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.
CHAPTER 4 â¢ INDIVIDUAL DIFFERENCES: PERSONALITY, SKILLS, AND ABILITIES 147 Locus of control also is related positively to job satisfaction and performance.Specifically, someone with a highly internal locus of control is likely to believe that he orshe can do what it takes to influence any situation.n otherwords, behavior usually is the result of both characteristics possessed by an individual (hisor her knowledge, abilities, skills, and personality) and the nature of the situation in whichthat person operates.