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 are the methods and procedures designed by management to safeguard assets and to manage resources. Itâs the system of checks and balances. A system of internal control serves to minimize errors in the accounting records and to deter fraud, embezzlement and theft by employees, customers and vendors.our Role in Internal Controls. 1  Establish the âtone at the topâ and promote an ethical business environment by providing structure, feedback, and discipline. 2  Assess risks specific to your operations and develop a control system to address risks that could prevent achieving established goals.