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 reservoir, as used in hydraulic systems aboard ship, is used to store hydraulic oilAnother function is to（）
A
act as a shock absorber
B
maintain the stored oil under pressure
C
act as a base or foundation for the power unit
D
eliminate pressure surges in the system
参考答案
参考解析
解析：
暂无解析
更多 “单选题A reservoir, as used in hydraulic systems aboard ship, is used to store hydraulic oilAnother function is to（）A act as a shock absorberB maintain the stored oil under pressureC act as a base or foundation for the power unitD eliminate pressure surges in the system” 相关考题
考题
Among the basic categories of equipment, which of the following are used to allow the hydraulic energy to be controlled?A.hydraulic pumpsB.valvesC.hydraulic cylindersD.hydraulic motors
考题
An electrical device which employs a stationary armature and a rotating electromagnetic field is used aboard as aA.magnetic amplifierB.ship's service alternatorC.three-wire DC generatorD.saturable core reactor
考题
Among the basic categories of equipment, which of the following are used to convert the hydraulic energy into linear motion?A.hydraulic pumpsB.valvesC.hydraulic cylindersD.hydraulic motors
考题
Among the basic categories of equipment, which of the following is used to convert hydraulic energy into continuous rotary motion?A.hydraulic pumpsB.valvesC.hydraulic cylindersD.hydraulic motors
考题
______ play a very important part in hydraulic systems by preventing interaction between different parts of the hydraulic circuit.A.MotorsB.Check valvesC.Safety valvesD.Reducing valves
考题
______ is not usually used in liquid cargo systems．A.Hydraulic drive systemsB.Electric drive systemsC.Steam drive systemsD.Man-powered drive systems
考题
Which statement is TRUE concerning buoyant work vests aboard tankers ________．A.They may be worn while working on deck but not while working over the sideB.They must be used only under supervision of a designated ship's officerC.They will be accepted for up to 10% of the required life preserversD.They may be worn during drills
考题
Which statement is TRUE concerning inert gas systems on tankers ________．A.Flue gases from the ship's boilers are used in some systemsB.The gas is heliumC.Using the system accelerates the rusting of the tanksD.All of the above
考题
Which of the following statements is TRUE regarding automatic identification systems（AIS）________．A.AIS cannot be used to make passing arrangements because the system is not capable of this type of ship-to-ship communicationsB.AIS cannot be used to make passing arrangements because the ship-to-ship text messaging feature is for emergency use onlyC.AIS can be used to make passing arrangements via ship-to-ship text messaging but a vessel operator is not relieved from the requirement to sound whistle signals or make arrangements via bridge-to-bridge radiotelephoneD.AIS can be used to make passing arrangements via ship-to-ship text massaging thus relieving a vessel operator from making such arrangements via bridge-to-bridge radiotelephone or signaling intent to pass via whistle signals
考题
A hydraulic accumulator aboard a ship is designed to ______.A.store fluid under pressureB.act as a fluid reservoirC.provide overpressure reliefD.replenish fluid to a system
考题
单选题If your vessel is equipped with a radiotelephone，what must also be aboard?（）A
Certificate of InspectionB
List of ship stationsC
Copy of ship to shore channelsD
Radio station license
考题
单选题The primary purpose of oil control rings on a diesel piston is to（）A
provide a reservoir for cylinder lubricationB
pump oil into the combustion space for cylinder coolingC
prevent excessive lubricating oil consumptionD
allow hydraulic oil film formation on the cylinder
考题
单选题A carling is used aboard ship（）.A
as a connecting strap between the butted ends of platingB
to stiffen areas under points of great stress between beamsC
to prevent the anchor from fouling when the brake is releasedD
to provide an extra heavy fitting in a heavy lift cargo rig
考题
单选题Which of the following hydraulic systems is not one of the three sub-division of the Hydraulic drive system?（）A
Constant pressure systemB
Variable pressure systemC
Variable displacement systemD
Constant volume system
考题
单选题（） play a very important part in hydraulic systems by preventing interaction between different parts of the hydraulic circuit.A
MotorsB
Check valvesC
Safety valvesD
Reducing valve
考题
单选题Hydraulic pumps most commonly used in steering systems are of the （）.A
lobe typeB
screw typeC
axial piston typeD
volute type
考题
单选题An electrical device which employs a stationary armature and a rotating electromagnetic field is used aboard ship as a （）.A
magnetic amplifierB
ship’s service alternatorC
three-wire DC generatorD
saturable core reactor
考题
单选题A sling is a device used in（）.A
hoisting cargo aboard a vesselB
hoisting personnel aboard a vesselC
securing a small boat to a large vesselD
hoisting the anchor
考题
单选题A hydraulic accumulator aboard a ship is designed to（）.A
store fluid under pressureB
act as a fluid reservoirC
provide overpressure reliefD
replenish fluid to a system
考题
单选题In which of the listed hydraulic systems will the installation of an oil cooler be necessary?（）A
Constant tension mooring winch systemB
Hatch cover systemC
Watertight door systemD
Internal combustion engine hydraulic starter system
考题
单选题Which of the following statements is TRUE regarding automatic identification systems (AIS) ? （）A
AIS may be used to make passing arrangements via ship-to-ship text messaging thus relieving a vessel operator from sounding whistle signals or making contact via radiotelephoneB
AIS may be used to make passing arrangements via ship-to-ship text messaging but a vessel operator is still required to sound whistle signals unless the arrangement is made via radiotelephoneC
AIS cannot be used to make passing arrangements because the system does not have the ability to communicate from ship-to-ship in this mannerD
AIS cannot be used to make passing arrangements because the use of the ship-to-ship text messaging feature in this way is prohibited
考题
单选题All of the following operating characteristics are listed on the name-plates of motors used aboard ship except the（）A
temperature riseB
input kilowattsC
horsepowerD
operating voltage
考题
单选题A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by （）.A
the four-way control valve failing to shiftB
the bleeder valve sticking in the open positionC
cold hydraulic fluidD
a clogged air vent falter on the oil reservoir
考题
单选题Compensated flow control or constant flow valves are used in hydraulic systems to（）A
compensate for major leaks in the systemB
maintain the original fluid viscosityC
allow for changes in pressure and temperature within the systemD
assure constant fluid temperature
考题
单选题Which of the following statements describes the functions of a reservoir used in a hydraulic system?（）A
Dissipate heatB
Trap foreign matterC
Separate air from the oilD
All of the above
考题
单选题Your assigned emergency station aboard ship can be found on the ship’s （）A
station billB
clearance papersC
certificate of inspectionD
permit to proceed
考题
单选题A carling is used aboard ship（）.A
as a connecting strap between the butted ends of platingB
to stiffen areas under points of great stress between beamsC
to prevent the anchor from fouling when the brake is releasedD
to provide an extra heavy fitting in a lift cargo released
热门标签
最新试卷