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
Which of the listed types of starting systems is often used on large, low-speed, direct reversing, main propulsion diesel engines?（）
A
Electric
B
Hydraulic
C
Air
D
All of the above
参考答案
参考解析
解析：
暂无解析
更多 “单选题Which of the listed types of starting systems is often used on large, low-speed, direct reversing, main propulsion diesel engines?（）A ElectricB HydraulicC AirD All of the above” 相关考题
考题
Which of the units listed is used to combust waste in the engine room?A.BoilerB.IncineratorC.Generator
考题
Which of the listed devices may be used as a digital device?A.variable resistorB.diodeC.strain gaugeD.thermistor
考题
Which of the listed devices is used to measure pressure and convert it to an electrical signal?A.TransducerB.ReducerC.TransformerD.Rectifier
考题
Which of the following network cable types is MOST often used in environments where physicalsecurity of the data is the top priority?（）A、UTPB、CoaxialC、Fiber opticD、STP
考题
The Chief Information Officer （CIO） is preparing a briefing about the reliability of their server environment. There is a need to create a report about which systems had unplanned system outages and how often they occurred. What IBM Director tool can be used to create the report？（）A、Capacity ManagerB、Process Management toolC、System Availability toolD、System Reporting tool
考题
Which of the following tools should be used to report current network status and is often used to check the reliability of a network？（）A、 netpmonB、 netstatC、 nfsstatD、 vmstat
考题
单选题Which of the listed chemicals can be routinely used to maintain the hygienic quality of potable water?（）A
Hydrochloric acidB
ChlorineC
Sulfuric acidD
Zinc chromate
考题
单选题Which of the turbo-charging systems listed operates with the least average back pressure in the exhaust manifold?（）A
Constant volumeB
Constant pressureC
Pulse pressureD
Radial flow
考题
单选题Which of the listed bearing types is an example of a solid bearing?（）A
Piston wrist pin bushingB
turbine bearingC
Spring bearingD
Diesel engine main bearing
考题
单选题Which of the listed diesel engine systems is likely to create the problem of a cylinder regularly misfiring?（）A
LubricationB
CoolingC
FuelD
Electric ignition
考题
单选题Which of the following methods is used to prevent throttling of compressed air through the diesel engine air starting valves?（）A
Holding the valve open for a long periodB
Increasing the starting air pressure usedC
Opening the stating air valve quicklyD
Reducing the starting air valve size
考题
单选题Which of the listed devices is used to measure pressure and convert it to an electrical signal?（）A
TransducerB
ReducerC
TransformerD
Rectifier
考题
单选题If a diesel engine runs roughly, which of the systems listed is most likely to be at fault?（）A
FuelB
LubricatingC
CoolingD
Ignition
考题
单选题In order to distribute the side pressures over a wide area of the cylinder walls and liners, which of the listed types of pistons are used in modem low pressure air compressors?（）A
DifferentialB
TrunkC
BarrelD
Valve-in-head
考题
单选题Which of the materials listed is used as the dynamic seal material on mechanical seals installed on most centrifugal pumps used in water service?（）A
CopperB
Copper and carbonC
CarbonD
Bronze
考题
单选题Which of the combustion parameters listed is used in a diesel engine, but NOT related to the injection system?（）A
AtomizationB
MeteringC
Effective strokeD
Penetration
考题
单选题Which of the listed statements is correct concerning refrigeration systems?（）A
Dehydrators must be used continuously in a refrigeration systemB
A 25 ton refrigeration system has the same cooling effect as melting 25 tons of ice in 24 hoursC
A thermostatic expansion valve is used to control refrigerated space temperatureD
The liquid receiver functions to collect and remove non- condensable gases
考题
单选题Which of the following types of motors is often designed for use in correcting power factor?（）A
PolyphaseB
Wound-rotorC
InductionD
Synchronous
考题
单选题Which of the following types of hydraulic pumps would be used in a steering system?（）A
LobeB
ScrewC
Radial pistonD
Volute
考题
单选题Which of the listed types steam traps operates on the principle that hot water flashes to steam when its vapor pressure is rapidly reduced?（）A
Ball floatB
ThermostaticC
BimetallicD
Impulse
考题
单选题Which of the listed types of files is the best for producing a fine finish on metal?（）A
MillB
FloatC
WardingD
Second cut
考题
单选题Which of the devices listed is common to all types of pumps?（）A
A power end and fluid endB
A propeller and educatorC
A volute and impellerD
A turbine and piston
考题
单选题Lubricating oil systems for diesel engine journal bearings are usually lubricated by which of the following types of lubricating oil systems?（）A
SplashB
GravityC
PressureD
Bypass
考题
单选题Computer systems consist of two very different types of elements：Hardware，which includes all the physical things that can be touched and（），which tells thehardware how to do.A
SoftwareB
CoursewareC
OperatingsystemD
I/Odevices
考题
单选题Which of the routine maintenance procedures listed is required for starting air receivers?（）A
over-speedingB
overloadC
low exhaust temperatureD
high crankcase pressure
热门标签
最新试卷