Engine Electrical Systems
Quiz
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Specialty
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University
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Gerald Ciccone
Used 3+ times
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What device is used to convert alternating current, which has been induced into the loops of the rotating armature of a dc generator, to direct current?
A rectifier.
A commutator.
An inverter.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A certain direct current series motor mounted within an aircraft draws more amperes during start than when it is running under its rated load. The most logical conclusion that may be drawn is
the starting winding is shorted.
the brushes are floating at operating RPM because of weak brush springs.
the condition is normal for this type of motor.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The stationary field strength in a direct current generator is varied
by the reverse-current relay.
because of generator speed.
according to the load requirements.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of electric motor is generally used with a direct-cranking engine starter?
Direct current, shunt-wound motor.
Direct current, series-wound motor.
Synchronous motor.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Upon what does the output frequency of an ac generator (alternator) depend?
The speed of rotation and the strength of the field.
The speed of rotation, the strength of the field, and the number of field poles.
The speed of rotation and the number of field poles.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A high surge of current is required when a dc electric motor is first started. As the speed of the motor increases,
the counter emf decreases proportionally.
the applied emf increases proportionally.
the counter emf builds up and opposes the applied emf, thus reducing the current flow through the armature.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Alternators (ac generators) that are driven by a constantspeed drive (CSD) mechanism are used to regulate the alternator to a constant
voltage output.
amperage output.
hertz output.
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