G5B01:

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

  1. Approximately 2 dB
  2. Approximately 3 dB
  3. Approximately 6 dB
  4. Approximately 12 dB

G5B02:

How does the total current relate to the individual currents in each branch of a purely resistive parallel circuit?

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

G5B03:

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

  1. 0.5 watts
  2. 200 watts
  3. 400 watts
  4. 3200 watts

G5B04:

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

  1. 2.4 watts
  2. 24 watts
  3. 6 watts
  4. 60 watts

G5B05:

How many watts are dissipated when a current of 7.0 milliamperes flows through a 1250 ohm resistance?

  1. Approximately 61 milliwatts
  2. Approximately 61 watts
  3. Approximately 11 milliwatts
  4. Approximately 11 watts

G5B06:

What is the output PEP from a transmitter if an oscilloscope measures 200 volts peak-to-peak across a 50 ohm dummy load connected to the transmitter output?

  1. 1.4 watts
  2. 100 watts
  3. 353.5 watts
  4. 400 watts

G5B07:

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

  1. The peak-to-peak value
  2. The peak value
  3. The RMS value
  4. The reciprocal of the RMS value

G5B08:

What is the peak-to-peak voltage of a sine wave with an RMS voltage of 120.0 volts?

  1. 84.8 volts
  2. 169.7 volts
  3. 240.0 volts
  4. 339.4 volts

G5B09:

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

  1. 8.5 volts
  2. 12 volts
  3. 24 volts
  4. 34 volts

G5B10:

What percentage of power loss would result from a transmission line loss of 1 dB?

  1. 10.9 percent
  2. 12.2 percent
  3. 20.6 percent
  4. 25.9 percent

G5B11:

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

  1. 0.707
  2. 1
  3. 1.414
  4. 2.00

G5B12:

What would be the RMS voltage across a 50 ohm dummy load dissipating 1200 watts?

  1. 173 volts
  2. 245 volts
  3. 346 volts
  4. 692 volts

G5B13:

What is the output PEP of an unmodulated carrier if an average reading wattmeter connected to the transmitter output indicates 1060 watts?

  1. 530 watts
  2. 1060 watts
  3. 1500 watts
  4. 2120 watts

G5B14:

What is the output PEP from a transmitter if an oscilloscope measures 500 volts peak-to-peak across a 50 ohm resistive load connected to the transmitter output?

  1. 8.75 watts
  2. 625 watts
  3. 2500 watts
  4. 5000 watts