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1.Air at 37 psi and 60oF is being forced into a tire at a velocity of 180 ft/s through a ¼ in. diameter opening. The tire has a volume of 17 ft3. Determine the rate of change of density in the tire. (3.01 *10-5 slugs/ft3 s)
2.A centrifugal water pump has an impeller with r1 = 4”, r2 = 12”, ?1 = 160°, ?2 = 170°. The impeller is 2” wide at the inlet end and ¾” at the outlet. For a speed of 1800 rpm, neglecting losses and vane thickness, determine the discharge (in ft3/sec) for shock-less entry (?1 = 90°), the Torque and the angle, ?2 at the exit for the first problem in degrees.
3.An air compressor is used to pressurize a cylindrical tank which contains air at atmospheric pressure. The tank’s diameter is 3 ft and it is 5 ft long. The supply line is 1 inch in diameter. The air compressor’s output pressure is a constant 80 psi at 90oF with a 10 ft/s velocity. The tank’s temperature stays at a constant 70oF. Determine the time required for the tank pressure to reach 50 psi. (995 s or 16.58 min)
The total flow then moves to a point W on the traction drive two metres off the ground, and travels through a nine millimetre diameter conduit. Ignoring all friction and min
An activated sludge process receives 4000m^3 / day containing 120 mg BOD /L from the primary settling tank and 3500 m^3/day Containing 25mg BOD/L from the secondary settling t
A reservoir with a length of 20 km and width of 3 km has a flood inflow of 1000 m^3/s. (a) If exit flow is restricted to 500 m^3/s, how fast is the water level rising in the r
Solubility of a substance which dissolves with an increase in volume and liberation of heat will be favoured by the A. low pressure and high temperature. B. low pressure and l
If inflation pushes the price level up by 10 percent, what will be the real value of your savings? What is the real value of your savings if the price level declines by 10 per
The beam is to be hoisted using two chains. Determine the magnitudes of force and acting on each chain in order to develop a resultant force of 500 directed along the positi
The wheel of radius r rolls without slipping and has an angular velocity w. Write an expression for the velocity of point A in terms of theta and show that the velocities of
Car B is driving straight toward the point O at a constant speed v. An observer, located at A, tracts the car with a radar gun. What is the speed |r(dot)B/A| that the observ
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