Types of check valves. A ball check valve is a check valve in which the closing member, the movable part to block the flow, is a spherical ball. In some ball check valves, the ball is spring-loaded to help keep it shut.
(October 2016) Learning is the act of acquiring new, or modifying and reinforcing existing, knowledge, behaviors, skills, values, or preferences which may lead to a potential change in synthesizing information, depth of the knowledge, attitude or behavior relative to the type and range of experience.
Incidental learning is also referred to as random learning, the latter term is used by UNESCO: âRandom learning refers to unintentional learning occurring at any time and in any place, in everyday lifeâ (UNESCO, 2005, p. 4). Incidental (random) learning is characterized as unorganized, unstructured and unintentional.