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SHIELDING GASES
Shielding gas is directed by the torch to the arc and weld pool to protect the electrode and the molten weld metal from atmospheric contamination.
Argon and helium or mixtures of the two are the most common types of inert gas used for the shielding. Argon hydrogen mixtures are used for special applications.
Q. Define corrosion-resistant nickel-based alloys? The corrosion-resistant nickel-based alloys offer a significant improvement in corrosion resistance to sulphuric acid over th
A 228 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of ki
for a circle,is the net work necessarily zero? for what kind of system will this be the case?
Objective type/ short-answer type questions. Describe the following :- a. Illustrate what do you mean by CAD/ CAM b. Discuss the storage device used in computer. c. Wha
System of loads - Beam: Build the SFD & BMD for 10 m span simply supported beam subjected to a system of loads as illustrated in Figure . Figure Taking moment a
number of degrees of freedom in gear
Closed System: The system that can exchange energy with the surrounding but not the mass. The quantity of matter hence remains fixed. And the system can be described as cont
Types of Holons The four major types of holons are: Order holons Product holons Resource holons Staff holons Considering the cooperative aspect of the
SHIELDED METAL ARC WELDING (SMAW) It also known as Manual Metal Arc Welding (MMAW). The heat required for welding is generated by the electric arc formed between metallic elect
Battery Charger: As suggested by the name, it is used to charge a battery. The detailed procedure for charging a battery is given in later units. List the uses of following too
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