More Railway “Howlers.”

The following are some additional “howlers” collected by a member of the Department's technical staff concerned with the marking of apprentice examination papers.

“The safe edge of a file means the lines run both ways.”

“An articulated locomotive is one that has an element in the boiler to superheat the steam.”

“An articulated locomotive has two cylinders in the cab and drives itself along and also drives a winch for pile driving.”

“The oil fired furnace is perhaps the best of all as it requires no stroking.”

“Make sure the cab is clear of all the mountains on the face plate of the boiler.”

“Latent heat is the heat required to keep the water boiling without evapouring it.”

“The vernier is a instrument much more accurate than a microscope.”

“Saturated steam is just ordinary steam driving straight to the piston and the superheated steam is compressed and used when needed.”

“Saturated steam is steam immediately above the water and is very ready to condense to water again and is therefore no good for cooking purposes.”