更多"The system of derricks and winches "的相关试题:
[单项选择]The bilge system has been performing well; however, the aft starboard engine room bilgewell suddenly fails to be pumped outWhich of the following should be done first to determine the cause?（）
A. Open the bilge pump for inspection
B. Remove each of the manifold valves
C. Remove only the manifold valve to the affected bilge-well
D. Attempt to pump out another bilge well to determine if the entire system is affected
[单项选择]Your ARPA has been tracking a target and has generated the targets course and speed.The radar did not receive a target echo on its last two scans due to the weather.What should you expect under these circumstances（）.
A. The ARPA will generate data as if the target was still being tracked by radar
B. The ARPA will give an audible and/or visual lost target alarm
C. The ARPA will generate data based on sea return echoes from the vicinity where the target was lost
D. The ARPA has lost all memory of the target and must recompute the target data
[单项选择]The ventilation system of your ship has fire dampers restrained by fusible links. Which statement is TRUE? （）
A. Fusible links must be replaced if a damper is activated
B. Fusible links are tested by applying a source of heat to them
C. Fusible links must be replaced at every inspection for certification
D. A fusible link will automatically open after a fire is extinguished and reset the damper
[单项选择]Using an inert gas system on a tanker has which advantage(s)? （）
A. Provides for faster loading
B. Lowers oxygen content in the tank
C. Provides better fuel economy
D. All of the above
[单项选择]The starting air system usually has （） to prevent starting if anything is not in order.
A. drain cocks
B. vent valves
C. counteracts
D. interlocks
[单项选择]The existing terrestrial radio system has a number of basic flaws which（）.
A. can be overcome by using traditional techniques
B. cannot be overcome by satellite system
C. can be overcome by satellite and digital techniques
D. cannot be tackled by any modern system
[单项选择]The Inmarsat system has five major components, they are:（）.
A. Space segment, NCC, RCC, SES and CES
B. Space Segment, a satellite system, C system, NCC and NCS
C. Space Segment, NCC, NCS,CES and SES
D. A system, C system, satellite system, earth stations and NCS
[单项选择]The INMARSAT system has five major components, they are:（）
A. Space Segment, NCC, RCC, SES, and CES
B. Space Segment, a satellite system, C system, NCC and NCS
C. Space Segment, NCC, NCS, CES and SES
D. A system, C system, satellite system, earth stations and NCS
[单项选择]When fueling has been completed（）.
A. the fuel tank fill pipe should be left open to allow vapors to vent from the tank
B. the engine should be started immediately to prevent vapor lock in the fuel line
C. all hatches should be opened and all compartments should be ventilated
D. open the fuel line and drain a small amount of gasoline into the bilge to clear the line of sediment
[单项选择]The discussion has been（）until Monday.
A. put up with
B. put off
C. put out
D. put of
[单项选择]EIGRP has been configured to operate over Frame Relay multipoint connections. What should the bandwidth command be set to?（）
A. the CIR rate of the lowest speed connection multiplied by the num ber of circuits
B. the CIR rate of the lowest speed connection
C. the CIR rate of the highest speed connection
D. the sum of all the CIRs divided by the number of connections
[单项选择]A Cisco router has been configured with the following command:IP nat pool nat-test 192.168.6.10 192.168.6.20 netmask 255.255.255.0his is an example of what type of NAT?（）
A. Static NAT
B. Dynamic NAT
C. Dynamic NAT with overload
D. Port Address Translation
E. None of the above
[多项选择]the network administrator has been asked to give reasons for moving from ipv4 to ipv6. what are two valid reasons for adopting ipv6 over ipv4?（）
A. telnet access does not require a password
B. nat
C. no broadcast
D. chanage of destination address in the ipv6 header
E. chanage of source address in the ipv6 header
F. autoconfiguration
[单项选择]My position has been obtained by（）.
A. astronomical observation
B. hydrographic survey
C. weather prediction
D. current sailing
