JEE Main - System of units and SI units Online Test (MCQ Quiz)

1. Which of the following is NOT a fundamental unit in the SI system?

A) Meter B) Kilogram C) Second D) Newton

2. The SI unit of luminous intensity is:

A) Lux B) Candela C) Lumen D) Steradian

3. What is the SI unit of electric current?

A) Volt B) Ohm C) Ampere D) Watt

4. The SI unit of thermodynamic temperature is:

A) Celsius B) Fahrenheit C) Kelvin D) Rankine

5. Which of the following is a derived unit in the SI system?

A) Meter B) Kilogram C) Second D) Joule

6. The SI unit of mass is:

A) Gram B) Milligram C) Kilogram D) Tonne

7. The SI unit of time is:

A) Minute B) Hour C) Second D) Day

8. Which SI unit is used to measure the amount of substance?

A) Gram B) Liter C) Mole D) Kilogram

9. The SI unit of force is:

A) Dyne B) Newton C) Pascal D) Bar

10. What is the SI unit of pressure?

A) Bar B) Pascal C) Torr D) Atmosphere

11. The SI unit of energy is:

A) Calorie B) Erg C) Joule D) Kilowatt-hour

12. Which of the following represents the SI unit of power?

A) Joule per second B) Watt C) Kilowatt D) All of the above

13. The SI unit of electric resistance is:

A) Siemens B) Ohm C) Farad D) Henry

14. What is the SI unit of electric charge?

A) Ampere B) Volt C) Coulomb D) Farad

15. The SI unit of electric potential difference is:

A) Ampere B) Ohm C) Watt D) Volt

16. Which SI unit measures capacitance?

A) Henry B) Farad C) Weber D) Tesla

17. The SI unit of magnetic flux is:

A) Tesla B) Gauss C) Weber D) Henry

18. What is the SI unit of inductance?

A) Farad B) Ohm C) Henry D) Siemens

19. The SI unit of frequency is:

A) Radian B) Hertz C) Cycle D) Baud

20. Which SI unit is used for angular displacement?

A) Degree B) Radian C) Gradian D) Revolution

21. The SI unit of angular velocity is:

A) Degrees per second B) Revolutions per minute C) Radians per second D) Hertz

22. What is the SI unit of angular acceleration?

A) Radians per second squared B) Degrees per second squared C) Revolutions per minute squared D) Hertz per second

23. The SI unit of surface tension is:

A) N/m B) N/m^2 C) J/m D) J/m^2

24. Which SI unit is used to measure viscosity?

A) Poise B) Pascal-second C) Stokes D) Centipoise

25. The SI unit of heat capacity is:

A) Joule/Kelvin B) Joule/Celsius C) Calorie/Kelvin D) Watt/Kelvin

26. What is the SI unit of specific heat capacity?

A) Joule/kg B) Joule/kg-K C) Calorie/g-°C D) Joule/K

27. The SI unit of luminous flux is:

A) Lux B) Candela C) Lumen D) Steradian

28. Which SI unit measures illuminance?

A) Lumen B) Candela C) Lux D) Nit

29. The SI unit of solid angle is:

A) Radian B) Degree C) Steradian D) Arcminute

30. What is the SI unit of radioactivity?

A) Curie B) Becquerel C) Rutherford D) Gray

31. The SI unit of absorbed dose of radiation is:

A) Sievert B) Gray C) Rad D) Roentgen

32. Which SI unit is used for equivalent dose of radiation?

A) Gray B) Rad C) Sievert D) Roentgen

33. The SI unit of kinematic viscosity is:

A) m^2/s B) m/s C) Pa-s D) m^2/kg

34. What is the SI unit of dynamic viscosity?

A) m^2/s B) Pa-s C) m/s D) kg/m-s

35. The SI unit of surface energy is:

A) Joule B) Joule/meter C) Joule/meter^2 D) Watt

36. Which SI unit represents the SI base unit for length?

A) Centimeter B) Kilometer C) Meter D) Inch

37. The SI base unit for time is universally recognized as:

A) Hour B) Minute C) Day D) Second

38. What is the SI base unit for electric current?

A) Milliampere B) Ampere C) Kiloampere D) Volt

39. The SI base unit for thermodynamic temperature is:

A) Degree Celsius B) Kelvin C) Fahrenheit D) Rankine

40. Which of the following is an SI derived unit for area?

A) Hectare B) Acre C) Square meter D) Are

41. The SI derived unit for volume is:

A) Liter B) Gallon C) Cubic meter D) Cubic centimeter

42. What is the SI derived unit for velocity?

A) Kilometers per hour B) Meters per second C) Miles per hour D) Feet per minute

43. The SI derived unit for acceleration is:

A) Meters per hour squared B) Meters per second squared C) Kilometers per second squared D) Feet per second squared

44. Which SI unit is used to measure magnetic field strength?

A) Weber B) Gauss C) Tesla D) Oersted

45. The SI derived unit for momentum is:

A) Newton-second B) Dyne-second C) Kilogram-meter D) Pound-foot

46. What is the SI derived unit for impulse?

A) Newton-meter B) Newton-second C) Joule-second D) Dyne-centimeter

47. The SI unit of luminous intensity is defined based on:

A) The luminosity of a specific star B) The radiation emitted by a black body at a specific temperature C) The energy radiated by a standard candle D) The power of a specific light bulb

48. Which of the following systems of units is most widely adopted in scientific and technical fields globally?

A) CGS system B) FPS system C) MKS system D) SI system

49. The SI unit for amount of substance, the mole, is defined as:

A) The number of atoms in 12 grams of Carbon-12 B) The number of molecules in 18 grams of water C) The number of entities in 0.012 kilograms of Carbon-12 D) The number of protons in one gram of hydrogen

50. Which SI unit is derived from the base units of meter, kilogram, and second?

A) Watt B) Joule C) Newton D) Pascal

System of units and SI units - Online Test

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