更多"Name one major advantage of transpo"的相关试题:
[单项选择]A ship under construction or major repair will acquire permanent magnetism due to（）while sitting stationary in the earth’s magnetic field.
A. hammering and jarring
B. vibration and pounding
C. varying magnetic fields
D. stable or permanent magnetism of the ship
[单项选择]One major advantage of the round turn maneuver in a man overboard situation is that it（）.
A. is the fastest method
B. is easy for a single-screw vessel to perform
C. requires the least shiphandling skills to perform
D. can be used in reduced visibility
[单项选择]Hot gas bypass is one of the methods used to （）
A. relieve excessive compressor head pressure
B. produce flash gas at the expansion valve
C. reduce flooding of the receiver at low load
D. defrost the evaporator coils
[单项选择]One of the major concerns of students in any speech class（）stage fright.
A. are
B. is
C. was
D. were
[单项选择]One major disadvantage of a low-speed diesel as compared to a steam main-propulsion system is（）.
A. the extra weight required for the diesel reduction gearing
B. a minimum speed for the engines that limits the minimum speed of the vessel
C. the higher fuel consumption per SHP
D. the low efficiency of the system when a controllable pitch propeller is used
[单项选择]One of the major features of the STCW95 is the adoption of a new STCW Code, to which many have been transferred（）
A. safety regulations
B. technical regulations
C. minimum requirements
D. standard requirements
[单项选择]Each inert gas system gas main must have an automatic shut down valve at the outlet of the gas production plant. This valve must close automatically upon（）.
A. cargo pump failure
B. blower failure
C. deck seal low water level
D. low inert gas temperature
[单项选择]Hot gas defrosting uses the hot gas from （） to defrost the evaporator.
A. starting air bottles
B. diesel engines
C. boilers
D. refrigeration compressors
[单项选择]Gas masks（）.
A. should be worn while fighting a fire
B. can be used in atmospheres deficient in oxygen
C. filter contaminants from air that is to be breathed
D. may be substituted for a self-contained breathing apparatus
[单项选择]Combustible gas indicators measure the presence of combustible gas as a percentage of the（）.
A. flash point
B. upper explosive limit
C. lower explosive limit
D. fire point
[单项选择]A combination combustible gas and oxygen indicator is an instrument that measures the（） of both combustible gas and oxygen; each is indicated on a separate meter.
A. purifies
B. combinations
C. concentrations
D. filters
[单项选择]A whistle signal of one prolonged，one short，one prolonged and one short blast，is sounded by a vessel（）.
A. at anchor
B. towing a submerged object
C. being overtaken in a narrow channel
D. in distress
[单项选择]A signal of one prolonged，one short，one prolonged，and one short blast，in that order is given by a vessel（）.
A. engaged on pilotage duty
B. in distress
C. at anchor
D. being overtaken in a narrow channel
[单项选择]A marine chemist issues gas free certificates and is certified by the（）.
A. Mine Safety Appliance Association
B. American Chemical Society
C. Marine Chemists Association
D. National Fire Protection Association
[单项选择]A combustible gas indicator meter is calibrated to read the percentage of（）.
A. vapor to oxygen
B. the flammable limit concentration
C. the autoignition concentration
D. the lower explosive limit concentration
[单项选择]Combustible gas indicators operate by drawing an air sample into the instrument（）.
A. over an electrically heated platinum filament
B. where it is mixed with nitrogen
C. where it is ignited by a sparking device
D. where its specific gravity is measured
