RRB Group D - Units and measurements Online Test (MCQ Quiz)

1. Which of the following is the SI unit of length?

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

2. The SI unit of mass is:

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

3. What is the SI unit of time?

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

4. Which unit is used to measure electric current in the SI system?

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

5. The SI unit of temperature is:

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

6. What is the SI unit of luminous intensity?

A) Lux B) Lumen C) Candela D) Foot-candle

7. The SI unit of the amount of substance is:

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

8. Which of the following is a derived SI unit?

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

9. What does the prefix 'kilo' represent in the metric system?

A) 10^-3 B) 10^3 C) 10^6 D) 10^-6

10. The prefix 'milli' represents a factor of:

A) 10^-3 B) 10^3 C) 10^-6 D) 10^6

11. What is the value of the prefix 'micro'?

A) 10^-3 B) 10^-6 C) 10^-9 D) 10^-12

12. Which prefix denotes 10^9?

A) Mega B) Giga C) Tera D) Peta

13. The unit of force is:

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

14. What is the SI unit of pressure?

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

15. Energy is measured in which SI unit?

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

16. The SI unit of power is:

A) Joule B) Watt C) Erg D) Calorie

17. What is the SI unit of frequency?

A) Hertz B) Decibel C) Radian D) Cycle per second

18. Which unit is used to measure electrical resistance?

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

19. The SI unit of capacitance is:

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

20. What is the SI unit of magnetic flux?

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

21. The unit of inductance is:

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

22. Which SI unit measures the magnetic flux density?

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

23. What is the SI unit of work?

A) Watt B) Joule C) Erg D) Newton-meter

24. The SI unit of area is:

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

25. What is the SI unit of volume?

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

26. Which of the following is a non-SI unit of length commonly used in astronomy?

A) Kilometer B) Mile C) Light-year D) Furlong

27. The unit of angular displacement is:

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

28. What is the SI unit of angular velocity?

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

29. The SI unit of acceleration is:

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

30. What is the SI unit of density?

A) Kilogram per meter B) Kilogram per meter cubed C) Gram per cubic centimeter D) Kilogram per liter

31. The unit of surface tension is:

A) Newton per meter B) Joule per meter C) Newton per meter squared D) Pascal

32. What is the SI unit of viscosity?

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

33. Which unit measures radioactivity?

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

34. What is the SI unit of absorbed dose of ionizing radiation?

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

35. The SI unit of equivalent dose of ionizing radiation is:

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

36. What is the SI unit of sound intensity level?

A) Neper B) Bel C) Decibel D) Sone

37. The unit of kinematic viscosity is:

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

38. What is the unit of dynamic viscosity?

A) Stokes B) Poise C) Pascal-second D) Newton-meter

39. Which of the following is a unit of plane angle, but not an SI unit?

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

40. What is the SI unit of electric potential difference?

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

41. The SI unit of electric charge is:

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

42. What is the SI unit of electric field strength?

A) Newton per Coulomb B) Volt per meter C) Ampere per meter D) Coulomb per meter

43. The SI unit of magnetic field strength is:

A) Weber B) Tesla C) Ampere per meter D) Gauss

44. What is the SI unit of magnetic flux density?

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

45. The SI unit of solid angle is:

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

46. What is the SI unit of impulse?

A) Newton-second B) Joule-second C) Newton-meter D) Kilogram-meter

47. Which unit is used to measure luminous flux?

A) Lux B) Candela C) Lumen D) Foot-candle

48. What is the SI unit of illuminance?

A) Lumen B) Candela C) Lux D) Foot-candle

49. The unit of surface area is:

A) Meter B) Square meter C) Cubic meter D) Meter squared

50. What is the SI unit of volume flow rate?

A) Cubic meter per second B) Liter per second C) Gallon per minute D) Cubic meter per minute

Units and measurements - Online Test

Test Results