# AC Motors, Alternators and Hydraulic Transmission

## Quiz Questions

 1. A two pole, 3,600 rpm alternator has a frequency of _______________.? 40 cps 60 cps 120 cps 360 cps 2. The control field of the exciter generator is in the collector circuit. Increasing the output of the exciter generator will increase the field strength of the AC generator, which will ____________ the generator output. Decrease Increase 3. A transistorized voltage regulator consists mainly of _________________.? Transistors Diodes Resistors All of the above 4. The overvoltage relay is closed when the generator output reaches ___________ and completes a circuit to the trip coil of the field control relay. 8 volts 16 volts 24 volts 32 volts 5. The speed of rotation of an AC motor depends upon the number of poles and the frequency of the electrical source of power, speed in rpm = ______________.? (120 x Frequency)/Number of Poles (120 x Number of Poles)/ Frequency 120 x (Frequency+(1/Number of Poles)) 6. The following figure represents ______________________.? Single phase motor with capacitor starting winding Double phase motor with capacitor starting winding Multi-phase motor with capacitor starting winding 7. In Synchronous motor the torque developed does not depend on the induction of currents in the rotor. True False 8. The following figure represents _____________________________.? Inductively compensated armature of AC series motor. Transitivity compensated armature of AC series motor. Conductively compensated armature of AC series motor. 9. The three phase alternator has three single phase windings spaced so that the voltage induced in each winding is ___________ out of phase with the voltages in the other two windings. 90° 120° 180° 270° 10. The synchronous motor is a simple self-starting motor. True False