Online Test for 4362 Lab Assistant Jobs in Government Schools - 21


Science
  1. Which of the following people is credited as being the father of mass production?
    1.  Otto Graham
    2.  Henry Ford
    3.  Eli-Whitney
    4.  Thomas Edison

  2. What is 1 followed by 12 zeros?
    1.  Quardrillion
    2.  Septillion
    3.  Million
    4.  Trillion

  3. what is 1 followed by 18 zeros?
    1.  Quintillion
    2.  Million
    3.  Trillion
    4.  Octillion

  4. What form of radiation most closely resembles X0-rays?
    1.  Alpha
    2.  Beta
    3.  Neutron
    4.  Gamma

  5. The most abundant organic molecule on the surface of the Earth is :
    1.  Hemoglobin
    2.  Chitin
    3.  DNA
    4.  Cellulose

  6. The specific gravity of mercury at Standard Temperature and Pressure is:
    1.  19.3
    2.  13.6
    3.  13.06
    4.  4.0

  7. The region of the United States with the lowest pH values found in rainwater (acid rain) is:
    1.  South West
    2.  North West
    3.  North East
    4.  South East

  8. Thermal insulation is used to:
    1.  Stop the flow of heat
    2.  Reduce the flow of heat
    3.  Absorb Heat
    4.  Reduce the flow of Heat

  9. Which of the following building materials has the highest thermal conductivity?
    1.  Gybsum Board or Drywall
    2.  Common Brick
    3.  Aluminium
    4.  Southern pine wood

  10. Which two gases are used to disinfect water in sewage treatment facilities? 
    1.  Helium and Nitrogen
    2.  Ozone and Chlorine
    3.  Oxygen and Hydrogen
    4.  Ozone and Chlorine



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