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
During maneuvering operations for a direct reversing large, low-speed, main propulsion diesel engine, which of the following actions is used to stop the shaft from turning prior to reversing the engine rotation?（）
A
Flywheel inertia
B
Admission of starting air
C
The way of the vessel
D
securing of fuel to the cylinders
参考答案
参考解析
解析：
暂无解析
更多 “单选题During maneuvering operations for a direct reversing large, low-speed, main propulsion diesel engine, which of the following actions is used to stop the shaft from turning prior to reversing the engine rotation?（）A Flywheel inertiaB Admission of starting airC The way of the vesselD securing of fuel to the cylinders” 相关考题
考题
Which two client requests are captured during database replay Capture?()
A. Flashback queriesB. Shared server requestsC. Login and logoff activities of sessionsD. Direct path load of data from external files by using utilities such as SQL *loaderE. Data definition language (DDL) and data manipulation language (DML) operations
考题
View the Exhibit for some of the parameter settings. You start a session and issue the following command:SQLCREATE INDEX emp_ename ON emp(ename) TABLESPACE users INVISIBLE;What is the outcome of the above command?（）A. The index is not used by the optimizer but is maintained during DML operations.B. The index is not used by the optimizer and is not maintained during DML operations.C. The index is used by the optimizer only if a hint is specified in the query statement and is maintained during DML operations.D. The index is used by the optimizer only if a hint is specified in the query statement but is not maintained during DML operations.
考题
Which two client requests are captured during database replay Capture?() (Choose two)
A. Flashback queriesB. Shared server requestsC. Login and logoff activities of sessionsD. Direct path load of data from external files by using utilities such as SQL *loaderE. Data definition language (DDL) and data manipulation language (DML) operations
考题
The period at high or low tide during which there is no change in the height of the water is called the ______.A.range of the tideB.plane of the tideC.stand of the tideD.reversing of the tide
考题
In terms of vessel manning，a watch is the ______.A.direct performance of deck or engine operations in a scheduled and fixed rotationB.performance of maintenance work necessary for the vessel's safe operation，on a daily basisC.performance of lookout dutiesD.direct performance of cargo loading and discharge operations only
考题
Which safety precaution（s）should be observed during crane operations ________．A.Checking for proper lifting from beneath the load during cargo operationsB.Using the proper slings or other lifting devices during cargo operationsC.Relaying communications to port agents on the pier during cargo hoistsD.All of the above
考题
Which two client requests are captured during database replay Capture?（）A、Flashback queriesB、Shared server requestsC、Login and logoff activities of sessionsD、Direct path load of data from external files by using utilities such as SQL *loaderE、Data definition language (DDL) and data manipulation language (DML) operations
考题
In a store based on the consumer direct model， which roles have the ability to change shipping preferences and tax settings？（）A、SellerB、Operations ManagerC、Product ManagerD、Category ManagerE、Customer Service Supervisor
考题
Which statements are true regarding table compression？（）A、 It saves disk space and reduces memory usage.B、 It saves disk space but has no effect on memory usage.C、 It incurs extra CPU overhead during DML as well as direct loading operations.D、 It incurs extra CPU overhead during DML but not direct loading operations.E、 It requires uncompress operation during I/O.
考题
Which two client requests are captured during database replay Capture?（） (Choose two)A、Flashback queriesB、Shared server requestsC、Login and logoff activities of sessionsD、Direct path load of data from external files by using utilities such as SQL *loaderE、Data definition language (DDL) and data manipulation language (DML) operations
考题
单选题The rate of cylinder lubricating oil metered to each cylinder of a large low-speed main propulsion diesel engine is （）A
the same, whether at sea, or during maneuveringB
adjusted during each hour of operation while at constant RPMC
higher at sea than while maneuveringD
lower at sea than while maneuvering
考题
多选题Which statements are true regarding table compression? （）(Choose all that apply.)AIt saves disk space and reduces memory usage.BIt saves disk space but has no effect on memory usage.CIt incurs extra CPU overhead during DML as well as direct loading operations.DIt incurs extra CPU overhead during DML but not direct loading operations.EIt requires uncompress operation during I/O.
考题
单选题While underway, which of the following would be the FIRST step in reversing a direct reversing large, low-speed, main propulsion, diesel engine?（）A
Manually trip the over-speed deviceB
Interrupt the fuel flow to the engineC
Disengage the safety interlockD
Slide the camshaft to the neutral position
考题
单选题During which condition should the operator of a pedestal crane shutdown operations?（）A
LightningB
High windsC
Fire aboardD
All of the above
考题
单选题In order to reverse the rotation of a two-stroke/cycle loop scavenged, direct reversing, propulsion diesel engine, the cam positions must be changed for the （）.A
starting air and fuel pumpsB
piston cooling pumpsC
exhaust valvesD
all of the above
考题
单选题Cooling water pumps driven by direct reversing diesel engines are usually of the straight impeller vane type pump with a concentric housing to（）A
facilitate bi-directional operationB
provide the greatest pump efficiencyC
prevent pump clogging from marine growthD
prevent cavitation at the pump outlet
考题
单选题During large storms, when waves crash against the beach, large amounts of sand is suspended in the water and may drift with the current.A
waves crash against the beach, large amounts of sand is suspendedB
the beach is crashed against by waves, large amounts of sand are suspendedC
the beach is crashed against by waves suspending large amounts of sandD
waves crash against the beach, large amounts of sand are suspendedE
waves crash against the beach, the suspending of large amounts of sand is
考题
单选题The temperature of the fuel oil received during bunkering operation is critical in determining the （）A
expansion space to leave in a tankB
flash point at which the fuel will burnC
temperature to which the fuel must be heatedD
rate at which the fuel can be pumped during transfer operations
考题
单选题A large two-stroke/cycle direct reversing diesel engine is to be reversedPrior to the admission of starting air you must （）A
line up the engine fore restarting with light diesel oilB
reposition the fuel injection camC
change the intake and exhaust valve cam positionsD
place the starting cam in the intermediate position
考题
单选题Check our website for ______ information regarding flight schedules during irregular airline operations.A
almostB
quiteC
a lotD
more
考题
多选题Which statements are true regarding table compression？（）AIt saves disk space and reduces memory usage.BIt saves disk space but has no effect on memory usage.CIt incurs extra CPU overhead during DML as well as direct loading operations.DIt incurs extra CPU overhead during DML but not direct loading operations.EIt requires uncompress operation during I/O.
考题
单选题During transfer operations，a quantity of propylamine spills on deck. According to the Chemical Data Guide，the correct procedure would be to（）.A
immediately flush the spill with large quantities of fresh waterB
cover the contaminated surface with soda-ash-soaked lime solutionC
add sodium bisulfate on the contaminated surface and spray it down with waterD
move to a position upwind of the spill and allow the product to boil off
考题
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
考题
单选题The temperature of the fuel oil received during bunkering operations is critical in determining the（）A
expansion space to leave in a tankB
flash point at which the fuel will burnC
temperature to which the fuel must be heatedD
rate at which the fuel can be pumped during transfer operations
考题
单选题opes or wires attached to derricks to prevent them from swinging during cargo handling operations are（）.A
PreventersB
Side ropesC
StaysD
Guide lines
考题
单选题When the engine room is put in standby condition, the engineer in charge of the watch need not to（）A
ensure all machinery which may be used during maneuvering is in readyB
ensure an adequate reserve of power is available for steering gear and other requirementsC
keep the main propulsion unit controls continuously attended when in the manual mode of operationD
ensure all machinery which may be used during maneuvering is running stably
考题
单选题According to the Robinson Graph, suddenly astern maneuvering of main engine during navigating will cause（）A
rapid reduction of ship’s friction forceB
shaft system over mechanical loadC
sharp growth of the torque of diesel engineD
propeller torque change along J=0 curve
热门标签
最新试卷
