Q1 / An axial load of 75 kN was applied to a steel rod of 3 m in length and 0.025 m in diameter. Calculate the change in length (∆L), Poisson’s ratio, percent elongation and percent reduction in  
area. Take change in diameter (∆d) = 5.73 x10 mm and E = 200 kN / mm .
subject :- strength of material

Steam is compressed to a saturated vapor state at constant pressure. The steam started at 2 MPa and 365 C. What work was required and what was the specific heat transfer?

Please show work so I can actually learn!

Q1. Write in your own words about the manufacturing processes of one product that has at least five sub-components. Please make sure to include the following:

• Explain the manufacturing processes used to create each sub-component. Also, include the material type of each sub-component.
• Include a flow chart to show the sequences of the processes.
• The processes should be presented in a series to understand how the product selected is made.
• Product application.
• Include pictures.

The parking lot of a shopping center is square of sides a, delimited by sills of height h, and the entrance to the parking lot is width c. During the last rain it was flooded, and the only escape route was entrance c. To avoid future flooding, it is necessary to determine the time t in which the water takes to evacuate from the enclosure. For the effect, a 1: 100 scale model is used and it is observed that this time depends on all the parking distances, on gravity, the viscosity and density of the rainwater. Determine the dimensionless numbers involved in the problem; ii) if the model takes 8 minutes to drain the water, how long must the barrier be closed for vehicles to enter the parking lot again?

You are going to empty a compressed air tank, but you want to do it in a way that results in the contents inside the tank remaining isenthalpic. If the initial state of air in the tank is 1500 psia and 100 °F, and it is emptied until the pressure is 14.7 psia, determine the heat transfer required to keep the air in the tank isenthalpic. The initial mass in the tank is 10 lbm and the final mass is 0.098 lbm. Assume ideal gas behavior.

please read the article in online 'Understanding the Tragic Hyatt Regency Walkway Collapse' and explain what other design faults that had occurred resulting to higher risks and safety hazards to the guests and victims. Should be more than 300 words.

1. As a mechanical engineer, design a hydraulic circuit with pushing and pulling force using a lever. Please consider a minimal usage of components in your design. Explain the operation based on directional control valve position. Use symbols in accordance to ISO 1219.

2. A manufacturing machine supplier needs your help to design a hydraulic circuit for 2 cylinder output that operate in sequence, one after another. Please consider a minimal usage of components in your design. Explain the operation based on directional control valve position. Use symbols in accordance to ISO 1219.

3. In your opinion, discuss 3 most effective safety strategy to ensure safety operation of hydraulic fluid.

*Project Task (Circuit design and analysis)

Please explain what added to the proliferation and expansion of general aviation aircraft in the 1960's and 1970's.

Hi, i want 5 (report) conclusions for each topic
1-The application of Bernoulli’s equation
2-Major&Minor Losses in Pipes

An air-conditioned room is to be maintained at 18oC, percentage saturation 40%. The fabric heat gains are 3000 W and there are a maximum of 20 people in the room at any time. Neglecting all other heat gains or losses calculate the required volume flow rate of air to be supplied to the room and its percentage saturation when the air supply temperature is 10oC. (Sensible heat gains per person = 100 W; latent heat gains per person = 30W; barometric pressure = 1.01325 bar)

Tech A says that in some vehicles, airbag deployment can be based on the speed of the impact and the weight of the seat occupant. Tech B says that the SRS seat belt pretensioners tighten the seat belt when you connect the seat belt. Who is correct?