ASSIGNMENT QUESTIONS - 14071_549
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ASSIGNMENT QUESTIONS - 14071_548
ASSIGNMENT QUESTIONS - 14071_550
Engineering Aid 2 - Intermediate Structural engineering guide book
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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
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