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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. Scope of Materials for sulfuric acid service? This Engineering Practice presents materials of construction commonly used in Sulfuric Acid service. The corrosiveness of sulfu
Two kg Ammonia (mA) at PA = 300 kPa and TA = -10ºC and 1 kg Ammonia (mB) at PB = 300 kPa and TB = 100ºC are mixed in a constant pressure and adiabatic process. Find the following:
Determine acceleration of weight: Two pulleys of radii 200 mm and 400 mm are mounted co-axially and rigidly on a common-shaft. These pulleys have a overall mass of 28 kg an
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Explain the several types of pattern allowances with neat sketch. Show the six important - aspects of gating system design. Illustrate briefly their functions.
All equipment that is critical to the plant's safety support; should always be located in a Safe Area (e.g. fire pumps, instrument/electrical equipment and an Emergency Assembly Ar
(a) Differentiate between carnot Heat pump and carnot Heat engine. What is the basic cycle for a carnot Heat pump ? Explain it. (b) A reversible heat engine delivers 0.6 K at po
Radiu s of Gyration (K) The radius of gyration of given lamina about given axis is that distance from te given axis at which all the elemental parts of lamina would have to be
Motion of connected bodies: Analyze motion of connected bodies that is connected by pulleys. Sol: The given figure shows a light and inextensible string passing over sm
(a) Calculate the natural frequency of mass m = 1 Kg placed at one end of a cantilever beam of negligible mass. Length of cantilever = 500 mm, d = 30 mm, b = 20 mm, E = 210x10 9 N
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