1. Robert Stirling had a day job. It was: 
a) minister of the church of Scotland 
b) clerk in the Swiss patent office
c) engineer for the B&O Railroad 
d) professor at MIT

Robert Stirling’s primary job was being a minister for the Church of Scotland. Invention was his sideline.
 
2. Robert Stirling named the Stirling engine after himself.
true
false

In 1816 Robert Stirling called his new engine, “A new type of hot air engine with economiser.” These engines weren’t called Stirling engines until the 1930s.

3. The lowest temperature differential to ever power a Stirling engine was: 
a) 30 degrees F
b) 15 degrees F
c) 5 degrees F
d) < 1 degree F

This impressive accomplishment was achieved by Professor James Senft of the University of Wisconsin River Falls. 

4. The largest Stirling engine ever built was: 
a) 250 horsepower
b) 500horsepower
c) 1000 horsepower 
d) 10,000 horsepower

5. Stirling engines can be reversed and used as refrigerators?
true
false

Stirling engines are reversible machines. If you connect an electric motor to the output shaft one end will get hot and the other end will
get cold.

6. Choose the best answer. Stirling engines have: 
a) flown in seat 23-C of an airliner
b) been in space 
c) powered one of the first French built aircraft 
d) powered a radio control model aircraft 
e) definitely A, B, and D, but maybe C, too

7. How many parts are there in the American Stirling engine model MM-1?
a) 12
b) 26
c) 37 
d) 49

The engine is much more complicated than it appears at first glance. However the MM-5 kit comes with 9 parts pressed in place and the diaphragm (8 parts) pre-assembled.

8. The highest power Stirling engine in use today powers a: 
a) Mack Truck
b) locomotive 
c) luxury cruise ship
d) submarine – (Click Here For More Info) 

9. Robert Stirling’s most important invention was the Stirling engine?
true
false  (His most important invention was probably the regenerator.)

Thank you for taking the Stirling quiz!