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 piston cooling system may employ similar components, except that （） is used instead of a head tank.
A
a sump tank
B
a feed well
C
a double bottom tank
D
a drain tank
参考答案
参考解析
解析：
暂无解析
更多 “单选题The piston cooling system may employ similar components, except that （） is used instead of a head tank.A a sump tankB a feed wellC a double bottom tankD a drain tank” 相关考题
考题
What is head tank in the closed cooling water system used for?A.for the release of air from the cooling waterB.providing expansion room for heated cooling waterC.a place for implementing water and water treatment agentD.all of the above
考题
In the following statements about the principle of the low level controlling, which is WRONG? 0
A.Low level is monitored on the drain tank and header tank.B.If there is high differential the filters pressure across the circulatingpumps is alarmedC.The lubricating oil purifier cannot take oil from the drain tankD.If the sea water pressure falls, this also operates an alarm
考题
Which of the following problems can occur if you continually fail to drain off condensate from a starting air receiver?A.Corrosion and eventual failure of the tankB.Gumming of the tank relief valvesC.Immediate failure of components downstream of the compressed air systemD.Boiling of the water oil mixture as pressure is reduced
考题
Lubrication for the main reduction gears used with diesel engines is usually supplied byA.oil from the main engine sumpB.an independent lube oil systemC.the stern bearing head tankD.the stem bearing sump tank
考题
Because the circulating water is in a closed loop,_______is installed to cater for expansion and contraction of the water at different conditions of operation.A.an expansion jointB.a drain tankC.a head tankD.a contraction tank
考题
_____ allows for expansion and water make up in the water cooling system.A.A top tankB.A head tankC.A head valveD.A drain tank
考题
A crew member reports that the high-pressure alarm light of a low-pressure CO2 fixed fire extinguishing system is illuminated．The most probable cause of this condition would be that ______．A.an air leak has developed in the tankB.the tank cooling system has malfunctionedC.the pilot cylinder discharge valve is leakingD.an excessive amount of insulation has been installed on the tank and piping
考题
水泥涂料用于淡水舱和双层底舱。（）A、Primer is used for sea water tanks and double bottom tanks.B、Cement wash is used for fresh water tanks and double bottom tanks.C、Varnish is used for fresh water tanks and double bottom tanks.D、Bitumen is used for fresh water tanks and double bottom tanks.
考题
单选题In a commonly used fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to （） and heated.A
a service tankB
a settling tankC
an expansion tankD
a double bottom tank
考题
单选题In a typical fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to （） and heated.A
a service tankB
a collecting tankC
a sumpD
a settling tank
考题
单选题What is head tank in the closed cooling water system used for?（）A
for the release of air from the cooling waterB
providing expansion room for heated cooling waterC
a place for implementing water and water treatment agentD
all of the above
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
单选题水泥涂料用于淡水舱和双层底舱。（）A
Primer is used for sea water tanks and double bottom tanks.B
Cement wash is used for fresh water tanks and double bottom tanks.C
Varnish is used for fresh water tanks and double bottom tanks.D
Bitumen is used for fresh water tanks and double bottom tanks.
考题
单选题As to the piston cooling, of the following, which statement is not true?（）A
Because the piston is exposed to very high temperature, it must be cooledB
The lower the piston cooling temperature is, the better it isC
Both water and lube oil can be used as coolantD
One of the piston cooling methods is vibration cooling, with better effect
考题
单选题The outlet from an expansion tank of a closed freshwater cooling system should be piped to the （）.A
cylinder head water outlet headerB
cylinder jacket inlet mainC
heat exchanger inlet connectionD
jacket water pump suction line
考题
单选题（） allows for expansion and water make up in the water cooling system.A
A top tankB
A head tankC
A head valveD
A drain tank
考题
单选题The piston cooling system may employ similar components, except that （） is used instead of a head tank.A
a sump tankB
a feed wellC
a double bottom tankD
a drain tank
考题
单选题The clearance volume for a single stage compressor is defined as the space created between the （）.A
top of the piston and bottom side of head, with the piston at BDCB
piston and head, including the space around the piston to the top of the upper ring and under the valves, with the piston at TDCC
bottom of the piston and bottom side of the head at TDC, regardless of upper ring location and valve placementD
top of the piston and bottom side of the head at TDC as compared to that which exists between the top of the piston and bottom side of head at BDC
考题
单选题A separate piston cooling system is used to limit any contamination （） piston cooling glands（） the piston cooling system only.A
between；toB
either；orC
from；toD
neither；nor
考题
单选题The piston cooling system may employ similar components, except that a drain tank is used instead of a head tank That means this system （）.A
doesnt use a drain tank but a head tankB
uses a drain tank not head tankC
uses a drain tank and a head tankD
uses neither a drain tank nor a head tank
考题
单选题Longitudinal and transverse separtions between the tanks,which are used to prevent liquids from leaking from one double bottom tank into the other ,are called（）.A
double bottomsB
cofferdamC
navigating bridgeD
superstructure
考题
单选题The sequence of parts in a generally used fuel oil supply system for a main engine is （） (1)tanks in the double bottom (2)centrifuges (3)service tank (4)settling tank (5)viscosity regulatorA
(1)-(2)-(4)-(3)-(5)B
(1)-(4)-(2)-(3)-(5)C
(1)-(3)-(2)-(4)-(5)D
(1)-(5)-(4)-(2)-(3)
考题
单选题Lubricating oil for an engine is stored at the bottom of the （）, known as the sump or in a drain tank located beneath the engine.A
sea cheatB
air receiverC
crankcaseD
water box
考题
单选题Which of the following statements describes the function of an expansion tank in a diesel engine cooling system?（）A
Maintains a constant head on the systemB
Reduces the likelihood of air or steam pockets formationC
Provides a low pressure point for the addition of makeup cooling waterD
All of the above
考题
单选题If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.A
loss of suction in the circulating pumpB
leak in the primary cooling systemC
broken raw water pump shaftD
burned or cracked piston in one cylinder
热门标签
最新试卷