The fuel supply system to an automatic auxiliary boiler, will be automatically shutdown if the boiler （）

相似题目

• Due to （） action of pistons some relative motion between parts in contact in the coolant supply and return system must occur.

  A . reciprocating B . rotating C . running D . removing

  查看最佳答案

• In a central cooling system, used in some modem ships, sea water is supplied to cool （）which will circulate to other individual cooler, greatly reducing the corrosion problems.

  A . fresh water B . sea water C . cooling oil D . emulsio

  查看最佳答案

• Which method is used to supply inert gas from a flue gas system to the cargo tanks?（）

  A . Exhaust gas pressure from the stack B . High capacity fan C . Inert gas compressor D . Natural aspiratio

  查看最佳答案

• The sequence of parts in a generally used fuel oil supply system for a main engine is （） (1)tanks in the double bottom (2)centrifuges (3)service tank (4)settling tank (5)viscosity regulator

  A . (1)-(2)-(4)-(3)-(5) B . (1)-(4)-(2)-(3)-(5) C . (1)-(3)-(2)-(4)-(5) D . (1)-(5)-(4)-(2)-(3)

  查看最佳答案

• The fuel injection pumps on a diesel engine are controlled by a linkage system attached to the （）

  A . camshaft B . crankshaft C . governor D . flywheel

  查看最佳答案

• The term “proper metering”, as applied to a diesel fuel injection system, can be best defined as （）.

  A . delivering the same quantity of fuel to each cylinder for each power stroke according to engine load B . maintaining the metering adjustment for a reasonable period under all load conditions C . timing fuel injection to obtain maximum power and good fuel economy D . distributing the fuel to all parts of the combustion chamber for proper combustio

  查看最佳答案

• If an air compressor is used to supply compressed air to outlets throughout the engine room and on deck of a vessel, the system is known as the （）.

  A、combustion control air system B、supply air system C、ships service air system D、low pressure deck air system

  查看最佳答案

• Which of the following operations need to be entered on the Oil Record Book Part I? （） (1) Ballast of fuel oil tanks (2) Condition of oil discharge monitoring and control system

  A . （1）only B . （2）only C . both（1）and（2） D . neither（1）nor（2）

  查看最佳答案

• Before shutting off the fuel supply to stop a medium or high–speed diesel engine, why is it necessary to allow the engine to idle for a few minutes?（）

  A . To prevent internal damage form local overheating B . To ensure the fuel nozzles are flushed clean C . To clear the smoke stack D . To let the waste heat boiler reduce its rate of steam generatio

  查看最佳答案

• Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）

  A . double bottom fuel oil tank temperature B . heater supply steam flow C . pressure of the fuel supplied to the burners D . attemperator steam flow in the heater discharge circuit

  查看最佳答案

• （） or air venting arrangement is fitted to the fuel supply passage.

  A . An air pump B . A compressor C . A fuel pump D . A priming

  查看最佳答案

• Diesel powered industrial trucks on a ship that are provided with safeguards to the exhaust，fuel，and electrical systems are designated（）.

  A . DEFE B . DE C . DS D . DES

  查看最佳答案

• Fuel is not supplied to the corresponding cylinders due to （）.

  A . a failure of the motor B . a failure of lubricator C . a failure of cylinder D . a failure of fuel pum

  查看最佳答案

• To avoid excessive pressures in the fuel oil filling system during bunkering, you should （）.

  A . close the tank filling valves quickly B . top off all tanks at the same time C . rill completely all tanks to less than 95% full D . reduce the loading rate when topping off

  查看最佳答案

• The replacement piping for diesel engine high pressure fuel systems must be the same length and diameter as the original piping to （）.

  A . avoid unnecessary pints inventory B . keep torsional vibration constant C . use existing supports and braces D . maintain specified injection characteristic

  查看最佳答案

• If you suspect a diesel engine is misfiring due to air leakage into the fuel system, you should begin looking for the leak at the （）

  A . fuel line connections to cylinder injection valves B . gasket surfaces of the fuel oil filters C . discharge fitting of the fuel injector pumps D . suction side of the fuel oil tra

  查看最佳答案

• When operating the air supply system in a covered lifeboat the（）.

  A . fuel supply valve should be closed B . hatches，doors，and oar ports should be closed C . air cylinder shut-off valve should be closed D . engine should be shut off

  查看最佳答案

• Each inert gas system must be designed to supply the cargo tanks with a gas，or mixture of gasses，that has an oxygen content by volume of（）.

  A . 5% or less B . 10% or less C . 15% or less D . 20% or le

  查看最佳答案

• （） rods are not in proper condition so that too much fuel is supplied to the corresponding cylinder.

  A . Piston B . Sounding C . Regulating D . Connecting

  查看最佳答案

• Fuel injection uses the jet pump system and a Woodward type hydraulic （） is used to control engine speed.

  A . controller B . governor C . instrument D . apparatu

  查看最佳答案

• In a typical fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to （） and heated.

  A . a service tank B . a collecting tank C . a sump D . a settling tank

  查看最佳答案

• The 1982 Oil and Gas Act gives power to permit the disposal of assets held by the Corporation, and the Corporation's statutory monopoly in the supply of gas for fuel purposes so as to permit private companies to compete in this supply.

  A．defers B．curtails C．triggers D．sparks

  查看最佳答案

• When the heavy fuel oil is heated to achieve the viscosity of 10-15 cSt, may occurTo avoid this, a system is used in most occasions.

  A.boiling and cavitations; low temperature B.boiling and cavitations; pressurized C.leaking and boiling; low temperature D.leaking and boiling; pressurized

  查看最佳答案