The Coffee Break Quiz - A challenging selection of General Engineering questions and answers -
sometimes you just don't know what you don't know, but you're sure that you did know or that you should know and when you see the answers you know that once upon a time you probably did know !

Challenge your colleagues - can they answer more than you ?

1. In Gear terminology, the distance from the bottom of a gear or sprocket to the the Pitch Circle Diameter is called the – a) Addendum  b) Dedendum  c) Apex  d) Face
2. The Phase Transition of an element or compound from liquid to gas is called – a)Vaporisation b) Distillation  c) Sublimation  d) Condensation
3. In Electrical Engineering, a switch may be abbreviated to "DPDT" - what does this mean
4. Based on changing colors, what is one of the oldest forms of pH indicator , used to test liquids for acidity. 
5. What name is given to an atom or molecule in which the total number of electrons is not equal to the total number of protons , thus giving it a net positive or negative electrical charge 
) ion  b) iron  c)  icon  d) item
6. What characteristic of a material is measured by the Brinell scale
 -  a) Tensile Strength  b) Compressive Strength  c) Shear Strength d) Hardness
7. Gravimetric Analysis describes a set of methods in analytical chemistry for the quantitative determination of an analyte based on the mass of a solid - True or False
8. Can atmospheric gases such as nitrogen and oxygen dissolve in water - yes or no
9. A “Propellor” is the name given to a rotor which is typically located inside of a tube or pump housing and is used to increase the pressure and/or flow of a liquid – True or False
10. Rheology is the name given to the ability of liquids to mix in all proportions thus forming a homogeneous  solution
 True or False

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ANSWERS
1) b) Dedendum  2 ) a) Vaporisation  3) Double Pole, Double Throw  4) Litmus Paper  5) a) Ion  6) d) Hardness  7) True  8) Yes  9) False the rotor is called an Impeller  10) False – Miscibility is the name given to the ability of liquids to mix in all proportions thus forming a homogeneous  solution