What are employers required to do to keep employees safe from caught-in and -between hazards from hand-held power tools?
Select the 2' answer options that apply.

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

The higher the astm grain size number, the finer the gran 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.