更多"To parallel an incoming machine to "的相关试题:
[单项选择]You are running parallel to the coast and estimate that the current is against you.In plotting a running fix using bearings from the same object on the coast，the greatest safety margin from inshore dangers will result if what speed is used to determine（）.
A. Minimum speed estimate
B. Maximum speed estimate
C. Average speed estimate
D. A running fix should not be used under these conditions
[单项选择]You are running parallel to the coast and take a running fix using bearings of the same object.If you are making less speed than used for the running fix，in relation to the position indicated by the fix，you will be（）.
A. Closer to the coast
B. Farther from the coast
C. On the track line ahead of the fix
D. On the track line behind the fix
[单项选择]With No~1 and No~2 alternators running in parallel and the KW loads equally shared, one alternator is drawing much higher current than the other.What does this indicate?（）
A. The alternators are not generating the same voltages and should be adjusted on automatic voltage regulator rheostats
B. Alternator frequencies are different and should be adjusted on the governor speed controllers
C. Alternators are out of phase and should be tripped and paralleled again
D. One alternator has lost one of its phases
[单项选择]In some river mouths and estuaries the incoming high-tide wave crest overtakes the preceding low-tide trough. This results in a wall of water proceeding upstream，and is called a（）.
A. seiche
B. bore
C. boundary wave
D. surge
[单项选择]The division of kilowatt load between two paralleled alternators is determined by the （）
A. amount of field excitation of the leading machine
B. load-speed characteristics of the governors
C. amount of field excitation to the lagging machine
D. type of alternator
[单项选择]The distance a vessel moves parallel to the original course from the point where the rudder is put over to any point on the turning circle is called the（）.
A. advance
B. drift angle
C. pivoting point
D. transfer
[单项选择]When carrying out a parallel track search pattern，the course of the search units should normally be which of the following?（）
A. In the same direction as the anticipated drift
B. In the opposite direction of the anticipated drift
C. Perpendicular to the line of anticipated drift
D. Downwind
[单项选择]You are attempting to parallel two AC generators, and the syncope pointer is revolving in the fast directionThis indicates that the frequency of the incoming machine is （）.
A. higher than the bus frequency
B. lower than the bus frequency
C. the same as the bus frequency but out of phase with it
D. the same as the bus frequency and the circuit breaker may be closed at any pointer position
[单项选择]You are attempting to parallel two AC generators and the synchroscope pointer is revolving in the slow directionThis indicates that the frequency of the incoming machine is （）.
A. higher than the bus frequency
B. lower than the bus freouencv
C. the same as the bus frequency but out of phase with it
D. the same as the bus frequency, and the circuit breaker may be closed at any pointer position
[单项选择]The broken magenta line which runs parallel to the shorebetween Roanoke Point and Mattituck Inlet marks a（）.
A. fish trap area
B. pipeline
C. demarcation line
D. cable area
[单项选择]The total power consumed in a parallel circuit is （）
A. the sum of the powers used in each load (resistor)
B. divided by the number of loads
C. always less than the power used in the smallest load
D. the sum of the powers used in each individual load never more than the power used in the largest load
[单项选择]The total resistance of a parallel circuit is always （）.
A. larger than the greatest branch resistance
B. smaller than the lowest branch resistance
C. equal to the sum of the individual branch resistances
D. one-half the sum of the individual branch resistances
[单项选择]When two DC generators operate in parallel, they are protected against motorizing by（）
A. blow out coils
B. governor relay
C. under voltage trips
D. reverse current trips
[单项选择]If two AC generators are operated in parallel, the load is distributed evenly by（）
A. a rheostat
B. a balancing coil
C. changing field excitation
D. adjusting the governor settings
[单项选择]A parallel of latitude other than the equator is a（）.
A. great circle
B. loxodromic curve
C. small circle
D. gnomonic curve
[单项选择]The short-long dashed，magenta lines parallel to York River Entrance Channel mark（）．
A. fish trap areas
B. naval exercise areas
C. underwater cables
D. recommended track lines
[单项选择]Engines, which are to be run in parallel have governors specially adapted for the same（）, about 4% to obtain basic load sharing.
A. speed settings
B. speed droops
C. speed drops
D. speed changes
[单项选择]While the parallel operation, （） must be used.
A. ammeter
B. voltmeter
C. synchroscope
D. A+B+C
