Associate CET Practice Exam- Review Questions and Correct Answers

Moving one plate of a capacitor further away from the other will: decrease capacitance The fact than an inductor opposes any change in current is true of: AC and DC signals If you increase the value of a capacitor, the capacitive reactance will: decrease In checking a capacitor to see if it is shorted, open or leaky, you would use the ________Ohm meter range. Highest The capacitor in a power supply capacitive filter: is in parallel with the load The time required to dicharge a capacitor depends on the _____________ across its terminals. the combination of LRC With a given filter type, pure filtering is easiest with: high frequencies Using a resistor instead of an inductor in a power supply pi filter: all of the above A power supply whose output voltage does not change whether the load is light or heavy, would have what percent of regulation? 0 A power supply which measures 50 volts when under no load and 40 volts under a full load has what percent regulation using the % of regulation formula: (%=(EnL - EfL) / EfL x 100)? 25 Correctly connecting a properly rated zener diode across a power supply load will: limit the output DC A triac in a power control circuit: acts as an on/off switch Which wire gauge has the largest diameter? 20 What specification should NOT be of concern regarding wire conductors? Length The normal open circuit voltage for each nickelcadmium cell is approximatley ________. 1.2