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- Question
What is the kilowatt-hour consumption of a 40 W lamp if it remains on for 1750 h?
Options- A. 43.75
- B. 70
- C. 43,750
- D. 70,000
- Correct Answer
- 70
Explanation(1,750 x 40)/1000 = 70 kilowatt-hour. - 1. Clampers are often called peak detectors.
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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