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. On Jan.26, 2015 -  asteroid 2004 BL86 will fly “relatively” close to Earth (745,000 miles) - The prefix 2004 in the name signifies that the asteroid was was first discovered in the year 2004 - True or False
  2. The Spruce Goose was - a) a Dirigible  b) a Glider  c) a Sea Plane   d) a Helicopter
  3. The numeral system used extensively in computing which has 16 digits :  0-9, A-F is called Hexadecimal - True or False
  4. The first practical portable electric vacuum cleaner was invented by The Hoover Company - True or False
  5. What is the common mineral whose chemical formula is NaC1
  6. The Watt is the unit of electrical power equal to one joule per second - True or False
  7. Construction Workers Hard Hats where first used on the Hoover Dam project in in 1933 - True or False
  8. In fluid mechanics , the Reynolds number is used to help predict similar flow patterns in different fluid flow situations.  The Reynolds number is measured in cubic meters per second - True or False
  9. 1 cubic foot of fresh water weighs 6.24 lb - True or False
  10. An Astrolabe is an instrument used to determine the altitude of objects in the sky such as the sun or stars - True or False


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ANSWERS

1) True - Jan.30, 2004  2) c) a Sea Plane  3) True 4) False - Vacuum cleaners evolved through several inventors and it is generally recognised that the first practical electric portable vacuum cleaner was developed by James Murray Spangler who sold the patent to William Henry Hoover
5) Salt  6) True  7) True  8) False - The Reynolds number is a dimensionless quantity  9) False - 1 cubic foot of fresh water weighs 62.54 lb  10) True