LEM, if you are confronted with an abnormal flight situation that requires reference to the QRH, the particular drill necessary is clearly spelt out in the correct chronological sequence. Some abnormals are memory items that are carried out from memory as soon as that chcklist is called for. The conduct of the emergency/abnormal drills is part of your type training which is practiced every six months in the simulator and the QRH is your tool. The Flight Manual expands on the reasons and finer points of the required actions and we study both. I am still amazed at the questions you pose on this forum and wonder what kind of training you have undergone to get your command? Just tell us what type you are operating, it will be easier to supply the answers.