In the event of a flame failure in an auxiliary water-tube boiler, you must（）

A . stop valves B . non-return valves C . quick closing valves D . relief valve

A . Use the CO system and evacuate the engine room B . Use the fire main system and evacuate the engine room C . Evacuate the engine room and use the CO system D . Evacuate the engine room and use the fire main system

A . water in the fuel oil B . broken high tension leads C . incorrect electrode setting D . full fuel pressure at the nozzle

A . convection B . conduction C . radiation D . ventilatio

A . cutting power off the engine B . increasing the fuel pump setting C . braking the crankshaft D . stabilizing the ship speed

A . Use the C0 system and evacuate the engine room B . Use the fire main system and evacuate the engine room C . Evacuate the engine room and use the C0 system D . Evacuate the engine room and use the fire main system

A . Reverse current protection B . Reverse power protection C . Synchronising device D . Frequency meter

A . no combustion B . deposits in the fuel C . excessive air in the fuel D . cold fuel oil

A . Officer in Charge Marine Inspection B . The person who caused the casualty C . The company man D . The owner

A . Switches B . panels C . alarm units D . safety device

A . listening for gist B . listening for specific information C . listening for structure D . listening for vocabulary

A . Crankshaft revolution B . Type of engine (diesel or gasoline) C . Distance a piston travels during a stroke D . Number of pisto

A . using the DS GUI， step through Real Time Manager， Copy Services， Create custom scripts； actions and event conditions can be defined that triggerthe script； there is no need for a password B . create a shell script usingdscli commands； trigger the script from the operating system， and call the script using the -pwd option with the password C . create a password file； create a shell script using dscli commands； trigger the script from the operating system D . create a password file； create a shell script usingdscli commands； trigger the script from the operating system； call the dscli script with the dscli -script

A .  The current connections are rerouted via the backup GSS B .  Secondary GSS cannot be used to configure the GSS cluster C .  All remaining GSSs in the cluster continue responding to any new queries D .  All records in the GSS database are flushed and reconstructed again using a new master GSS

A . Exhaust and scavenging B . Scavenging and compression C . Ignition and expansion D . Exhaust and compressio

With his father away on night duty at a local factory, Glenn was worried about the safety of his mother, his sister Karen, 14 and his 12-year-old brother Todd. He ran downstairs through the smoke filled house to push and pull at Karen and Todd until they sat up. Then he helped each one through the house to the safety of the garden. There, his sister and brother, taking short and quick breaths and coughing, collapsed on the lawn. The nine-year-old raced back into the house and upstairs to his mother's room. He found it impossible to wake her up. Mrs. Kreamer, a victim of the smoke, was unconscious, and there was nobody to help Glenn carry her to the garden. But the boy remained calm and, as a fireman said later, "acted with all the self-control of a trained adult." On the bedroom telephone, luckily still wording, Glenn called his father and, leaving Mr. Kreamer to telephone the fire brigade and ambulance service, got on with the task of saving his mother. First he filled a bucket with water from the bathroom and threw water over his mother and her bed. Then, with a wet cloth around his head he went back to the garden. He could hear the fire engine coming up, but how would the firemen find his mother in the smoke-filled house where flames had almost swallowed up the ground floor？ Grasping firmly a ball of string from the garage, Glenn raced back into the house and dashed upstairs to his mother's room. Tying one end of the string to her hand he ran back, laying out the string as he went, through the hall and back out into the garden. Minutes later he was telling fire chief John Coughlan: "The string will lead you to mother." Mrs. Kreamer was carried to safety as the flames were breaking through her bedroom floor. Why did Glenn run downstairs first？ A．He wanted to find out what was happening. B．He was worded about his mother's safety. C．He wanted to save his sister and brother. D．He went to see if his father had come back from work.

In four-stroke diesel engine, the cycle of events is completed in () of crankshaft. A.one revolution B.two revolutions C.four revolutions

A．distant B．slim C．unlikely D．narrow

A．A.The purchase of equipment . B．B.The investment of additional cash in the business by the owner. C．C.The death of a key manager. D．D.The sale of equipment .

A．FL 200 B．FL 240. C．FL250.