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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.
(a) What is suspension system? Write down its functions. (b) What are the types of suspension system? Write the names of suspension system used in front and rear of two wheelers
a) What are major kinds of cutting tools used for machining of metals? b) What important role the chip breakers play during machining of metals? c) Write four important requi
Find out the impact-force: A mass of 3 kg ball freely falls from a height of 2 metres on an anvil, & rise 0.5 metre after the blow. If the duration of impact is (1/50) th of
work done by an impulse turbine
Advantage of flash butt welding 1. Higher weld strength 2. Higher production rate 3. Better heat concentration 4. Simple weld surface preparation 5. Wide range of m
The Mechanical Engineer/Specialist shall prepare Material Requisitions for all required mechanical material and equipment. The format for all requisitions shall be in accordance w
show that the avogadro constant is the number of atoms in 0.072kg of carbon-12
Types in trusses
If Steering is Heavy Causes of Problem Remedy Steering head adjuster too tight Damaged steering cones or steel ball
For example, if one were provided with the set [3 1 3 -4 -6], the resulting answers would be [3 1 -4], [3 1 -4], an [3 3 -6], as these are the three sets of three values which sum
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