The Coffee Break Hard Trivia Quiz – A challenging selection of General Engineering Trivia 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 ?


In fluid dynamics, a vortex is a region within a fluid where the flow is mostly a reciprocal motion about an imaginary axis - True or False

It is when the flow is mostly a spinning motion about an imaginary axis 

In Euclidean plane geometry, a Quadrilateral is a polygon with eight sides and eight corners - True or False

It is a a polygon  with four sides and four corners

In Mechanical Engineering - When cutting a screw thread into a hole, the hole will always be drilled a larger diameter than the nominal thread size - True or False

The hole needs to be drilled a smaller diameter

The Joule is a derived unit of luminous intensity in the International System of Units True or False

It is a derived unit of energy , work , or amount of heat

The Binary Numeral System was developed in Europe in the 16th and 17th centuries – True or False

Binary Numbers have appeared much earlier in multiple cultures including ancient Egypt, China, and India.

Flame Hardening is a processes in which the surface of a steel component is heated to a high temperature then allowed to cool slowly - True or False

It is cooled rapidly

Optics is the branch of physics which involves the behaviour and properties of Sound - True or False

It is Light

A Toggle Bolt is a fastener  for hanging things on hollow walls such as drywall . - True or False

The Apollo program was the second human spaceflight program carried out by NASA - True or False

It was the Third

The number 10 to the power of 24 has the unit symbol "Yotta" - True or False