Consider the differential equation: x 00 + 2kx0 + x = 0; x(0) = 0, x0 (0) = b where primes denote differentiation with respect to time, t. Find the solution of the differential equation for the cases (i) k2 > 1, (ii) k2 < 1 and (iii) k2 = 1.

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)

True or false (explain) (110)[111] is a slip system in bcc metals . the {111} family in fcc contains 8 planes. resolved shear stress (rss) in single crystals is just related to the applied stress. critical resolved shear stress (crss) in single crystal metals is direct proportional to the number of defects in the structure