An overspeed safety device is usually fitted to a generator engine for （） in the event of overspeed.

A . after torque causes line pull to exceed the rated capacity of the winch B . before the line pull reaches the rated capacity of the winch C . when the line pull reaches the breaking strength of the fall D . before the safe working load of the fall is reached

A . Fan B . Pump C . Winch D . Machine tool

A . sysdumpdev -l B . dumpmgr -ALl C . lsdev -Cc dump D . diag -dump=show

A . the chief engineer must be informed at first B . the captain must be informed at first C . it must be taken by the duty engineer D . the generator engine must be stopped

A . Transducer B . Reducer C . Transformer D . Rectifier

A . the reinforcement of the aft transverse watertight bulkhead B . the double bottom structure in way of the foremost cargo hold C . the introduction of a more rigorous survey regime and greater attention to operating procedures D . introduction of new and improved desig

A . drain water from the air receiver B . drain water from the cylinders C . delay the compression process until the motor is up to speed D . check pump alignment

A . sysdumpdev -l B . dumpmgr -ALL C . lsdev -Cc dump D . diag -dump=show

A . speed of the vessel over the ground or through the water B . distance to the next port C . time of the next navigational satellite pass D . None of the above

A . when they receive a special token B . when there is a carrier C . when they detect no other devices are sending D . when the medium is idle E . when the server grants acce

A . low voltage trip B . reverse power trip C . damage to windings D . excessive exhaust temperature

A . passively listens to network traffic B . is an active device in the traffic path C . has a permissive interface that is used to monitor networks D . traffic arrives on one IPS interface and exits on another

A .  It resembles a Layer 2 bridge. B .  Traffic flow through the IPS resembles traffic flow through a Layer 3 router. C .  Inline interfaces which have no IP addresses cannot be detected. D .  Malicious packets that have been detected are allowed to pass through， but all subsequent traffic is blocked.

A . Frequency meter B . Ohmmeter C . Induction voltage regulator D . Current transformer governor

A . An SVI is normally created for the default VLAN （VLAN1） to permit remote switchadministration B . Multiple SVIs can be associated with a VLAN C . SVI is another name for a routed port D . An SVI is created by entering the no switchport command in interface configuration mode E . An SVI provides a default gateway for a VLAN

A . relieve excess fuel oil pressure during the “off” fire cycle B . admit water to the dry pipe C . throttle the forced draft fan output for proper combustion D . reduce excess steam pressure in the boiler

A . limit B . monitor C . modulator D . interlock

A . They should wear safety shoes B . They should wear ear protection C . They should not wear jewelry D . All of the above

A .  passively listens to network traffic B .  is an active device in the traffic path C .  has a permissive interface that is used to monitor networks D .  traffic arrives on one IPS interface and exits on another

A . It resembles a Layer 2 bridge. B . Traffic flow through the IPS resembles traffic flow through a Layer 3 router. C . Inline interfaces which have no IP addresses cannot be detected. D . Malicious packets that have been detected are allowed to pass through, but all subsequent traffic is blocked.

A .  amplifier B .  attenuator C .  regenerator D .  light emitter E .  optical switch F .  optical receiver G .  fiber-optic cable

A. Right B. Wrong C. Not mentioned