This is an interactive test. Read each question and select the proper answer by clicking on the appropriate answer. If a "Y" appears, your choice is correct. If a "N" appears, more study may be in order.
18: INLAND ONLY Which lights are required for a barge, not part of a composite unit, being pushed ahead?
N a. Sidelights and a stern light N b. Sidelights, a special flashing light, and a stern light Y c. Sidelights and a special flashing light N d. Sidelights, a towing light, and a stern light 168: BOTH INTERNATIONAL & INLAND You are on a vessel heading due north and see the lights shown one point on your port bow. This vessel could be heading __________. (DIAGRAM 51 )
N a. NW N b. SW N c. NE Y d. SE 181: BOTH INTERNATIONAL & INLAND At night, you see the display of lights shown. They indicate a(n) __________. (DIAGRAM 74 )
Y a. sailing vessel N b. 8-meter power-driven vessel N c. vessel not under command N d. 12-meter fishing vessel 277: INLAND ONLY While underway you sight the lights shown with the yellow lights flashing. The lights displayed should be __________. (DIAGRAM 81 )
Y a. visible at night and during periods of restricted visibility N b. visible for at least one mile N c. more than 50 meters apart N d. flashing at intervals of 120 flashes per minute 317: BOTH INTERNATIONAL & INLAND At night a vessel displaying the lights as shown is __________. (DIAGRAM 82 )
N a. a pilot boat N b. sailing N c. anchored Y d. fishing 321: BOTH INTERNATIONAL & INLAND Which dayshape(s) would be displayed by the vessel engaged in the operation indicated by the lights shown. (DIAGRAM 82 )
N a. a cylinder N b. a diamond N c. a ball, a diamond and another ball Y d. two cones with apexes together 402: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a prolonged blast from another vessel. This signal indicates a __________.
N a. sailboat making way N b. power-driven vessel making way, towing Y c. power-driven vessel making way N d. vessel being towed 4101: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning the danger signal?
Y a. When any vessel fails to understand the intentions of an approaching vessel she must sound the danger signal. N b. Only the stand-on vessel can sound the danger signal. N c. Distress signals may be used in place of the danger signal. N d. The danger signal consists of 4 or more short blasts of the whistle. 4317: BOTH INTERNATIONAL & INLAND What signal would a vessel aground show during daylight?
N a. One black ball N b. Two black balls Y c. Three black balls N d. Four black balls 4355: BOTH INTERNATIONAL & INLAND You are crossing a narrow channel in an 18-meter tug when you sight a loaded tankship off your port bow coming up the channel. Which statement is correct?
N a. Neither vessel is the stand-on vessel because the tankship is crossing. Y b. You cannot impede the safe passage of the tankship. N c. The tankship is the stand-on vessel because it is in the channel. N d. The tankship is the stand-on vessel because it is the larger of the two vessels. 4374: BOTH INTERNATIONAL & INLAND A vessel aground would show the same day-shape as a __________.
N a. vessel towing a submerged object N b. dredge underway and dredging N c. hydrographic survey vessel at anchor and surveying Y d. None of the above 4445: BOTH INTERNATIONAL & INLAND Which vessel must show a towing light above the stern light?
N a. A vessel pushing three barges ahead N b. A vessel towing alongside Y c. A vessel with a 150-meter tow astern N d. None of the above 4457: BOTH INTERNATIONAL & INLAND If you anchor your 25-meter vessel in a harbor, what light(s) must you show?
Y a. One all-round white light N b. Two all-round white lights N c. One all-round red light N d. All the deck house lights 4459: BOTH INTERNATIONAL & INLAND Three short blasts of the whistle means __________.
N a. "danger" N b. "I am in distress" N c. the vessel is not under command (broken down) Y d. "I am operating astern propulsion" 4478: BOTH INTERNATIONAL & INLAND Risk of collision exists when an approaching vessel has a(n) __________.
Y a. generally steady bearing and decreasing range N b. generally steady range and increasing bearing N c. increasing range and bearing N d. decreasing bearing only 4485: BOTH INTERNATIONAL & INLAND You are underway in reduced visibility. You hear the fog signal of another vessel about 20° on your starboard bow. Risk of collision may exist. You should __________.
N a. alter course to starboard to pass around the other vessel Y b. reduce your speed to bare steerageway N c. slow your engines and let the other vessel pass ahead of you N d. alter course to port to pass the other vessel on its portside 4494: BOTH INTERNATIONAL & INLAND An anchored vessel on pilotage duty must show which light(s) at night?
N a. A stern light only N b. Anchor lights only N c. A white light over a red light only Y d. A white light over a red light and anchor lights 4505: BOTH INTERNATIONAL & INLAND Vessels of less than what length may not impede the passage of other vessels which can safely navigate only within a narrow channel or fairway?
N a. 10 meters Y b. 20 meters N c. 30 meters N d. 40 meters 4557: BOTH INTERNATIONAL & INLAND Rule 14 describes the action to be taken by vessels meeting head-on. Which of the following conditions must exist in order for this rule to apply?
N a. Both vessels must be power-driven. N b. They must be meeting on reciprocal or nearly reciprocal courses. N c. The situation must involve risk of collision. Y d. All of the above 4612: BOTH INTERNATIONAL & INLAND An all-round flashing yellow light may be exhibited by a(n) __________.
N a. vessel laying cable N b. vessel towing a submerged object N c. vessel not under command Y d. air cushion vessel 4667: BOTH INTERNATIONAL & INLAND While underway and in sight of another vessel, less than one half mile away, you put your engines on astern propulsion. Which statement concerning whistle signals is TRUE?
N a. You need not sound any whistle signals. N b. You must sound one blast if backing to starboard. N c. You must sound whistle signals only if the vessels are meeting. Y d. You must sound three short blasts on the whistle. 4710: BOTH INTERNATIONAL & INLAND Which vessel would exhibit sidelights when underway and not making way?
N a. A vessel engaged in fishing N b. A vessel not under command N c. A vessel engaged in dredging Y d. A power-driven vessel 4714: BOTH INTERNATIONAL & INLAND Which vessel would exhibit sidelights when underway and not making way?
N a. A vessel not under command Y b. A vessel pushing ahead N c. A vessel engaged in dredging N d. A vessel trawling 4845: BOTH INTERNATIONAL & INLAND What represents the length of a vessel as defined by the Rules? (DIAGRAM 86 )
N a. A N b. B Y c. C N d. D 4850: BOTH INTERNATIONAL & INLAND The Rules state that risk of collision shall be deemed to exist __________.
N a. whenever two vessels are on opposite courses N b. whenever a vessel crosses ahead of the intended track of another vessel Y c. if the bearing of an approaching vessel does not appreciably change N d. if one vessel approaches another so as to be overtaking 4872: BOTH INTERNATIONAL & INLAND If you are the stand-on vessel in a crossing situation, you may take action to avoid collision by your maneuver alone. When may this action be taken?
N a. As soon as you determine that risk of collision exists N b. Only when you have reached extremis Y c. When it becomes apparent to you that the give-way vessel is not taking appropriate action N d. When you determine that your present course will cross ahead of the other vessel 8032: INTERNATIONAL ONLY Under what circumstances would an overtaking vessel sound a whistle signal of two prolonged followed by one short blast?
N a. When overtaking in restricted visibility Y b. When overtaking in a narrow channel N c. When overtaking on open waters N d. When no other vessels are in the immediate area 8050: INTERNATIONAL ONLY A sailing vessel is overtaking a power-driven vessel in a narrow channel, so as to pass on the power-driven vessel's port side. The overtaken vessel will have to move to facilitate passage. The sailing vessel is the __________.
N a. stand-on vessel and would sound two short blasts N b. give-way vessel and would sound no whistle signal N c. stand-on vessel and would sound no whistle signal Y d. give-way vessel and would sound two prolonged blasts followed by two short blasts 8060: INTERNATIONAL ONLY You are operating a vessel in a narrow channel. Your vessel must stay within the channel to be navigated safely. Another vessel is crossing your course from starboard to port, and you are in doubt as to his intentions. According to Rule 9, you __________.
Y a. may sound the danger signal N b. must sound one prolonged and two short blasts N c. should sound one short blast to indicate that you are holding course and speed N d. are required to back down 8063: INTERNATIONAL ONLY On open water two vessels are in an overtaking situation. The overtaking vessel has just sounded one short blast on the whistle. What is the meaning of this whistle signal?
N a. "I request permission to pass you on my port side." N b. "I will maintain course and speed and pass you on your starboard side." N c. "On which side should I pass?" Y d. "I am changing course to starboard."