Questions 1-5 (Total=25 marks) \begin{tabular}{|l|l|} \hline Question 1: What is the weight density of liquid? & 5 \\ \hline Question 2: What is the turbulent flow in fluid mechanics? & 5 \\ \hline Question 3: When does an overturning couple happen in a floating body? & 5 \\ \hline Question 4: How does the flow velocity change across a pipe diameter? & 5 \\ \hline Question5:Inafloatingbodywhentheequilibriumisstable,whatisthepositionofthecentreofgravityGofthebodyrelativetothemetacentreM? & 5 \\ \hline \end{tabular}