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.
101: INLAND ONLY You are overtaking another power-driven vessel in a narrow channel. The other vessel will have to move to allow you to pass. You wish to overtake the other vessel on her starboard side. Your first whistle signal should be __________.
Y a. one short blast N b. two short blasts N c. two prolonged blasts followed by one short blast N d. two prolonged blasts followed by two short blasts 143: INLAND ONLY A light used to signal passing intentions must be an __________.
N a. alternating red and yellow light N b. alternating white and yellow light Y c. all-round white or yellow light N d. all-round white light only 146: INLAND ONLY What characteristic must a light have if used to signal passing intentions?
N a. It must be an all-round white light. N b. It must be an alternating blue and white light. Y c. It must be either an all-round white or an all-round yellow light. N d. It must be an alternating red and yellow light. 147: INLAND ONLY What characteristic must a light used to indicate passing intentions have?
N a. It must be an alternating red and yellow light. N b. It must be an all-round white light. N c. It must be an all-round yellow light. Y d. It must be either an all-round white or an all-round yellow light. 159: BOTH INTERNATIONAL & INLAND The lights shown are exhibited by a vessel __________. (DIAGRAM 49 )
N a. submarine on the surface N b. air-cushion vessel in the non-displacement mode N c. vessel engaged in trawling Y d. vessel not under command 190: INLAND ONLY At night, you see the lights shown. They are shown on a __________. (DIAGRAM 75 )
N a. barge being pushed ahead N b. barge being towed astern Y c. tug pushing a barge ahead N d. tug towing a barge astern 258: INLAND ONLY Vessels "A" and "B" are meeting on a river as shown and will pass 1/4 mile apart. Which statement is TRUE? (DIAGRAM 41 )
N a. Whistle signals must be exchanged in all situations when passing within one half mile. Y b. If a passing agreement is reached by radiotelephone, whistle signals are optional. N c. If a passing agreement is reached by radiotelephone whistle signals are still required. N d. None of the above 366: BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing as shown. Vessel "A" sounds one short blast on the whistle. Vessel "B" is the __________. (DIAGRAM 42 )
N a. give-way vessel Y b. stand-on vessel N c. overtaking vessel N d. burdened vessel 4024: BOTH INTERNATIONAL & INLAND The word "vessel", in the Rules, includes __________.
N a. sailing ships N b. nondisplacement craft N c. seaplanes Y d. All of the above 4047: BOTH INTERNATIONAL & INLAND A vessel trawling will display a __________.
N a. red light over a white light Y b. green light over a white light N c. yellow light over a red light N d. white light over a green light 4048: BOTH INTERNATIONAL & INLAND If it becomes necessary for a stand-on vessel to take action to avoid collision, she shall NOT, if possible, __________.
N a. decrease speed N b. increase speed Y c. turn to port for a vessel on her own port side N d. turn to starboard for a vessel on her own port side 4057: BOTH INTERNATIONAL & INLAND You see a vessel displaying the code flag "LIMA" below which is a red ball. The vessel is __________.
N a. trolling N b. getting ready to receive aircraft N c. aground Y d. in distress 4084: BOTH INTERNATIONAL & INLAND If you are approaching a bend, and hear a whistle signal of one prolonged blast from around the bend, you should answer with a signal of __________.
N a. a short blast Y b. a prolonged blast N c. one short, one prolonged, and one short blast N d. a long blast 4137: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning lights and shapes for towing vessels?
N a. If a tow exceeds 200 meters in length, the towing vessel will display a black ball during daylight. N b. When towing astern, a vessel will carry her identification lights at the masthead in addition to her regular masthead light. N c. When towing astern, the towing vessel may show either a stern light or a towing light, but not both. Y d. If the towing vessel is over 50 meters in length, she must carry forward and after masthead lights. 4150: BOTH INTERNATIONAL & INLAND A towing vessel 30 meters in length is pushing barges ahead. How many white masthead lights is the vessel REQUIRED to show at night?
N a. One Y b. Two N c. Three N d. Four 4180: BOTH INTERNATIONAL & INLAND A power-driven vessel, when towing astern, shall show __________.
N a. two towing lights in a vertical line Y b. a towing light in a vertical line above the stern light N c. two towing lights in addition to the stern light N d. a small white light in lieu of the stern light 4232: BOTH INTERNATIONAL & INLAND The use of the signal consisting of five or more short blasts on the ship's whistle __________.
N a. replaces directional signals N b. makes the other vessel the give-way vessel Y c. indicates doubt as to the other vessel's action N d. makes it necessary to slow or stop 4248: BOTH INTERNATIONAL & INLAND What is NOT a distress signal?
N a. Red flares or red rockets N b. Continuous sounding of fog signaling apparatus N c. International Code Flags "November" and "Charlie" Y d. Basket hanging in the rigging 4269: BOTH INTERNATIONAL & INLAND All of the following are distress signals under the Rules EXCEPT __________.
Y a. International Code Signal "AA" N b. orange-colored smoke N c. red flares N d. the repeated raising and lowering of outstretched arms 4352: BOTH INTERNATIONAL & INLAND What is the minimum vessel length which must show two white masthead lights, one forward and one aft, when underway at night?
N a. 7 meters N b. 20 meters Y c. 50 meters N d. 100 meters 4391: BOTH INTERNATIONAL & INLAND You are crossing a narrow channel in a small motorboat. You sight a tankship off your port bow coming up the channel. Which statement is TRUE?
N a. You are the stand-on vessel because the tankship is to port. Y b. You cannot impede the safe passage of the tankship. N c. The tankship is the stand-on vessel because it is to port of your vessel. N d. The tankship is the stand-on vessel because it is the larger of the two vessels. 4641: BOTH INTERNATIONAL & INLAND Which vessel must exhibit forward and after white masthead lights when making way?
Y a. A 75-meter vessel restricted in her ability to maneuver N b. A 100-meter sailing vessel N c. A 150-meter vessel engaged in fishing N d. A 45-meter vessel engaged in towing 4676: BOTH INTERNATIONAL & INLAND You are underway in a narrow channel and are being overtaken by a vessel astern. The overtaking vessel sounds a signal indicating her intention to pass you on your starboard side. If such an action appears dangerous, you should sound __________.
N a. one prolonged followed by one short blast N b. one prolonged, one short, one prolonged, and one short blast in that order Y c. five short and rapid blasts N d. three short and rapid blasts 4819: BOTH INTERNATIONAL & INLAND Which breadth shown represents the breadth as defined in the Rules? (DIAGRAM 87 )
Y a. A N b. B N c. C N d. D 4825: BOTH INTERNATIONAL & INLAND What is a light signal authorized by the Secretary of the Navy as an additional navigational light for a ship of war?
N a. Two yellow lights in a vertical line for a carrier launching aircraft N b. Green masthead and yardarm lights for a vessel engaged in mineclearing operations Y c. Flashing amber beacon for submarines N d. Yellow flares indicating torpedo firing exercises 8045: INTERNATIONAL ONLY You intend to overtake a vessel in a narrow channel, and you intend to pass along the vessel's port side. How should you signal your intention?
N a. No signal is necessary. N b. Two prolonged blasts N c. Two short blasts Y d. Two prolonged followed by two short blasts 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 8089: BOTH INTERNATIONAL AND INLAND A towing light __________.
N a. flashes at regular intervals of 50-70 flashes per minute Y b. is yellow in color N c. shows an unbroken light over an arc of the horizon of not less than 180° nor more than 225° N d. All of the above 8115: INTERNATIONAL ONLY Of the vessels listed, which must keep out of the way of all the others?
N a. A vessel constrained by her draft N b. A vessel restricted in her ability to maneuver Y c. A vessel pushing a barge N d. A vessel engaged in fishing 8135: INTERNATIONAL ONLY What characteristic must a light used to indicate passing intentions have?
N a. It must be an all-round red light. Y b. It must be an all-round white light. N c. It must be an all-round yellow light. N d. It can be either an all-round white or yellow light.