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
A diesel engine fails to start because of water in the fuelIn order to start the engine, you should ()?
A
turn engine with jacking gear
B
drain filters and strainers and bleed off water at each injection pump
C
use ether to start the engine with blow-down valves open
D
blow through the cylinders and fuel lines with a drying agent
参考答案
参考解析
解析:
暂无解析
更多 “单选题A diesel engine fails to start because of water in the fuelIn order to start the engine, you should ()?A turn engine with jacking gearB drain filters and strainers and bleed off water at each injection pumpC use ether to start the engine with blow-down valves openD blow through the cylinders and fuel lines with a drying agent” 相关考题
考题
The cooling water of the diesel engine should be treated with chemical, because it contains .A.alkaliB.acidityC.salinityD.impurity
考题
If a diesel engine turned over freely but failed to start, the cause could be ________.A.water in the fuelB.cold lube oilC.excessive starting air pressureD.excessive fuel pressure
考题
单选题If a diesel engine were running at 20% overload with a smoky exhaust, you should()A
stop the engine immediately to prevent damageB
increase lube oil pressureC
slow the engine allowing it to gradually coolD
decrease the cooling water it temperature to the water jacket
考题
单选题Water accumulating in the crankcase of a diesel engine could indicate()A
a cracked cylinder linerB
excessive water in the fuelC
a leaking intercoolerD
excessive moisture in the scavenge air
考题
单选题Stating a large propulsion diesel engine using diesel fuel during cold weather conditions can be made easier by ()A
increasing the quantity of starting airB
increasing the lube oil pressureC
heating the engine fuel supplyD
heating the engine jacket water
考题
单选题The device allowing for the change in volume of the cooling water in a propulsion diesel engine closed cooling system is the ().A
fresh water expansion tankB
sea water expansion tankC
thermostatic expansion valveD
jacket water cooler accumulator
考题
单选题A three-way thermostatic control valve regulates the diesel engine cooling water temperature by passing a portion of the water ().A
around the engineB
around the coolerC
to the expansion tankD
overboard
考题
单选题Due to excessive water in the fuel, a diesel engine fails to startBefore the engine can be started, the water must be removed from the ().A
fuel pumpsB
cylindersC
fuel strainersD
all of above
考题
单选题Why the cooling water of the diesel engine should be treated? Because the()A
Cooling water is alkalescenceB
cooling water is acidityC
cooling water has salinityD
cooling water has impurity
考题
单选题If a diesel engine fails to start,one of the likely causes is ()A
low compression temperatureB
low ambient air pressureC
high lube oil pump pressureD
high fuel oil booster pump pressure
考题
单选题A diesel engine fails to start due to excessive water in the fuelBefore the engine can be started, the water should be removed from the()A
fuel linesB
lube oil filterC
crank case pumpD
rocker arm reservoir
考题
单选题The expansion tank for a diesel engine closed cooling system is designed to maintain a constant head on the system and ().A
reduce water temperatureB
reduce water turbulenceC
provide an air cushionD
allow for an increase in water volume as the engine warms up
考题
单选题Diesel engine air start system check valves are opened by ()A
an air start camB
cylinder compression pressureC
starting air pressureD
valve springs
考题
单选题The highest pressure in any closed diesel engine freshwater cooling system is at the ().A
jacket water outletB
expansion tank inletC
heat exchanger inletD
cooling water pump outlet
考题
单选题The cooling water of the diesel engine should be treated, because it has()A
alkale scenceB
acidityC
salinityD
impurity
考题
单选题A diesel engine could fail to start because of ()A
incorrect injection timingB
low exhaust back pressureC
floating exhaust valvesD
excessive cranking speed
考题
单选题In a diesel engine cooling system, the high temperature alarm contact maker will be activated on excessively high water discharge temperature from the ()A
raw water pump dischargeB
expansion tank outletC
cooling water heat exchangerD
outlet engine jacket water outlet
考题
单选题If cooling water flow through the after-cooler is interrupted,the power output of a turbocharged diesel engine will drop because the ()A
turbocharger will stallB
density of the air charge will decreaseC
scavenge effect will increaseD
exhaust pressure will increase
考题
单选题Which of the following problems can cause fluctuating pressures in the closed cooling system of a main propulsion diesel engine?()A
Defective temperature controls in the systemB
Cavitation in the cooling water pumpC
Opened vent in the cooling systemD
Restricted water passages in the engine
考题
单选题If the jacket water temperature rises rapidly above normal in a diesel engine, you should FIRST ()A
place standby cooler in operationB
reduce engine loadC
check thermostatic valveD
clean sea water strainer
考题
单选题Temperature control valves installed in the jacket cooling water system of a diesel engine modulates the rate of water flow through the ().A
cooling water pumpB
nozzle cooling passagesC
cylinder jacketsD
heat exchanger
考题
单选题In a diesel engine cooling water system, a pH of 60 indicates a/an ().A
slightly acidic conditionB
slightly alkaline conditionC
overtreatment of waterD
neutral condition of water
考题
单选题A four-stroke/cycle, 1000horsepower diesel engine fails to start at normal cranking speed with normal fuel pressure and ambient temperatureThe reason for the failure could be()A
glazed liners or pistonsB
high lube oil pressureC
excessive compression ratioD
worn valve seats and valves
考题
单选题In the process of the stand-by, warm-up the engine usually through give preheat of which parts of the diesel engine?()A
cooling water of the cooling systemB
fuel of the FO systemC
LO of the LO systemD
cooling water of the cooling system and LO of the LO system
考题
单选题High diesel engine cooling water temperatures can be caused by ().A
a worn water pumpB
not enough coolantC
air in the cooling systemD
all of the above
热门标签
最新试卷