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）
LFG tank and pipeline maintenance should include ______．
A.Exclusion of all sand and solid matter
B.Cleaning with clean fresh or sea water
C.Examination for fractures and pitting
D.All of the above
参考答案
更多 “ LFG tank and pipeline maintenance should include ______．A.Exclusion of all sand and solid matterB.Cleaning with clean fresh or sea waterC.Examination for fractures and pittingD.All of the above ” 相关考题
考题
Passage TwoQuestions 26 to 30 are based on the following passage.In our day of the automobile and paved highway few people ever encounter quicksand(流沙). Yet quicksand is still common in many pans of the country. It may be more dangerous for being less familiar.Quicksand is usually found along the shores and in the beds of rivers. It is simply sand saturated(使饱和)with water from beneath，as from a spring. The water flowing into the sand separates the grains. The suspended grains give rather easily and a heavy object placed on the surface is likely to sink. How fast it sinks depends on its weight and surface area.How does one detect quicksand? It cannot be done by the eye alone，since sand which looks firm may suddenly collapse and trap anyone who ventures out on it. The only way to be sure is to test the sand before walking on it. For test a probing(探索)pole or long stick should be used. If the pole sinks more than six inches，the sand is probably quicksand.A traveler who stumbles into quicksand will soon sink to the depth of his knees. If he stands still or struggles wildly，he will sink even further. He should at once lie on his back and stretch out his arms. Contrary to popular notion，quicksand does not suck objects down，and will support more weight than water alone. While the trapped person “floats” on the surface of the sand，rescuers should build a platform. with boards or branches. Then they can pull him out slowly.If the trapped person is alone，he can rescue himself. When he is in the floating position，he should begin rolling toward solid ground. Rolling is the only way of getting free. It should be done with frequent rests，so that the trapped person does not tire himself. When he reaches solid ground，he should swing his legs to safety，and quickly scramble out of the quicksand.The main idea of this passage is______.A. that today few people ever encounter quicksandB. that quicksand is still common in many parts of the countryC. that quicksand cannot be detected by the eye aloneD. expressed by none of the above
考题
In fighting a fire in a fuel tank, the FIRST action you should attempt is to _____.A.secure all sources of fresh air to the tankB.begin transferring the fuel to other tanksC.top off the tank to force out all vaporsD.station someone at the fixed CO2 release controls
考题
To determine the pressure and temperature limitations under which LFG is required to be transported on a barge，you should look at the ______.A.Certificate of InspectionB.loading orderC.rules and regulations for tank vesselsD.tankerman's document
考题
What is TRUE of pressure/vacuum valves?A.They are designed to provide for the flow of small volumes of tank atmospheres caused by thermal variations in a cargo tankB.They should operate in advance of the pressure/vacuum breakersC.They should be kept in good working order by regular inspection and cleaningD.All of the above
考题
The amount of LFG that may be loaded into a given tank is determined by ______．A.Checking the loading sheetB.Loading to within 1 percent of outageC.Loading to within 10 percent of the safety relief valve settingD.Filling to the maximum level indicated on the liquid level gaging device
考题
Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE ________．A.Stack weights should be less when using a solid bar lashing as compared to a wire lashingB.Stack heights may be increased when using a solid bar lashingC.Stack heights should be reduced when using a solid bar lashingD.Solid bars should be used for lashing the first tier only，with wire lashings on the higher tier（s）
考题
A company just hired a new plant maintenance manager, and they are concerned about the number of corrupt asset records in the present system. In future they want to prevent this from happening. When implementing the new solution, what is recommended?（）A、All maintenance personnel have full access to all records.B、All maintenance personnel have read-only access to all data. C、Only a very limited number of personnel have full access to static data records, but all maintenance personnel are able to enter work order data.D、Maintenance personnel should not be using the system, and should only write entries on printed work orders and hire input clerks to enter these into the system.
考题
Which two statements are true with respect to the maintenance window？（） .A、 A DBA can enable or disable an individual task in all maintenance windows.B、 A DBA cannot change the duration of the maintenance window after it is created.C、 In case of a long maintenance window，all Automated Maintenance Tasks are restarted every four hours.D、 A DBA can control the percentage of the resource allocated to the Automated Maintenance Tasks in each window
考题
You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a database named DB1 in the instance. You put forward a database maintenance plan. The maintenance plan rebuilds indexes, checks database integrity, writes a report to a text file. Now the company requires that when the maintenance plan executes abnormally, the operators can be notified by an e-mail message. You've been assigned this task. So you have to make modifications on the SQL Server instance. What should you do?（）A、For the SQL Server Agent, you should enable a fail-safe operator B、You should modify the database maintenance plan, making it send an e-mail to the appropriate operators C、You should modify the database maintenance plan, making it include a Notify Operator task that e-mails the appropriate operators. D、You should modify the SQL Server Agent job. The job executes the database maintenance plan to notify the appropriate operators.
考题
单选题A company just hired a new plant maintenance manager, and they are concerned about the number of corrupt asset records in the present system. In future they want to prevent this from happening. When implementing the new solution, what is recommended?（）A
All maintenance personnel have full access to all records.B
All maintenance personnel have read-only access to all data. C
Only a very limited number of personnel have full access to static data records, but all maintenance personnel are able to enter work order data.D
Maintenance personnel should not be using the system, and should only write entries on printed work orders and hire input clerks to enter these into the system.
考题
单选题What additional precautions should be taken when making temporary repairs to a ship that is operating when hydrogen sulfide is present?（）A
Seal off all tank and compartment ventilationB
Remove all bulk materials from the P-tanksC
Provide respiratory protection and monitoringD
All of the above
考题
单选题Which of the following groups should staff accounts be placed in, if the staff is required to perform most but not all maintenance tasks on a Windows PC?（）A
Power UsersB
UserC
AdministratorD
Guest
考题
单选题Which of the actions listed should be taken FIRST to control an oil fire in a fuel oil tank?（）A
Commence draining that tank as quickly as possibleB
Seal off all vents to that tankC
Activate the CO2 system to that tankD
Shut off the steam heating coils
考题
单选题To avoid excessive pressures in the fuel oil filling system during bunkering, you should （）.A
close the tank filling valves quicklyB
top off all tanks at the same timeC
rill completely all tanks to less than 95% fullD
reduce the loading rate when topping off
考题
单选题The amount of LFG that may be loaded into a given tank is determined by（）.A
checking the loading sheetB
loading to within 1 percent of outageC
loading to within 10 percent of the safety relief valve settingD
filling to the maximum level indicated on the liquid level gaging device
考题
单选题LFG tank and pipeline maintenance should include（）.A
exclusion of all sand and solid matterB
cleaning with clean fresh or sea waterC
examination for fractures and pittingD
All of the above
考题
单选题Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE? （）A
Stack weights should be less when using a solid bar lashing as compared to a wire lashingB
Stack heights may be increased when using a solid bar lashingC
Stack heights should be reduced when using a solid bar lashingD
Solid bars should be used for lashing the first tier only，with wire lashings on the higher tier(s)
考题
单选题A combination or all-purpose nozzle produces（）.A
low-velocity fog onlyB
a solid stream onlyC
a solid stream and foamD
a solid stream and fog
考题
单选题Routine maintenance of lead acid batteries should include （）.A
keeping the terminals cleanB
coating cable connections with petroleum jellyC
maintaining a trickle chargeD
All of the above
考题
单选题When fueling has been completed（）.A
the fuel tank fill pipe should be left open to allow vapors to vent from the tankB
the engine should be started immediately to prevent vapor lock in the fuel lineC
all hatches should be opened and all compartments should be ventilatedD
open the fuel line and drain a small amount of gasoline into the bilge to clear the line of sediment
考题
单选题The system will include various （） such as low tank level alarms and remote operation of tank outlet valves in the events of a fire.A
SwitchesB
panelsC
alarm unitsD
safety devices
考题
单选题You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a database named DB1 in the instance. You put forward a database maintenance plan. The maintenance plan rebuilds indexes, checks database integrity, writes a report to a text file. Now the company requires that when the maintenance plan executes abnormally, the operators can be notified by an e-mail message. You've been assigned this task. So you have to make modifications on the SQL Server instance. What should you do?（）A
For the SQL Server Agent, you should enable a fail-safe operator B
You should modify the database maintenance plan, making it send an e-mail to the appropriate operators C
You should modify the database maintenance plan, making it include a Notify Operator task that e-mails the appropriate operators. D
You should modify the SQL Server Agent job. The job executes the database maintenance plan to notify the appropriate operators.
考题
单选题Complete maintenance of electrical motors should include periodic checks for machine （）A
vibrationB
watertight integrityC
speed droopD
reactive power
考题
单选题In fighting a fire in a fuel tank, the FIRST action you should attempt is to （）.A
secure all sources of fresh air to the tankB
begin transferring the fuel to other tanksC
top off the tank to force out all vaporsD
station someone at the fixed CO2 release controls
考题
单选题Routine maintenance on a Central Control Room hermetically sealed air conditioning unit should include （）A
changing the air filterB
recharging the systemC
changing compressor lubricantD
renewing container vacuum
考题
单选题To determine the pressure and temperature limitations under which LFG is required to be transported on a barge，you should look at the（）.A
Certificate of InspectionB
loading orderC
rules and regulations for tank vesselsD
tankerman's document
考题
单选题A rectangular fish tank has a base 2 feet wide and 3 feet long. When the tank is partially filled with water, a solid cube with an edge length of 1 foot is placed in the tank. If no overflow of water from the tank is assumed, by how many inches will the level of the water in the tank rise when the cube becomes completely submerged?A
1/6B
1/2C
2D
3E
4
热门标签
最新试卷
