Engine : Steam Plants - 300/811
|
|---|
| « Previous Question |
| A sequential lift, nozzle valve control bar on a turbo generator, utilizes which of the following operating principles? |
| A) A servomotor, mechanically connected to nozzle valve hand wheels, opens or closes the valves in accordance with the type of electrical signal received. |
| B) A lifting beam mechanism engages nozzle valve stems of varying lengths. |
| C) A hydraulic piston raises or lowers individual valves according to pressure received from a governor. |
| D) A hydraulic piston raises or lowers groups of valves according to pressure received from a governor. |
loading answer...
| Comments |
|---|
| MaryannWilliams - 2025-06-19 06:01:19 Registered (1) |
| In X Trench Run, you will control a spaceship flying through a tunnel full of obstacles. Your mission is to dodge walls, destroy defense towers by shooting lasers and defeat the final boss to get a high score. |