A large group of stars revolving around a center is known as a __________.?
A) cluster B) shower C) constellation D) galaxy E)NULL
Arşivler Sorular
Perihelion is the point where the Sun __________.?
A) is nearest to the Earth B) is farthest from the Earth C) is on the opposite side of the Earth from the Moon D) and Moon and Earth are in line E)NULL
Magnetic heading differs from compass heading by __________.?
A) compass error B) true heading C) variation D) deviation E)NULL
Which statement about an estimated position is TRUE?
A) It is more reliable than a fix based on radar bearings. B) It may be based on a single LOP or questionable data. C) When a 3-LOP fix plots in a triangle, the center of the triangle is the…
Lines on a chart which connect points of equal magnetic variation are called __________.?
A) magnetic latitudes B) magnetic declinations C) dip D) isogonic lines E)NULL
What celestial body may sometimes be observed in daylight?
A) New Moon B) Saturn C) Sirius D) Venus E)NULL
You are in LONG 144°E. The date is 6 February, and the zone time is 0800. The Greenwich date and time are __________.?
A) 2200, 5 February B) 2300, 5 February C) 1700, 6 February D) 1800, 6 February E)NULL
Mean lower low water is the reference plane used for __________.?
A) all vertical measurements B) heights above water for lights, mountains, etc. C) soundings on the U.S. east and west coasts D) water depths on the U.S. east coast only E)NULL
The center of a circle of equal altitude, plotted on the surface of the Earth, is the __________.?
A) dead reckoning position of the observer B) assumed position of the observer C) geographical position of the body D) assumed position of the body E)NULL
The Moon appears larger in diameter at the zenith than when near the horizon. What is this called?
A) Parallax in altitude B) Augmentation C) Horizontal parallax D) Libration E)NULL