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(a) Define the hardenability of a steel.
(b) Define the hardness of a steel.
(c) Describe the Jominy hardenability test.
(d) Explain how the data for the plotting of the Jominy curve are obtained and how the curve is constructed.
(e) Of what industrial use are Jominy hardenability curves?
The material is brought from a borrow site that has yt=19.5 kn/M63 with w=16.5% and Gs=2.70 How much of the borrow material (in cubic meters) is required to fill the site How heavy is it
Using darcy-weisbach equation, calculate the major friction head loss for a 24 inch diameter, 120 ft long pipe that can carry water with a flow rate of 5 cfs. Assume the temperature of water is 70 deg F and the roughness of the pipe is 0.0016 ft.
10-kg of nitrogen is heated from 20 degrees C to 250 degress C. Determine the total amount of heat required when this is done in (a) a constant-volume process and (b) an isobaric process.
Here is some information about a professor salary index (PSI) Year PSI Change in PSI 2004 82 3.22% 2005 89 8.50 2006 100 a 2007 b 4.00 2008 107 c 2009 116 d 2010 e 5.17 2011 132 7.58
compute the max possible moment at the centerline of the beam and the absolute moment in the beam.
calculate maximum external pull in each gear of a tractor when given speed, slope, weight, and rolling resistance
Neglecting air resistance, determine the height a vertical jet of water will rise if projected with velocity 58 ft/ s.
A simply supported beam is to span 12 feet. It will support a uniformly distributed load of 800 pounds per linear foot over the full span and a concentrated load of 1000 pounds acting at 4 feet from the left support.
Determine the power generated by the turbine (in KW) operating in steady state at 5MPa, with specific enthalpy 3000kj/kg and velocity of 10m/s at the entrance and steam escaping at 0.07MPa, specific enthalpy 2000kj/kg at velocity of 90m/s p.
Find the point at which the line with parametric equation x=2+3t, y=-4t, z=5+t intersects the plane 4x+5y-2z=18
A wastewater treatment plant has a flow of 30 mgd. The influent BOD is 250 mg/L. Assume that 30% of the BOD is removed in the primary clarifiers. The plant is designed to carry 3,000 mg/L of VSS in the aeration basin.
Assuming that 50% of the automobile accidents are due to a speed violation. a) What is the probability that among 10 automobile accidents at least 6 will be due mainly to a speed violation?
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