Test Your Electronics Knowledge (Part A) by J.A. Sam Wilson

Questions

1. What do the initials TVRO stand for?

2. Can 45678 be a number in the octal system of counting?

3. Express the numeral 1 as a power of ten.

4. The maximum rate of change for an op amp for a given input step voltage is called the op amp _______ ________.

5. A perfect square wave delivered to the vertical input terminal of an oscilloscope produces a rise time of 0.02µS. What is the approximate bandwidth of the oscilloscope's vertical amplifier?

6. What type of counter clocks all of the flip-flops on and off at the same time?

7. You would expect to find a de-emphasis circuit in:
    A. an FM transmitter
    B. an FM receiver
    C. Neither choice is correct

8. Two identical ferrite beads are used to replace one ferrite bead. The inductance in the circuit is changed to:
    A. L1 + L2 + 2M
    B. 2L

9. A resistor used to replace a speaker for testing purposes is called a _____ ____.

10. Which type of bridge circuit is used for measuring frequency?

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Answers

1. Television Receive Only

2. No. There is no number 8 in the octal system of counting. In octal, 8 is represented by 10.

3. 1.0 = 100

4. Slew rate

5. Approximate bandwidth = 0.35/rise time = 0.35/0.02 x 10-6 = 17.5MHz

6. A synchronous counter

7. Choice B is correct.

8. The inductance becomes 2L. The equation in choice A is for two coils with inductive coupling.

9. Dummy load

10. A Wein Bridge circuit