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1. Design a compound, reverted, spur gear train for a ratio of 75:1 and diametral pitch of 12. Specify pitch diameters and numbers of teeth. Sketch the train to scale.
2. Design a compound, reverted, spur gear train for a ratio of 7: 1 and diametral pitch of 4. Specify pitch diameters and numbers of teeth. Sketch the train to scale.
Air (ideal gas) inside a cylinder filled with a frictionless piston undergoes a polytrophic process having an exponent n = 1.33. The initial pressure of the air is 3.34 MPa and the T (final) is 750 K and during the process the volume of the air is in..
Homeowners concerned about interruption of electrical power from their local utility because of weather-related and utility system outages can acquire a standby generator that produces electricity using the home's existing natural gas or liquid pr..
a pressure tranducer outputs 0.23 volts at 2.39 psi and 4.71 volts at 28.13 psi. assuming the pressure transducer is
incoming air flow of 200 m3h at a temperature of 20oc and a humidity ratio of 0.012 kgvkga is mixed in a chamber with
The area under an engineering stress-strain curve up to fracture is the en- ergy/volume. The area under a true stress-strain curve up to fracture is also the energy/volume. If the specimen necks, these two areas are not equal.
a load p 4000 lb acting at a point a of a beam produces 0.25 in at point b and 0.75 in at point c of the beam. find
a small air turbine with an isentropic efficiency of 80 should produce 270 kjkgof work. the inlet temperature is 1000 k
Indicate how PWM is useful in the control of dc motors. List the advantages and disadvantages of PWM.
a piston-cylinder device with a free floating piston contains 2 kg of water as a saturated liquid with a pressure of
compressed natural gas is stored in a spherical tank 8 meters in diameter at ambient temperature 25 degc and at a
a compressor raises the pressure of 3kg of air gamma 1.4 adiabatically from 100kpa 288k to 450kpa. the electric motor
Sun S2 is fixed. All gears have the same pitch. For each clockwise revolution of S1, what is the motion of the arm?
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