I'm going over some airline interviews to see if I can catch any IFR stuff that I might have missed (I think its a good way to find out some questions people ask) and I came across this. but I don't quite get it:
- Decode a METAR and TAF
- Can we depart (referencing a 10-9 airport information page)?
- How do you know?
- What if RVR is reported as 6-6-6, can we depart?
- What if it drops to 5-6-6?
- What if an RVR value isn’t reported put the others are 6 and 6, can we depart? How do you know?
- Convert Celsius to Fahrenheit
- If visibility is ½ miles and RVR is 1200 can we depart?
whats with the 6-6-6, 5-6-6 and what isa 10-9 airport info page? something out of AIM? lol
if there isa RVR reported, 121 guys need a certain RVR (or vis if no RVR present) to TO right? this doesn't apply to 91 however. we can depart 0 vis if we wanted.
I'm also a bit confused about the diff between RVV and RVR. what is the diff?
lets say the RVR is 1800 and vis 1/4. the mins for that app is higher (3600 and 3/4 lets say) as a part 91 pilot, can I still shoot that app? (afaik I can still shoot the app as a part 91 pilot, because both are not reported distances from the air. However if tower says that the visual range from the tower is 2000, I can no longer shoot that app correct?)
I feel ready for this end of course, but I get nervous near the end and I start questioning myself. especially when they do the 'are you sure' trick. hopefully everything will go fine. I'll put up some questions as I think of them and can't figure it out.
thx in advance guys!
ps: another one

what is diff between MCA and MOCA.
MCA = min crossing alt (yo must be at this alt by the time you cross that fix, but what are the obst clearance altitudes?)
MOCA = min obst clearance alt which provides 1,000 non mts, 2,000 mts clearance, plus reliable nav aid reception upto 22 miles from the navaid)
oh, 1 more.... grid MORA. what area does it cover? like a 50 mile radius? I know the MORA is 10NM from eachside of the airway. butnot sure about grid MORA. I know they turn red after 14,500 though.