There are two questions about solidworks.
1. why is it good practice to fully define
sketchgeometry?
2. describe what happens if you do not select a planeprior to
clicking on the sketch icon when creating a sketch.

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Different between right hand turning tool and left hand turning tool ?

An air-conditioning system consists of a heating section and an evaporative cooler. air enters the heating section at 10°c and 70 percent relative humidity at a rate of 30m^3/min, and it leaves the evaporative cooler at 20°c and 60 percent relatively humidity. if the air conditioning system operates at a total pressure of 98 kpa, determine (a) the temperature and relative humidity of the air when it leaves the heating section, (b) the rate of heat transfer in the heating section, and (c) the rate of water added to air in the evaporative cooler