更多"Lighted white and orange buoys must"的相关试题:
[单项选择]Buoys which mark isolated dangers are painted with alternating（）.
A. red and black bands
B. green and black bands
C. red and white stripes
D. green and white bands
[单项选择]Buoys which mark dredging areas are painted（）.
A. black
B. yellow
C. green
D. red
[单项选择]Buoys which only mark the left or right side of the channel will never exhibit a light with which characteristic? （）
A. Flashing
B. Quick flashing
C. Composite group flashing
D. Equal interval (isophase)
[单项选择]Safe water buoys may show ONLY（）.
A. flashing red lights
B. flashing green lights
C. white lights
D. yellow lights
[单项选择]Records which must be retained on board after report of casualty to a vessel include the（）.
A. tour reports
B. hull reports
C. machinery repair record book
D. deck equipment log
[单项选择]In a narrow channel, a signal of intent which must be answered by the other vessel, is sounded by a vessel（）.
A. meeting another head-on
B. crossing the course of another
C. overtaking another
D. Any of the above
[单项选择]Which information must automatic identification systems (AIS) automatically provide to appropriately equipped shore stations，vessels and aircraft? （）
A. Vessel's type
B. Vessel's course
C. Navigational status
D. All of the above
[单项选择]An anchored vessel on pilotage duty must show which light(s) at night? （）
A. A sternlight only
B. Anchor lights only
C. A white light over a red light only
D. A white light over a red light and anchor lights
[单项选择]To render the（）liable，the shipowners must show that the proximate cause of the detention or expense was trading to a river with a bar or to a port with a bar.
A. Receivers
B. Consignees
C. Charterers
D. Cargoowners
[单项选择]Which factor must be considered when determining the order of loading of dissimilar products through the same piping system aboard a tanker? （）
A. Contamination of the cargo
B. Flash points
C. Reid vapor pressures
D. Specific gravities
[单项选择]When discharging bilge water, which criteria must be observed?（）
A. The requirement for the oil content of bilge water discharged is 15 ppm
B. No discharge in sensitive waters
C. Any discharge in sensitive waters
D. International, national or local requirements have to be observed
[单项选择]Which action must be taken when an individual cargo tank is closed off from the inert gas system by the tank isolation valve?（）
A. The tank must be gas freed
B. The tank must be ballasted
C. The tank must be vented to the atmosphere
D. The bypass valve must also be closed
[单项选择]The type of davit on which you must turn a crank in order to swing the lifeboat out over the ship’s side is a（）.
A. sheath-screw davit
B. gravity davit
C. radial davit
D. bruckner davit
[单项选择]（） is a defined area within which ships must use particular caution and should follow the recommended direction of traffic flow.
A. Recommended Direction of Traffic Flow
B. Roundabout
C. Separation Zone or Line
D. Precautionary Area
[单项选择]A situation has occurred in which your vessel must be towed. When the towing vessel passes the towing line to you，you should secure the line（）.
A. to the base of the foremast
B. to the forward-most bitts
C. to the forward part of the deckhouse
D. at the stern
[单项选择]
Which of the following operations must be entered on the Oil Record Book Part Ⅰ? （）
Ⅰ.Routine discharge at sea of bilge water containing oil from the machinery spaces
Ⅱ.Bunkering of fuel oil
A. Ⅰ only
B. Ⅱ only
C. both Ⅰ and Ⅱ
D. neither Ⅰ nor Ⅱ
[单项选择]Which of the following must be eliminated to prevent accidents?（）
A. Unsafe actions
B. Orderliness
C. Frequent inspections
D. Good work habit
[单项选择]Which of the following precautions must be taken if an electric immersion heater is used to keep the coolant in a diesel engine warm during the time the engine is secured?（）
A. The coolant temperature must be maintained at 180℃
B. The thermostatic bypass valves must be manually opened before the engine is started
C. The pressure cap must be removed while the engine is secured
D. Electrical power to the heater must be secured before the cooling system is drained
