1.A DC shunt generator without a voltage regulator,if the load increases the generator output voltage will
a.Remain constant
b.Increase
c.Decrease*
2.The out from an AC generator is taken
a.Slip rings*
b.Commutator
c.Connection from stator
3.What is the cause of generator brush arching
a.Carbon dust particles
b.Excessive spring tension
c.Low spring tension*
4.Whwn AC generators are operating in parallel the
a.Amphere and frequency both are equa;
b.Frequency and voltage both are equal*
c.Amphere and voltage are equal
5.The method most often used in overcoming the effect of armature reaction is through the use of
a.Shaded poles
b.Interpoles*
6.The pole piece or shoe used in DC generator are parts of
a.Brush assembly
b.Field assembly*
c.Commutator assembly
7.How many cycles of AC voltage are produced in a six pole alternator of the revolving field type for each revolving of the rotor
a.3*
b.4
c.5
8.The effect of armature reaction is propotional to
a.The strength of stationary fields
b.The voltage output
c.The load on the generator*
9.The poles of genarator laminated to
a.Reduce flux loss
b.Reduce eddy current loss*
c.Reduce hysteris loss
10.Shunt type DC generator are commonly used in aircraft because
a.slightly falling Volt/load characteristic*
b.Slightly rising volt/load characteristic
c.Slightly rising speed/load
11.What is the effect of reversing the supply to the field and armature of DC shunt motor,
a.Reverse the direction of rotation
b.Continues to rotate in same direction*
c.Fails to start.
12.The torque speed characteristic of an aircraft starter motor is
a.High torque slow speed
b.Low torque high speed
c.High torque high speed*
13.Three phase induction motor can be reverse by
a.Isolating one phase
b.By reversing the motor connection
c.Changing any two phases
14Which of the following motors would mostly like to have an armature brake
a.Landing light retraction motor*
b.inverter drive motor
c.Starter motor
15.A voltage regulator controls the generator voltage by changing
a.Resistance in the generator output circuit
b.Current in the generator output circuit
c.Resistance in the generator field circuit*
