Electronics - Quantities and Units

Exercise :: Quantities and Units - General Questions

6. 

A measure of the repeatability of a measurement of some quantity is

A. error
B. precision
C. accuracy
D. significant

Answer: Option B

Explanation:

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7. 

Another name for "fundamental units" is

A. base units
B. atoms
C. the metric system
D. letter symbols

Answer: Option A

Explanation:

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8. 

Adding 27.5 × 103 to 8.9 × 104 equals

A. 36.4 × 107
B. 116.5 × 104
C. 28.39 × 103
D. 1.165 × 105

Answer: Option D

Explanation:

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9. 

When using the terms "accuracy" and "precision" for measurements

A. "precision" implies less measurement error than "accuracy"
B. "accuracy" implies less measurement error than "precision"
C. "precision" measures the repeatability of a measurement
D. both terms mean the same thing

Answer: Option C

Explanation:

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10. 

The difference between scientific and engineering notation is

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

Answer: Option D

Explanation:

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