更多"Which precaution should be taken wh"的相关试题:
[单项选择]Which action should be taken when an auxiliary boiler in is operation?（）
A. Clean all electrical connections
B. Lift the relief valves by hand
C. Inspect and clean all solenoid valves
D. Inspect for oil and water leaks
[单项选择]What additional precautions should be taken when making temporary repairs to a ship that is operating when hydrogen sulfide is present?（）
A. Seal off all tank and compartment ventilation
B. Remove all bulk materials from the P-tanks
C. Provide respiratory protection and monitoring
D. All of the above
[单项选择]Which step should be taken，if possible，when the vessel must be abandoned because of a distress situation（）.
A. Alert the Coast Guard by using the survival craft's portable INMARSAT unit
B. Program the SART and EPIRB to transmit the vessel's location and situation
C. Place the SART and EPIRB in the“ON”position and secure them to the survival craft
D. No additional steps are needed as the SART and EPIRB will both automatically float free and operate properly
[单项选择]After abandoning ship which action should be taken IMMEDIATELY upon entering a liferaft?（）
A. Open equipment pack
B. Issue anti-seasickness medicine
C. Cut painter and clear the ship
D. Dry the liferaft floor and inflate
[单项选择]Which of the following actions should be taken if during a routine maintenance inspection of a centrifugal pump, localized scoring on a pump shaft sleeve is detected?（）
A. Correct the cause of the scoring and repair the sleeve or replace with a new one
B. Reassemble the unit and provide more water leak off for proper lubrication
C. Check for parallel alignment of the sleeve radial faces to the sleeve bores
D. Reassemble the unit and adjust the governor to obtain a slower speed
[单项选择]Which of the following problems should be taken when cleaning the air filter on a diesel engine equipped with a turbocharger?（）
A. Reduce engine speed to idle before removing the filter
B. Soak the dirty filter in kerosene only
C. Blow out the air inlet with compressed air
D. Cover the air inlet after removing the filter
[单项选择]Which of the following actions should be taken by the engine room watch when the general alarm is sounded continuously?（）
A. The fire pump should be started
B. The boiler rims should be secured
C. The fixed CO2 system should be initiated into action
D. The engine room ventilation should be secured
[单项选择]Which of the listed precautions should be taken when cleaning the internals of a motor with compressed air?（）
A. Open the machine on both ends so as to allow the air and dust to escape
B. Be certain that the circuit breaker is opened and tagged on the feeder panel
C. Be certain that the air is clean and as dry as possible
D. All of the above
[单项选择]Which of the actions listed should be taken FIRST to control an oil fire in a fuel oil tank?（）
A. Commence draining that tank as quickly as possible
B. Seal off all vents to that tank
C. Activate the CO2 system to that tank
D. Shut off the steam heating coils
[单项选择]Which action should be taken on receipt of a GMDSS distress alert（）.
A. Read the display screen and/or printout
B. Silence the alarm
C. Listen for any follow up voice/telex transmission on the appropriate frequency
D. All of the above
[单项选择]Which action must be taken when an individual cargo tank is closed off from the inert gas system by the tank isolation valve?（）
A. The tank must be gas freed
B. The tank must be ballasted
C. The tank must be vented to the atmosphere
D. The bypass valve must also be closed
[单项选择]Which of the actions listed should be taken by the engineer on watch when the general alarm is sounded continuously for 10 seconds?（）
A. Engine room ventilation should be started
B. Main engines should be secured
C. The fire pump should be started
D. The fixed CO2 system should be activated
[单项选择]Which step is NOT generally taken when gas-freeing a tank?（）.
A. Washing the tank interior with sea water
B. Application of degreasing solvents
C. Removal of corrosion products and sludge
D. Fresh air ventilation
[单项选择]Which of the following element(s) should be taken into account in the preparation of the “Cargo Securing Manual”? （）
A. Duration of the voyage
B. Types of cargo units and vehicles to be carried
C. Weight of cargo units and vehicles
D. All of the above
[单项选择]Which procedure should be followed when individuals are rescued in cold climates and suffer from hypothermia?（）
A. Give them brandy
B. Keep them in motion
C. Immerse them in a warm bath (105°F，40°C)
D. Cover them with an electric blanket set for maximum temperature
[单项选择]Which element(s) should be taken into account in the preparation of the “Cargo Securing Manual”?（）
A. Weight of the vehicles
B. Geographical area of the voyage
C. Dynamic forces under adverse weather conditions
D. All of the above
[单项选择]Which IPsec security protocol should be used when confidentiality is required？（）
A. AH
B. MB5
C. PSK
D. ESP
