Before you start an engine in a compartment，it’s MOST important to（）.

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• A diesel engine fails to start because of water in the fuelIn order to start the engine, you should （）?

  A . turn engine with jacking gear B . drain filters and strainers and bleed off water at each injection pump C . use ether to start the engine with blow-down valves open D . blow through the cylinders and fuel lines with a drying agent

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• Open the （）before starting an air compressor.

  A . unload valve B . cooling water C . oil cup D . sum

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• Before using a fixed CO2 system to fight an engine room fire，you must（）.

  A . secure the engine room ventilation B . secure the machinery in the engine room C . evacuate all engine room personnel D . All of the above

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• In an operating diesel engine, which of the following condition is an indication of a leaking air starting valve?（）

  A . noise coming from that air starting valve B . continuous operation of the starting air compressor C . zero air pressure in the air starting system D . overheated starting air pipe to the cylinder head

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• An auxiliary diesel engine may fail to start due to（）

  A . low exhaust back pressure B . high lube oil temperature C . insufficient cranking speed D . excessive fuel atomizatio

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• An auxiliary reservoir for starting auxiliary engines should be kept at （）.

  A . low pressure at all times B . full pressure at all times C . low pressure at intermittence D . full pressure at intermittence

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• Before starting a diesel engine that has an engine driven lube oil pump, the engineer should （）.

  A . open the bypass line B . cut in the lube oil cooler C . pressurize the lube oil system D . top off the expansion tank

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• The minimum speed an engine must attain before ignition can occur depends upon （）.

  A . the type and size of the engine B . the condition of the engine C . ambient temperature D . all of the above

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• You started a long transaction. Before committing， you executed a query on one of the tables currently being modified. You received the following error： ORA-01555： snapshot too old How would you prevent such an error in the future？（）

  A . guarantee undo retention B . add one more redo log group C . size the redo log files appropriately D . size the UNDO tablespace appropriately E . size the SYSTEM tablespace appropriately F . configure an appropriate undo retention interval G . change automatic undo management to manual

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• After the engine is warned, we should（） the turning gear before starting up the engine.

  A . take in B . put in C . take out D . put u

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• You started a long transaction. Before committing， you executed a query on one of the tables currently being modified. You received the following error：  ORA-01555： snapshot too old  How would you prevent such an error in the future？（）

  A . guarantee undo retention B . add one more redo log group C . size the redo log files appropriately D . size the UNDO tablespace appropriately E . size the SYSTEM tablespace appropriately F . configure an appropriate undo retention interval G . change automatic undo management to manual

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• Be sure to make the engine turn by （） before starting and after stopping .

  A . steering gear B . turning gear C . steering wheel D . turning cycle

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• Before starting an air compressor, It should be （）.

  A . unloaded B . primed C . filled with water D . greased

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• The following preparations are essential for any （） of marine diesel engine before it may be started.

  A . doing B . make C . turn D . operating

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• About half an hour before the engine is required, cooling water at （） must be circulated.

  A . more than the working temperature B . less than the working temperature C . the working temperature D . the same as the surrounding temperature

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• Before starting an engine by air, the engine must（）

  A . be turned by a turning gear for at least one minute B . be turned by a turning gear for at least two minutes C . be turned at least one complete turn D . be turned at least two complete tur

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• Diesel engine starting difficulties due to cold intake air temperatures, can be overcome by using a/an（）

  A . increase in starting air pressure B . increase in lube oil viscosity C . compression expansion device D . jacket water heater

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• Which of the following may cause that an engine doesnt run on starting air?（）

  A . too low starting air pressure B . main start valve closed C . neither A nor B D . A and B

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• Before starting the engine the air bottle should be （）.

  A . pumped up B . loaded C . discharged D . opened

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• The diesel engine must be started before it can run by it self For this purpose （） has to be used.

  A . a starting system B . the starting air C . a starting operation D . A, B and C

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• If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.

  A . compression pressures are below normal B . lube oil is diluted with fuel oil C . cranking speed is too low D . exhaust system is partially restricted

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• Before starting a diesel engine, you should always（）

  A . check the pyrometer readings B . check the crankcase oil level C . check the fuel oil strainers D . clean the fuel system

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• After an engine is started you should（）.

  A . increase engine speed to insure adequate flow of oil to all parts of the engine B . pay no attention unless there are unusual noises from the engine C . check operating pressures and temperatures，and check for leaks D . run the engine at idle until the temperature has increased

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• Which of the following may cause that an engine doesnt turn on starting air?（）

  A . too low starting air pressure B . main starting valve closed C . neither A nor B D . A and B

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