SI Units – Definition
SI units are the System International Units used in basic electronics study. The electrical units are used to measure the value of any quantity.
We are providing you Electronics Encyclopedia related to the MCQ Questions on SI Units – System International Units for especially to improve and preparation of all kinds of quizzes or tests. If you are willing to learn the concepts of Basic Electronics MCQs multiple choice questions with answer then read all the 38 MCQs completely. You will be surely qualify for all kinds of Quiz / tests / Interviews after understanding the principle of SI Units. If you are a students, technician or teacher then you can learn the basic concept of electrical unit principle, function and applications.
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SI Units MCQs (Questions and Answers)
Q1. The SI unit of current is _____________.
- candela
- ampere
- volt
- mol
Answer: b
Q2. The SI unit of length is meter. True / False
Answer: True
Q3. The unit of Luminous intensity is ___________.
- candela
- mol
- kelvin
- metro
Answer: a
Q4. The SI unit of mass is kilogram. True / False
Answer: True
Q5. The SI unit of temperature in basic electronics is _____________.
- kelvin
- candela
- kilogram
- mol
Answer: a
Q6. The unit of time is second. True / False
Answer: True
Q7. The unit of matter is_________________.
- mol
- candela
- ampere
- kelvin
Answer: a
Q8. The unit of capacitance is Farad. True / False
Answer: True
Q9. ___________ is the unit of electric charge.
- mol
- coulomb
- farad
- ampere
Answer: b
Q10. The electrical unit of energy is joule. True / False
Answer: True
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Q11. __________ is the unit of force.
- kelvin
- henry
- lumen
- newton
Answer: d
Q12. The electrical unit of frequency is Hertz. True / False
Answer: True
Q13. The unit of illuminance is _______________.
- lux
- hertz
- henry
- weber
Answer: a
Q14. Henry is the unit of inductance. True / False
Answer: True
Q15. Lumen is the unit of ___________.
- luminance flux
- flux density
- magnetic flux
- power
Answer: a
Q16. Weber is the unit of magnetic flux. True / False
Answer: True
Q17. The unit of magnetic flux density is_______________.
- tesla
- lumen
- weber
- henry
Answer: a
Q18. The electrical unit of potential difference is volt. True / False
Answer: True
Q19. _____________ is the unit of true power.
- watt
- tesla
- ohm
- volt
Answer: a
Q20. The unit of resistance is ohm. True / False
Answer: True
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Q21. The unit of the solid angle is ___________.
- steradian
- mol
- lumen
- tesla
Answer: a
Q22. Angle is measure in Degree or Radian. True / False
Answer: True
Q23. The unit of conductivity is _____________.
- Siemens per meter
- Tesla per meter
- Mol per meter
- Ampere per meter
Answer: a
Q24. The SI unit of electro-motive force (EMF) is volt. True / False
Answer: True
Q25. The unit of Resistivity is ____________.
- ohm
- ohm-square meter
- ohm meter
- Siemens per meter
Answer: c
Q26. The unit of capacitive Reactance is ohm. True / False
Answer: True
Q27. The unit of inductive reactance is _______________.
- farad
- henry
- ohm
- ohm per henry
Answer: c
Q28. The unit of impedance is ohm. True / False
Answer: True
Q29. The unit of resonant frequency is ____________.
- ohm
- hertz per meter
- hertz
- lumen per meter
Answer: c
Q30. The unit of noise is dB. True / False
Answer: True
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Q31. Oersted is the unit of ____________.
- auxiliary magnetic field
- flux density
- magnetic flux
- all are correct
Answer: a
Q32. The unit of conductance is Mho/Siemens. True / False
Answer: True
Q33. The unit of admittance is ____________.
- siemens
- ampere
- mho
- ampere per meter
Answer: a
Q34. The SI unit for MMF is Amp-Turn. True / False
Answer: True
Q35. The unit of Reactive Power is ____________.
- VAR (Volt-Amp-Reactive)
- VI
- Watt
- VAC
Answer: a
Q36. Apparent power is measured in volt-amp. True / False
Answer: True
Q37. The unit of Power Factor is ____________.
- watt
- siemens
- VAR
- No unit
Answer: d
Q38. There is no unit of coefficient of coupling. True / False
Answer: True