The end station for Wayside is 142+25. if a mile is 5,280 feet, how many miles is the project area for Wayside? I don't understand what the 142+25 means on this question. This is a question related to a roadside repair plan set.

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented

The higher the astm grain size number, the finer the gran is. a)-true b)-false