Quantities and Units Online Test – Multiple Choice Questions and Answers Posted on April 16, 2024April 16, 2024 by engineer2 Comments 1. If you drop a 5 when rounding a number, you are using the retained digit rule significant digit rule round-to-even rule round-off rule 2. The number 14.8 can also be expressed as 1.48 × 10^{-1} 1.48 × 10^{1} 1.48 × 10^{0} 1.48 × 10^{2} 3. The unit for frequency is the second ampere hertz watt 4. The digits in a measured number that are known to be correct are called error digits accuracy digits significant digits precision digits 5. Pico is what relation to micro? one-millionth one-thousandth one-hundredth one-tenth 6. Current is measured in volts watts henries amperes 7. Derived units are obtained from various combinations of fundamental units international standards electrical quantities metric prefixes 8. The difference between scientific and engineering notation is groupings of multiples of three digits single vs. multiple digits before decimal point powers of ten representation all 9. A measure of the repeatability of a measurement of some quantity is accuracy significant error precision 10. Another name for “fundamental units” is letter symbols base units atoms the metric system Loading … Question 1 of 10

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