The internal mechanisms of locks are generally made of brass or die-cast zinc. The cam, which is the tongue that protrudes from the lock to secure it, is usually made of steel or stainless steel. The outer casing of a lock may be made of brass, chrome, steel, nickel or any other durable metal or alloy.
From Wikipedia, the free encyclopedia. Cognitive tests are assessments of the cognitive capabilities of humans and other animals. Tests administered to humans include various forms of IQ tests; those administered to animals include the mirror test (a test of visual self-awareness) and the T maze test (which tests learning ability).
CLEP Test Study Guide with Practice Questions. A CLEP test is an exam that tests a person for college level knowledge of a particular subject, and if a person passes the exam, they will be given college credit as if they had actually taken the courses. For example, imagine a young lady who fell in love with English Literature in high school.