Imagine the CEO of a software house asks you to make a system that automates the SDLC
process. Based on the initial requirements, you were successfully able to make a prototype that
captures almost 40$-50% functionalities. You presented the demo to the CEO and now CEO is very
impressed with the work. The CEO has ordered you to add some new features in the prototype and
release the product as soon as possible. Being the lead developer of the project, do you think this is a
good idea? If yes, provide your reason? If no, write a reasoning report for the CEO to explain why it is
not a good idea to add more features in the prototype and put it in the release.

MAKE A PROCESS FLOW CHART :

PROCEDURE:
Pattern Making

1. Using try square check the perpendicularity of the wood
2. Using try square and steel ruler check the dimension of the wood if it is suitable for our

design if not either replace the wood if it is less than to the required dimension as specified

in our drawing if it is greater using rip cut saw reduce the wood to its suitable size

3. Divide the wood into two (2) parts using following procedure (either)

a. Create two diagonal lines, the intersection points of the two diagonal lines represents the center of the wood then marked the center and draw a lines (represent as pt P)

b. Measure 60 mm from left side then marked the point at 60 mm and draw a lines (represent as pt P)

4. Using rip cut saw cut the wood into two (2) piece, cut location is in step # 3
5. Overlap the two (2) piece wood then around the side of the wood, tape the wood using

masking tape for temporary joining of the material

6. From the top side of the wood create two (2) diagonal lines
7. Get the center of step # 6 from the center create a point going down by 10 mm (represent

as pt O)

8. From pt O using compass create an arc with a radius of 10 mm
9. From the center using a compass create an arc with a radius of 38 mm
10. From the top right side of the wood from the edge measure 28 mm
11. From the lower left side of the from the edge measure 28 mm
12. Connect the arc and step # 10 and step # 11 to create the outline of the elbow
13. From top right side of the wood measure 14 mm then offset going inside by 15 mm marked

it using a pencil it represents as the bamboo pin location 1

14. From lower left side of the wood measure 14 mm then offset going inside by 15 mm marked it using a pencil it represents as the bamboo pin location 2
15. Using drill make a hole for step # 13 and step # 14
16. For the drill bit use 1/8” diameter then measure 22 mm depth of the drill bit then marked it

using masking tape it represents as the limits/depth of the bamboo pin for our pattern

17. Remove the masking tape around the wood
18. Then placed the bamboo pin to its location

Base

1. Secure the wood piece in the bench vise
2. Using compass draw a circle at the side of the wood piece, the circle shall be connected to

the step 10 and step 11 of pattern making

3. Using rip cut saw remove the part of the wood outside the outline
4. Then to shape up the wood into elbow using set of files such as rasp file, small file and

triangular file form the elbow makes sure throughout the wood it should have 28 mm in

diameter

5. Using sandpaper clean the surface of the base

Core Prints

1. Using the other wood create the core prints 1 and 2 (CP 1 and CP 2); using compass draw the circle with a diameter equivalent to 32 mm and 28 mm.
2. Using rip cut saw cut the core prints (CP1 and CP2)
3. Using set of file form, the circle of the core prints
4. Using set of sandpaper clean the main body and core prints (CP1 and CP2)
5. Using wood glue attach the core prints to the main body with following arrangement as shown in drawing

write a fortran code on helical transcritical compression tube used in pulse tube cryocooler using R407 refrigerant.

it is different than already replied question on chegg. please dont copy paste that answer i want genuine and correct code using fortran 77 only

Please make sure to display your thought process? It is imperative to be able to follow how the answer was deduced. Please be as thorough as possible. Please address all parts of this question as they are all part and critical to answering this question correctly. Please show good integrity when answering the question:

1) A sample of cross-linked natural rubber (polyisoprene) is found to have a shear modulus of 500 kPa at 25˚C. Determine the force needed to stretch a 100 mm long rod to 150 mm. Note that the original circular cross-section of the rod was 1.0 mm in diameter. What is the diameter of this rod of natural rubber while stretched to 150 mm?

USE EXCEL OR MATLAB IF YOU NEED

Given the dry-bulb temperature, T_db and relative humidity, Φ, the wet-bulb, T_wb temperature may be calculated from the psychrometric equation (Jones, 1994):

P_vsΦ – P_ss = P_atmA (T_wb -T_db )                                              (1)

Use your input from the Table below.

The input T_wb and T_db are in ^oC (used in Eqs. (2) and (3) in Kelvin).   

P_ss = saturated vapor pressure at T_wb (kPa)

P_vs = saturated vapor pressure at T_db (kPa)   

P_ss = 10^[30.59051- 8.2 log₁₀ T_wb + 0.0024804 T_wb – 3142.31/ T_wb] ..........(2)

and

P_vs = 10^[30.59051- 8.2 log₁₀ T_db + 0.0024804 T_db – 3142.31/ T_db]     ........(3)

In the above two equations T is in Kelvin and P in kPa (you have to convert the temperatures from the input in ^oC to Kelvin).

P_atm= atmospheric pressure (kPa) (P_atm =101.325 kPa)

T_db = dry-bulb temperature (^oC)

T_wb = wet-bulb temperature (^oC)

A    = 6.66x10^-4 C^-1 (constant for sling psychrometer)

Φ = relative humidity (%) used in the calculations as (%/100). For example, for 80% relative humidity, input 0.8.

Solve Equation (1) for the wet-bulb temperature using Newton-Raphson method. The input is as follows: T_db= in ^oC and Φ= in % (to be converted in the program to fraction, i.e., Φ=50% means Φ=0.5). Set the tolerance to 10^-4 . In other words, the absolute difference between the results of two successive iterations should not be more than 10^-4. Check your answer using Psychrometric chart/Thermo Textbook. Also, to check if your results are correct, use f=100% and you should get T_wb=T_db. S is yourlisting number.

Explain the difference between parabolic dish and trough by drawing both the schematics, Discuss which one is better and why?

Neat and clean schematic diagram of both.

1. Suppose there a joint where 13 bolts (M14 x 2, ISO 9.8) are on a 200 mm bolt circle. The bolts are zinc-plated and installed for permanent installation. The maximum total load is 400,000 N and the minimum load is 100,000 N. The top member of the joint is cast-iron (E = 100,000 MPa) and 20 mm thick, while the bottom member is steel that is 40 mm thick.

e) What is the factor of safety in yield, np?

f) What is the load factor of safety, nL?

g) What is the joint separation factor of safety, nO?

h) What is the fatigue factor of safety, nf?

i) Is this joint safe in both static and fatigue loading?

j) What is the torque required to make up the bolts to the required pre-load, in N-mm?

How to make a PERT Chart on Excel with example project?

A reheat Rankine cycle operates with water as the working fluid. Steam enters the first turbine at 8 MPa and 450◦C and exits at 0.8 MPa. It is then reheated at 400◦C before entering the second turbine, where it exits at 10 kPa. If the amount of work into the pump is 8.04 kJ/kg and the net work per cycle produced is 1410.5 kJ/kg, determine the thermal efficiency. Assume no pressure losses in the condenser or the boiler.

Assume you are working on an ideal gas-turbine cycle that has three stages of compression with intercooling and three stages of expansion with reheating at 100 kPa and 290 K. This system uses a regenerator as well. The pressure ratio across each stage of the compressor and turbine is 3; the air temperature when entering the turbine is 1300 K; and the regenerator operates perfectly. Draw the T − s diagram of this system. Determine the mass flow rate of the air passing through the system, the rates of heat addition and rejection when this cycle produces 1000 hp and thermal efficiency of the system. Assume isentropic operations for all the compressor and turbine stages and use constant specific heats at room temperature. Also assume negligible changes in kinetic and potential energy

In a thermofluids lab, a student is analysing a prototype single-pass cross-flow heat exchanger used to cool water from 90oC to 60oC by transferring its heat to an air stream with an inlet temperature of 30oC without mixing. The water and air flow rates are 42,000 kg/h and 180,000 kg/h respectively. Assume that for the water cp=4.18kJ/kg⋅oC and for the air cp=1.02kJ/kg⋅oC. Calculate the log mean temperature difference for this heat exchanger.

An insulated, rigid vessel is initially empty (evacuated). However, it is connected to a steam line that is maintained at 200 psia and 745 ∘ ∘ F. The valve is opened until the flow into the tank slows and stops (which occurs when the pressure in the tank is equal to the pressure in the steam line), at which point the valve is closed. What is the temperature within the vessel?

State 1 of an Air-Standard Otto cycle (prior to compression) has T1= 290 K, p1= 0.911 bar and V1= 5.5 litres.

If the air is compressed with volumetric compression ratio rv= 7.6, determine System mass m，Specific internal energy of the compressed state u2 and Input work W

Due to the Covid-19 problem, Hamdin needs to measure a perimeter of a lake to build a
fence. He asked Marzu, Wahib and Usman to run the measurement and report to him
immediately. Marzu informed that the perimeter was “1200 footsteps”, while Wahib
mentioned the perimeter was “1100 footsteps”. Later on, Usman came and told that the size
was “1300 footsteps”.
i) Discuss in terms of measurement, why there were the different answers of the
perimeter from Marzu, Wahib and Usman although they were measuring the same
lake?

ii) Please propose a new method of measurement to improve the precision and
accuracy of the perimeter measurement?

)Explain in general in which area you would apply similarity concept along your career as a mechanical engineer. How will it benefit you and your organisation.