Q 01/05

Which animated sitcom follows a propane salesman and his family in the fictional town of Arlen, Texas?

A) The Cleveland Show

B) King of the Hill

C) Family Guy

D) Bob's Burgers

Answer · why

B) King of the Hill

King of the Hill gave its hero a job at Strickland Propane, and the writers researched the trade closely. The real propane industry came to see him as...

Q 02/05

Propane has no smell of its own, so suppliers add a chemical that makes leaks smell like what?

A) Rotten eggs

B) Sour milk

C) Burnt rubber

D) Wet paint

Answer · why

A) Rotten eggs

Rotten eggs is the usual description of ethyl mercaptan, the sulfur compound blended into propane. Without the additive a leak would give no warning a...

Q 03/05

Propane is the primary fuel carried aloft in cylinders by pilots of which kind of aircraft?

A) Motor gliders

B) Powered paragliders

C) Hot-air balloons

D) Gyrocopters

Answer · why

C) Hot-air balloons

Hot-air balloons carry propane to feed the burner under the envelope. Light bottled-propane burners are what let pilots reheat the air in flight and s...

Q 04/05

Which Californian inventor built the first ice resurfacer, a rink machine that today often runs on propane?

A) Earl Tupper

B) Frank Zamboni

C) Willis Carrier

D) George Stephen

Answer · why

B) Frank Zamboni

Frank Zamboni built his first resurfacer in 1949 in Paramount, California. His surname became a genericized trademark, the everyday word for the machi...

Q 05/05

In campers and off-grid cabins, which appliance often runs on the heat of a small propane flame?

A) Refrigerator

B) Washing machine

C) Ceiling fan

D) Water pump

Answer · why

A) Refrigerator

Refrigerator cooling can be driven by heat alone in an absorption unit, so a propane burner stands in for the electric motor. The silent design is com...