india DGCA ATPL exam
Q1. A great circle has its North vertex at 70N130E, at what longitude and in what direction would the great circle cross the equator assuming:
a. Initial direction is east from the northern vertex{ans-140W 160{T}}
b. Initial direction is west frm northern vertex{ANs-040E200{T}}
The centre of any great circle is at the centre of the Earth. This means that.
1. The vertices are at diametrically opposite latitudes. With one at 70N the other must be at 70S.
2. The vertices are at 180 degrees of longitude apart. With one at 130E the other must be at 050W.
3. The great circle crosses the Equator midway between the two vertices. With one vertex at 130E and the other at 050W the great circle crosses the equator at 040E. The second crossing point is 180 degrees of longitude away, which is at 140W.
The two vertices are at 70N and 70S, so a straight line (great circle) between the two crosses the Equator at an angle of 70 degrees (this is based on the definition of latitude).
This means that the great circle crosses the local meridians at the Equator at an angle of 20 degrees (which is 90 – 70 = 20).
This in turn means that the true tracks at the equator are 180 + 20 = 200 and 180 – 20 = 160.
If you do a simple sketch of the situation you should be able to see that the answers are as stated in your question.
Q2. Given that the compression value of the earth is 1/297 and that the semi major axis of the earth,measured at the axisof equator is 6378.4km,what is the semi major axis of the earth measured at the axis of the poles?
ans- 6356.9km
A compression of 1/297 means that the smaller axis is 296/297 of the larger axis.
So the answer is 6378.4 km x 296/297 = 6356.9 km.
Last edited by keith williams; 13th Oct 2011 at 13:54.
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Meteorology Query
At FL180, the air temperature is 35 degree C, The air density at this level is-
a.Equal to density of ISA at FL180.
b.Unable to determine without knowing the QNH
c.Greater than density of ISA at FL 180
d. Less than density of ISA at FL 180.
I'm looking for an explanation to the answer. Thanks.
At FL180, the air temperature is 35 degree C, The air density at this level is-
a.Equal to density of ISA at FL180.
b.Unable to determine without knowing the QNH
c.Greater than density of ISA at FL 180
d. Less than density of ISA at FL 180.
I'm looking for an explanation to the answer. Thanks.
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@superdunkaroos
Oxford is definitely enough for ATP exams..can't say of IC Joshi..because i referred to my CPL notes for it..
20-25 questions will be on Indian climatology..out of 50
Oxford is definitely enough for ATP exams..can't say of IC Joshi..because i referred to my CPL notes for it..
20-25 questions will be on Indian climatology..out of 50
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At FL180, the air temperature is 35 degree C, The air density at this level is-
d. Less than density of ISA at FL 180.
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I cleared ATPL Instr and Radio (written + orals) but I didn't clear Gen Nav orals. I have 3 shots at it..now does that mean i have to attempt them consecutively ? If not, how long are the ATP writtens valid till ?
Anyone here who can help me with this?
Anyone here who can help me with this?
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mike_sierra
The answer marked is (c)
I assumed the same reason as you. Not sure if the answer stated is wrong out there.!
And about the ATP papers, I haven't read it anywhere myself just a quote from friend says the attempts need not be consecutive and should be within 2 years of clearing written exams.
The answer marked is (c)
I assumed the same reason as you. Not sure if the answer stated is wrong out there.!
And about the ATP papers, I haven't read it anywhere myself just a quote from friend says the attempts need not be consecutive and should be within 2 years of clearing written exams.
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Can i still write ATP exams
Hello guys, just a quick query regarding the atpl exams.My licence got approved which is put out on the link 'Status for Licence Issue Requests' of DGCA official site where it shows my CPL License no,FRTOL,IR,Multi engine and Single engine endorsement.Can i submit a copy of this to book atpl exams ??
Thanks in Advance
Cheers
Thanks in Advance
Cheers
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sperry - I think they still require attested copies of your Indian CPL with multi-endorsement? I'm not sure by just giving out the details of your licence, you would be permitted to sit for the exam. Try collecting your licence from the DGCA within the next 10 days, get an attested copy and then submit it along with the ATPL exam application form.
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Thanks smurf84, i'l collect the Lic ..asap.
Any advise for the exams .. like which subject should i go first
also i heard from people not to sit for Delhi center becoz when it comes to Oral exams thre's no way you will pass it 
.
Thank you
Any advise for the exams .. like which subject should i go first
also i heard from people not to sit for Delhi center becoz when it comes to Oral exams thre's no way you will pass it . Thank you
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sperry - I haven't heard of anything like that before. If I haven't prepared well enough for Navigation or Radio Aids (as both of them have an oral examination), Meteorology would be the first exam on my list. Then I'll give it some time for the other two subjects. But it's your decision at the end of the day. Good luck bud !
