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ASSIGNMENT QUESTIONS - 14071_547
ASSIGNMENT QUESTIONS - 14071_549

Engineering Aid 2 - Intermediate Structural engineering guide book
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6-61. You have a planimeter but do not know  the  constant  for  the instrument. How may you determine an area with this instrument? 1. By measuring the drum 2. By measuring a known area of the same scale and establishing  a  ratio 3. By measuring the area you want to know and calculate using the drawing scale 6-62. Once  you  have  determined  the segmental  areas,  what  do  you  do with this information to find the area  of  the  whole  parcel? 1. Always subtract the areas from the area of the parcel 2. Always add the areas to the area of the parcel 3. Determine  if  the  segmental areas  are  inside  or  outside the  parcel  straight-line  and chord  boundaries,  then  add  or subtract  as  required Learning  Objective:  Recognize correct  procedures  for  plotting angles  by  the  protractor-and-scale method,  tangents,  and  coordinates. A. Protractor B. Tangent C. Coordinates Figure 6G IN  ANSWERING  QUESTIONS  6-63  THROUGH  6-66, SELECT FROM FIGURE 6G THE METHOD OF PLOTTING TRAVERSES THAT IS BEST DEFINED BY  THE  QUESTIONS.  SOME  RESPONSES  MAY  BE USED MORE THAN ONCE. 6-63. This method uses a NS meridian to lay out each angle. 1.  A 2.  B 3.  C 6-64. This method uses linear distances from  reference  lines,  locates points, and then connects them with lines. 1.  A 2.  B 3.  C 6-65. This method uses deflection angles and  a  reference  meridian. 1.  A 2.  B 3.  C 6-66. This  method  uses  a  single  meridian to lay out each bearing line. Then you  use  parallel  lines  to  transfer these directions to the plot. 1.  A 2.  B 3.  C Learning  Objective:  Identify surveying  computation  mistakes, their  causes,  and  methods  to correct them. Also, identify ways to prevent future mistakes. 6-67. A bearing that has the correct angular  value,  but  the  wrong compass  direction  is  usually  caused by  which  of  the  following  surveying mistakes? 1. Viewing the direction of a traverse  line  from  the  wrong station 2. Dropping  a  traverse  line 3. Taking a reading from a wrong column of a traverse table 4. Omitting the plus or minus sign of a written value 42







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