A cold front moving in from the northwest can produce __________.?
A) thunderstorms, hail, and then rapid clearing B) increasing cloud cover lasting for several days C) lengthy wet weather D) low ceilings with thick cirrus clouds E)NULL
Arşivler Sorular
The dry-bulb temperature is 78°F and the wet-bulb temperature is 62°F. What is the relative humidity?
A) 0.16 B) 0.24 C) 0.39 D) 0.79 E)NULL
On entering from seaward, a starboard side daymark will __________.?
A) show a fixed red light if lighted B) show a Morse (A) white light C) be square in shape D) have an even number if numbered E)NULL
Neap tides occur __________.?
A) at the start of spring, when the Sun is nearly over the equator B) only when the Sun and Moon are on the same sides of the Earth and are nearly in line C) when the Sun and Moon…
Variation is not constant; it is different with every change in __________.?
A) speed B) vessel heading C) geographical location D) cargo E)NULL
You are on course 201°T. To check the speed of your vessel you should observe a celestial body on which bearing?
A) 090° B) 111° C) 180° D) 201° E)NULL
The charted channel depth at Eastport, ME, is 28 feet. You are drawing 31.5 feet and wish 2 feet clearance under the keel. What is the earliest time after 1700 (ZD +4) on 6 September 1983 that you can enter the channel?
A) 1805 B) 1840 C) 1925 D) 2000 E)NULL
What is the equivalent of 42 min. 48 sec. in arc units?
A) 21°24′ B) 18°16′ C) 11°19′ D) 10°42′ E)NULL
You have replaced the chart paper in the course recorder. What is NOT required to ensure that a correct trace is recorded?
A) Test the electrical gain to the thermograph pens B) Set the zone pen on the correct quadrant C) Line the course pen up on the exact heading of the ship D) Adjust the chart paper to indicate the correct…
Under the U.S. Aids to Navigation System, a lighted buoy with a spherical topmark marks __________.?
A) the port side of the channel B) the position of underwater cables C) safe water D) a hazard to navigation E)NULL