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FOR GRAD COMP 4

FOR GRAD COMP 4
48問 • 2年前
  • ROEL VINCENT CATUBUAN
    • 通報

    問題一覧

  • 1

    Which of the following is not a part of marine diesel engine?

    carburator

  • 2

    What is not a safety item found on a diesel engine?

    HT cooling water low temp alarm

  • 3

    Which of the listed problem would be indicated by an accumulation of water in one cylinder, in addtion to the crankcase of an idle diesel engine

    cracked cylinder liner

  • 4

    A flash type of distilling plant is more efficient than a high pressure evaporator as __________ I. vaporization of the feed water occurs in a vacuum II. Boiling of feed water occurs only once on the tube surfaces

    I only

  • 5

    In purifier, which of the following causes the oil to flow through the sludge discharge outlet

    insufficient sealing water

  • 6

    What migt be the cause of marine diesel engine having excessive consumption of lubricating oil?

    Excessive piston ring wear

  • 7

    Why are non return valves fitted on the discharge side of boiler feed water pumps?

    to prevent back flow

  • 8

    How do we remove sludge deposits inside the boiler?

    by blowdown

  • 9

    Which of the following maintains the low pressure in the chamber and remove any gases released from the seawater of a flash evaporator?

    pre-heater

  • 10

    A change in engine speed is required before a governor is able to make a corrective movement of fuel rack. This aspect of governing is commonly expressed as a percent and is known as

    governor sensitivity

  • 11

    When shall both power units of the steering system be used?

    When navigation demands special attention

  • 12

    On the main engine lubricating oil system where are the filters normally found?

    before the pump

  • 13

    When there is formation of frost in the evaporator coils it will

    reduce efficiency of refrigerating

  • 14

    Which of the following heat exchanger will NOT be commonly found onboard?

    fuel oil cooler

  • 15

    Instead of using piston rods and crossheads, smaller diesel engines normally have

    rocker arm and push rods

  • 16

    You are operating a main propulsion diesel engine at a constant load when the jacket temp begins to rise. This could be cause by

    a piston about to seize

  • 17

    A liquid line solenoid valve controls refrigerant flow to the evaporator by

    fully opening or closing

  • 18

    Which will initiate the shutdown of the boiler when it has detected no flame in the durnace during initial ignition?

    Flame Eye

  • 19

    What removes the carbon build up clinging on the outside of the tubes in EGB?

    Soot Blower

  • 20

    Which of the following methods applies to how vacuum is created by a jet pump or an eductor?

    a rapidly moving stream of fluid passing through a nozzle

  • 21

    What is the cause if a motor driven air compressor repeatedly blows fuses upon starting?

    compressor starting against full load

  • 22

    A warmer than normal compressor suction line might be caused by

    insufficient refrigerant

  • 23

    Why must a boiler be purged during start up?

    to avoid backfire/explosion

  • 24

    The trust shaft is connected to a _______ which comes in parts and joined together using solid forged couplings

    itermediate shaft

  • 25

    Which of the following will not cause the main engine to stop?

    HT cooling water low temp

  • 26

    Your main propulsion boilers are equipped with a two element feedwater regulating control system. While on watch, you are required to respond to a 'slow' bell from full sea speed. Under these conditions the automatic feedwater regulator will __

    closed down on the feedwater valve due to the decrease in steam flow demand

  • 27

    The color of the exhaust from a diesel engine should be __

    clear

  • 28

    Which of the following transmits the engine power and motion drive to the propeller?

    tail shaft

  • 29

    Which of the followingis reduced as air is compressed?

    volume

  • 30

    Which of the conditions listed would indicate water carryover to a turbine>

    noise and vibration in the turbine

  • 31

    Which of the following is specifically used to lubricate the piston rings of the main engine?

    cylinder oil

  • 32

    Which of the following diesel engine components is responsible for increasing the density of the air before it enters the cylinders?

    air cooler

  • 33

    Which of the following pumps maintain the vacuum condition of the fresh water generator?

    ejector pump

  • 34

    Which of the following given enables the bowl speed to increase gradually during start-up of the purifier?

    centrifugal clutch

  • 35

    Which of the following is usually fitted to the A-frame to allow access to the crosshead, main and crankpin bearings?

    crankcase door

  • 36

    What safety device is fitted on the Main Engine Starting air system which protects the system in case of excessive pressure due to air line explosion?

    Bursting disc

  • 37

    Which condition will occur if the foundation bolts of a reciprocating air compressor are loose>

    the compressor will vibrate

  • 38

    Steam line water hammer can be best prevented by __

    keeping lines drained and insulated

  • 39

    What kind of pump is used on the lube oil system>

    positive displacement pump

  • 40

    Which of the following diesel engine components can be found only on a 2 stroke cycle engine>

    crosshead

  • 41

    A spring-loaded relief valve is located on some lube oil filters in full flow systems to __

    bypass the filter should it become clogged

  • 42

    After starting a diesel engine, which of the listed operating conditions should be checked first?

    lube oil pressure

  • 43

    What is used to circulate the cooling water on the main engine?

    jacket cooling water pump

  • 44

    Which describes the measurement in millimeters or inches, of the inside diameter of the cylinder?

    bore

  • 45

    A distinguishing feature of an eductor, when compared to other pumps is the

    lack of moving parts

  • 46

    Which of the listed pumps is not a positive displacement pump?

    centrifugal

  • 47

    Which of the following types of boiler can raise steam pressure the fastest?

    water-tube boiler

  • 48

    Which part of the engine receives and transmits its full working power and is subjected to bending, torsion and wear stress

    crankshaft

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    問題一覧

  • 1

    Which of the following is not a part of marine diesel engine?

    carburator

  • 2

    What is not a safety item found on a diesel engine?

    HT cooling water low temp alarm

  • 3

    Which of the listed problem would be indicated by an accumulation of water in one cylinder, in addtion to the crankcase of an idle diesel engine

    cracked cylinder liner

  • 4

    A flash type of distilling plant is more efficient than a high pressure evaporator as __________ I. vaporization of the feed water occurs in a vacuum II. Boiling of feed water occurs only once on the tube surfaces

    I only

  • 5

    In purifier, which of the following causes the oil to flow through the sludge discharge outlet

    insufficient sealing water

  • 6

    What migt be the cause of marine diesel engine having excessive consumption of lubricating oil?

    Excessive piston ring wear

  • 7

    Why are non return valves fitted on the discharge side of boiler feed water pumps?

    to prevent back flow

  • 8

    How do we remove sludge deposits inside the boiler?

    by blowdown

  • 9

    Which of the following maintains the low pressure in the chamber and remove any gases released from the seawater of a flash evaporator?

    pre-heater

  • 10

    A change in engine speed is required before a governor is able to make a corrective movement of fuel rack. This aspect of governing is commonly expressed as a percent and is known as

    governor sensitivity

  • 11

    When shall both power units of the steering system be used?

    When navigation demands special attention

  • 12

    On the main engine lubricating oil system where are the filters normally found?

    before the pump

  • 13

    When there is formation of frost in the evaporator coils it will

    reduce efficiency of refrigerating

  • 14

    Which of the following heat exchanger will NOT be commonly found onboard?

    fuel oil cooler

  • 15

    Instead of using piston rods and crossheads, smaller diesel engines normally have

    rocker arm and push rods

  • 16

    You are operating a main propulsion diesel engine at a constant load when the jacket temp begins to rise. This could be cause by

    a piston about to seize

  • 17

    A liquid line solenoid valve controls refrigerant flow to the evaporator by

    fully opening or closing

  • 18

    Which will initiate the shutdown of the boiler when it has detected no flame in the durnace during initial ignition?

    Flame Eye

  • 19

    What removes the carbon build up clinging on the outside of the tubes in EGB?

    Soot Blower

  • 20

    Which of the following methods applies to how vacuum is created by a jet pump or an eductor?

    a rapidly moving stream of fluid passing through a nozzle

  • 21

    What is the cause if a motor driven air compressor repeatedly blows fuses upon starting?

    compressor starting against full load

  • 22

    A warmer than normal compressor suction line might be caused by

    insufficient refrigerant

  • 23

    Why must a boiler be purged during start up?

    to avoid backfire/explosion

  • 24

    The trust shaft is connected to a _______ which comes in parts and joined together using solid forged couplings

    itermediate shaft

  • 25

    Which of the following will not cause the main engine to stop?

    HT cooling water low temp

  • 26

    Your main propulsion boilers are equipped with a two element feedwater regulating control system. While on watch, you are required to respond to a 'slow' bell from full sea speed. Under these conditions the automatic feedwater regulator will __

    closed down on the feedwater valve due to the decrease in steam flow demand

  • 27

    The color of the exhaust from a diesel engine should be __

    clear

  • 28

    Which of the following transmits the engine power and motion drive to the propeller?

    tail shaft

  • 29

    Which of the followingis reduced as air is compressed?

    volume

  • 30

    Which of the conditions listed would indicate water carryover to a turbine>

    noise and vibration in the turbine

  • 31

    Which of the following is specifically used to lubricate the piston rings of the main engine?

    cylinder oil

  • 32

    Which of the following diesel engine components is responsible for increasing the density of the air before it enters the cylinders?

    air cooler

  • 33

    Which of the following pumps maintain the vacuum condition of the fresh water generator?

    ejector pump

  • 34

    Which of the following given enables the bowl speed to increase gradually during start-up of the purifier?

    centrifugal clutch

  • 35

    Which of the following is usually fitted to the A-frame to allow access to the crosshead, main and crankpin bearings?

    crankcase door

  • 36

    What safety device is fitted on the Main Engine Starting air system which protects the system in case of excessive pressure due to air line explosion?

    Bursting disc

  • 37

    Which condition will occur if the foundation bolts of a reciprocating air compressor are loose>

    the compressor will vibrate

  • 38

    Steam line water hammer can be best prevented by __

    keeping lines drained and insulated

  • 39

    What kind of pump is used on the lube oil system>

    positive displacement pump

  • 40

    Which of the following diesel engine components can be found only on a 2 stroke cycle engine>

    crosshead

  • 41

    A spring-loaded relief valve is located on some lube oil filters in full flow systems to __

    bypass the filter should it become clogged

  • 42

    After starting a diesel engine, which of the listed operating conditions should be checked first?

    lube oil pressure

  • 43

    What is used to circulate the cooling water on the main engine?

    jacket cooling water pump

  • 44

    Which describes the measurement in millimeters or inches, of the inside diameter of the cylinder?

    bore

  • 45

    A distinguishing feature of an eductor, when compared to other pumps is the

    lack of moving parts

  • 46

    Which of the listed pumps is not a positive displacement pump?

    centrifugal

  • 47

    Which of the following types of boiler can raise steam pressure the fastest?

    water-tube boiler

  • 48

    Which part of the engine receives and transmits its full working power and is subjected to bending, torsion and wear stress

    crankshaft