A. Why is it important to know if a mechanism has a single degree of freedom?
b. Why is a crank-rocker mechanism more useful than a double-rocker mechanism?
c. Should the transmission angle for the planar four-bar linkage be close to 0°? Explain?

Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet