更多"When measuring AC current flow, you"的相关试题:
[单项选择]Current measuring instruments must always be connected in （）
A. series with a circuit
B. parallel with a circuit
C. series-parallel with a circuit
D. delta with the shunt
[单项选择]When paralleled, AC generators must have the same （）
A. frequency
B. number of phases
C. phase rotation
D. All of the above
[单项选择]When using the lifeboat compass，you must be careful to（）.
A. set it on the centerline of the boat
B. apply the correction for compass error
C. keep metal objects away from it
D. All of the above
[单项选择]When welding or burning aboard a vessel, you must be certain that the space （）.
A. is properly vented
B. contains no explosive fumes
C. has no oil in the bilges
D. all of the above
[单项选择]You should always wear（）when working on deck.
A. helmet
B. slippers
C. goggles
D. immersion suits
[单项选择]When securing an AC generator, you should FIRST （）.
A. open the generator circuit breaker
B. switch the voltage regulator to “manual”
C. decrease the field excitation to minimum
D. reduce the load on the unit
[单项选择]Where must you record the date of each emergency training drill conducted on a ship（）.
A. In the logbook
B. In the Operations Manual
C. On the Certificate of Inspection
D. On the muster list
[单项选择]The information flow of the MSI broadcast must be controlled（）.
A. to avoid mutual interference
B. to keep silence
C. owing to the time-share nature
D. to regulate transmitter power
[单项选择]When must a dry chemical fire extinguisher be recharged?（）
A. After each use
B. When the air temperature exceeds 90°F
C. Every 6 months
D. Every 12 months
[单项选择]When the current flow through a copper wire increases, its （）
A. resistance will decrease
B. insulation will bum
C. temperature will increase
D. conductivity will increase
[单项选择]When must the Master of a vessel log the position of load line marks in relation to the surface of the water in the Official Logbook?（）
A. Once a day
B. At the change of every watch
C. Only when in fresh or brackish water
D. Prior to getting underway
[单项选择]When must the Master or person in charge of a ship log the position of load line marks in relation to the surface of the water in the logbook?（）
A. Once a day
B. At the change of every watch
C. Only when in fresh or brackish water
D. Prior to getting underway
[单项选择]When should you conduct a visual inspection of your towline? （）
A. Whenever its serviceability is in doubt
B. In accordance with the manufacturer's recommendation
C. At least once a month
D. All of the above
[填空题]It is
when
you nearly lose someone
when
you become
fully
conscious of how much you value
them
.
[单项选择]When discharging bilge water, which criteria must be observed?（）
A. The requirement for the oil content of bilge water discharged is 15 ppm
B. No discharge in sensitive waters
C. Any discharge in sensitive waters
D. International, national or local requirements have to be observed
[单项选择]You are standing the wheelwatch when you hear the cry，“Man overboard starboard side”.You should instinctively（）.
A. Give full right rudder
B. Give full left rudder
C. Put the rudder amidships
D. Throw a life ring to mark the spot
[单项选择]Which factor must be considered when determining the order of loading of dissimilar products through the same piping system aboard a tanker? （）
A. Contamination of the cargo
B. Flash points
C. Reid vapor pressures
D. Specific gravities
[单项选择]When you read the sailing directions, you should notice that this is one of a series of publications produced by the（）which should be consulted by users of Admiralty Charts.
A. UK Hydrographic Office
B. IMO
C. International Hydrographic Organization
D. International Association of Classification society
[单项选择]When referring to dry bulk cargoes，the term “flow state”（）.
A. designates the state of a commodity when the ship is heeled past the angle of repose
B. relates to the suitability of loading a cargo by flowing down inclined chutes
C. refers to the saturation of a dry bulk product with water to the point where it acts as a liquid
D. relates to the minimum granule size of a particular product where it will flow like a liquid at an angle of 30°
