It allows power boats to have stability while cruising. The cathedral hull is like a trimaran in terehat it has one main and two side hulls stuck together so that has a somewhat square to rectangular shape and therefore exhibits greater stability than a single hulled boat. It became more popular with the advent of fibreglass boats in the 1960's and '70s.
Answer: Probability/impact risk matrix
Explanation: Probability/impact risk matrix is type of matrix that defines the probability as well as impact that depicts whether the risk is low ,high or moderate.
Impact matrix is sort of tool which helps in conversion of any plan into a action. Probability matrix help in defining the chances in defining the risk.The positioning of the impact value of risk is plotted on the vertical axis and performance value on the horizontal axis.
Thus probability/impact matrix is the correct tool for the problem mentioned in the question.
Answer:
The main objects of a head frame, or poppet head, are to support the winding pulley firmly and to guide the cage above the surface to the discharging stage.
