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发布时间:2023-10-24 06:20:24

[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

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[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 warming the parts of the main engine is ()
A. to reduce heat stress
B. to reduce low temperature corrosion
C. to improve firing and starting performance
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[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
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D. This aids SAR authorities in tracking a vessel's position by satellite
[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
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[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
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[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
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[单项选择]What purpose does a bridge fitting serve when lashing containers?().
A. Ties a container stack to the deck
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[单项选择]For what purpose would using a Lambert conformal chart be more convenient than using a Mercator?()
A. Plotting radio bearings over a long distance
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C. Measuring rhumb line distances
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[单项选择]What is the purpose of the equalizing beam aboard a crane vessel().
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B. It is required to“twin-up”30-ton pedestal cranes
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[单项选择]The main purpose of the piston oil scraper rings is to ().
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[单项选择]What indicates a dual purpose buoy? ()
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[单项选择]What is the purpose using the traceroute command?()
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[单项选择]What is the purpose of IGMP in a multicast implementation?()
A. it is not used in multicast
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[单项选择]What is the purpose of the command shown below vtp password Fl0r1da()。
A. It is used to validate the sources of VTP advertisements sent between switches.
B. It is used to access the VTP server to make changes to the VTP configuration.
C. It allows two VTP servers to exist in the same domain, each configured with different passwords.
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[单项选择]What is the purpose of the cisco Vlan Trunking protocol?()
A. to provide a mechanism to dynamically assign vlan membership to switch ports
B. to allow traffic to be carried from multiple vlans over a single link between switches
C. to allow native vlan information to be carried over a trunk link
D. to provide a mechanism to manually assign vlan membership to switch ports
E. to allow for managing the additions,deletions,and changes of vlans between switchs

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