What is the SI unit of length?
- a) Meter
- b) Centimeter
- c) Kilometer
- d) Foot
Which of the following is the base unit of mass in the SI system?
- a) Gram
- b) Kilogram
- c) Pound
- d) Ton
The unit of time in the SI system is:
- a) Minute
- b) Hour
- c) Second
- d) Millisecond
The unit for electric current in the SI system is:
- a) Volt
- b) Ampere
- c) Ohm
- d) Coulomb
Which of the following is a base unit in the SI system?
- a) Mole
- b) Joule
- c) Newton
- d) Pascal
The unit for the amount of substance in the SI system is:
- a) Mole
- b) Gram
- c) Kilogram
- d) Liter
The luminous intensity in the SI system is measured in:
- a) Lumen
- b) Candela
- c) Lux
- d) Watt
What is the SI unit of thermodynamic temperature?
- a) Celsius
- b) Kelvin
- c) Fahrenheit
- d) Joule
The radian is the SI unit for:
- a) Plane angle
- b) Solid angle
- c) Angular velocity
- d) Frequency
The steradian is the SI unit for:
- a) Plane angle
- b) Solid angle
- c) Angular acceleration
- d) Intensity
Which system of units is internationally accepted for scientific work?
- a) CGS
- b) FPS
- c) MKS
- d) SI
In which year was the International System of Units (SI) established?
- a) 1960
- b) 1971
- c) 1983
- d) 2018
The definition of the meter is based on:
- a) The wavelength of light
- b) The speed of light
- c) The distance between two points
- d) The length of a rod
The definition of the second is based on:
- a) The vibration of a quartz crystal
- b) The rotation of the Earth
- c) The frequency of radiation from cesium atoms
- d) The swing of a pendulum
The kilogram is defined by:
- a) The mass of a platinum-iridium cylinder
- b) The mass of water
- c) The Planck constant
- d) The gravitational force
The SI unit for luminous intensity is defined by:
- a) The frequency of monochromatic light
- b) The intensity of sunlight
- c) The luminous efficacy of light
- d) The brightness of a standard candle
Which of the following units is not a base unit in the SI system?
- a) Meter
- b) Kilogram
- c) Second
- d) Newton
The unit of plane angle in the SI system is:
- a) Degree
- b) Radian
- c) Gradian
- d) Minute
Which unit is used to measure the solid angle?
- a) Radian
- b) Steradian
- c) Degree
- d) Gradian
The unit of electric charge in the SI system is:
- a) Volt
- b) Ampere
- c) Coulomb
- d) Ohm
The term 'dimensionless quantity' refers to:
- a) A quantity with no physical meaning
- b) A quantity with no unit
- c) A quantity that cannot be measured
- d) A quantity with infinite dimensions
The SI unit of frequency is:
- a) Hertz
- b) Newton
- c) Pascal
- d) Joule
Which of the following is a derived unit in the SI system?
- a) Meter
- b) Kilogram
- c) Newton
- d) Mole
The SI unit for pressure is:
- a) Atmosphere
- b) Pascal
- c) Bar
- d) Torr
The SI unit of energy is:
- a) Erg
- b) Calorie
- c) Joule
- d) Watt
The unit of force in the SI system is:
- a) Dyne
- b) Newton
- c) Pound-force
- d) Kilogram-force
Which of the following units is used to measure work done?
- a) Joule
- b) Watt
- c) Newton
- d) Pascal
The unit of power in the SI system is:
- a) Joule
- b) Watt
- c) Newton
- d) Erg
What is the unit of electric potential difference in the SI system?
- a) Volt
- b) Ampere
- c) Ohm
- d) Coulomb
Which of the following quantities is dimensionless?
- a) Speed
- b) Refractive index
- c) Force
- d) Mass
The unit of magnetic flux in the SI system is:
- a) Tesla
- b) Weber
- c) Gauss
- d) Maxwell
The SI unit for capacitance is:
- a) Farad
- b) Coulomb
- c) Henry
- d) Ohm
The unit of inductance in the SI system is:
- a) Weber
- b) Henry
- c) Tesla
- d) Farad
The unit of luminous flux in the SI system is:
- a) Candela
- b) Lumen
- c) Lux
- d) Watt
Which of the following is the unit for intensity of light?
- a) Candela
- b) Lumen
- c) Lux
- d) Watt
The unit of sound intensity level is:
- a) Hertz
- b) Decibel
- c) Pascal
- d) Watt
Which of the following is the correct unit for viscosity?
- a) Poise
- b) Pascal-second
- c) Newton-second
- d) Joule-second
The SI unit of surface tension is:
- a) Newton per meter
- b) Joule per meter
- c) Pascal per meter
- d) Erg per centimeter
What is the unit of specific heat capacity in the SI system?
- a) Joule per kilogram per degree Celsius
- b) Calorie per gram per degree Celsius
- c) Erg per gram per degree Celsius
- d) Joule per kilogram per Kelvin
The SI unit for the gravitational constant (G) is:
- a) N m²/kg²
- b) N m²/s²
- c) N/kg²
- d) N m/kg²
Which of the following is the unit for measuring electric resistance?
- a) Ohm
- b) Volt
- c) Ampere
- d) Watt
The SI unit of electric conductance is:
- a) Ohm
- b) Siemens
- c) Farad
- d) Henry
The unit of magnetic field strength in the SI system is:
- a) Tesla
- b) Weber
- c) Gauss
- d) Henry
The unit of radiation dose absorbed in the SI system is:
- a) Gray
- b) Sievert
- c) Becquerel
- d) Curie
The unit for radioactive decay activity in the SI system is:
- a) Curie
- b) Becquerel
- c) Gray
- d) Sievert
The unit of angle in the SI system is:
- a) Radian
- b) Degree
- c) Gradian
- d) Minute
What is the unit for energy in the CGS system?
- a) Erg
- b) Joule
- c) Calorie
- d) Watt
The SI unit of momentum is:
- a) kg m/s
- b) Newton
- c) Joule
- d) Watt
The unit of surface tension in the CGS system is:
- a) Dyne/cm
- b) Newton/m
- c) Pascal/m
- d) Erg/cm
The unit of entropy in the SI system is:
- a) Joule per Kelvin
- b) Calorie per Kelvin
- c) Erg per Kelvin
- d) Joule per Celsius
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