Common General Science
SI Units, Measurements & Scientific Instruments
15 questions on SI units, measuring instruments, and scientific quantities.
SI Units, Measurements & Scientific Instruments
15 questions · 8 minutes
08:00
Q1.SI unit of length is:
Explanation: Metre (m) is the SI unit of length.
Q2.SI unit of mass is:
Explanation: Kilogram (kg) is the SI unit of mass.
Q3.SI unit of time is:
Explanation: Second (s) is the SI unit of time.
Q4.Thermometer measures:
Explanation: Thermometer measures temperature. Invented by Daniel Fahrenheit.
Q5.Barometer measures:
Explanation: Barometer measures atmospheric pressure. Invented by Torricelli.
Q6.Anemometer measures:
Explanation: Anemometer measures wind speed. Used in meteorology.
Q7.Rain gauge measures:
Explanation: Rain gauge measures the amount of rainfall in millimetres.
Q8.Seismograph measures:
Explanation: Seismograph records earthquake waves (seismic waves).
Q9.The unit of electrical resistance is:
Explanation: Ohm (Ω) is the unit of electrical resistance. Named after Georg Ohm.
Q10.One horsepower equals approximately:
Explanation: 1 HP ≈ 746 watts. Used to measure engine power.
Q11.Light year is a unit of:
Explanation: Light year = distance light travels in one year (~9.46 trillion km). Unit of distance, not time.
Q12.The CGS unit of force is:
Explanation: Dyne is the CGS unit of force. Newton is the SI unit. 1 N = 100,000 dynes.
Q13.Sphygmomanometer measures:
Explanation: Sphygmomanometer (BP apparatus) measures blood pressure.
Q14.Decibel is a unit of:
Explanation: Decibel (dB) measures sound intensity/loudness.
Q15.Nautical mile is used to measure:
Explanation: Nautical mile (~1.852 km) is used in maritime and aviation navigation.
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