Consider a converging-diverging nozzle with an exit-to-throat area of 3. The inlet reservoir pressure is 1 atm and the exit pressure is 0.5 atm.

(a) For this pressure ratio a normal shock will stand somewhere inside the divergent portion of nozzle. Calculate the location of shock (A/At =?).

(b) back pressure if the flow were isentropic throughout.

In a combined cycle of gas turbine, can a steam turbine drive the same generator driven by the gas turbine? Or it must drives a separate generator?

Also, is there any gas power station that uses a gas other than natural gas? Please give an example. Also, is there a gas power station that uses synthesis gas?

A disk cam rotating at 200 rpm lifts a radial roller follower with simple harmonic motion through a maximum displacement of 2.5 in. while the cam rotates through 90°. There is then a dwell of the follower for 180° of cam rotation, followed by a return of the follower in simple harmonic motion in the remaining 90° of cam rotation. For a follower weight of 8 lb, determine the inertia force of the follower for each 15° of cam rotation and plot the result. Determine and plot the resultant of the weight force and inertia force. Determine the required spring constant of a spring which will maintain contact of the follower with the cam throughout the cam rotation.

How to calculate suitable spring rate for oscillating forced closed cam and follower having simple harmonic motion so that it will always in contact with cam.Also at which speed it will loss contact with cam and how much distance it will lift-off from cam.Please explain in detail with example using SHM equations and cam follower drawing with resolve forces.

A steel rotor disc of uniform thickness 50mm has an outer rim diameter 800mm and a central hole of diameter 150mm. There are 200 blades each of weight 2N at an effective radius of 420mm pitched evenly around the periphery. Determine the rotational speed at which yielding first occurs according to the maximum shear stress criterion. Yield stress= 750 MPa, ? = 0.304, ? = 7700 kg/m 3

Write an Matlab Program for Wankel Engine Gemontry.

State your and assumptions and post the code

Describe how the arc weld is generated in the manual metal arc (MMA) welding process and discuss the mechanism of metal transfer from the electrode to the weld pool. Also name and discuss the influence of the main welding parameters on the metal transfer

Code an Entire Piston Design in MATLAB or C with the given input parameters are
Crank Length , crank radius, crank angle , maximum explosion pressure (Pmax) , bore , stroke

Assume any for necessary values to get the output

The output should include
Piston clearance
Top Skirt
bottom Skirt
crown thickness
skirt thickness
piston ring dimensions
gudegeon pin dimensions

14.5     What are the major pitfalls a supervisor can fall victim to when carrying out disciplinary functions?

14.6     What does it mean to be fair when disciplining employees?

14.7     Why should you know yourself and your employees well before attempting to discipline or punish them?

Write a program in MATLAB that processes a series of employees to determine the days until/since a given employee’s birthday as follows: To populate the employees' data, read in a comma separated file containing First Name, Last Name, Birthday Month, Birthday Day, and Salary. Use the file uploaded in Loud Cloud as an example. Build up an array of employee records (i.e., structures) where each record contains the employee's first name, last name, birthday (stored as an integer representing days from January 1st), and salary. Create a function that takes two numbers (month and day) as input and returns a single number (days since January 1st). This function will be used to "translate" the birthday format from that of the input file to that required for the data structures. 1. Create an array containing 12 values in which each number represents the days in each month of the year (i.e., 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31). 2. Subtract 1 from the input month and iterate over the array, adding in the value until you have the days in (month-1) months. 3. Add to this the number of the birthday day. Prompt the user to supply an employee’s first name. Using the result, search through the array of structures to find the requested employee. Display the number of days between the current date and the employee’s birthday. Note that this will be a negative number if the employee’s birthday has already passed. File: Donald,Trump,6,14,400000 Mickey,Mouse,11,18,10000 Ada,Lovelace,12,10,5000 Justin,Bieber,3,1,125000 Benjamin,Franklin,1,17,15000 Angela,Merkel,7,17,234400

Explain how the processing parameters for INJECTION MOULDING can influence the tensile strength for a given polymer, explain this in terms of polymer properties.

Detailed methodology required in carry out experiment on the effect of adulterated gasoline (gasoline + kerosene) on the spark ignition engine.

6. An increase in roughness of a pipe with laminar flow would increase the pressure drop of the pipe. Assume the velocity is the same for the smooth pipe and the rough pipe.

a. True

b. False

A large vented tank containing water at 20 C has a pipe discharging to the atmosphere horizontally from the bottom. The pipe is 2.3 cm in diameter, has a surface roughness of 0.046mm, and is 40m long. The velocity in the pipe is 3.5 m/s. The flow in the pipe is turbulent. Neglecting minor losses, what is the water level in the tank above the centerline of the outlet pipe?

2.1 m

28.3 m

13.6 m

39.2 m

With the same setup (except water velocity), what is the maximum water height where the flow could be assumed laminar?

2.56 cm

4.1 m

1.1 m

6.3 m

2 kg/s of steam enters a turbine operating at steady state at 1 MPa, 200oC and exits at 40oC with a quality of 83%. Stray heat transfer and kinetic and potential energy effects are negligible. Determine (a) the power developed by the turbine, in kW, (b) the change in specific entropy from inlet to exit, in kJ/kg·K.