NZART Amateur Examination                     page 4          NZARTX07 Security code 268509

  1. Two 20 uH inductances are connected in parallel. The total inductance is:
    1. 10 uH
    2. 20 uH
    3. 40 uH
    4. 80 uH

  2. The correct colour coding for the earth wire in a flexible mains lead is:
    1. brown
    2. blue
    3. yellow and green
    4. white

  3. In a forward biased pn junction, the electrons:
    1. flow from p to n
    2. flow from n to p
    3. remain in the n region
    4. remain in the p region

  4. A semiconductor is described as a "general purpose audio NPN device". This is a:
    1. triode
    2. silicon diode
    3. bipolar transistor
    4. field effect transistor

  5. In the figure shown, 2 represents the:
    1. base of a pnp transistor
    2. drain of a junction FET
    3. gate of a junction FET
    4. emitter of a pnp transistor

  6. When measuring the current drawn by a receiver from a power supply, the current meter should be placed:
    1. in parallel with both receiver power supply leads
    2. in parallel with one of the receiver power leads
    3. in series with both receiver power leads
    4. in series with one of the receiver power leads

  7. The input to an amplifier is 1 volt rms and the output 10 volt rms. This is an increase of:
    1. 3 dB
    2. 6 dB
    3. 10 dB
    4. 20 dB
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