Describe how a planar (2D) linkage with respectively 1 DOF, 2 DOF, 3 DOF will move. What does it mean to have a linkage with more degrees of freedom than the dimension of space it lies in?

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

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.

Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false