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Air at 101.3 kPa and 15°C enters and leaves an axial-flow compressor stage with a velocity of 150m/s without swirl. The stage has a tip radius of 56cm and a hub radius of 35cm and rotates at 8000
The mean inside diameter of a sample of 200 washers manufactured by a machine is 0.502 in. and the standard deviation is 0.005 in.
The moving contact of a certain relay is carried on a massive element the rotate freely about a vertical axis. The other contact, which is very light, is mounted on a spring.
The compression strength of Kevlar 49 fiber is about one-eight of its tensile stress. Estimate the smallest diameter of a rod on which 12 um diameter Kevlar fiber can be wound without causing kinks on
Steam at a pressure of P = 10 MPa, and temperature of T = 600 C is supplied at a rate of 100 kg/s. What is the velocity of the steam if the pipe carrying it has a diameter of 1 m?
A block-and-tackle arrangement has two sheaves on the lower block and the end of the wire rope is also attached to the load block, which weighs 100 pounds.
Pressure and temperature at the start of compression in a standard diesel cycle are 95 kPa and 300 k. At the end of the heat addition, the pressure is 7.2 MPa and the temperature is 2150 k.
Piezometer and a Pitot tube are tapped into a 3-cm diameter horizontal water pipe, and the height of the water columns are measured to be 20 cm in the piezometer and 35 cm in the Pitot tube
In a dairy operation, milk at a flow rate of 250 liter/hour and a cow body temperature of 38.6°C must be chilled to a safe to store temperature of 13°C or less.
Define the nodal spacing to be uniformly 10mm and using the energy balance approach obtain the finite difference equation to determine the nodal temperature.
A car is travelling on a straight, level road when the driver perceives a hazard ahead, After a reaction time of 0.5 s, he applies the brakes, locking the wheels.
A rigid tank with a volume of 2 ft^3 contains air that is initially at 20lbf/in^2, 500 °R. If the air receives a heat transfer of magnitude 6 Btu, determine the final temperature °R, and the f
After arrival, blanks are classified as lathe or drill. While 80% of them of them are classified as Drill the rest is classified for the lathe machine.
Your engineering firm decides to build a prototype, and needs screw and nut fasteners as well as resistors and LEDs. There are machinists and electronics technicians available for in-house production.
Pure aluminum is being poured into a sand mold. The metal level in the pouring basin is 25.4cm above the metal level in the mold, and the runner is circular with a 1.016cm diameter
In orthogonal turnning of a bar of 100mm diameter with feed of 0.25mm/rev depth of cut 0f 4mm and cutting velocity 90m/min it is observed that the main (tangential) cutting force is perpendicular to t
A 4-stroke, 4 cylinder automotive engine develops 150 N-m brake torque at 3000 rpm. Assuming brake mean effective pressure to be 0.925 bar, Take, mean piston speed as 12 m/sec. Find (i) Brake power in
Suppose an electronic low-pass filter (a circuit) is to be designed to reduce measurement noise from a sensor. The output of the sensor will be connected to the input of the filter, and the
Make a schematic drawing of an amorphous Si glass with 10%H, including about 30 atoms. (Hint: think about how many bonds Si will form, and how many bonds H would form).
The 0.8 kg collar slides freely on the fixed circular rod. Calculate the velocity v of the collar as it hits the stop at B if it is elevated fro rest at A by the action of the constant 40 N forc
Steam at 10bar and 0.95 dry flows at 130 m/sec in a pipe. It is throttled to 8 bar and the flow rate is 12 kg/sec. Assuming velocity in the pipe on the down stream side of the valve is 160 m/sec.
A disk clutch is to be designed for transmitting a torqueof 85N.m space restrictons limit the outside disk diameter to 100m.m.Design value for the molded friction material and steel disks to be used 0
You have a 120 Ω quarter bridge 2 wire set up with Sg=2.10 and an unknown lead wire resistance. A 59880Ω calibration resistor is switched in parallel to the gage only and a recording instr
Design a parking gate mechanism for use in a building where it needs to fold due to the height of that location. Dimensions are shown fig. The gate fixed pivots must be somewhere on the control post.