On a railroad a -0.8% grade meters at 0.4% grade station 2+700 whose elevation of 300 m. The maximum allowable change in grade per station having a length of 20m. is 0.15.

1. Compute the length of cuve.
2. Compute the stationing where a culvert be located.
3. At what elevation must tge invert of the culvert be set if the pipe has a diameter of 0.9m. and the backfill is 0.3m depth. Neglect thickness of pipe.

i need summary between (4-10) pages about ((Li-Br _ water absorption refrigeration system)) with name of the text box solutions in end page

A manufacturing process produces piston rings, with ID (inner diameter) dimension as shown above.
Process variation causes the ID to be normally distributed, with a mean of 10.021 cm and a standard
deviation of 0.040 cm.
a. What percentage of piston rings will have ID exceeding 10.075 cm? What percentage of piston rings
will have ID exceeding 10.080 cm? (4)

b. What is the probability that a piston ring will have ID between 9.970 cm and 10.030 cm? (This is the
customer’s specification that the supplier tries to provide .)
(ie.) If the specification is “9.970cm < ID < 10.030cm”, what %’age of piston rings are “out of spec”? (4)

c. Half (50%) of all piston rings have ID below 10.021 cm. What is the dimension corresponding to
the smallest 10%, and what is the dimension corresponding to the largest 10%? What is the
dimension corresponding to the smallest 20%, and what is the dimension corresponding to the
largest 20%

d. Piston rings with ID too small or too large have different problems that the assembly operation
(customer) would like to know about in advance.
From your results in b., how many parts in a production run of 5000 pieces would be above
specification? How many parts would be below specification?

Parts with large ID out-of-specification are charged back to the vendor at $2.00 each. Parts with
small ID out of specification are charged back at $1.25 each. What is the total expected penalty
cost (for the vendor) for the 5000 pieces?

An ideal Rankine cycle with reheat uses water as the working fluid. As shown in the figure below, the conditions at the inlet to the first turbine stage are 1600 lbf/in.², 1200°F and the steam is reheated to a temperature of T₃ = 800°F between the turbine stages at a pressure of p₃ = p₂ = 400 lbf/in.²

For a condenser pressure of p₅ = p₄ = 5 lbf/in.², determine:

(a) the quality of the steam at the second-stage turbine exit.

(b) the cycle percent thermal efficiency.

The conceptual, preliminary design, and detail design and development of a Power breaker speed breaker in systems engineering.

1. What is significance of powder shape in relation to density and strength of the powder metallurgy parts?
2. What is significance of metallic powder flow rate, density and green strength?
3. Graphite can be used as a lubricant in the metallic powder; what is advantage of using the graphite in addition to providing lubrication?
4. Describe isostatic compaction method, and identify its advantage over conventional powder pressing method?
5. Define liquid phase sintering, and explain it.
6. What is sinter brazing?
7. Identify one application of powder metallurgy which is based on impregnation.
8. List one application of powder metallurgy parts that utilizes infiltration.
9. Would you be able to make undercuts in the metallurgy parts through the powder metallurgy process? Explain.
10. Define sizing, and explain why it is performed?
11. Which environment would you recommend while performing a sintering process, and why? Oxidizing, reducing, or neutral
12. Identify at least one problem associated with using carburizing environment while sintering the plain carbon steel sprockets.
13. Identify at least one problem associated with using oxidizing environment while sintering plain carbon steel gears?
14. Search literature and identify at least one application of powder metallurgy to manufacture tools using composite materials.
15. Metallic sheets can be manufactured through rolling process using either plate or metallic powder as starting material; identify one drawback and one comparative advantage in each case.

Electronic Manufacturing cannot be realized without Advance Manufacturing Technology. Justify this statement with appropriate examples.

Define And Writes its Formulas.

(i) instantaneous added mass, added damping, work done by damper, and work done by fluid.

(ii) time-mean added mass, time-mean added damping, time-mean work done by damper and time-mean work done by fluid.

A steam turbine receives 8 kg/s of steam at 9 MPa, 650 C and 60 m/s (pressure, temperature
and velocity). It discharges liquid-vapor mixture with a quality of 0.94 at a pressure of 325 kPa
and a velocity of 15 m/s. In addition, there is heat transfer from the turbine to the surroundings
for 560 kW. Find the power produced by the turbine and express it in kW.

Cylindrical water tanks are usually found on high-rise buildings and they are filled with water. Due to the weight of the water, collapses occur at the bottom of the tank. Depression (a) in the tank bottom depends on the diameter of the tank (D), the density of the water (c), the acceleration of gravity (g), the height of the water in the tank (h), the thickness of the tank bottom (t) and the modulus of the tank material (E). Using the Buckingham Pi theorem, obtain a functional expression for the collapse of the tank bottom (a).

A Pelton wheel functions under an available head of 150 m and consumes 50 liters of water per sec. The 600 mm diameter wheel rotates at 600 rpm. The coefficient of velocity of the nozzle is 0.98. The blade angle at the outlet is 16o . If the relative velocity at outlet is 90% of that at inlet.

i) Find the velocity of whirl at outlet

ii) Estimate the work done by the runner per sec

iii) Estimate the hydraulic efficiency

iv) Calculate the diameter of the nozzle, and

v) Comment on why the hydraulic efficiency of the wheel is relatively low and how can it be improved.

1. The yield strength and grain size of a metal are as follows

                                                  σy                       d (mm)                    

                                               220 MPa                4 x 10-2                      

                                               285 MPa                1 x 10-3                      

a. Calculate σ0

b. Calculate ky

c. At what grain size is a strength of 350 MPa possible?

d. “If the grain size is continuously decreased then the strength can be continuously increased without any upper limit, to infinite strength” Do you think this statement is possible or impossible. Please explain.

(True or False) After diagnostic of an evaporator coil found covered with 1/2 of the coil of low & insufficient refrigerant levels?