Gasoline flows through the 2 cm diameter hose in a gas station at a speed of 0.7 m/s. if the gas tank in my car has a capacity of 10.6 gallons (0.04 m3), how long does it tank to fill my gas tank? if the density of gasoline is 708 kg/m3, what is the mass flow rate of gasoline in the hose?

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

Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.

The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length