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- Question
A logic probe is placed on the output of a gate and the display indicator is dim. A logic pulser is used on each of the input terminals, but the output indication does not change. What is wrong?
Options- A. The dim indication on the logic probe indicates that the supply voltage is probably low.
- B. The output of the gate appears to be open.
- C. The LOW indication is the result of a bad ground connection on the logic probe.
- D. The gate is a tri-state device.
- Correct Answer
- The output of the gate appears to be open.
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Options- A. True
- B. False Discuss
- 2. 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
- 3. The operands in an addition operation consist of the augend and the addend.
Options- A. True
- B. False Discuss
- 4. In a BJT, the collector current is approximately equal to the base current.
Options- A. True
- B. False Discuss
- 5. A sine wave has:
Options- A. four quadrants
- B. two alternations
- C. one period
- D. all of the above Discuss
- 6. The greater the selectivity, the wider the bandwidth.
Options- A. True
- B. False Discuss
- 7. The unit of magnetic flux density is the weber.
Options- A. True
- B. False Discuss
- 8. PROMs are volatile.
Options- A. True
- B. False Discuss
- 9. A monostable multivibrator must be triggered.
Options- A. True
- B. False Discuss
- 10. Generally, increasing the resistance in a circuit will decrease the current.
Options- A. True
- B. False Discuss
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