Review the choices and pick the statement that is correct?
Show answer Hide answer
Answer: E. all of the above
Explanation
Network float values define the scheduling flexibility available for non-critical project activities. A positive float permits permissible delays without extending the overall project completion date. Zero float identifies critical activities where any delay directly impacts the final project schedule. Float or slack represents the amount of time an activity can slip without delaying the project. Critical activities lie on the longest path through the project network diagram. Negative float indicates schedule compression or overlapping requirements that violate deadlines.
Project managers monitor float values to reallocate resources away from non-critical tasks. Identifying critical paths prevents project delays in complex construction and engineering schedules. Float analysis is a core component of modern critical path method project management. Stating floats may be positive, zero, or negative is true, but choice E encompasses all correct statements. Delaying a positive float activity by its total float does not delay the project completion date. A negative float activity guarantees a delay in project completion unless schedule adjustments occur.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
Related questions
Q1. Point out the incorrect statement when comparing water tube boilers to fire tube boilers ______________________?
Show answer Hide answer
Answer: E. chances of explosion are less in former case
Water tube boilers contain high-pressure water inside small tubes, making catastrophic explosions more dangerous or likely compared to shell-type fire tube boilers.
Q2. Gasoline is distilled commercially within which temperature range__________________?
Show answer Hide answer
Answer: B. 65 – 220°C
Commercial gasoline is a petroleum fraction that distills within the approximate boiling temperature range of 65°C to 220°C. Fractional distillation separates crude oil components based on their varying boiling point ran...
Q3. What constitutes a fundamental requirement for any effective wage incentive plan_________________?
Show answer Hide answer
Answer: E. all standards should be based on time studies
A sound wage incentive plan must be anchored in objective and reliable work standards. Systematic time and motion studies provide the empirical basis required to set these standards. Without time studies, incentive rates...
Q4. Preheating base metals prior to welding is mandatory when___________________?
Show answer Hide answer
Answer: A. cast iron
Cast iron contains high carbon and silicon concentrations making it prone to thermal cracking. Preheating base metals reduces thermal gradients and cooling rates during welding operations. This metallurgical precaution p...
Q5. Engine piston rings undergo electroplating with chromium, cadmium, or phosphate primarily to__________________?
Show answer Hide answer
Answer: D. reduce wear and eliminate scuffing
Electroplating piston rings with chromium or other hard coatings reduces friction and eliminates scuffing. These durable surface treatments withstand high combustion temperatures and harsh mechanical sliding contact. Har...
Q6. Identify the incorrect characteristic regarding the ideal properties of a quality fuel__________________?
Show answer Hide answer
Answer: D. high ignition point
A high ignition point is undesirable for fuels because it makes them difficult to ignite; quality fuels should have a low to moderate ignition point. Fuels must ignite easily upon exposure to an ignition source to ensure...