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.
Definition of Locus of Control. A locus of control is a person's belief about how much power one has over the events in one's life. According to psychologist Julian Rotter, who formulated the concept in the 1950s, the locus of control is a dimension of personality; it helps explain one's traits and behavior.An internal locus of control is the belief that the course of one's life is largely up to oneself.Those with an external locus of control regard the events in their lives as occurring regardless of their own efforts. locus of control is a person's belief about how much power one has over the events in one's life.