Quantities and Units problems
- 1. Which of the following metric prefixes could replace 10?9?
Options- A. Nano
- B. Mega
- C. Kilo
- D. Micro Discuss
Correct Answer: Nano
- 2. Adding 27.5 × 103 to 8.9 × 104 equals
Options- A. 36.4 × 107
- B. 116.5 × 104
- C. 28.39 × 103
- D. 1.165 × 105 Discuss
Correct Answer: 1.165 × 105
- 3. 7200 mV is the same as
Options- A. 7.2 µV
- B. 7.2 V
- C. 7,200,000 V
- D. 0.0072 µV Discuss
Correct Answer: 7.2 V
- 4. The difference between scientific and engineering notation is
Options- A. powers of ten representation
- B. single vs. multiple digits before decimal point
- C. groupings of multiples of three digits
- D. All of the above Discuss
Correct Answer: All of the above
- 5. Derived units are obtained from various combinations of
Options- A. electrical quantities
- B. fundamental units
- C. metric prefixes
- D. international standards Discuss
Correct Answer: fundamental units
- 6. Add 21 mA and 8000 µA and express the result in milliamperes.
Options- A. 21.8 mA
- B. 218 mA
- C. 29 mA
- D. 290 mA Discuss
Correct Answer: 29 mA
- 7. The unit for frequency is the
Options- A. hertz
- B. ampere
- C. watt
- D. second Discuss
Correct Answer: hertz
- 8. Subtracting 18 × 102 from 480 × 101 results in 30 × 102.
Options- A. True
- B. False Discuss
Correct Answer: True
- 9. The coulomb is the unit for charge.
Options- A. True
- B. False Discuss
Correct Answer: True
- 10. Only electrical quantities have symbols associated with them.
Options- A. True
- B. False Discuss
Correct Answer: False
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