更多"The main purpose of warming the par"的相关试题:
[单项选择]The main purpose of changing main engine to electronic controlled is not to（）
A. control fuel injection time more precisely
B. control fuel injection rate more precisely
C. meet the environmental requirements
D. meet high engine speed requirements
[单项选择]The purpose of a main switchboard circuit breakers reverse-power trip is to （）.
A. prevent main circuit overload
B. protect the circuit breaker blowout coil
C. prevent alternator motorization
D. prevent low voltage tripout
[单项选择]The main purpose of an electric space heater installed in a large AC generator is to （）
A. prevent the windings from becoming brittle
B. prevent moisture from condensing in the windings during shutdown
C. prevent acidic pitting of the slip rings
D. keep the lube oil warm for quick starting
[单项选择]The main purpose of inspection for a running diesel engine is（）
A. testing for the mechanical load and the thermal load
B. inspecting thermal and mechanical condition of the engine
C. inspecting each system and exhaust temperature
D. testing for compress pressure and explosion pressure
[单项选择]The main purpose of starting the diesel engine on air briefly is（）
A. to inspect if the cylinder has the water leakage
B. to expel out the residual water/gas/oil from the cylinder
C. to check if fuel supply is normal
D. A and B
[单项选择]What is the main purpose of dunnage（）.
A. To act as ballast for light vessels
B. To provide ventilation and drainage for cargo
C. To secure the tarpaulins in place
D. To support weakened bulkheads
[单项选择]The main purpose of the piston oil scraper rings is to （）.
A. seal the space between the piston and the liner
B. reduce the amount of lube oil burned in the combustion chamber
C. transmit heat from the piston to the cylinder liner
D. damp out fluctuations of the piston side thrust
[单项选择]The main moving parts of a diesel engine consist of the （） and the pistons.
A. bedplate, connecting rods
B. crankshaft, the connecting rods
C. frames, crossheads
D. crankshaft, the cylinder
[单项选择]The purpose of an oil mist detector in a main propulsion diesel engine is to warn of （）
A. excessive mist density in the crankcases
B. excessively high crankcase vacuum
C. excessively high bearing temperature
D. excessive carbon buildup in the lube oil
[单项选择]The main purpose of port State control is not to（）
A. prevent an unsafe ship proceeding to sea
B. prevent a ship threatening the marine environment
C. fine the ships
D. confirm a safe sailing
[名词解释]General purpose registers
[单项选择]The most effective warming treatment for a crew member suffering from hypothermia is（）.
A. running or jumping to create heat
B. lying in the sun
C. a warm water bath
D. mouth-to-mouth resuscitation
[单项选择]The principal purpose of magnetic compass adjustment is to（）.
A. reduce the variation as much as possible
B. reduce the deviation as much as possible
C. reduce the magnetic dip as much as possible
D. allow the compass bowl to swing freely on its gimbals
[单项选择]The purpose of PSC is （）
A. to check and inspect foreign ships
B. to verify the condition of a ship in compliance with requirements of international conventions
C. to fine ships
D. to detain ships
[单项选择]The principal purpose of adjustment of the magnetic compass is to eliminate（）as far as possible.
A. variation
B. compass error
C. deviation
D. earth‟s magnetic force
[单项选择]What is the fundamental purpose for imposing radio silence? （）
A. To ensure that interference to proprietary communications is minimized
B. To ensure that only voice communications can be effected on the distress frequency or channel
C. To ensure that a distressed vessel will have a "window" twice each hour for transmitting routine messages
D. To ensure that interference on a particular frequency or channel to communications concerning emergency traffic is minimized
[单项选择]What is the primary purpose for Digital Selective Calling (DSC)?（）
A. DSC provides reception of weather and navigational warnings plus search and rescue information
B. DSC provides low-cost，routine communications for the vessel operator
C. DSC is to be used for transmitting and receiving distress alerts to and from other ships or coast radio stations via radio
D. This aids SAR authorities in tracking a vessel's position by satellite
