[单项选择]Let H （） the quantity of heat which has been converted into mechanical work.
A. represent
B. represents
C. representing
D. being represented

[单项选择]The quantity or condition which is measured and controlled is known as the （）
A. controlled variable
B. manipulated variable
C. set point
D. control point

[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]You have been towing astern and have just let go the tow.Your deckhands are pulling in and faking the towline by hand on the stern.The most dangerous action to take is to（）.
A. continue ahead at slow speed
B. continue ahead at half speed
C. stop your engines
D. back down on your engines

[单项选择]A carbon dioxide fire extinguisher has been partially discharged, and should be immediately （）.
A. tagged and restowed properly in its rack
B. weighed and the charge loss recorded
C. given to the chief engineer for recharging
D. tagged "empty" and stowed separately from charged extinguishers

[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

[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

[多项选择]The Schuyler and Livingston Iron Works has been working on getting its network security under control. It has set up VPN with IPSec links to its suppliers. It has installed network vulnerability scanners to proactively identify areas of weakness, and it monitors and responds to security events as they occur. It also employs extensive access control lists, stateful firewall implementations, and dedicated firewall appliances. The company has been growing very fast lately and wants to make sure it is up to date on security measures.Which two areas of security would you advise the company to strengthen? （）
A. intrusion protection
B. identity
C. secure connectivity
D. security management

[单项选择]My position has been obtained by（）.
A. astronomical observation
B. hydrographic survey
C. weather prediction
D. current sailing

[单项选择]You board an inflatable liferaft that has been hand launched from a sinking vessel. What should you do first after everyone is onboard the liferaft?（）.
A. Cut the painter
B. Operate the radio equipment
C. Open the equipment pack
D. Ventilate the liferaft of CO₂

[单项选择]He has been a Captain（）1992.
A. after
B. since
C. before
D. for

[单项选择]The system of derricks and winches has been largely replaced on newer ships by cranes（）it is very efficient.
A. when
B. because
C. unless
D. though

[单项选择]No person whose license has been revoked shall be issued another license except upon（）.
A. approval of the Commandant
B. taking a new examination
C. approval of the Officer-in-Charge，Marine Inspection
D. approval of an administrative law judge

[单项选择]A vessel has been equipped with an oil lubricated stern bearing and is undergoing a routine dry-dock.Which of the following inspection should be made when the tail-shaft has been drawn?（）
A. The overall condition of the bearing surface should be examined
B. The shaft liner should be inspected for cracks and tested to insure a tight fit
C. The stern tube should be tested for cracks with dye penetrant
D. all of above

[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]When reentering an engine room that has been flooded with CO₂, the investigating team should initially（）.
A. leave the access door partially open
B. enter from the lowest level
C. enter from the highest level
D. attempt to operate machinery

[单项选择]Fuel has been injected but ignition fails The possible cause may be （）.
A. leaky exhaust valve
B. increased scavenging air temperature
C. engine cylinders not scavenged sufficiently
D. water in the fuel oil

[单项选择]If your passenger vessel has been issued a stability letter，it must be （）.
A. filed in the ship’s office
B. posted in a passenger area
C. posted adjacent to the Certificate of Inspection
D. posted in the pilothouse

[单项选择]If a hydraulic governor has been refilled with oil, the engine should be operated until it reaches normal temperaturethen the air should be purged, and the（）
A. rack position should be adjusted
B. compensating needle valve should be opened fully compensating
C. needle valve should be adjusted to stabilize operation
D. speed limiting device should be adjusted

[单项选择]My position has been obtained （） astronomical observation．
A. with
B. from
C. on
D. by