Failed 313D by 3 points — what should I change?

Passed 313D 6 months ago. Happy to share what I remember.

On the "313D exam" stuff specifically — I found the practice tests here were actually harder than the real exam on those questions. Which was great because going in I felt more prepared than I needed to be.

The time pressure is real though. I came in with maybe 8 minutes to spare and that was after skipping the ones I wasn't sure about and coming back.

Don't try to cram the night before. Seriously. Last-minute stress makes you second-guess things you actually know.

Man, three points is brutal. I'm still grinding toward my 313D and that split you mentioned is exactly what worries me — I can recite the refrigeration cycle and pressure-temp relationships all day, but the second they give me a scenario with actual readings I start second-guessing myself. Knowing the theory and applying it under a timer are two totally different animals.

Can I ask what specifically tanked you on the application side? Like was it the superheat/subcooling diagnosis questions where they hand you a set of gauge readings and you have to figure out if it's undercharged or there's a metering device issue? Or more the load calc and equipment sizing stuff? I keep hearing the troubleshooting scenarios are where people bleed points, but nobody ever says which type. Trying to figure out where to throw the bulk of my remaining study time.

Also curious — did the wording trip you up at all, or was it genuinely the calculations? Sometimes I get a question right in my head and then realize the answer they want hinges on one TSSA/B52 detail I glossed over.