Quantities and Units Questions and Answers

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Showing 10 of 23 questions
Q11
Which of the following is expressed in engineering notation?
  • A 470 × 105
  • B 82 × 10–2
  • C 9.1 × 10–6
  • D 14.7 × 108
Answer: Option C
Q12
The unit for frequency is the
  • A hertz
  • B ampere
  • C watt
  • D second
Answer: Option A
Q13
Add 21 mA and 8000 mu.gifA and express the result in milliamperes.
  • A 21.8 mA
  • B 218 mA
  • C 29 mA
  • D 290 mA
Answer: Option C
Q14
Pico is what relation to micro?
  • A one-tenth
  • B one-hundredth
  • C one-thousandth
  • D one-millionth
Answer: Option D
Q15
The number 560,000 is expressed in scientific notation.
  • A TRUE
  • B FALSE
Answer: Option B
Q16
Subtracting 18 × 102 from 480 × 101 results in 30 × 102.
  • A TRUE
  • B FALSE
Answer: Option A
Q17
The coulomb is the unit for charge.
  • A TRUE
  • B FALSE
Answer: Option A
Q18
Voltage, not current, determines the severity of an electrical shock.
  • A TRUE
  • B FALSE
Answer: Option B
Q19
Precision refers to the difference between the measured value and the accepted value.
  • A TRUE
  • B FALSE
Answer: Option B
Q20
4200 W is the same as 4.2 kW.
  • A TRUE
  • B FALSE
Answer: Option A

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