更多“Auxiliary diesel engines can be automatically shut down as a”相关问题
  • 第1题:

    单选题
    Scuffed cylinder liner wearing surfaces in a diesel engines can result from ()
    A

    starting the engine while hot

    B

    knurling the piston skirt

    C

    operating the engine overheated

    D

    scuff resistant piston rings


    正确答案: D
    解析: 暂无解析

  • 第2题:

    单选题
    Fuel oil contamination of an auxiliary diesel engine lube oil can result in()
    A

    an increased flash point

    B

    higher lube oil pressures

    C

    an increased viscosity

    D

    lower lube oil pressures


    正确答案: D
    解析: 暂无解析

  • 第3题:

    单选题
    The majority of medium speed and high speed marine diesel engines for main or auxiliary drive operate on the () cycle.
    A

    two-stroke

    B

    four-stoke

    C

    long-stroke

    D

    short-stroke


    正确答案: B
    解析: 暂无解析

  • 第4题:

    单选题
    Diesel engines are considered safer than gasoline engines because().
    A

    they are more heavily built

    B

    the fuel used is less volatile

    C

    they can be easily reversed

    D

    they operate at a lower speed


    正确答案: B
    解析: 暂无解析

  • 第5题:

    单选题
    An emergency diesel generator should automatically shut down in the event of ()
    A

    dangerous over-speeding

    B

    a loss of lube oil pressure

    C

    activation of the fixed CO2 system for the emergency generator space

    D

    all of the above


    正确答案: B
    解析: 暂无解析

  • 第6题:

    单选题
    Electrically operated safety devices on auxiliary diesel engines function to stop the engine by ().
    A

    increasing the volume of intake air

    B

    shutting off the fuel supply

    C

    increasing the engine back pressure

    D

    over-speeding the engine


    正确答案: A
    解析: 暂无解析

  • 第7题:

    单选题
    Exhaust pipes for separate diesel engines can be combined only when ()
    A

    space limitations prevent separately run pipes

    B

    the engines are small auxiliary units

    C

    they are arranged to prevent gas backflow to each engine

    D

    a waste heat boiler is installed


    正确答案: D
    解析: 暂无解析

  • 第8题:

    单选题
    The booster pump, which supplies diesel oil to() , should have a possibility of being powered by compressed air or by emergency power.
    A

    the main engines

    B

    the auxiliary engines

    C

    the emergency generator engine

    D

    the auxiliary engines and the main engine(s)


    正确答案: C
    解析: 暂无解析

  • 第9题:

    单选题
    An automated diesel engine should normally shut down due to ()
    A

    low lube oil temperature

    B

    high ambient air temperature

    C

    low tube oil pressure

    D

    high exhaust system back pressure


    正确答案: C
    解析: 暂无解析

  • 第10题:

    单选题
    In diesel engines designed with a crosshead, the motion of the piston rod can be described as ().
    A

    reciprocating at the piston pin, rotary at the crank pin

    B

    reciprocating at the crank pin, rotary at the piston pin

    C

    straight reciprocation

    D

    straight rotation


    正确答案: D
    解析: 暂无解析

  • 第11题:

    单选题
    Pistons of marine medium speed diesel engines may be made of () in order to keep the weight down for balancing purpose at high speed.
    A

    lead

    B

    forged steel

    C

    alloy steel

    D

    aluminum alloy


    正确答案: A
    解析: 暂无解析

  • 第12题:

    单选题
    An electrically driven automatically operating auxiliary blower is provided for slow speed and () of a low speed diesel engine.
    A

    manoeuvring operations

    B

    bad combustion

    C

    cooling

    D

    mooring trial


    正确答案: A
    解析: 暂无解析

  • 第13题:

    单选题
    Clogged or partially obstructed exhaust ports on a diesel engine can cause()
    A

    over-speeding of the engine

    B

    failure of the engine to shut down

    C

    no effect of engine mounting bolts

    D

    high exhaust temperatures


    正确答案: B
    解析: 暂无解析

  • 第14题:

    单选题
    Scuffed cylinder liner wearing surfaces in a diesel engines can result from ()
    A

    chromium plating piston rings

    B

    knurling the piston skirt

    C

    extended maximum power operation

    D

    applying load to a cold diesel engine


    正确答案: D
    解析: 暂无解析

  • 第15题:

    单选题
    You have three production databases, HRDB, FINDB, and ORGDB, that use the same ASM instance. At the end of the day, you execute the following command on the ASM instance to shut down: SQL> shutdown immediate; What is the result of executing this command?()
    A

    All the instances, including the ASM instance, are shut down in the ABORT mode

    B

    The ASM instance is shut down, but the other instances are still running 

    C

    The ASM instance is still functional, but the other instances are shut down 

    D

    All the instances, including the ASM instance, are shut down in the IMMEDIATE mode. 

    E

    HRDB, FINDB, and ORGDB instances are shut down in the ABORT mode and the ASM instance is shut down in the IMMEDIATE mode 

    F

    HRDB, FINDB, and ORGDB instances are shut down in the NORMAL mode and the ASM instance is shut down in the IMMEDIATE mode


    正确答案: A
    解析: 暂无解析

  • 第16题:

    单选题
    (), so they are widely used on board ship nowadays.
    A

    Diesel engines have more advantages in comparison with gasoline engines

    B

    Diesel engines have more advantages in comparison to gasoline engines

    C

    Gasoline engines have more advantages in comparison with diesel engines

    D

    Gasoline engines have more advantages in comparison to diesel engines


    正确答案: D
    解析: 暂无解析

  • 第17题:

    单选题
    High exhaust temperature and black smoke exhausting from an auxiliary diesel engine can be caused by ().
    A

    engine overload

    B

    low combustion temperature

    C

    plugged fuel nozzle holes

    D

    excessive compression pressure


    正确答案: C
    解析: 暂无解析

  • 第18题:

    单选题
    When there is a flame failure in an automatically fired auxiliary boiler, the ().
    A

    air supply is shut off

    B

    fuel supply is shut off

    C

    water supply is shut off

    D

    safety valve lifts


    正确答案: A
    解析: 暂无解析

  • 第19题:

    单选题
    Excessive vibration of an automatically fired auxiliary boiler can be caused by ()
    A

    air or water in the furnace

    B

    combustion pulses

    C

    fuel oil pump failure

    D

    flame failure


    正确答案: D
    解析: 暂无解析

  • 第20题:

    多选题
    Which two statements regarding the Wireless LAN Solution Engine (WLSE) are true?()
    A

    To support fault and policy reporting,the WLSE requires a Wireless Control System (WCS).

    B

    When WLSE detects an AP failure,it automatically increases the power and cell coverage of nearbyAPs.

    C

    WLSE requires the 2700 location appliance to offer location tracking.

    D

    WLSE can locate rogue APs and automatically shut them down.

    E

    WLSE configuration is done using the command line interface (CLI) or a WEB based template.


    正确答案: E,A
    解析: 暂无解析

  • 第21题:

    单选题
    The amount of chloride content in the water of an auxiliary boiler can be reduced by()
    A

    adding hydrazine

    B

    blowing down the boiler

    C

    adding phenolphthalein

    D

    adding a sulfite chloride scavenger


    正确答案: D
    解析: 暂无解析

  • 第22题:

    单选题
    Before being shut down, a diesel engine should idle a few minutes in orderto ()
    A

    prevent governor surging at shutdown

    B

    make sure the fuel nozzles are flushed clean

    C

    prevent pressure buildup in the fuel lines

    D

    prevent damage from localized overheating


    正确答案: D
    解析: 暂无解析

  • 第23题:

    单选题
    Flame failure in an automatically fired auxiliary boiler can from a/an ()
    A

    incorrect electrode setting

    B

    incorrect nozzle position

    C

    clogged fuel nozzle

    D

    broken high tension lead


    正确答案: D
    解析: 暂无解析