更多"Which of the following actions shou"的相关试题:
[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 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 following steps should normally be taken first by those who have boarded a liferaft in an emergency situation?()
A. Ration food and water supplies
B. Search for survivors
C. Determine position and closest point of land
D. Check pyrotechnic supplies
[单项选择]Which of the following operating procedures should be carried out immediately after any diesel engine is started?()
A. Take all exhaust temperature reading
B. Check the sump oil level
C. Verify proper lube oil pressure
D. All of the above
[单项选择]Which of the following actions are stated in the correct order prior to loading or discharging cargo on a Ro-Ro vessel? ()
A. Lower the stern ramp,raise/open the stern door,turn on ventilation for cargo holds
B. Turn on ventilation for cargo holds,raise/open the stern door,lower the stern ramp
C. Turn on ventilation for cargo holds,lower the stern ramp,raise/open the stern door
D. Raise/open the stern door,lower the stern ramp,turn on ventilation for cargo holds
[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 of the following relationships should occur between the temperature developed in a combustion space, and the compression ratio of the engine?()
A. Higher compression ratios create higher temperature
B. Higher temperatures create higher compression ratios
C. low temperatures create higher compression ratios
D. Higher compression ratios create low temperatures
[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 of the following methods is normally used to control the temperature of air distributed from individual cooling coils in an air conditioning system using a chilled water circulation system?()
A. A room thermostat activates an electric heater at each individual chilled air outlet when necessary
B. Varying the number of passes the air makes across the coils
C. Varying the temperature of the water through the coils
D. Varying the quantity of water flowing through the coils
[单项选择]Which of the following precautions should always be carried out in dry dock?()
A. Liquids should never be transferred between tanks without consulting the dock master
B. If sea valves have been disassembled, all bonnets must be checked for leakage when the ship is re-floated
C. Before re-floating, all sea chest strainers should be verified as having been replaced
D. All of the above
[单项选择]Which of the following procedures should be carried out when a large, low-speed, diesel engine is operated with one cylinder secured?()
A. Lubrication to the defective cylinder should be increased
B. Cooling water temperature to the engine should be increased
C. Only the turbocharger speed should be reduced
D. Engine speed should be reduced
[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 step should normally be taken FIRST by those who have boarded a liferaft in an emergency?()
A. Ration food and water supplies
B. Take anti-seasickness pills,if available
C. Determine position and closest point of land
D. Check pyrotechnic supplies
[单项选择]Which of the following should not be paid attetion to as to accommodation for seafarers?()
A. The size of rooms and other accommodation spaces
B. communication
C. Heating and ventilation
D. Noise and vibration and other ambient factors
[单项选择]Which of the following should always be checked prior to starting a diesel engine?()
A. Air filters
B. Fuel oil strainers
C. Crank case oil level
D. Pyrometer readings
[单项选择]Which of the following should be recorded in Oil Record Book Part I (machinery space operation) ?()
A. Non automatic discharge overboard of machinery space bilge water
B. Automatic discharge overboard of machinery space bilge water
C. A and B
D. Neither A nor B
[单项选择]Which of the following should be the FIRST step in removing a generator from parallel operation?()
A. Trip the generator off the switchboard
B. Turn off all electrical equipment
C. Remove the load from the "off going" generator
D. Increase the cycles of the generator staying on the line