$($iv$)$ The figure below shows an incorrect logic diagram. It has unnecessary restrains and gaps

in the logic. Retra and renumber the figure so as to correct the errors.

$($v$)$ For the following network, make a table:

$($vi$)$ Why is the following network diagram redundant? Draw the correct one.

$($vii$)$ Consider a project involving the installation of a new machine and training the operator.

Assume that the training of the operator can begin as soon as he is hired and the machine is

installed. The training is to start immediately after installation and is not to be delayed for

inspection of the machine. The inspection is to be made after the installation is complete. Is the

following network correct? If not! Draw the correct one.

$($viii$)$ Consider the following statements:

Activity A Precedes Activity B

Activity A Precedes Activity C

Activity B Precedes Activity D

Activity C Precedes Activity E

Activity E Precedes Activity F

Activity D and Activity F precede Activity G

Draw a logical network.