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 ?


1/4" is equal to 12.7 millimeters – True or False

1/4” = 6.35mm

Rare Earth magnets were first developed by the ancient Chinese - True or False

They were developed in 1970s and 1980s

In Physics, an Orbit is defined as the gravitationally curved path of an object around a point in space – True or False

In Electrical Engineering - Current is defined as the amount of charge that flows past a give point, per unit of time. - True or False

In Mechanical Engineering - Plug, Taper and Bottoming taps are used for...

The Henry is the SI derived unit of Inductance - True or False

In maths and computer science, the binary numeral system, represents numeric values using two symbols twice - therefore a total of 4 individual symbols - True or False

The binary system uses 2 symbols - 0 and 1

Refraction is the change in direction of a wave due to a change in its medium - True or False

Trapped Key Interlocking is a method of ensuring safety in industrial environments by forcing the operator through a predetermined sequence using a defined selection of keys, locks and switches - True or False

A latch is a type of mechanical device designed to prevent two (or more) objects or surfaces from joining together - True or False

It is designed to hold objects or surfaces together but with a quick release ability