The full form of narco in this phrase is "narcotic." A narco-analysis test is one that uses a narcotic psychoactive serum to learn the truth about something from someone who is not willing to provide it. It is, essentially, a truth serum.
The full form of narco test is Narcotic Analysis and Control Reliable Operation Test. It is a method used by law enforcement to determine the truthfulness of a subject's statements by administering drugs that impair cognitive functions and memory.
The full form of PT is Proficiency Test.
The full form of the PSA blood test is Prostate-Specific Antigen.
Design Automation and Test in Europe
The full form of CAT is the Continuos Assessment Test.
The full form of SAT is Scholastic Assessment Test. It is a standardized test widely used for college admissions in the United States.
Xavier's Aptitude Test.
management aptitude test
Common Admission Test
graduation entrance test
Power-on self-test
Common Entrance Test