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1. Kids like to play with their dogs in their back. a. yards
b. rooms
c. houses
2. If you want to relax, kick back in a large chair. a kitchen
b. lounge
cbench
3. A will help you do your homework better. a. desk b. television
c. bed
4. The place where your family sits to eat is called the a. living b. dinning room.
c. bed
5. Use a wall a. chair to see what time it is.
b. clock
c. couch
6. The is the upper part of a house mostly used for storage. a. closet b. attic
c. garage
7. You can seat several people on a a. chair b. stool
c. sofa
8. You walk through the a. floor to get into the house b. hall
c. doorway
9. A well constructed, a. wall helps keep the rain out of a house.
b. roof
c. floor
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1. The correct answer is a. yards. Kids like to play with their dogs in their backyards.2. The correct answer is b. lounge. If you want to relax, kick back in a large chair in the lounge.
3. The correct answer is a. desk. A desk will help you do your homework better.
4. The correct answer is b. dining room. The place where your family sits to eat is called the dining room.
5. The correct answer is b. clock. Use a wall clock to see what time it is.
6. The correct answer is b. attic. The attic is the upper part of a house mostly used for storage.
7. The correct answer is c. sofa. You can seat several people on a sofa.
8. The correct answer is b. hall. You walk through the hall to get into the house.
9. The correct answer is a. wall. A well-constructed wall helps keep the rain out of a house.
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- Light Yagami
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1. Which of the following is the difference in minutes of are between the computed and the observed attitude between precomputed and sextant altitudes?
a. Altitude Intercept
B. Azimuth Intercept
c. Latitude Intercopt
d. Madian Intercept
2. Which of the following is the angle between two intersecting great cares?
c. Supplementary angle
a. Complementary angle
b. Dihedral angle
d. Spherical angle
3. Which of the following is the angle between two intersecting planes? a. Complementary angle
b. Dihedral angle
c. Supplementary angle
d. Spherical angle
4. What is an angle through which a ray is bent by refraction?
a. Angle of Deviation
b. Angle of Variation
d. Azimuth Angle
C. Angle of Collimation
5. What is measured by successive transits of the apparent sun over the lower branch of a meridian?
a. Apparent Solar day
b. Mean Solar day
c. Mean Solar Time
d True Solar day
6. What is the time taken for the Mean Sun to make one complete chcuit of the Earth?
a. Apparent Solar day
h. Mean Solar day
c. Mean Solar Time
d. True Solar day
7. As the radius of the cinde is normally very large, it is considered to be a straight line near this point. What line is 90 to the direction of the body?
a. Circle of Position 5. If the TZD is less than the CZD then the assumed position must be moved in the direction of the body
b. Point of Intercession
c. Position Line
d. Termination Point
by the amount of the Intercept. This gives a position of the correct distance from the body. Which of the following the statement refers to?
a. Position Line
b. Termination Point
c. Circle of Position
d. Intercept Terminal Position
9. Which of the following refers to an angular distance cast of the vernal equinox, along the ediptic where the angle
at the ecliptic pole measured castward from the circle of latitude of the vernal equinox through 360?
a. Celestial Longitude
D. Celestial Line of Position
c. Celestial Horizon
d. Celestial Fix
10. What point at which a craft is assumed to be located, as that point on the surface of the earth for which the computed altitude is determined in the solution of a celestial observation?
a. Assumed Latitude
c. Assumed Position d. Line of Position
b. Assumed Longitude
11. What is the sight reduction method that uses a precomputed table of altitudes and azimuths for various celestial
bodies at different times and locations? a. Nautical almanac
b. Pub. No. 249
c. H.O. 229
d. Sight reduction table
12. What is the term for the angle between the observer's meridian and the hour circle of a celestial body? c. Greenwich hour angle
e. Azimuth
b. Declination
d. Local hour angle
13. What is the term for the angular distance of a celestial body north or south of the celestial equator? c. Greenwich hour angle
a. Azimuth
b. Declination
d. Local hour angle
14. What is the term for the angle measured clockwise from north to the direction of a celestial body?
a. Azimuth b. Declination
c. Greenwich hour angle d. Local hour angle
15. What is the term for the angle between the observer's zenith and the direction of a celestial body? a. Altitude b. Elevation
c. Zenith distance
d. All of the above-
16. What is the purpose of sight reduction in celestial navigation? a. To determine the position of a celestial body on the celestial sphere b. To determine the position of the observer on the Earth's surface
c. To determine the angular distance between two celestial bodies
d. To determine the altitude and azimuth of a celestial body from the observer's location
17. What is the name of the reference point on the celestial sphere that is directly above the observer's location?
a. Celestial equator
b. Celestial pole
d. Zenith distance
c. Nadir
18. What sphere?
is the name of the angle between the observer's zenith and the celestial body's
position on the celestial
a. Zenith distance
b. Altitude
c. Azimuth
d. Declination
18. What is the name of the angle between the observer's meridian and the plane that contains the observer's
zenith and the celestial body's position?
a. Zenith distance
b. Alstude
c. Azimuth
d. Declination
19. What are the two main methods of sight reduction in celestial navigation? a. Tabular method and graphical method method b. Analytical method and numerical method d. All of the above
c. Algebraic method and trigonometric
20. What is the name of the practice of position foding using stars and other celestial bodies?
1. Celestial navigation
II. Astronavigation
III. Electronic navigation IV. Terrestrial navigation
a. I only
b. II only
c. Both I and II
d. Both III and IV
21. What is a piece of silvered plate glass mounted on the index arm, perpendicular to the plane of the Instrument, with the center of the reflecting surface directly over the pivot of the index arm? b. Index mirror
a. Horizon mirror
c. Index arm
d. Index screw
22. What is piece of silvered plate glass mounted on the index arm, perpendicular to the plane of the instrument,
and mounted on the frame, perpendicular to the plane of the sextant? c. Index arm
a. Horizon mirror b. Index mirror
d. Horizon screw
23. Which hand are sextants is designed to be held at? b. Right hand
a. Left hand
c. Either left or right
d. With both hands
24. What equipment is used in aboard ship to provide accurate time for timing celestial observations and is set approximately to Greenwich mean time (GMT)?
a. Stopwatch
b. Wristwatch
c. Chronometer
d. Ships clock
25. What publication contains the astronomical information specifically needed by marine a, Bowditch (The American Practical Navigator)
navigators?
c. Nautical Almanac
b. Mariner's Handbook
d. Sight Reduction Table
26. What instance where morning twilight ends? a. During sunrise b. During sunset
c. During midday
d. It never ends
27. What instance where evening twilight begins? b. During sunset
a. During sunrise
c. During midnight
d. It never begins
28. What is instrument error in a sextant?
a. All adjustable errors in a sextant b. All non-adjustable error in a sextant
c. The observer's error d. The celestial body's error
29. What is the name of the sextant altitude correction that compensates for the fact that the observer is on the surface of the earth rather than at the center? a. Augmentation
b. Parallax
c. Dip
d. Deflection of the vertical
30. Which of the a. Index error
following
corrections
amends a sighted sextant angle (Hs) from the visible to the sensible horizon?
b. Dip c. Refraction d. Main body
correction
31. What sextant error could be caused by the horizon glass not being perpendicular to the frame of the
instrument? a. Error of perpendicularity b. Sight error
c. Side error
d. Index error
What is a part of the sextant mounted at the end of the index arms when it engages the teeth of the b? b. Horizon glass
33. What error on the sextant that has an "ON THE ARC
a. Positive error
34. What do you call a position that is ottaned by onervation of celestial bod b. Assumed position
a. DR position
d. Estimated position
35. Whet putation should a navigator use to determine the azimuth of the sun? a The Nautical Almanac Table 229
36 What do you call a position used to simplify the work of computing HC and anmuth from De potion a. Observed position
within the radius of 40 m
b. Assumed position
d. Estrated position
37. Whit sestart error which
is caused by faulty markong h. Prismatic en
of the limb on Verner?
a. Graduation error
d. Index nex
35. What is the difference between your computed position and the observed
a. Autumnal equi
position on 4 msian trans? d. Vernal eririx
c. Intercept
39. What is a colored glass of different shades on a sextant which is used separately to protect the eye frout intere
light of the sun?
a Peffecting glass
b. Shade glass
Horizon glass
d. Index g
40. In order to remove index error from the sextant, you should adjust the
1. Indes mirror and horizon glass to make it parallel when index