Aheated cylinder, 2.5 inch long and 0.5 inch in diameter, is exposed to an air stream in cross flow arrangement having air speed of 15 m/sec. if the cylinder surface temperature is 50 oc and the air temperature is 22 oc. assume the atmospheric pressure is 14.6 psia. determine the reynolds number.

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation

What is creep? what is stress relaxation?