For the next few questions, examine the following code: 1 ADD X1, X2, X3 2 SUB X2, X1, X5 3 LDUR X8, [X5, 0] 4 ADD X7, X8, X6 Assuming hardware hazard detection and no forwarding hardware, what is the CPI of this code (you may assume that this is in the middle of a long string of instructions so initial pipeline fill time is 0).

The temperature of air decreases as it is compressed by an adiabatic compressor. 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.

Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?