Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR
USCG General Navigation (Set 32)
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Question 1 of 30
The signal from a ramark will show on the PPI as a __________.
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30 MCQs #1 The signal from a ramark will show on the PPI as a __________. #2 When navigating coastwise and hurricane warnings are received, you should __________. #3 NOAA VHF weather reports are continuously broadcast on VHF channels WX-1, WX-2 and WX-3 on a frequency of __________. #4 Your vessel is participating in the Voluntary Observing Ship Program, you are preparing WS Form B-80 as seen in illustration D041NG below. Your position is LAT 64°42'N, LONG 02°28'W. How would this be encoded? #5 The length of a wave is the length __________. #6 You can determine if your vessel's position is in the dangerous or navigable semicircle of a hurricane by __________. #7 The usual sequence of directions in which a tropical cyclone moves in the Southern Hemisphere is __________. #8 You are using a radar in which your own ship is shown at the center, and the heading flash always points to 0°. If bearings are measured in relation to the flash, what type of bearings are produced? #9 Swells that have outrun the storm are produced in the __________. #10 Which condition would NOT indicate the approach of a tropical storm? #11 Your vessel is participating in the Voluntary Observing Ship Program, you are preparing WS Form B-80 as seen in illustration D041NG below. One-half of the sky is covered with clouds, and the anemometer indicates that the apparent wind is from 340° relative at 14 knots. You are on course 307°T at 12.6 knots. How should you encode group Nddff? #12 The beam width of your radar is 2°. The left tangent bearing of a small island, as observed on the PPI scope, is 056°pgc. If the gyro error is 2°E, what bearing would you plot on the chart? #13 When you turn on the fast time constant (differentiator) control of a radar it will __________. #14 You are underway on course 050°T and your maximum speed is 11 knots. The eye of a hurricane bears 070°T, 80 miles from your position. The hurricane is moving towards 270°T at 19 knots. What course should you steer at 11 knots to have the maximum CPA? #15 The radar control that shortens all echoes on the display and reduces clutter caused by rain or snow is the __________. #16 The radar control that reduces weak echoes out to a limited distance from the ship is the __________. #17 Radar makes the most accurate determination of the __________. #18 What is the approximate wave length of an X Band Radar operating on a frequency of approximately 9500 MHz? #19 You have another ship overtaking you close aboard to starboard. You have 3 radar targets bearing 090° relative at ranges of .5 mile, 1 mile, and 1.5 miles. In this case, the unwanted echoes are called __________. #20 You are underway on course 050°T and your maximum speed is 12 knots. The eye of a hurricane bears 080°T, 100 miles from your position. The hurricane is moving towards 265°T at 22 knots. If you maneuver at 12 knots to avoid the hurricane, what could be the maximum CPA? #21 An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observer's vessel. Which of the following is NOT a characteristic of indirect echoes? #22 Your radar indicates a target; however, there is no visible object at the point indicated. A large mountain, approximately 50 miles away on the same bearing as the target, is breaking the horizon. You should suspect the radar target is caused by __________. #23 You are attempting to locate your position relative to a hurricane in the Northern Hemisphere. If the wind direction remains steady, but with diminishing velocity, you are most likely __________. #24 A Doppler speed log indicates speed over ground __________. #25 A Doppler log in the bottom return mode indicates the __________. #26 The wind velocity is higher in the dangerous semicircle of a tropical cyclone because of the __________. #27 While navigating in fog off a coastline of steep cliffs, you hear the echo of the ships fog horn 5.5 seconds after the signal was sounded. What is the distance to the shore? #28 While navigating in fog off a coastline of steep cliffs, you hear the echo of the ship's fog horn 3 seconds after the signal was sounded. What is the distance to the shore? #29 While navigating in fog off a coastline of steep cliffs, you hear the echo of the ships fog horn 2 1/2 seconds after the signal was sounded. What is the distance to the shore? #30 A hand held instrument used to measure distances between objects and the ship is a __________.
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