This set of Industrial Management Multiple Choice Questions & Answers (MCQs) focuses on “Network Analysis – Set 2”.
1. Find the incorrect statement.
a) Event and node are synonyms
b) An event is represented by a circle
c) An activity is shown by a square
d) A dummy activity is critical when its earliest start time (EST) and latest finish time (LFT) are the same
View Answer
Explanation: An event is represented by a circle and a node is a synonym for an event. An activity starts and ends with an event and is represented by an arrow. A dummy activity may be critical or non-critical. A dummy activity is critical when its earliest start time (EST) and latest finish time (LFT) are the same.
2. Which of the following is used to represent an event?
a) 
b) 
c) 
d) 
View Answer
Explanation: “
” (an arrow with solid line) is used to represent an event. An arrow with a dotted line is used to represent a dummy activity. A circle is used to represent an event. 
is used to represent the critical activity.3. How an activity is represented?
a)
b)
c)
d)
View Answer
Explanation: “
” (an arrow with solid line) is used to represent an event. An arrow with a dotted line is used to represent a dummy activity. A circle is used to represent an event. is used to represent the critical activity.4. Which of the following can be an example of an event?
a) Start the motor
b) Install machinery
c) Refund money
d) Arrange foreign exchange
View Answer
Explanation: Start the motor is an example of an event as it describes the start of an activity. It won’t consume time. Arrange foreign exchange, refund money and install machinery are activities as they can be divided into many sub-tasks and consumes time.
5. Among the following, pick the option that can be an example of an activity.
a) Start the motor
b) Loan approved
c) Refund successful
d) Arrange foreign exchange
View Answer
Explanation: Start the motor, loan approved, refund successful are examples of events as they describe either the start of an activity or the end of an activity. These even won’t consume time. Arrange foreign exchange is an activity as it can be divided into many sub-tasks and consumes time.
6. Identify a dummy activity in the below-shown network diagram.
a) Activity 1
b) Activity 6
c) Activity 8
d) Activity 2
View Answer
Explanation: Since activity 6 is represented by an arrow with a dotted line, it is a dummy activity. A dummy activity may be critical or non-critical. In the given network diagram, the dummy activity is non-critical.
7. Each activity in the following given network diagram is represented by a specific number. Pick the option that matches the alphabet “B”.
a) An event
b) An activity
c) A dummy activity
d) A critical activity
View Answer
Explanation: Alphabet “B” is represented inside a circle. An event is represented by a circle in the network diagram. Hence, it is an event.
8. In the following network diagram, each event is represented by a unique alphabet. Pick the option that matches the number 4.
a) An event
b) An activity
c) A dummy activity
d) A critical activity
View Answer
Explanation: Since activity 4 is represented by an arrow with a solid line, it is an activity. A critical activity is represented by an arrow with a double solid line and a dummy activity by an arrow with a dotted line.
9. In the given network diagram, an activity and an event are represented by a specific number and alphabet respectively. Pick the option that matches the activity2.
a) An event
b) An activity
c) A dummy activity
d) A critical activity
View Answer
Explanation: Since activity 2 is represented by an arrow with a double solid line, it is a critical activity. A delay in the critical activity will delay the entire project duration.
Sanfoundry Global Education & Learning Series – Industrial Management.
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