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.
5 General Objectives of Internal Control. An internal control system comprises the whole network of systems established in an organisation to provide reasonable assurance that organisational objectives will be achieved. Specifically, the general objectives of internal control are as follows: