Which statement concerning the carriage of containers is TRUE?（）.

A . Do not exceed rated load capacity of crane and container spreader or slings B . During any cargo handling operation，the safety of personnel is paramount C . Cargo handlers must be outfitted with adequate protection from personal injury D . All the above

A . Raising the antenna height increases the radar range B . The ability of radar to detect objects is unaffected by weather conditions C . Radar bearings are less accurate than radar ranges D . Radar should be checked regularly during clear weather to ensure that it is operating properly

A . Set extends Collection. B . All methods defined in Set are also defined in Collection. C . List extends Collection. D . All methods defined in List are also defined in Collection. E . Map extends Collection.

A . The catenary in a hawser should be sufficient so that the hawser just touches the bottom B . The hawser is of sufficient length for towing when taut between tug and tow C . Increasing speed usually increases the catenary in the hawser D . Shortening the tow hawser generally decreases the maneuverability of the tug

A . All switch statements must have a default label. B . There must be exactly one label for each code segment in a switch statement. C . The keyword continue can never occur within the body of a switch statement. D . No case label may follow a default label within a single switch statement. E . A character literal can be used as a value for a case label.

A . Each compulsory vessel must carry at least two licensed GMDSS Radio Operators at all times while at sea B . Each compulsory vessel must carry at least two licensed Radio Operators at all times while at sea and may elect to carry a GMDSS Radio Maintainer as well C . Communications involving safety of life at sea do not have to be logged as long as the compulsory vessel was not involved in such communications D . While at sea，adjustments to，and the maintaining of，GMDSS equipment may be performed by the GMDSS Radio operator as long as the work is supervised by an onboard licensed GMDSS Radio Maintainer

A . It cannot be used in all parts of the world B . There are 12 functioning GPS satellites at present C . It may be suspended without warning D . Two position lines are used to give a 2D fix

A . When any vessel fails to understand the intentions of an approaching vessel she must sound the danger signal B . Only the stand-on vessel can sound the danger signal C . Distress signals may be used in place of the danger signal D . The danger signal consists of 4 or more short blasts of the whistle

A . Cargoes are any type of goods transported by any type of ships B . Cargoes are goods transported in bulk C . Cargoes usually include goods transported in bulk and in containers D . Cargoes are usually packaged in container

A . It allows ITCM to send multiple upstream packets in one single large burst. B . It reduces upstream data throughput. C . It can be enabled/disabled from CMTS on per upstream port basis if desired D . Concatenation activity on an interface can be checked by the show controller counters command

A . They must be released by freeing a safety shackle B . They should not be released until the boat is in lowering position C . They may be adjusted by a turnbuckle D . They are normally used only with radial davit

A . Upon bootup，a port transitions from blocking to forwarding because it assumes itself as root. B . Upon bootup，a port transitions from blocking to listening because it assumes itself as root. C . Upon bootup，a port transitions from listening to forwarding because it assumes itself as root. D . If a forwarding port receives no BPDUs by the max_age time limit， it will transition to listening. E . If a forwarding port receives an inferior BPDU， it will transition to listening. F . If a blocked port receives no BPDUs by the max_age time limit， it will transition to listening.

A . All engines，motors，fans，etc. should be shut down when fueling B . All windows，doors，hatches，etc. should be closed C . A fire extinguisher should be kept nearby D . Fuel tanks should be topped off with no room for expansio

A . The light comes on at sunset B . There is an emergency light if the main light is extinguished C . The height of the light is 24 feet D . The tower is painted with black and white stripe

A . Sweat damage in containers is unusual due to the small enclosed volume of air B . In general，containerized hygroscopic cargoes are the only ones subject to sweat damage C . Containers should be ventilated，dehumidified，or the contents physically protected against sweat damage D . Sweat damage is not a problem except in insulated and refrigerated container

A . Each pluggable database (PDB) has its own set of background processes. B . A PDB can have a private temp tablespace. C . PDBs can share the sysaux tablespace. D . Log switches occur only at the multitenant container database (CDB) level. E . Different PDBs can have different default block sizes. F . PDBs share a common system tablespace. G . Instance recovery is always performed at the CDB level.

A . A vessel which cannot avoid a close-quarters situation with a vessel forward of her beam shall reduce her speed to bare steerageway B . A vessel which hears a fog signal forward of her beam shall stop her engines C . A vessel which hears a fog signal forward of the beam shall navigate with caution D . If a vessel determines by radar that a close-quarters situation is developing，she shall take avoiding action in ample time

A . A higher interleave depth provides more protection from burst of noise on the HFC network B . Higher interleave depth increase downstream latency C . Lower interleave depth cause some packet loss on typical HFC networks D . None ofthe above

A . The edge routers can use any locally configured IPv6 address. B . Hosts and routers inside a 6to4 site will need a special code. C . An edge router must use IPv6 address of 2002::/16 in its prefix. D . IPv4 traffic is encapsulated with an IPv6 header.

A . They occur when the Sun is at minimum declination north or south B . They occur when the Moon is at maximum declination north or south C . The difference in height between consecutive high or low tides is at a minimum D . They are used as the basis for the vulgar establishment of the port

A .  NAT provides 1 to manyaddress mapping. B .  NAT provides 1 to 1 address mapping. C .  NAT is only useful forTCP/UDP and ICMP traffic. D .  NAT can be used for all IP traffic.

A . It is a sailing maneuver which brings the vessel's head through the wind B . It connects the boom to the mast and allows the boom to swing freely C . It is a sailing condition where there is a loss of air flow over the sails D . None of the above

A . They occur only at quadrature B . They occur when the Moon is nearest the Earth C . They cause diurnal tides to become mixed D . They have a decreased range from normal

A．He studies sleepwalking for at least ten years. B．He concludes that sleepwalkers are totally asleep in their sensory area. C．He maintains that it is a mistaken belief that sleepwalkers are immune to injury. D．He is the leading expert on sleep in America.