更多"The star formation is most commonly"的相关试题:
[单项选择]Hydraulic pumps most commonly used in steering systems are of the ().
A. lobe type
B. screw type
C. axial piston type
D. volute type
[单项选择]What type of electric motor is most commonly used on board ship?()
A. non-synchronous electric motor
B. synchronous electric motor
C. fully enclosed electric motor
D. watertight electric motor
[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]The type of gauge most commonly used to measure pressure is the ().
A. bimetallic type
B. diaphragm type
C. bourdon tube type
D. resistance-temperature type
[单项选择]The most common instrument used to measure diesel engine exhaust pressure is the ()
A. pyrometer
B. bourdon gauge
C. pneumercator
D. manometer
[单项选择]The two most common gases used in pneumatic system are ()
A. compressed air and nitrogen
B. helium and nitrogen
C. oxygen and hydrogen
D. oxygen and acetylene
[单项选择]A high cube container would most likely be used to stow().
A. dense bulk cargoes
B. household appliances
C. fragile cargoes
D. heavy industrial machinery
[单项选择]In order for a star to be used for a sight at lower transit,the star must().
A. be circumpolar
B. have a declination equal to or greater than your latitude
C. have a GHA of 180°
D. have the SHA equal to or less than the LHA
[单项选择]Which arrangement of shell plating is used most in modern shipbuilding().
A. Clinker
B. Flush
C. In-and-Out
D. Joggled
[单项选择]Automatic mechanical ventilation shutdown is required for CO2 systems protecting the().
A. machinery spaces
B. cargo compartments
C. living quarters
D. galley
[单项选择]The MOST important feature of the material used for making the binnacle of a standard magnetic compass is that it is().
A. nonmagnetic
B. weatherproof
C. corrosion resistant
D. capable of being permanently affixed to the vessel
[单项选择]Peck and Hale gear is used most commonly for securing().
A. automobiles
B. baled cargo
C. large wooden crates
D. palletized cargo
[单项选择]A snatch block would most likely be used as a().
A. boat fall
B. fairlead
C. riding pawl
D. topping lift
[单项选择]The operation of paralleling two alternators requires the voltages to be ()and also in phase.
A. zero
B. eliminated
C. different
D. equal
[单项选择]The most common forms of main drive used on deck auxiliaries are ().
A. steam plants, electric motors and compressed air
B. diesel engine, hydraulic machinery and compressed air
C. steam plants, electric motors and hydraulic machinery
D. diesel engines, steam plants and hydraulic machinery
[单项选择]Which one might be used most likely in case of a fire?()
A. lifejacket
B. SCBA
C. lifeboat
D. torch
[单项选择]A lube oil filter can be used to remove most contaminants from lube oilA contaminant which will remain in the lube oil after filtering is ().
A. acid
B. fuel oil
C. sediment
D. water
[单项选择]Which of following physical abilities is not required as to the routine movement around a vessel?()
A. Maintain balance and move with agility
B. Climb up and down vertical ladders and stairways
C. Open and close watertight doors
D. Take part in vessel evacuation procedures