What the paper isFifty questions, two marks each
Air Regulations is set as 50 questions at 2 marks each in 2 hours — roughly 144 seconds a question. There are no numericals to slow you down, so the clock is rarely the problem; the problem is that a rule half-remembered scores exactly the same as a rule not known at all, and each one is worth two marks.
How the paper is builtEvery Annex, every CAR, in one draw
The paper is drawn at random from all 993 questions across 23 chapters — the Aircraft Act and Rules, the DGCA CARs, ICAO Annexes 1 to 19, rules of the air, licensing, flight duty time limitations, airworthiness, aerodromes and search and rescue. You cannot revise for it by guessing which Annex will come up, and a mock drawn this way will not let you.
Where marks go missingNumbers, not concepts
Almost nothing lost in this paper is conceptual. It is validity periods, minimum ages, currency requirements, duty limits, altitudes, distances and the specific Annex a rule lives in — facts that are either exact or wrong.
Because every question carries its chapter, a submitted paper tells you which set of numbers is missing rather than that "regulations is weak", and the mistakes bank collects them so they can be drilled directly.
What to do with the resultA mark, then the chapters behind it
The paper is marked out of 100 against the 70 pass and broken down by chapter. Wrong answers go to the mistakes bank; the result moves the readiness engine, which estimates your mark on a fresh paper with a confidence interval rather than reporting one lucky sitting as a prediction.