Which one of the following statements is NOT correct related to line-of-balance schedule?
- AIt represents both a presentation format and a scheduling technique.
- BIt is a very visual method of representing a particular type of project.
- CIt allows the planning team a single sequence without any option.Correct
- DUsing a combination of sloping lines, bars and blocks, operations can be sequenced so that space and resource conflicts are quickly identified and addressed.
Solution
Concept
Line of balance is a visual scheduling method for repetitive work, like housing units, highways and high-rise floors. It gives the planner many options to sequence and balance crews.
Step-by-step solution
1. LOB is both a way of presenting a schedule and a scheduling technique, so A is correct. 2. It is very visual and is used for repetitive (linear) projects, so B is correct. 3. Sloping lines, bars and blocks help sequence work and quickly show space and resource clashes, so D is correct. 4. LOB gives the planning team many options in sequence and crew rate, not a single fixed sequence. So C is NOT correct.
Explanation
Line of balance is flexible. The planner can change crew size, rate and order of work to balance the project. So saying it allows only a single sequence with no option is wrong.
Why the other options are wrong
A: Correct. LOB is both a presentation format and a scheduling method. B: Correct. It is very visual and suited to repetitive projects. D: Correct. Lines, bars and blocks show space and resource conflicts quickly.
Shortcut
LOB means flexibility and options. Any statement saying 'single sequence, no option' is false.
Common mistake
Thinking LOB is a rigid method because it is drawn as fixed lines. In fact it allows many sequencing options.
Correct answer: C) It allows the planning team a single sequence without any option.