Discuss various method used to overcome errors associated with magnetic compass survey

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Discuss various method used to overcome errors associated with magnetic compass survey  
 Magnetic  compass  surveying this  is  a simple  land  survey  that deals  with  ,measuring  and  recoding  thee  linear  distance  of  an  object  and  taking  their  measuring  by using  prismatic  compass .this types  of  survey  entail  fixed  an object  position  in the  field  by measuring  the angle  of the  bearing  between  the  line  of  magnetic north  o  and  the  line  of  sight  of the  object ,but  the  surveyor  uses  a  compass  to determine  the  direction   of the line .the  following are the method  to be  used  in order  to overcome  error in magnetic  compass surveying 
 Hold  the  compass  steadily .this  is due  to  that  during  taking  the measurements  to action  area  first  of all  the  compass  that  is used  should  be  hold  property when n  the  bearing  are taken  for  example  of bearing  forward  bearing  and backward
  Forward  bearing  is the  bearing  taken  to an  object  in front of the  observer  along  the line  
Back  baring  is  the  bearing  taken  from  the object  to the  former  position  of the observer  degree  
 
 Every  reading  should  be checked  with back  bearing  .in magnetic  compass  surveying  one  its   make  sure that  all the  reading  should  be well  checked  in order  to avoid  the  eruption  of the  different  error  when  someone  taking  measurement  ,thought  the will  enable  to avoid   error  in  magnetic  compass  surveying
 Avoiding  wearing  mental  material  for  example  ring  spectacles  bangles  and  watches  because  this mental  in magnetic  compass  survey  they  can  contant  each  other   and  cause  to bring  the wrong  data  or  the  information  when  taking  measument  using   compass  surveying  so they  be  far away  from  compass  survey
  Avoiding  the  area  with   the mental  element  also  in are  with  the  source   mental  like  iron  magnetic  compass  survey  should  not be  used  in such  area  due  to that  thus mental  like  iron  mental  using  magnetic  compass  survey  because  it  inform  of the  mental  hence  when  used  in such  area  will  react  with  each  other  and  bring the  wrong  data  of  when  taking  the  measurement  in different  area 
 Reading  should  be taken  accurately .in  order  to overcome  the error  in magnetic  compass  surveying  here thee  booker  has  to  make sure  that all  reading  should  be taken  accurately  even  by  telling  him  to read  correctly  all  that  figures  verbally  also  the  booker  muster be  seriously  when  reading  the  number  in order  to overcome  the  error  in  the magnetic   compasses surveying 
  Professional  of  a person  here  the  one  taking  data  he/she  must  be  prosseffosina  of the  work  in order  to get  the  correctly   data  the booker  should  be aware   with  the   magnetic  compass  survey  because   not  every  person  can  take  the  date  so an  person  should  be aware  with  a compass  surveying 
 Generally  the magnetic  compass  survey  it  a quick  method  that  this   method  its  very  faster  that  other   method    of surveying  like  oblate  table  survey  because in magnetic   compass   survey  no time  consuming ,also  in this  this method   their  if fee  occurrence  of  obstacles  compared  to  the other  types  of survey  like  chain  and levelling  survey  

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