System International Units
 1. In which year, the SI (System International d`units) was recommended by the general conference on weights and measures?  a) 1966  b) 1959  c) 1960  d) 1961   Ans: c   2. What is the SI Unit of Length?  a) second  b) gram  c) mole  d) meter   Ans: d   3. What is the SI Unit of Mass?  a) mole  b) kilogram  c) second  d) ampere   Ans: b   4. What is the unit of Electric current?  a) ampere  b) Kelvin  c) candela  d) radian   Ans: a   5. Candela is the unit for which quantity?  a) Temparature  b) Plane angle  c) Solid angle  d) Luminous Intensity   Ans: d   6. Among the following, which one is the supplemantary unit?  a) steradian  b) mole  c) second  d) meter   Ans: a   7. What is the unit of Solid angle?  a) candela  b) ammeter  c) Kelvin  d) steradian   Ans: d   8. What is the unit for derived quantity, Area?  a) cubic meter  b) meter per second  c) square meter  d) mole per cubic meter   Ans: c   9. What is the unit of derived quantity, Luminance (Light)?  a) candela per square met...