6-68. You may prevent direction error by 1. placing directional arrows on the traverse diagram 2. quickly adding up the angles to ensure the traverse lines were not dropped 3. making both readings and field note entries with deliberation 4. never writing a value without including the appropriate sign 6-69. Which  of  the  follwing  errors  uses the  same  prevention  method  as direction error prevention? 1. Dropped signs 2. Dropped traverse lines 3. Wrong azimuths 4. Missing decimal points 6-70. When you have an outsized linear error of closure, what should you check first? 1. Your latitudes and departures are correct 2. A dropped traverse line 3. Your arithmetic 4. The bearings computations 6-71. In your traverse containing five interior  angles,  you  compute  a final sum of the angles of 500°. What mistake, if any, was probably made? 1. One of the angles was probably dropped, since the sum of the angles  should  be  540° 2. The angles were probably added incorrectly,  since  the  sum should be 360° 3. You will have to return to the field to find the mistake 4. None 6-72. After  you  check  computations  and ensure that no angle was dropped in the process, you still have a large error of closure. What further check, if any, should you attempt at  this  time? 1. See if an angle is exactly equal to the error of closure; if so, there is a deflection angle  error 2. Construct  a  perpendicular bisector from the line of the linear  error  of  closure  to indicate  possibly  the  erroneous measurement involved 3. Construct  a  line  parallel  to the  suspected  erroneous  line  to find the error 4. None; you must return to the field 6-73. When you have an outsized error of closure for latitudes but not departures, what should you check? 1. A mistake in an angle 2. A mistake in a distance 3. An  arithmetic  error 4. A  dropped  traverse  line 6-74. When you have an outsize linear error  of  closure  but  an  acceptable angular error of closure, you should  check  to  see  whether  you used the 1. sine of the bearing when finding the latitude of the course 2. sine of the bearing when finding  the  departure  of  the course 3. cosine  of  the  bearing  when finding the departure of the course 4. tangent of the bearing when finding  the  latitude  of  the course 43