630 ACTUAL EXAM WITH 100% PASS QUESTIONS AND ANSWERS

Which of the following statements describes semiconductor material after adding phosphorus giving it an excess of electrons? - correct answers N-type What is the process of adding materials to silicon to make it a good semiconductor? - correct answers Doping Which of the following materials is useful as a semiconductor? - correct answers Germanium Which of the following statements best describes the LED? - correct answers Emits light when properly biased What is the voltage drop across a silicon diode that is forward biased? - correct answers c. 0.7 volts What happens to a forward biased silicon diode when the barrier voltage is exceeded? - correct answers The diode breaks down What are the terminal designations on the diode? - correct answers Anode, cathode What type of rectifier uses four diodes to convert the AC to DC? - correct answers Full-wave bridge Which of the following statements is true for reading a good diode with a multimeter on the ohm's setting? - correct answers will read a very high resistance across the diode when forward biased Which of the following statements is true regarding zener diodes? - correct answers They are designed to operate in reverse bias mode Which of the following statements is true regarding varistors? - correct answers They are used to prevent component damage from surges Which best describes the operation of the photodiode? - correct answers a Will conduct when exposed to light if connected with reverse bias