Def print ruler(in) This function is given a positive integer n, and prints a vertical ruler of 2! − 1 lines. Each line contains ‘-‘ marks as follows: • The line in the middle (! " ) of the ruler contains n ‘-‘ marks • The lines at the middle of each half (! # and $ # ) of the ruler contains (n-1) ‘-‘ marks • The lines at the ! % , $ % , & % and ' % of the ruler contains (n-2) ‘-‘ marks • And so on … • The lines at the ! "(, $ "(, & "(, ..., "()! "( of the ruler contains 1 ‘-‘ mark

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

Calculate the bore of a cylinder that has a stroke of 18 inches and an extension time of 6 seconds at a flow rate of 4 gal/min.

Consider a 1.2 meter high and 2 meter wide glass window whose thickness is 6 mm and thermal conductivity is 0.78 w/m °c. the room temperature is maintained at 24 °c, while the outdoor temperature is -5 °c. the convective heat transfer coefficients on the inner and outer surfaces of the window are 10 w/m2 °c and 25 w/m2 °c respectively. (a) draw the thermal resistance network, etermine the steady rate of heat transfer t e glass window (c) determine the temperature of the inner surface of the window