网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
When approaching a fire from win ward, you should shield firefighters from the fire by using（）
A
low-velocity fog
B
high-velocity fog
C
a straight stream of water
D
foam spray
参考答案
参考解析
解析：
暂无解析
更多 “单选题When approaching a fire from win ward, you should shield firefighters from the fire by using（）A low-velocity fogB high-velocity fogC a straight stream of waterD foam spray” 相关考题
考题
You should remember () from the point when you are writing a composition.
A.don’t wanderB.not to wanderC.no wanderingD.not wander
考题
A mobile offshore drilling unit under tow is approaching a fog bank. When should fog signals be started?A.When the towing vessel enters the fogB.When the drilling rig enters the fogC.When the towing vessel can no longer be seen from the rigD.Immediately
考题
What should you be concerned with when loading and securing vehicles aboard a Ro-Ro vessel ________．A.That all fuel is drained from the vehicles' tanks to prevent fire hazardB.The size，weight，and center of gravity of vehicle/cargo unitC.The preferred stowage of vehicles is athwartships wherever possibleD.The vehicles' brakes should not be set to allow for adjusting the lashings
考题
How would you pass a red buoy in the maritime buoyage system “A”?______.A.keep the buoy on the vessel’s starboard side when approaching a port and on the vessel’s port side when leavingB.keep the buoy on the vessel’s port side when approaching a port and on the vessel’s starboard side when leavingC.keep the buoy on the vessel’s starboard side when approaching and leavingD.keep the buoy on the vessel’s port side when approaching and leaving
考题
THE MASTER WHEN CALL TO THE BRIDGE AND TAKING OVER THE CONN FROM THE OFFICER OF THE WATCH ，SHOULD SAY：YOU NOW HAVE THE CONN。
考题
单选题When electrical equipment is involved in a fire，the stream of dry chemicals should be（）.A
aimed at the source of the flamesB
fogged above the equipmentC
shot off a flat surface onto the flamesD
used to shield against electrical shock
考题
单选题When fighting a spreading fire resulting from a broken fuel line, you should FIRST （）.A
look for a CO2 extinguisherB
use a soda acid extinguisherC
shut off the fuel supplyD
smother the fire with rags
考题
单选题A mobile offshore drilling unit under tow is approaching a fog bank. When should fog signals be started? （）A
When the towing vessel enters the fogB
When the drilling rig enters the fogC
When the towing vessel can no longer be seen from the rigD
Immediately
考题
单选题When approaching Block Island Sound from Long Island Sound，you will enter waters governed by the International Rules of the Road when you（）.A
pass through The RaceB
cross the territorial sea boundaryC
exit Block Island Sound to the east or southD
None of the above，as Long Island Sound is governed by the International Rules of the Road
考题
单选题During which condition should the operator of a pedestal crane shutdown operations?（）A
Lightning in the vicinityB
An approaching squall lineC
A fire on the pierD
All of the above
考题
单选题When you hear three short blasts on the ships whistle and the same signal on the general alarm bells, you （）.A
are required to go to your life-raftB
are dismissed from drillsC
should point to the man overboardD
should start the fire pump
考题
单选题You are underway and approaching a bend in the channel where vessels approaching from the opposite direction cannot be seen．You should sound（）.A
one blast，4 to 6 seconds in durationB
three blasts，4 to 6 seconds in durationC
one continuous blast until you are able to see around the bendD
one blast，8 to 10 seconds in duration
考题
单选题You are about to cross a narrow channel when you see an approaching vessel that can only be navigated safely within the channel.You should（）.A
cross the channel as you are the stand-on vesselB
cross only if the vessel in the channel is approaching on your port sideC
not cross the channel if you might impede the other vesselD
sound the danger signal
考题
单选题Your vessel is approaching a bend. You hear a prolonged blast from around the bend. You should （）.A
back your enginesB
stop your engines and driftC
answer with one prolonged blastD
sound the danger signal
考题
单选题When two fire hose teams are attacking a fire they should（）.A
use different fire hose pressuresB
use fire hoses of different sizesC
not attack the fire from opposite sidesD
not wear protective clothing
考题
单选题When an oil fire has been extinguished, the surface of the oil should be kept covered with foam to prevent （）.A
air from contacting the oil vaporsB
permitting re-ignition boiling of the heated oilC
spontaneous combustion below the oil surfaceD
toxic fumes from escaping to the surface
考题
单选题To lubricate the swivel or remove corrosion from a fire hose coupling，you should use（）.A
glycerineB
graphiteC
keroseneD
fresh water and soap
考题
单选题If in doubt as to the true water level when a boiler is being oil-fired, you should （）.A
take no measuresB
extinguish the fire as soon as possibleC
feed water to the boilerD
open the blow down valve
考题
单选题When fighting an electrical fire, you should first （）.A
stop ventilation to the areaB
stop the vesselC
secure electricity to the circuitD
apply CO2 to the fire
考题
单选题To prevent the spread of fire by convection you should （）.A
remove combustibiles from direct exposureB
cool the bulkhead around the fireC
close all openings to the areaD
shut off electrical power
考题
单选题To prevent the spread of fire by conduction you should（）.A
cool the bulkheads around the fireB
remove combustibles from direct exposureC
close all openings to the areaD
shut off all electric power
考题
单选题How would you pass a red buoy in the maritime buoyage system“A” （）.A
keep the buoy on the vessel's starboard side when approaching a port and on the vessel's port side when leavingB
keep the buoy on the vessel's port side when approaching a port and on the vessel's starboard side when leavingC
keep the buoy on the vessel's starboard side when approaching and leavingD
keep the buoy on the vessel's port side when approaching and leaving
考题
单选题When possible，what should be the FIRST step in combating a fire on deck resulting from a cargo overflow or a leaking cargo line?（）A
Blanket the cargo spill with foamB
Prevent the spread of fire with a foam damC
Apply CO2 on burning fuel at its sourceD
Shut off the transfer of cargo
考题
单选题When fighting a fire in an enclosed space，the hose team should crouch as low as possible to（）.A
protect themselves from smokeB
obtain the best available airC
allow the heat and steam to pass overheadD
All of the above
考题
单选题When fighting fires in spaces containing bottles of LPG (liquefied petroleum gas)，you should （）.A
attempt to isolate the fire from the LPGB
cool the bottles or remove them from the fire areaC
see that the valves on all LPG bottles are closedD
place insulating material over the bottles
热门标签
最新试卷
