Part $-$ A: $(4$ Questions, $1$ mark each$)$

A$\mathrm{.}1$: What does the following relationship mean?

a$.$ Activity B has to start immediately after the start of A$.$

b$.$ Activity B can start at least $3$ days after the start of $A.$

c$.$ Activity B can start at most $3$ days after the start of A$.$

A$\mathrm{.}2$: What does the following relationship mean:

a$.$ Activity $B$ has to finish exactly $3$ days after the finish of $A.$

b$.$ Activity B can finish at least $2$ days after the finish of $A.$

c$.$ Activity B can finish at most $3$ days after the finish of A$.$

A$\mathrm{.}3$: What does the following relationship mean:

a$.$ Activity B can start after the start of A and but has to finish at least $2$ days before the finish of $A.$

b$.$ Activity $B$ can start before the start of A but has to finish at most $3$ days after the finish of $A.$

c$.$ Activity B can start after the start of A and but has to finish at least $2$ days after the finish of A$.$

A$\mathrm{.}4$: What does the following relationship mean:

a$.$ Activity A can start $2$ days before the start of activity B$.$

b$.$ Activity B can start $2$ days after the completion of activity A$.$

c$.$ Activity B can start $2$ days before the completion of activity A$.$

A$\mathrm{.}5$: If $A,B,$ and $C$ are three activities connected with $SS$ and $FF($combination$)$ relationships with no lags. Their durations are $5,10,$ and $3$ ; respectively. What is the duration of the project:

a$.5$ days.

b$.10$ days.

c$.3$ days.

d$.18$ days.

A$\mathrm{.}6$: If $A,B,$ and $C$ are three activities connected with $SS$ and $FF($combination$)$ relationships with $2-$day lag on the SS relationships only. Their durations are $5,10,$ and $3$; respectively. What is the duration of the project:

a$.10$ days.

b$.12$ days.

c$.14$ days.

d$.22$ days.