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Hello, my name is Greg.
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1. If a 2:1 transformer has a 220 VAC input, a voltage test at the primary winding should produce a meter reading ofA. 0 VAC.B. 110 VAC.C. 220 VAC.D. 440 VAC.2. A circuit contains four 100 O resistors connected in series. If you test the circuit with a digital VOM, you should read a total resistance value ofA. 100 O.B. 250 O.C. 400 O.D. 1,000 O.3. What type of circuit measurement is made by placing a meter's leads in parallel with a deenergized component?A. CurrentB. ResistanceC. VoltageD. Power4. When you measure _______ with a multimeter, you must break open the circuit and connect the meters test leads in series with the other circuit components.A. currentB. resistanceC. powerD. voltage5. The allowable amount of difference in resistance between a resistor's true resistance and its labeled resistance is called theA. continuity.B. tolerance.C. specification.D. potential.6. A high-voltage probe should always be used whenever you measure voltages near or aboveA. 100 VAC or VDC.B. 500 VAC or VDC.C. 750 VAC or VDC.D. 1,000 VAC or VDC.7. A resistance test that's used to determine whether a circuit is complete or open is called aA. short circuit test.B. start-up or inrush test.C. continuity test.D. comparison test.8. A current value of 0.000005 A is equal toA. 5 µA.B. 50 µA.C. 5 mA.D. 50 mA.9. If the resistance reading on a VOM's meter face is 22.5 O and the range selector switch is set to the R × 100 range, what is the actual measured resistance of the circuit?A. 225 OB. 2.25 kOC. 22.5 kOD. 2.25 MO10. A circuit contains a 40 O resistor and a 60 O resistor connected in parallel. If you test this circuit with a digital VOM, you should read a total resistance value ofA. 2.5 O.B. 24 O.C. 40 O.D. 2,400 O.11. What feature on a digital VOM is used to override or defeat the autoranging function?A. The range selection lock featureB. The minimum/maximum featureC. The touch/hold featureD. The delta feature12. Imagine that you're performing measurements on a circuit with a multimeter. You measure a total circuit current of 2 A, and the circuit is powered by a 24 V power supply. What total resistance value would you expect to measure in the circuit?A. 2 OB. 12 OC. 24 OD. 48 O13. What feature of a digital VOM allows you to connect the test probes in the circuit, remove the probes, and then read the measured value on the display?A. The minimum/maximum featureB. The diode testerC. The delta featureD. The touch/hold feature14. A circuit contains a 10 O resistor, a 50 O resistor, and an 80 O resistor connected in parallel. If you test this circuit with a digital VOM, you should read a total resistance value ofA. 0.13 O.B. 7.55 O.C. 75 O.D. 140 O.15. A circuit contains a 12 V power supply (a DC battery) and two 100 O resistors that are connected in series. What total current value would you expect to measure in this circuit?A. 0.06 AB. 0.12 AC. 8.33 AD. 16.67 A16. If a meter's range selection switch is set to the R × 10 range and the meter reading is 22 O, what is the actual measured resistance of the circuit?A. 2.2 OB. 22 OC. 220 OD. 2,200 O17. A low-resistance path in a circuit, commonly called a _______, can cause a circuit breaker to trip.A. closed circuitB. short circuitC. parallel connectionD. series connection18. A _______ is a three-terminal variable resistor that's often used to adjust motor speed.A. limit switchB. transformerC. transducerD. potentiometer19. One watt of electrical power is produced whenA. one ampere of current flows due to an applied voltage of one volt.B. work is done to move electrons with respect to time.C. a conducting path is present between two opposing electrical charges.D. electrical pressure is present in a circuit.20. A voltage that has been stepped down is measured across the output terminals of aA. conductor.B. transformer.C. relay.D. lampholder.
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