The two holes you see in the water pump casting are called weep holes. The upper weep hole acts as an air vent. It allows air to evacuate the casting system and prevents the build up of humidity around the bearing. Also the vent allows atmospheric pressure into the pump and the seal remains seated. The lower weep hole exists to allow fluid to collect or drain out of the water pump to protect the bearing integrity. In a horizontal centrifugal pump there is little space between the bearing and the seal so fluid build-up could potentially threaten the bearing.
A locus of control orientation is a belief about whether the outcomes of our actions are contingent on what we do (internal control orientation) or on events outside our personal control (external control orientation), explained psychologist Philip Zimbardo in his 1985 book Psychology and Life.
Internal Controls. You may have heard the term internal control(s), but what exactly is it? Evaluating internal controls is one of internal auditing's primary responsibilities. The Institute of Internal Auditors (IIA) defines control, the control environment, and control processes as follows: A control is any action taken by management, the board, and other parties to manage risk and increase the likelihood that established objectives and goals will be achieved.