General Magnetism Question - ATPL
Please help me with this one.
Q. Z is 45 and the T value is 76 units. The values of dip and force H will be: a) 36.3 61 b) 53.7 61 c) 59.5 66 d) 61.3 36 The correct answer mentioned is a). But I have trouble figuring out the values. For reference: tan dip = Z/H and T = H/cos dip Taken from Ground Studies for Pilots - Navigation page 48 example 7. Thanks... |
tan dip = Z/H
H = T cos dip therefore (tan dip x cos dip) = Z/T since tan x cos = sin, sin dip = Z/T; dip = arcsin 0.5921 = 36.3 H = 76 x cos 36.3 = 61.2 So I would say that a) is indeed the correct answer - although I have no idea what the subject is about. Just basic trigonometry and algebra - it is the wont of the JAA to ask rather pointless questions....and answer d) is a deliberate ploy to ensure you RTFQ! |
Thanks a lot. Had a brain fart for a few moments :)
|
All times are GMT. The time now is 15:58. |
Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.