CET Study Guide- Test Questions and Answers

The "1" in binary number carries a decimal weight of ___________. 32 Which of these is within tolerance for a resistor that is color coded red, black, red and gold? 2000 and 1900 ohm's Which would be the most likely cause of hum in an amplifier- but only when it is switched to the CD position? Bad shielded cable from the CD to the amplifier input When measuring power to a speaker, a doubling of the power represents a 3 dB increase. True A voltmeter that converts AC to DC by rectifying the voltage would be used to indicate the correct value of measured _______. Sine waves Regarding PC's, what does "RAM" mean? Random Access memory What is the binary number for decimal number 6? 0110 In order for a capacitor to function as a coupling capacitor, Xc, must be less than ______ at the lowest frequency at which the AC circuit is operating. 0.1 R The term for the combination of resistance and reactance that restricts the flow of alternating current is _______. Impedance Adding the binary numbers 110111 and 001101 will give which one of these results? 1000100 How should a fuse be installed in a circuit to ensure proper operation? In series with the load A lead-acid battery cell, when charged, has a nominal value of ________. 3.4 volts Common analog telephone lines, on hook, may be expected to have what DC voltage level on one of the wires? -48 v A dual-trace scope has ___________. Two vertical inputs