35 4-59.   A half-wave voltage doubler consists of what total number of half-wave rectifiers?   1.    One   2.    Two   3.    Three   4.    Four 4-60.   If a half-wave rectifier circuit is added to a half-wave voltage doubler circuit, what will be the resulting circuit?   1.    A voltage doubler   2.    A voltage tripler   3.    A voltage quadruplet   4.    A voltage quintuplet 4-61.   Which of the following methods is used by manufacturers of electronic equipment to reduce the cost of extensive wiring?   1.    Grounding the output of the power supply to the chassis   2.    Grounding the return side of the power transformer to the chassis   3.    Connecting all components in parallel   4.    Connecting all components in series 4-62.   When working on electronic equipment, the technician should observe which of the following safety precautions?   1.    Make certain that the electronic equipment is properly grounded   2.    Make certain that the test equipment is properly grounded   3.    Make certain that the rubber mats are in good condition   4.    All of the above 4-63.   Which of the following is/are the most widely used check(s) for testing electronic equipment?   1.    Smoke   2.    Visual   3.    Signal tracing   4.    Both 2 and 3 above 4-64.   Any connection that is located close to the chassis or to any other terminal should be examined for the possibility of which of the following problems?   1.    An open   2.    A short   3.    A low resistance   4.    A high resistance 4-65.   Which of the following statements applies to a transformer that is discolored or leaking?   1.    It is operational   2.    It is cracked   3.    It is shorted   4.    It is open 4-66.   As a technician, you notice that a resistor is discolored and charred. Which, if any, of the following conditions most likely caused the damage?   1.    Overload   2.    Open circuit   3.    Ambient temperature   4.    None of the above 4-67.   You are in the process of energizing a power supply. You hear a boiling or sputtering noise and notice smoke coming from a section of the power supply. Which, if any, of the following actions should you take first?   1.    Secure the power immediately   2.    Examine the problem area   3.    Remove the defective component   4.    None of the above 4-68.   Which, if any, of the following is the most rapid and accurate method for testing electronic circuits after completing visual inspection?   1.    Smoke test   2.    Current test   3.    Signal tracing   4.    None of the above