3. What is the name of the shaft seal, designed to stop steam flow in a steam turbine; consisting of a series of ridges and intricate path? a) Mechanical Seal b) Labyrinth Seal c) Packing d) Shaft Gasket 4. What is the safety device used to shut down a steam turbine when it exceeds its rotational speed limits by closing the turbine trip valve? a) Overspeed trip b) Safety Relief Valve c) Absorber d) Economizer (f 5. This happens when the entrained water is lost from a cooling tower in the exiting air; known as windage loss? a) Forced Draft b) Induced draft c) Drift Loss d) Drift Eliminators