Discussion
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- Question
Which type of transformer is required to create a 180 degree input to a rectifier?
Options- A. center-tapped secondary
- B. step-down secondary
- C. stepped-up secondary
- D. split winding primary
- Correct Answer
- center-tapped secondary
- 1. How many valence shell electrons are there in semiconductor atoms?
Options- A. 16
- B. 8
- C. 4
- D. 2 Discuss
- 2. Resistor tolerance is either printed on the component, or is provided by:
Options- A. keyed containers
- B. size
- C. color code
- D. ohmmeter reading Discuss
- 3. The truth table for an S-R flip-flop has how many VALID entries?
Options- A. 3
- B. 1
- C. 4
- D. 2 Discuss
- 4. Precision refers to the difference between the measured value and the accepted value.
Options- A. True
- B. False Discuss
- 5. If a branch opens in a parallel circuit, the total circuit resistance decreases.
Options- A. True
- B. False Discuss
- 6. Which is the smallest?
Options- A. atom
- B. proton
- C. neutron
- D. electron Discuss
- 7. A diode can be tested with an ohmmeter.
Options- A. True
- B. False Discuss
- 8. When resistors burn out, they usually short.
Options- A. True
- B. False Discuss
- 9. The natural elements carbon, germanium, and silicon are semiconductors.
Options- A. True
- B. False Discuss
- 10. Current actually flows into or out of a virtual ground.
Options- A. True
- B. False Discuss
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Correct Answer: False
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