The Cu2MnAl alloy is ferromagnetic even though Mn itself is not. The Mn-Mn distance in this alloy is larger than for Mn metal. What effect does this have on the 3d band of Mn and therefore, why is this alloy ferromagnetic?

Which of the following is an easy way to remember the modified “x” tire rotation? a. nondrive wheels straight, cross the drive wheels b. drive wheels straight, cross the nondrive wheels c. drive wheels crossed, nondrive wheels straight d. drive wheels crossed, nondrive wheels crossed

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

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