Consider the below project information for the questions 1-3.

Activity	Immediate Predecessor	Normal Duration (days)	Normal Cost ($)	Crash Duration (days)	Crash Cost ($)
A	---	12	7000	10	7200
B	A	8	5000	6	5300
C	A	15	4000	12	4600
D	B	23	5000	23	5000
E	B	5	1000	4	1050
F	C	5	3000	4	3300
G	E, C	20	6000	15	6300
H	F	13	2500	11	2580
I	D, G, H	12	3000	10	3150

17. Which of the following shows the first activity to crash and the maximum number of days we can crash in the first crash?

1. Crash I and crash by 2 days
2. Crash A and crash by 1 day
3. Crash C and crash by 3 days
4. Crash G and crash by 1 days
5. Crash G and crash by 2 days
6. None of the above

17. Which activity does not become a critical activity when the duration of the project is reduced to the minimum duration by crashing?

1. Activities F and H
2. Activity B
3. Activity E
4. Activity D
5. Activity I
6. None of the above

17. What is the minimum duration of the project if it is crashed?

1. 50 days
2. 49 days
3. 51 days
4. 48 days
5. 52 days
6. None of the above

17. Which of the following is true for the project crashing problems?

1. We can crash all of the critical activities in a project network diagram.
2. We have to start crashing by lowest-cost activities first
3. We can only crash activities with zero-slack time
4. Crashing a critical activity in the project will always makes the project have more critical activities.
5. All of them
6. None of the above

Consider the below activity table for a project for the Critical Chain project scheduling for the questions 5-10.

Activity	Immediate Predecessor	Duration (days)	Resource
A	---	2	Yellow
B	A	4	Gray
C	B	6	Orange
D	A	6	Gray
E	A	8	Blue
F	A	8	Green
G	C, D, E, F	4	Yellow

17. Which of the following shows the Critical Chain path of the project?

1. A B C G
2. A B C D G
3. A C D G
4. A B D G
5. A B D E G
6. None of the above

17. Which of the following shows the final duration of the project based on the Critical Chain?

1. 10 days
2. 14 days
3. 15 days
4. 25 days
5. 20 days
6. None of the above

17. Which of the following shows the how many buffers (feeding plus project buffers) are there in the final schedule after applying the critical chain?

1. 2
2. 3
3. 4
4. 1
5. 0
6. None of the above

17. Which of the following shows the total duration of the buffers (feeding plus project buffers) after applying the critical chain??

1. 5 days
2. 6 days
3. 7 days
4. 8 days
5. 10 days
6. None of the above

17. Which of the activities will have feeding buffers at the end of them in the final schedule after applying the critical chain?

1. Activities C, E, and F.
2. Activities A, E, and F.
3. Activities A, B, D, and G.
4. Activities B, and D.
5. Activities D, E, and F.
6. None of the above

17. Which of the following shows the latest finish time of activity D in the final schedule after applying the critical chain?

1. 10
2. 12
3. 16
4. 8
5. 9
6. None of the above