5. Identify any THREE hazards associated with the welding process.
6. What is difference between consumable and non-consumable electrodes? Identify one welding process that employs a consumable electrode and one that employs a non-consumable electrode?
7. Identify any THREE functions of electrode coatings used in SMAW process?
8. What information the electrode designation such as AWS E6018 provides?
9. What are advantages of GMAW compared to the SMAW process?
10. Identify any three metal transfer modes in relation to the GMAW process?.
11. Why shielding gases are used in the welding process?
12. List equipment and consumables used for the GMAW process, GTAW and SMAW processes.
13. Which of the arc processes cannot be employed for overhead welding position?
14. How the GTAW process is different from the GMAW process, and how it is similar to the GMAW process?
15. While using DC; which polarities can be employed for the GTAW process?
16. Which polarity results in high deposition rate? DEN or DCEP
17. Which polarity is better for deeper welds: DCEN or DCEP?
18. Compare heat affected zone for the laser beam welding process and the oxyfuel welding process, and comment on the difference.
19. Explain the mechanism of resistance spot welding, and steps involved in the process.
20. Which welding process would you recommend to fabricate the food cans: resistance seam welding or laser beam welding, and why?

Derive the constitutive model for a viscoelastic model that consists of a Voigt element (E1 for spring, and η for dashpot) in series with a spring (E2).

Now rearrange your expression so that all of the strain terms are on the right, and all of the stress terms are on the left. The strain portion of your constitutive model should read E1ηϵ+ϵ˙. What are the stress terms? In your symbolic expression, type E1 as "E_1", E2 as "E_2", σ as "sigma",and σ˙ as "sigmadot".

E1ηϵ+ϵ˙=

A weighted piston-cylinder device (pressure is not constant) initially contains 1.2 kg saturated liquid water at 190oC. Now heat is transferred to the water until the volume quadruples (increase four times) and the cylinder contains saturated vapor only. Determine: a) The final volume of the tank. b) The final temperature and pressure. c) The internal energy change of the water.

An animal in our JunglePark application needs to check whether another animal is in its neighborhood (close to it). To implement this behavior, add isClose() method to the Animal base class and implement it. This method must have the following signature.

public boolean isClose(Animal otherAnimal, int range) { }

The isClose() method returns TRUE if otherAnimal is located within a range distance [0 .. range] around the current animal and FALSE otherwise.

Part B. The worm shaft shown in part a of the figure transmits 1.2 hp at 500 rev/min. A static force analysis gave the results shown in part b of the figure. Bearing A is to be an angular-contact ball bearing mounted to take the 555-lbf thrust load. The bearing at B is to take only the radial load, so a straight roller bearing will be employed. Use an application factor of 1.3, a desired life of 30 kh, and a reliability goal, combined, of 0.90. Specify each bearing.

design and develop a miniature cryocooler in FORTRAN 77 software and validate it's result with EES AND fluent......

everything is well defined dont worry...you can skip it....

1. Answer the following question.
   • Describe an electro-mechanical machine. How do the systems work together to achieve a common goal?

Consider a clocked synchronous state machine with two inputs, A and B, and a single output Z that is 1 if

(1) A had the “same” value at each of the “three“ previous clock ticks, or

(2) B has been 1 since the last time that the first condition was true.

Otherwise, the output should be 0.

* Find the state/output table with the minimum state for this machine and draw the state diagram.

            For the metal matric composite above, determine the specific stiffnesses under (a) longitudinal and (b) transverse loadings. The fiber and matrix specific gravities are 8.29 and 6.08. Report the result in GPa.                                     For the metal matric composite above, determine the specific stiffnesses under (a) longitudinal and (b) transverse loadings. The fiber and matrix specific gravities are 8.29 and 6.08. Report the result in GPa.                        

Discuss the role and implementation of Material Control and Accountancy in the context of nuclear safeguards. Describe the purpose, use, and implementation of Key Measurement Points (KMP) and Material Balance Areas (MBA).

discuss the limitations of design wings of MAV aircraft by using FoilSim and Airfoil?

saturated humid air at 1 atmosphere and 10 degrees Celsius is to be mixed with atmospheric air at 1 atmosphere, 32 degrees Celsius and 80 percent relative humidity, to form air of 70 percent relative humidity.
determine,
the proportions at which these two streams are to be mixed and the temperature of the resulting air

The piping system that delivers water to the second floor of your house, at an elevation of 16 feet from the ground, consists of 22 feet of 0.75" ID (ID = Internal Diameter) pipe followed by 16 feet of 0.5" ID pipe.   Calculate the minimum pressure required at the beginning of the piping system, located on ground level, for delivering water with a flowrate of 2.7 gallons per minute at atmospheric pressure on the second floor. Consider only losses at the constriction and major losses. The piping is copper, and has roughness of “drawn tubing”.