What dB change represents a factor of two increase or decrease in power?

1. A Approximately 2 dB
2. B Approximately 3 dB
3. C Approximately 6 dB
4. D Approximately 9 dB

How does the total current relate to the individual currents in a circuit of parallel resistors?

1. A It equals the average of the branch currents
2. B It decreases as more parallel branches are added to the circuit
3. C It equals the sum of the currents through each branch
4. D It is the sum of the reciprocal of each individual voltage drop

How many watts of electrical power are consumed if 400 VDC is supplied to an 800-ohm load?

1. A 0.5 watts
2. B 200 watts
3. C 400 watts
4. D 3200 watts

How many watts of electrical power are consumed by a 12 VDC light bulb that draws 0.2 amperes?

1. A 2.4 watts
2. B 24 watts
3. C 6 watts
4. D 60 watts

How many watts are consumed when a current of 7.0 milliamperes flows through a 1,250-ohm resistance?

1. A Approximately 61 milliwatts
2. B Approximately 61 watts
3. C Approximately 11 milliwatts
4. D Approximately 11 watts

What is the PEP produced by 200 volts peak-to-peak across a 50-ohm dummy load?

1. A 1.4 watts
2. B 100 watts
3. C 353.5 watts
4. D 400 watts

What value of an AC signal produces the same power dissipation in a resistor as a DC voltage of the same value?

1. A The peak-to-peak value
2. B The peak value
3. C The RMS value
4. D The reciprocal of the RMS value

What is the peak-to-peak voltage of a sine wave with an RMS voltage of 120 volts?

1. A 84.8 volts
2. B 169.7 volts
3. C 240.0 volts
4. D 339.4 volts

What is the RMS voltage of a sine wave with a value of 17 volts peak?

1. A 8.5 volts
2. B 12 volts
3. C 24 volts
4. D 34 volts

What percentage of power loss is equivalent to a loss of 1 dB?

1. A 10.9 percent
2. B 12.2 percent
3. C 20.6 percent
4. D 25.9 percent

What is the ratio of PEP to average power for an unmodulated carrier?

1. A 0.707
2. B 1.00
3. C 1.414
4. D 2.00

What is the RMS voltage across a 50-ohm dummy load dissipating 1200 watts?

1. A 173 volts
2. B 245 volts
3. C 346 volts
4. D 692 volts

What is the output PEP of an unmodulated carrier if the average power is 1060 watts?

1. A 530 watts
2. B 1060 watts
3. C 1500 watts
4. D 2120 watts

What is the output PEP of 500 volts peak-to-peak across a 50-ohm load?

1. A 8.75 watts
2. B 625 watts
3. C 2500 watts
4. D 5000 watts