1-60.
To determine the true azimuth
of a line, you must know which
of the following data?
1.
Longitude of the point from
which the observation is made
2.
Latitude of the point from
which the observation is made
3.
The polar distance
4.
The meridian angle
1-61.
An object is observed in the
direction of the equator from the
zenith of the observer’s position.
What is the latitude of the
observer’s position if the object’s
declination is S15°10’ and the
corrected meridian altitude is
62°07’?
1.
17°32´
2.
28°42´
3.
36°22´
4.
43°03´
1-62.
You are determining latitude by the
altitude of the sun at noon. If
the exact meridian is unknown, the
vertical angle of the position of
the sun is recorded when the sun
1.
has crossed the line of sight
2.
begins to cross the line
of sight
3.
is on a known meridian
4.
reaches its zenith
1-63.
If the transit used in determining
latitude by altitude of the sun at
noon is not equipped with solar
attachment, what action should
you take?
1.
Use No.10 welder’s glasses
for sighting
2.
Set the vertical cross hair
tangent to the left edge of
the sun’s disk
3.
Set the horizontal cross hair
tangent to the lower edge of
the sun’s disk
4.
Set the horizontal cross hair
tangent to the upper edge of
the sun’s disk
1-64.
What two methods are commonly used
to determine an azimuth by sun
observation?
1.
Altitude and latitude
2.
Altitude and longitude
3.
Hour angle and longitude
4.
Hour angle and altitude
1-65.
1-66.
1-67.
1-68.
1-69.
1-70.
Which of the following methods
for determining an azimuth by sun
observation is the fastest and most
accurate?
1.
Hour angle
2.
Altitude
3.
Latitude
4.
Longitude
In what direction is the azimuth
of the sun measured?
1.
Clockwise from the meridian
2.
Clockwise from the north
3.
Counterclockwise from the
meridian
4.
Counterclockwise from the north
When you obtain the correct time
from radio station WWV, what is the
maximum correction you will make by
counting the double ticks after the
minute tone?
1.
1.0 second
2.
0.9 second
3.
0.7 second
4.
0.1 second
For a morning observation in the
Western Hemisphere and an afternoon
observation in the Eastern
Hemisphere, Greenwich and local
dates are NOT the same.
1.
True
2.
False
When you obtain a negative decli-
nation for the sun, what does this
indicate?
1.
An error in your calculations
2.
The sun is east of the 0°
meridian
3.
The sun is north of the equator
4.
The sun is south of the equator
What alternate method can be used
to observe the sun with a telescope
that does not have a special
eyepiece or a lens filter?
1.
Project the image onto a black
piece of paper 1 foot behind
the eyepiece
2.
Project the image onto a black
piece of paper 6 inches behind
the eyepiece
3.
Project the image onto a white
piece of paper 1 foot behind
the eyepiece
4.
Project the image onto a white
piece of paper 6 inches behind
the eyepiece
6
