18 3-10. In a simple half-wave rectifier, the diode tube will conduct for a maximum of how many degrees of the 360-degree input signal?   1.      45   2.      90   3.    180   4. 270 3-11. What term is used to describe current pulses that flow in the same direction?   1.    Average current   2.    Secondary current   3.    Pure direct current   4.    Pulsating direct current 3-12. For a diode to act as a rectifier, how should it be connected in a circuit?   1.    In parallel with the input   2.    In parallel with the load   3.    In series with the input   4.    In series with the load 3-13. What is the ripple frequency of a half- wave rectifier with an input line frequency of 60 Hz?   1.      30 Hz   2.      60 Hz   3.      90 Hz   4.    120 Hz 3-14. In a half-wave rectifier, what is the average voltage output when the peak voltage is 300 volts?   1.    190.8 volts   2.      95.4 volts   3.      19.08 volts   4.        9.4 volts 3-15. The full-wave rectifier was developed for which of the following reasons?   1.    To obtain the highest average voltage and current   2.    To increase the number of components   3.    To increase the value of the voltage   4.    To obtain better regulation 3-16. What is the ripple frequency of a full- wave rectifier with an input line frequency of 60 Hz?   1.      30 Hz   2.      60 Hz   3.      90 Hz   4.    120 Hz 3-17. What is the average voltage output of a full-wave rectifier that has an output of 100 volts peak?   1.      3.18 volts   2.      6.37 volts   3.    31.8 volts   4.    63.7 volts 3-18. The primary disadvantage of the conventional full-wave rectifier is that the peak output voltage is only half that of the half-wave rectifier.   1.    True   2.    False THIS SPACE LEFT BLANK INTENTIONALLY.