduced, and neither activity can be interrupted. What is the correct assessment?

A Resource smoothing can preserve the four-day completion by using three days of float on either activity. B Both activities can execute simultaneously because six workers are more than the requirement of either individual activity. C A zero-duration dummy activity can remove the shortage without affecting the construction method. D The four-day finish cannot be achieved with the stated workforce; resource leveling requires sequential execution and an eight-day finish unless resources or methods change.

Question 9 ప్రశ్న 9

A pump-house project has two independent initial activities A = 3 days and B = 5 days, both requiring exclusive use of a single mobile crane throughout. Activity E = 2 days begins only after BOTH A and B finish and does not require the crane. Activities cannot be interrupted, and there are no other constraints. What are the unrestricted CPM duration and the MINIMUM resource-leveled duration?

A 7 days and 10 days respectively. B 8 days and 10 days respectively. C 7 days and 8 days respectively. D 10 days and 10 days respectively.

Question 10 ప్రశ్న 10

Two activities compete for one specialist crane at the same time. Activity A is on the sole critical path, whereas Activity B has sufficient total float to be postponed until A releases the crane without affecting project completion. Which initial allocation strategy is most defensible?

A Give the crane to B merely because B has positive float. B Assign the crane simultaneously to A and B because their network branches are independent. C Preserve A's critical execution and reposition B within its available float, after checking all related constraints. D Delete B from the project because its resource requirement conflicts with A.

Question 11 ప్రశ్న 11

A four-day construction programme has three activities using the same type of labour: A needs 4 workers during time 0–2, B needs 4 workers during time 0–2, and C needs 2 workers during time 2–4. B can be shifted intact to time 2–4 without delaying the project or violating dependencies. Each time interval includes its start but excludes its finish. What happens to the PEAK demand and TOTAL worker-days after shifting B?

A Peak falls from 8 to 4 workers, and total labour effort falls from 20 to 12 worker-days. B Peak falls from 8 to 6 workers, while total effort remains 20 worker-days. C Peak remains 8 workers, and total effort increases to 24 worker-days. D Peak rises from 8 to 10 workers, while total effort remains unchanged.

Question 12 ప్రశ్న 12

A network has two required start-to-finish branches: critical activity A lasts 10 days on one branch, while activities B = 4 days and C = 3 days execute sequentially on the other. Both branches begin at time zero, and project completion requires both to finish. A planner inserts a separate 2-day idle delay before B and another 2-day idle delay BETWEEN B and C. What is the revised project duration?

A 10 days, because B and C each originally had three days of total float. B 12 days, because the two idle periods cancel one another. C 14 days, because all available float must be added to the critical path. D 11 days, because the four days of inserted idle time exceed the shorter branch's three-day allowance by one day.

Question 13 ప్రశ్న 13

A construction schedule is resource-leveled because several activities require the same limited lifting equipment. The new feasible execution order differs from the original unrestricted CPM order. Which statement about critical-path analysis is most appropriate?

A Resource constraints may create a resource-driven controlling sequence, so the resulting schedule and criticality should be reassessed. B The original critical path must remain the only controlling sequence regardless of resource availability. C Resource leveling always increases total float on every activity. D The resource-driven schedule can be validated without considering any activity precedence relationships.

Question 14 ప్రశ్న 14

Two independent foundation pours each require exclusive use of a concrete pump for 4 days. With the existing single pump, the project takes 8 days. Hiring one additional pump for a fixed ₹5 lakh permits both pours to run in parallel and complete the project in 4 days. Time-related project overhead is ₹3 lakh per day, and all other costs are unchanged. What is the NET total-cost saving from hiring the additional pump?

A ₹5 lakh. B ₹12 lakh. C ₹7 lakh. D ₹17 lakh.

Question 15 ప్రశ్న 15

A pipe-laying team consumes 25 pipes per working day over a planned 10-day continuous operation. The project initially has 180 suitable pipes in stock, and no losses are expected. A single additional delivery can be arranged before work begins on Working Day 8. What MINIMUM delivery quantity is required to prevent a material shortage and complete the operation?

A 25 pipes. B 50 pipes. C 100 pipes. D 70 pipes.

Question 16 ప్రశ్న 16

A six-day project has a fixed baseline labour demand of 3 workers during time 0–2, 5 workers during time 2–4, and 1 worker during time 4–6. A separate noncritical activity X needs exactly 3 workers for 2 consecutive days and may start at time 0, 2 or 4 without changing the project finish. There are no other dependencies or resource constraints. Which start time for X MINIMIZES the peak manpower demand?

A Start at time 0; peak demand becomes 6 workers. B Start at time 4; peak demand becomes 5 workers. C Start at time 2; peak demand becomes 8 workers. D All three start times give identical peak manpower demand.

Question 17 ప్రశ్న 17

Two independent construction activities A and B require fixed resources throughout their durations. A needs 4 workers and one crane for 2 days; B needs 3 workers and one crane for 3 days. Available resources are 6 workers and ONLY one suitable crane. Activities cannot be interrupted, and no additional resources are allowed. What is the minimum total duration for both activities?

A 5 days. B 3 days. C 2 days. D 6 days.

Question 18 ప్రశ్న 18

A project has independent activities A = 3 days and B = 4 days, both requiring the project's only crane throughout. Activity C = 4 days follows A but does NOT require the crane. Project completion requires both B and C to finish. All activities are non-preemptive, and no other resources constrain execution. Which crane-allocation order gives the EARLIEST project completion?

A Execute B first, producing project completion at time 7. B Execute B first, producing project completion at time 8. C Both orders produce the same completion at time 11. D Execute A first, permitting C and B to overlap and producing completion at time 7.

Question 19 ప్రశ్న 19

A resource-loaded schedule has A requiring 2 electricians during time 0–4, B requiring 4 electricians during time 1–3, and C requiring 3 electricians during time 2–5. All requirements are constant and intervals exclude their finish times. Only 7 electricians are available. What are the PEAK demand and MAXIMUM shortage in the unrestricted schedule?

A Peak 7 electricians; no shortage. B Peak 9 electricians; shortage 2 electricians. C Peak 9 electricians; shortage 3 electricians. D Peak 6 electricians; shortage 1 electrician.

Question 20 ప్రశ్న 20

A noncritical activity has 5 days of TOTAL FLOAT but only 2 days of FREE FLOAT. A proposed resource-smoothing adjustment postpones the activity by 4 days from its earliest scheduled position, without changing its duration. Assuming standard zero-lag precedence and no other changes, which statement is correct?

A The activity can be postponed without affecting any successor because total float and free float are identical. B The four-day postponement must extend project completion by at least two days. C The postponement may shift successor early dates because it exceeds free float, but it can remain within the activity's total float and preserve the project finish. D The activity becomes a zero-duration milestone after using four days of float.

Question 21 ప్రశ్న 21

A crawler excavator is available for 10 complete working days within a reporting period. Approved resource records show that it was productively assigned for 6 complete days and was idle for the other 4 days. Using productive assigned days divided by available days, what is its RESOURCE UTILIZATION during the period?

A 60%. B 40%. C 66.67%. D 75%.

Question 22 ప్రశ్న 22

A pipeline activity contains 480 m of work. Each fully equipped crew can install 40 m per working day, and two crews could work simultaneously without productivity losses or interference. The original plan allocates two crews, but resource leveling reduces availability to ONE crew throughout the activity. Ignoring other interruptions, what happens to the activity duration?

A It remains 6 working days because total quantity is unchanged. B It becomes 8 working days, increasing duration by 2 days. C It becomes 10 working days, increasing duration by 4 days. D It becomes 12 working days, increasing duration by 6 days.

Question 23 ప్రశ్న 23

A contractor prepares a resource plan for prefabricated concrete units. The aggregate installation requirement is 240 units, but site storage is limited and deliveries must be coordinated with different installation workfronts. Which planning approach is most appropriate?

A Convert time-phased installation demand into a delivery and storage plan, considering lead times, inventory capacity and the sequence of workfronts. B Order all 240 units for the first project day regardless of site storage capacity. C Assume resource aggregation itself guarantees that suppliers can deliver every required quantity on demand. D Ignore installation sequencing because resource planning applies only to labour and construction equipment.

Question 24 ప్రశ్న 24

Resource leveling changes the forecast finish of a municipal pipeline project from 100 days to 108 days because the contractor has fewer crews than originally planned. The contractual completion date and approved baseline have not been revised. What is the correct project-control response?

A Automatically replace the contractual completion date with day 108 because resource leveling always grants an extension of time. B Retain the approved baseline for comparison, report the resource-constrained forecast and delay risk, and evaluate mitigation or contractual remedies under the applicable conditions. C Delete the original baseline so the eight-day difference is no longer visible. D Report the leveled schedule as 100 days while concealing the resource shortage.

Question 25 ప్రశ్న 25

A project has two technically independent starting branches: A = 5 days followed by C = 7 days, and B = 4 days followed by D = 5 days. Project completion requires BOTH C and D. Activities A and B each need exclusive use of the project's ONLY excavator for their full durations; C and D need no excavator and can proceed concurrently with other work. All activities are non-preemptive, with zero-lag finish-to-start links and no other constraints. What are the UNRESTRICTED CPM duration and MINIMUM resource-leveled duration?

A 12 days and 12 days respectively. B 9 days and 16 days respectively. C 12 days and 14 days respectively. D 14 days and 16 days respectively.

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