更多"Which of the following relationship"的相关试题:
[单项选择]Which of the following problems may occur when using fuel oil with a high sulphur content?（）
A. Injection lag
B. Lube oil dilution
C. Pre-ignition
D. Corrosion
[单项选择]Which of the following problems will occur if the internal drain at either end of a hydraulic, two-way, spool-type directional control valve cylinder were to become plugged?（）
A. The reservoir would become vapor bound
B. The valve would be placed in hydraulic lock
C. The spring loaded relief ports would open
D. The buffering chambers would be unable to function
[单项选择]Which of the following problems can occur if you continually fail to drain off condensate from a starting air receiver?（）
A. Corrosion and eventual failure of the tank
B. Gumming of the tank relief valves
C. Immediate failure of components downstream of the compressed air system
D. Boiling of the water oil mixture as pressure is reduced
[单项选择]Which of the following problems may occur if the clearance between a piston and cylinder liner is insufficient?（）
A. Excessive wear
B. Scuffing of the liner
C. Piston seizure
D. All of the above
[单项选择]Which of the following problems may occur if the opening pressure of a fuel injection nozzle is greater than specified by the engine manufacturer?（）
A. The amount of fuel injected will be increased
B. The start of injection will be retarded
C. The nozzle will permit fuel to dribble
D. The spray pattern will be distorted
[单项选择]Which of the following problems will occur if a disk-type centrifugal lube oil purifier is not properly primed prior to admitting oil flow to the bowl?（）
A. Contamination of the lube oil by emulsification will result
B. The lube oil will not be subjected to the proper centrifugal force
C. The lube oil will overheat and flash
D. Oil will discharge from the heavy phase discharge port and be wasted
[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
[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 actions should normally be taken during each watch when the auxiliary boilers is in operation?（）
A. clean the flame scanner photocell window
B. Inspect and clean all solenoid valves
C. lift the safety valves by hand
D. Inspect for oil or water leaks
[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 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 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
