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).
What to Expect on the NREMT EMT-B Cognitive Exam. The NREMT EMT-B Cognitive test is a Computer Adapted Test or CAT. This means that the test uses computer algorithms that present you with questions based on the answers you give. The computer selects questions that challenge you progressively to solve problems and demonstrate knowledge appropriate for your EMT level and training. There is a single pass score.