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Home ‣ Electronics ‣ Bipolar Junction Transistors (BJT) See What Others Are Saying!
- Question
When troubleshooting a bipolar junction transistor using an ohmmeter, if one of the junctions reads low in both directions, the junction is shorted and the transistor is bad. If one of the junctions reads high in both directions, the junction is shorted and the transistor is good.
Options- A. True
- B. False
- Correct Answer
- False
- 1. What procedure should be followed when troubleshooting with an ammeter or voltmeter?
Options- A. Short the leads and adjust.
- B. Check the meter's external power supply.
- C. Start with the highest scale and adjust down to a lower scale.
- D. Start with the lowest scale and adjust up to a higher scale. Discuss
- 2. Voltage-divider bias provides:
Options- A. an unstable Q point
- B. a stable Q point
- C. a Q point that easily varies with changes in the transistor's current gain
- D. a Q point that is stable and easily varies with changes in the transistor's current gain Discuss
- 3. Kirchhoff's voltage law states that:
Options- A. the sum of the voltage drops in a series circuit is equal to the total applied voltage
- B. the algebraic sum of the resistances is equal to the sum of the voltages
- C. the algebraic sum of the individual currents around a closed loop is zero
- D. the voltages developed across each element in a series circuit are identical Discuss
- 4. Clampers are often called peak detectors.
Options- A. True
- B. False Discuss
- 5. A transformer that has 700 turns in the primary and 35 turns in the secondary has a turns ratio of 20:1.
Options- A. True
- B. False Discuss
- 6. The operands in an addition operation consist of the augend and the addend.
Options- A. True
- B. False Discuss
- 7. In a BJT, the collector current is approximately equal to the base current.
Options- A. True
- B. False Discuss
- 8. A sine wave has:
Options- A. four quadrants
- B. two alternations
- C. one period
- D. all of the above Discuss
- 9. The greater the selectivity, the wider the bandwidth.
Options- A. True
- B. False Discuss
- 10. The unit of magnetic flux density is the weber.
Options- A. True
- B. False Discuss
More questions
Correct Answer: Start with the highest scale and adjust down to a lower scale.
Correct Answer: a stable Q point
Correct Answer: the sum of the voltage drops in a series circuit is equal to the total applied voltage
Correct Answer: False
Correct Answer: True
Correct Answer: True
Correct Answer: False
Correct Answer: all of the above
Correct Answer: False
Correct Answer: False
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