The reversing cams of some four-stroke/cycle diesel engines are brought into position by （）

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• We took usual steps:sounding the depth，reversing and stopping engine，paying out anchor and 60 fathoms of chain cable in the depth of 12 fathoms．The operation above is（）.

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• Cooling water pumps driven by direct reversing diesel engines are usually of the straight impeller vane type pump with a concentric housing to（）

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• 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 cylinder

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• In a radial piston pump, reversal and control of fluid flow are accomplished by moving the （）.

  A、central valve B、radial plunger C、floating ring D、cylinder body

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• The engine is reversed by axial displacement of the camshafts In order for this to be carried out, the cams are （） with inclined transition faces.

  A . lathed B . shaped C . shrunk D . developed

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• How can you reverse the effects of an ALTER DISKGROUP ... DROP DISK command if it has not yetcompleted?（）

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• How can you reverse the effects of an ALTER DISKGROUP ... DROP DISK command if it has already completed？（）  

  A .  Issue the ALTER DISKGROUP ... ADD DISK command. B .  Issue the ALTER DISKGROUP ... UNDROP DISKS command.P.... DROP DISK CANCEL command. C .  Issue the ALTER DISKGROU D .  Retrieve the disk from the Recycle Bin after the operation completes.

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• Which of the listed types of starting systems is often used on large, low-speed, direct reversing, main propulsion diesel engines?（）

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• A large two-stroke/cycle direct reversing diesel engine is to be reversedPrior to the admission of starting air you must （）

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• While underway, which of the following would be the FIRST step in reversing a direct reversing large, low-speed, main propulsion, diesel engine?（）

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• How can you reverse the effects of an ALTER DISKGROUP ... DROP DISK command if it has alreadycompleted?（）

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• In “Ticket, Please”, What does Annie’s act on John’s back in a reversal of the traditional position suggest?

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• The sentence that reversion is the movement of Dao means that things always turn to its opposite when they reach the extreme.

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• The total amount of heat added to a closed system executing the reversible, isothermal process shown below is given by: A) Qin = T （）

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• The Museum of London exhibition includes some of the goods sold by the movement.

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• Which of the following devices are protected from being motorized by a reverse-power relay？

  A.Alternators B.Wave guides C.Exciters D.Amplidynes

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• There is a reversible reaction at equilibrium. Which of the following statement is true？

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