Let = + where and are two periodic signals with fundamental periods of t1 and t2 seconds (not necessarily equal).

a. what is the condition for t1/t2 so that is periodic?
b. what is the period of in terms of t1 and t2?

Hydraulic fluid with a sg. of 0.78 is flowing through a 1.5 in. i. d. pipe at 58 gal/min. the fluid has an absolute viscosity of 11.8 x 105 lbf-sec/ft2. is the flow laminar, turbulent or within the critical range? give both a numerical reynolds number and a term answer.

What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information

Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false