Image Production - ARRT X-RAY BOARD EXAM |Question and Answer| 100% Correct

Image Production - ARRT X-RAY BOARD EXAM |Question and Answer| 100% Correct The resistance of electric flow through a circuit is measured in: A. Volts B. Amperes C. Ohms D. Joules *Ans* C. Ohms A circuit with a single path for electric current flow is defined as a(n): A. Parallel circuit B. Closed circuit C. Series circuit D. Open circuit *Ans* C. Series circuit The degree of resistance provided by an individual resistor within a circuit is measured in: A. Volts B. Watts C. Ohms D. Amperes *Ans* C. Ohms Within a circuit, the letter ( I ) is used to represent A. Voltage B. Resistance C. Current D. Watts *Ans* C. Current Within a series circuit, total resistance can be calculated by: A. Multiplying the ohms of all resistors within the circuit B. Summing the ohms of all resistors within the circuit C. Subtracting the ohms of all resistors within the circuit *Ans* B. Summing the ohms of all resistors within the circuit Electrical current is measured in units of: A. Watts B. Volts C. Amperes D. Ohms *Ans* C. Amperes What is the total current (in amperes) of a series circuit with 220 volts and 20 ohms? A. 240 amperes B. 4,400 amperes C. 11 amperes D. 220 amperes *Ans* C. 11 amperes Within a parallel circuit, the breaking of a single path will stop the follow of electricity throughout the entire circuit. A. True B. False *Ans* B. False Removing a resistor within a circuit can act to increase the total voltage of a circuit. A. True B. False *Ans* B. False What is the total resistance of a parallel circuit with three resistors of 6 ohm, 12 ohm, and 2 ohm? A. 20 ohms B. 12 ohms