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单选题
Which action should be taken when an auxiliary boiler in is operation?（）
A
Clean all electrical connections
B
Lift the relief valves by hand
C
Inspect and clean all solenoid valves
D
Inspect for oil and water leaks
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The correct procedure for giving an auxiliary boiler a bottom blow, is to begin .A.when the boiler has been secured long enough for most solids to settleB.when the boiler has been cooled to ambient temperatureC.only after raising the water level to within 0.5 inch of the high water cutout onlyD.after bypassing the low pressure
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The water in an auxiliary boiler should be tested for chloride content to determine ( ).A.total dissolved solidsB.salt contaminationC.water harcnessD.chlorine contamination
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The boiler water alkalinity in a coil-type auxiliary boiler should be maintained at the pH recommended by the boiler manufacturer to______.A.precipitate(使沉淀) silica （硅石）from solutionB.reduce corrosion in the heating coilC.prevent clogging and erosion in the coilD.maintain zero water hardness
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When an auxiliary boiler is panting and emitting(发出) black smoke, you should______.A.increase the fuel oil temperatureB.decrease the fuel oil temperatureC.decrease the fuel oil supply pressureD.increase the air supply
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Which statement about the inert gas system is TRUE ________．A.Boiler soot blowers should never be used when the IG system is operatingB.The boiler will produce the best quality of flue gas for the IG system when the boiler load is very lightC.The boiler will produce the most quantity of flue gas for the IG system when the boiler load is very lightD.Flue gas with excessive oxygen content is de-oxygenated in the scrubber
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You are testing the external inflation bladder on an immersion suit and find it has a very slow leak．Which action should be taken ________．A.Replace the suitB.Replace the inflation bladderC.Take it out of service and repair in accordance with the manufacturers instructionsD.Some leakage should be expected and a topping off tube is provided; no other action is necessary
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单选题When lighting off an auxiliary boiler, which of the problems listed could cause the burners to sputter?（）A
cold fuel oilB
low fuel oil pressureC
low atomizing steam pressureD
water in the fuel oil
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单选题When installing a hydraulic hose, which of the following precautions should be taken?（）A
The hose should not be twistedB
The hose should be protected with a sleeve if it is subjected to rubbingC
There should be some slack in the hoseD
All of the above
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单选题The water level of an exhaust gas boiler which is independent of the auxiliary boiler and just as the extra heating surface of it （）A
will be modulated in proportionB
will be modulated in proportion and integralC
will be modulated in proportion and differentialD
will not be modulated at all
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单选题In readying an auxiliary water-tube boiler for a routine hydrostatic test, which of the following procedures should be undertaken prior to filling the boiler with fresh water?（）A
The safety valve escape piping should be disconnected from the valve body and a blank insertedB
The boiler vent valves should be openedC
All hand-hole/manhole covers should be tightened up as much as possible to preclude any leaksD
All of the above
考题
单选题In readying an auxiliary water-tube boiler for a routine hydrostatic test, which of the following procedures should be undertaken prior to filling the boiler with fresh water?（）A
The safety valve escape piping should be disconnected from the valve body and a blank insertedB
The boiler vent valves should be openedC
All handhole/manhole covers should be tightened up as much as possible to preclude any leaksD
All of the above
考题
单选题When an auxiliary boiler is panting and emitting black smoke, you should （）.A
increase the fuel oil temperatureB
decrease the fuel oil temperatureC
decrease the fuel oil supply pressureD
increase the air supply
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单选题After abandoning ship which action should be taken IMMEDIATELY upon entering a liferaft?（）A
Open equipment packB
Issue anti-seasickness medicineC
Cut painter and clear the shipD
Dry the liferaft floor and inflate
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单选题Which action should be taken on receipt of a GMDSS distress alert（）.A
Read the display screen and/or printoutB
Silence the alarmC
Listen for any follow up voice/telex transmission on the appropriate frequencyD
All of the above
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单选题The water in an auxiliary boiler should be tested daily for （）.A
dissolved oxygenB
chloridesC
sludgeD
dissolved nitrogen
考题
单选题Which of the following actions should be taken by the engine room watch when the general alarm is sounded continuously?（）A
The fire pump should be startedB
The boiler rims should be securedC
The fixed CO2 system should be initiated into actionD
The engine room ventilation should be secured
考题
单选题The water in an auxiliary boiler should be chemically tested daily for alkalinity and（）A
soap hardnessB
nitrog encontentC
chloride contentD
dissolved CO2
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单选题Which of the following actions should normally be taken during each watch when the auxiliary boilers is in operation?（）A
clean the flame scanner photocell windowB
Inspect and clean all solenoid valvesC
lift the safety valves by handD
Inspect for oil or water leaks
考题
单选题When there is a flame failure in an automatically fired auxiliary boiler, the （）.A
air supply is shut offB
fuel supply is shut offC
water supply is shut offD
safety valve lifts
考题
单选题For proper operation, auxiliary boiler feed water must have which of the following characteristics?（）A
High oxygen concentrationB
Low pHC
Proper alkalinityD
All of the above
考题
单选题The water level in a steaming auxiliary boiler will always （）A
rise when the steam pressure is increasedB
remain constant as long as the feed pump operatesC
fall when the steam pressure is decreasedD
vary as the steam demand changes
考题
单选题The boiler water alkalinity in a coil-type auxiliary boiler should be maintained at the pH recommended by the boiler manufacturer to（）A
precipitate silica from solutionB
reduce corrosion in the heating coilC
prevent clogging and erosion in the coilD
maintain zero water hardness
考题
单选题The water in an auxiliary boiler should be tested for chloride content to determine （）.A
total dissolved solidsB
salt contaminationC
water hardnessD
chlorine contamination
考题
单选题When taking action to avoid collision，you should（）.A
Make sure the action is taken in enough timeB
Not make any large course changesC
Not make any large speed changesD
All of the above
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单选题Before an auxiliary boiler is shutdown for an extended period of time, the water in the boiler should have a pH value of （）.A
10B
7C
4D
1
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单选题When occurring a fire in the scavenge air box, the following measures should be taken except for（）A
reducing speed to SLOW and asking bridge for permission to stopB
stopping the fuel oil supplyC
switching-on the auxiliary blowersD
putting the scavenge air box fire extinguishing equipment into function
考题
单选题The water in an operating auxiliary boiler should be tested for alkalinity and chloride content each（）.A
hourB
dayC
weekD
month
考题
单选题Which action should be taken when an auxiliary boiler in is operation?（）A
Clean all electrical connectionsB
Lift the relief valves by handC
Inspect and clean all solenoid valvesD
Inspect for oil and water leaks
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