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. Hydrated magnesium sulphate is better known as Epsom Salts - True or False
2. Heat is energy transferred from one system  to another by vibratory interaction - True or False
3. In Roman Numerals, "L" equals what number - a) 50  b) 100  c) 500  d) 1000
4. A Ballistic vest is more commonly called a - a) Bulletproof Vest  b) Thermal Vest  c) Buoyancy Vest  d) Flouro Vest
5. Deliquescent materials are substances which have a strong affinity  for odour and will absorb relatively large amounts if exposed to ambient odours - True or False
6. A Geissler tube is an early gas discharge tube used to demonstrate the principles of electrical glow discharge  - True or False
7. What name is given to the protective insert used to prevent damage to electrical wires, cord, rope etc which pass through holes in sheet metal or similar materials  - a) grommet  b) sleeve  c) cover  d) protector
8. Pyroelectric sensors are used to activate fire sprinkler systems - True or False
9. In mathematics, interpolation is a technique for graphing specific measured data points  - True or False
10. A cold chisel would typically be used in - a) horticulture  b) metal working  c) decorating d) carpet laying

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ANSWERS

1) True  2) False - It is by thermal interaction  3) a) 50  4) a) Bulletproof Vest  5) False - they have a strong affinity  for moisture     6) True  7) a) grommet  8) False - they detect infrared energy and are typically used in motion sensing applications  9) False - it is a method of estimating data points which may fall between measured data points  10) b) metal working