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
The indications of a scavenge fire are excessive black smoke, （） and peeling from scavenge trunking.
A
turbo-chargers surge
B
spark seen from the drains
C
paint blistering
D
all above are right
参考答案
参考解析
解析：
暂无解析
更多 “单选题The indications of a scavenge fire are excessive black smoke, （） and peeling from scavenge trunking.A turbo-chargers surgeB spark seen from the drainsC paint blisteringD all above are right” 相关考题
考题
The fire _______ a lot of smoke but little damage was done.A. gave awayB. sent offC. sent upD. gave off
考题
If the scavenge fire is of a more major nature, if there is a risk of the fire extending or if the scavenge trunk is adjacent to the crankcase with risk of a hot spot developing it sometimes becomes necessary to_______the engineA.stopB.startC.speed upD.slow down
考题
Engine operating conditions may be indicated by the color of the exhaust smoke Black smoke could indicate .A.an insufficient speed droop settingB.an overloaded engineC.clogged drain holes in the oil control ringsD.complete combustion
考题
What would white exhaust smoke from a diesel engine probably mean ________．A.Late fuel injectionB.Excess combustion airC.Dribbling injector tipsD.Excessive lube oil consumption
考题
Which of the following is a slip of tongue A.No cross, no crown．
B.No pains, no gains．
C.No sweat without sweet．
D.No smoke without fire．
考题
单选题If a scavenge fire starts, the engine must be put to “（）” and the fuel must be taken off the cylinders affected by the fire.A
stop engineB
finished with engineC
dead slow aheadD
dead slow astern
考题
单选题The indications of a scavenge fire are excessive black smoke, （） and peeling from scavenge trunking.A
turbo-chargers surgeB
spark seen from the drainsC
paint blisteringD
all above are right
考题
单选题Once a scavenge fire is detected the engine （）.A
will be speeded upB
should be slowed downC
must slow downD
have to be slow down
考题
单选题Black smoke coming from a boiler can be caused by （）.A
low water levelB
high water levelC
excessively high fuel pressureD
low oil temperature
考题
单选题Which of the following would cause a diesel to have black smoke?（）A
leaky injectorB
water in the gasC
too heavy oilD
water in the oil
考题
单选题The straight stream capability of an all-purpose nozzle is used in fighting a class A fire to（）.A
shield fire fighters from radiant heatB
break up burning materialC
get the most water possible on the fireD
drive heat and smoke ahead of the fire fighters
考题
单选题Engine operating conditions may be indicated by the color of the exhaust smoke.Black smoke could indicate（）A
an insufficient speed droop settingB
an overloaded engineC
clogged drain holes in the oil control ringsD
complete combustion
考题
单选题A high-velocity fog stream can be used in fire fighting situations to drive heat and smoke ahead of the fire fighters in a passageway. This technique should only be used when（）.A
using a 2-1/2 inch hoseB
there is an outlet for the smoke and heatC
the fire is totally contained by the ship's structureD
at least two fog streams can be used
考题
单选题You notice smoke coming from an open laundry room doorway．After activating the fire alarm，which of the following would you do FIRST（）.A
Attempt to determine what is burningB
Acquire the nearest self contained breathing apparatusC
Break out the nearest fire hoseD
Wait for the fire team to arrive and assist as directed
考题
单选题A distorted furnace in a fire-tube auxiliary boiler may be the result of （）A
firing for extended periods in the low fire modeB
overheating, due to waterside depositsC
varying the water level above the crown sheetD
carrying excessive alkalinity in the boiler water
考题
单选题Automatic fire dampers in ventilation systems are operated by use of（）.A
remotely operated valvesB
fusible linksC
C02 system pressure switchesD
heat or smoke detectors
考题
单选题Automatic fire dampers in ventilation systems are operated by a（）.A
remote operated valveB
fusible linkC
CO2 system pressure switchD
heat or smoke detector
考题
单选题A smoke _____ system provides families with early warning of fire.A
collectionB
repressionC
detectionD
resonance
考题
单选题Why will a turbocharger diesel engine produce black smoke if excessive additional load is applied too quickly?（）A
Exhaust energy would draw excess airB
The inertia of the turbocharger rotor causes a time lag which delays the turbocharger speed increaseC
Exhaust gas pumping losses are increased due to turbine windageD
Exhaust gas back pressure falls slightly due to increased nozzle action
考题
单选题Indications of （）are loss in power and irregular running of the engine, high exhaust temperatures of corresponding unite, high local temperature in scavenge trunk, surging of turbocharger, and sparks and smoke emitted from scavenge drains.A
a crankcase explosionB
a scavenge fireC
abnormal compression ratio
考题
单选题It is necessary to secure the forced ventilation to a compartment where there is a fire to（）.A
allow the exhaust fans to remove smokeB
extinguish the fire by carbon monoxide smotheringC
prevent additional oxygen from reaching the fireD
protect fire fighting personnel from smoke
考题
单选题If the scavenge fire is of a more major nature, if there is a risk of the fire extending or if the scavenge trunk is adjacent to the crankcase with risk of a hot spot developing it sometimes becomes necessary to （）the engine.A
stopB
startC
speed upD
slow down
考题
单选题Late fuel injection occurring at, or after TDC in a diesel engine is indicated by excessive exhaust smoke and （）A
low exhaust temperatureB
low firing pressureC
fuel knock in each cylinderD
mechanical knock in each cylinder
考题
单选题Once a scavenge fire is detected, fuel should be shut off from the affected cylinders and cylinder lubrication increased （） the risk of seizure.A
to protectB
to guardC
to maximizeD
to minimize
考题
单选题Black smoke coming from a boiler can be caused by （）.A
low water levelB
low oil pressureC
excessively high fuel pressureD
an improper air/fuel ratio
考题
单选题The basic training in fire prevention and fire fighting should include the practical elements which should allow the trainees to acquire the ability to （）.A
use self-contained breathing apparatusB
use various types of portable fire extinguishersC
effect a rescue in a smoke-filled space wearing breathing apparatusD
All of the above
考题
单选题A four-stroke cycle, turbocharged, 1000 horsepower diesel engine has been operating under loadThe load suddenly increases, causing excessive black exhaust smoke, and a rapid rise in the lube oil temperatureIn response to this condition, you should:（）A
reduce loadB
check your exhaustC
adjust cooling water temperatureD
increase lube oil flow
考题
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
热门标签
最新试卷