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Mohit_C
26th Nov 2008, 19:07
Hi all,

I was doing some questions of the Volare question bank and have a few doubts:

Q106) What is the deviation per dot on the HSI when using an
2-dot RNAV system in the approach mode?
A) 10°
B) 0.5 NM
C) 10 NM
D) 0.5° (according to the mark scheme)

For this question according to my book, for RNAV/APR the total deviation of the CDI from the centre is 1.25 NM. I don't get where the 0.5º comes from.

Q279) What is the deviation per dot on the HSI when using a 2-
dot basic RNAV system in the en-route mode?
A) 2 NM
B) 10 NM
C) 5 NM (according to the mark scheme)
D) 1 NM

I need a clarification for this question. When it says "2-dot" does it means a total of 2 dots on the whole HSI or 2 dots on each side of the centre. If in the first case, then I understand, but if in the second case, then I would think of it being 2.5 NM.

Q129) The outer marker of an ILS with a 3° glide slope is
located 4.6 NM from the threshold. Assuming a glide
slope height of 50 FT above the threshold, the
approximate height of an aircraft passing the outer
marker is:
A) 1300 FT
B) 1450 FT (according to the mark scheme)
C) 1400 FT
D) 1350 FT

I would appreciate if someone calculates this and tells me whether or not they get 1514 ft as the answer because I keep on getting that, and eventhough the closest is 1450 ft, why this 50 ft difference?

Thanks.

KeithTo
26th Nov 2008, 19:19
Q129...

3/60 x 4.6 x 6080 = 1398, plus 50= 1450.


regards

Alex Whittingham
26th Nov 2008, 20:11
...and the first two questions were deleted from the CQB years ago because they refer to a particular RNAV installation (no idea which) and have no generally correct answer.

GIZZAJOB
26th Nov 2008, 20:12
I think Im right in saying (Alex will correct me if I am wrong ) but isnt the Volare about 3-4 years out of date anyway

Mohit_C
27th Nov 2008, 09:23
Thanks for the replies.

I am aware that the Volare question bank is out of date, but as I can't find any, possibly free, question bank where I can do it on paper I guess that's my only alternative.