A SCADA system monitors an application through an RTU out in the field. Please list typical RTU hardware that may be encountered.

What were the pros and cons of forming another strategic alliance (i.e., the Mazda-Toyota partnership) to compete in the automotive industry?

You are to manufacture a smart phone case, material selection question below:

Speicfy the details of the EXACT material grade selected for each of the three material variations of the smart phone case; one metal, one polymer and one carbon-fibre composite (specify the resin type).

- What would be the best choice of material for the phone case from the three options?

Draw a sectional diagram of an aircraft wing, showing the structure of the wing and the control surfaces. Then detail the most appropriate materials used for each of the main parts, mentioning at least 2 metals, 1 CFC composite, and 1 sandwich material and expalin why each is used in that application, with reference to the properties required to withstand the forces involved.

1. Select 3 materials that you think are best for the design of a smart phone back plate cover (not protection case) : One Metal, One Polymer and One Carbon Fibre composite.

2. Specify the details of the EXACT material grade selected for each of the three material variations of the smart phone case(specify the resin type).

3. What would be the best choice of material for the phone case from the three options?

Explain the nature of defect in casting process and identify the defects through various NDT techniques.

1. Provide at least three advantages and disadvantages of mask-based process compared to the stereolithography process.

2.Name three solid-based RP processes. Briefly explain fundamentally how each process transforms from a solid to form a part?

Wind Tunnel Experiment:

1. Using the manometer measurements, determine the two speeds with which the wind tunnel was operated. (1 mark)

2. Discuss how changes in Reynolds Number affect the flow separation and provide a source that supports your suggestion. (2 mark)

3. Discuss how the angle which separated flow is achieved varies for each tuft depending on its location and explain why this is occurring.

4. What flow structure can be identified at the tip of the wing and describe how the tufts react differently at this location?

5. Calculate the Static Pressure Coefficient over the wing using the static pressure values provided. (1 Mark)

CFD Analysis:

6. Describe your CFD methodology, meshing considerations and solution setup. Justify the decisions you have made for these parameters using results that you have obtained or by citing suitable references.

7. Determine the lift and drag for the wing at both angles of attack using the CFD model. (1 Mark)

8. Compare the flow fields for both angles of attack, describe and locate the key flow features such as those in the wake region and separation points if they exist.

9. Calculate the Static Pressure Coefficient over the wing and the velocity field in the wake from your CFD results and plot these over the corresponding experimental results provided. (2 Mark)

Discussion and Conclusion:

10. Include a detailed discussion comparing your CFD analysis and results with the wind tunnel results plotted in question 9. Identify any sources of error between the experiment and the CFD and determine how this may have affected the comparison between the two.

11. If you were asked to repeat the CFD analysis, what would you change in the setup of the model to better predict the flow features viewed in the wind tunnel.

3. Design and draw a circuit using the cascade system to operate two cylinders (A and B) which, on the operation of a start valve, produces the sequence A – B + B – A+. The cylinders should park in the positions B – A + when the start switch is in the ‘off’ position.

4. Modify the circuit designed for question 3 to provide an emergency stop which will park both cylinders in the extended position (i.e. A + B +).

5. Modify the circuit designed for question 3 to provide a fail safe. The fail safe should:

(a) act in the event of a reduced pressure at inlet to the group selecting valve

(b) park the cylinders in the retracted position

Design a four-link mechanism when the motions of the input and the output links are governed by a function y = x2 and x varies from 0 to 2 with an interval of 1.

Assume to vary from 50° to 150° and from 80° to 160°.

Working from first principles, derive an expression for the efficiency of an Otto Cycle engine in terms of compression ratio. Sketch the P-V diagram for this cycle and annotate it using the same station numbers used in your derivation. State why the efficiency must be less than that of the Carnot Cycle.

Working from first principles, derive an expression for the stagnation temperature of a perfect gas, in terms of flight velocity, specific heat at constant pressure and the ambient temperature.

a) Describe briefly how to develop a sensor using strain gauge. Your answer should be supported with figure(s) and block diagram showing the mechanical and electrical relation of the sensor [5 marks) Subject : Instrumentation

staybolts are most commonly used in ------ boilers.

Assess in details, the relevance of Mechanical Engineering to other disciplines going by the new technological trends.