更多"What is NOT used as a stern tube be"的相关试题:
[单项选择]What type of stern tube bearing has the least friction（）.
A. Oil-lubricated bearings
B. Lignum vitae
C. Hard rubber
D. Bronze bushings
[单项选择]What is used for preventing pollution damage to the sea from ships?（）
A. MARPOL 73/78
B. SOLAS 74
C. STCW 78/95
D. ISPS 2002
[单项选择]What is used to correct for both induced and permanent magnetism，and consequently must be readjusted with radical changes in latitude（）.
A. Flinders bar
B. Soft iron spheres
C. Fore-and-aft permanent magnets in their trays
D. Heeling magnet
[单项选择]What is used to prevent twisting of a towing bridle?（）
A. A bitt
B. A bulkhead
C. A V-spring
D. A fishplate
[单项选择]What is used as an indicator of initial stability? （）
A. GM
B. KG
C. KM
D. GZ
[单项选择]Bourdon Tube is probably the most commonly used （） measuring instrument.
A. the absolute pressure
B. the gauge pressure
C. the vacuum pressure
D. the differential pressure
[单项选择]Generally, what is used to inflate life rafts?（）.
A. Non-toxic gas
B. oxygen
C. Hydrogen
D. Helium
[单项选择]What is used to test a tank for oxygen content?（）
A. Combustible gas indicator
B. Vapor indicator
C. Atmosphere analyzer kit
D. None of the above
[单项选择]What equipment is customarily used when seamen are working on a stage rigged over the side of a vessel（）.
A. Jacob's ladder
B. Manropes
C. Heaving lines
D. All of the above
[单项选择]A heavy，thick-walled tube，usually steel，used between the drill pipe and the bit in the drill stem to weight the bit in order to improve its performance is called a（）.
A. heavy-walled drill pipe
B. tool joint
C. down hole tool
D. drill collar
[单项选择]What can be used to measure the percentage of oxygen inside a chain locker?（）
A. Flame safety lamp
B. Combustible gas indicator
C. Oxygen indicator
D. H2S meter
[单项选择]What is commonly used to create turbulence in a diesel engine combustion system?（）
A. Shape of the piston crowns
B. Increasing the compression ratios
C. Increasing the piston crowns
D. Increasing the turbocharger gear ratio
[单项选择]What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology？（）
A. lowest port MAC address
B. port priority number and MAC address
C. VTP revision number
D. highest port priority number
E. path cost
[单项选择]What is normally used to pass a mooring line to a dock（）.
A. Distance line
B. Gantline
C. Heaving line
D. Tag line
[单项选择]What should be used to steer an open lifeboat if the rudder becomes lost or damaged?（）
A. Sea anchor
B. Steering oar
C. Spare rudder
D. Daggerboard
