Question

Statement (I): Bar chart plots in the time dimension the planned performance of various activities of a project.

Statement (II): One advantage of a bar chart is that the inter se sequence and linkage of all activities is indicated therein. 

1. Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)
2. Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)
3. Statement (I) is true but Statement (II) is false
4. Statement (I) is false but Statement (II) is true

Answer 1

Correct Answer - Option 3 : Statement (I) is true but Statement (II) is false

Concept:

A bar chart or bar graph is a chart or graph that presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent.

In order to show the bar chart for activities the length of the bar represent the time required for completion of that activity.

The main advantages of bar chart are

• Bar charts are easy to read and understand
• The clear relationship between size and value allows easy comparison

The main disadvantages of bar chart are:

• It cannot show the sufficient detail to enable timely detection of schedule slippages.
• The bar chart does not show the dependency relationships among activities
• It is essentially a manual graphical presentations.
• Bar graphs tend to be locked into a particular data set, making it hard to show multiple values or changes over time unless the chart is modified.