Topic T5B Quick Review Audio

T5B01:

How many milliamperes is 1.5 amperes?

  1. 15 milliamperes
  2. 150 milliamperes
  3. 1500 milliamperes
  4. 15,000 milliamperes

T5B02:

What is another way to specify a radio signal frequency of 1,500,000 hertz?

  1. 1500 kHz
  2. 1500 MHz
  3. 15 GHz
  4. 150 kHz

T5B03:

How many volts are equal to one kilovolt?

  1. One one-thousandth of a volt
  2. One hundred volts
  3. One thousand volts
  4. One million volts

T5B04:

How many volts are equal to one microvolt?

  1. One one-millionth of a volt
  2. One million volts
  3. One thousand kilovolts
  4. One one-thousandth of a volt

T5B05:

Which of the following is equal to 500 milliwatts?

  1. 0.02 watts
  2. 0.5 watts
  3. 5 watts
  4. 50 watts

T5B06:

If an ammeter calibrated in amperes is used to measure a 3000-milliampere current, what reading would it show?

  1. 0.003 amperes
  2. 0.3 amperes
  3. 3 amperes
  4. 3,000,000 amperes

T5B07:

If a frequency display calibrated in megahertz shows a reading of 3.525 MHz, what would it show if it were calibrated in kilohertz?

  1. 0.003525 kHz
  2. 35.25 kHz
  3. 3525 kHz
  4. 3,525,000 kHz

T5B08:

How many microfarads are equal to 1,000,000 picofarads?

  1. 0.001 microfarads
  2. 1 microfarad
  3. 1000 microfarads
  4. 1,000,000,000 microfarads

T5B09:

What is the approximate amount of change, measured in decibels (dB), of a power increase from 5 watts to 10 watts?

  1. 2 dB
  2. 3 dB
  3. 5 dB
  4. 10 dB

T5B10:

What is the approximate amount of change, measured in decibels (dB), of a power decrease from 12 watts to 3 watts?

  1. -1 dB
  2. -3 dB
  3. -6 dB
  4. -9 dB

T5B11:

What is the amount of change, measured in decibels (dB), of a power increase from 20 watts to 200 watts?

  1. 10 dB
  2. 12 dB
  3. 18 dB
  4. 28 dB

T5B12:

Which of the following frequencies is equal to 28,400 kHz?

  1. 28.400 MHz
  2. 2.800 MHz
  3. 284.00 MHz
  4. 28.400 kHz

T5B13:

If a frequency display shows a reading of 2425 MHz, what frequency is that in GHz?

  1. 0.002425 GHz
  2. 24.25 GHz
  3. 2.425 GHz
  4. 2425 GHz