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Q Describe about Push-pull welds?
- A push-pull system employs transformers with an electrically reversed polarity arrangement wherein two transformers complement each other to form circulating welding current circuit.
- Opposing electrodes are connected to different transformers and are of opposite polarity.
- Two spot welds may be obtained simultaneously.
Evaluate the normal and tangential stresses: Q. 20: At the point in stressed body, the principal stresses are σ x = 80 kN/m 2 and σ y = 40 kN/m 2 . Determine the norma
Backup Purge Backup purge gas can also be used to protect the under side of the weld and its adjacent base metal surfaces from oxidation on the time of welding . Uniformity
WHAT IS THE HISTORY AND COMPOSITION OF CUPOLA FURNACE?
2. Assume that the river has been selected as the source of raw water for the 2.0mgd demand. a. Surface water has low alkalinity, high turbidity. The distribution system is cast
why 4R kinematic chain do not form different mechanisms?
Modulus of Rupture: What is the Modulus of Rupture? Sol.: The maximum fictitious shear stress which can be calculated by torsion formula by using the experimentally fou
Q. Describe the type of Facing and Backing sand? Facing sand. This sand is used directly next to the surface of the pattern and comes into contact with the molten metal when th
Deflection at the centre - maximum deflection: A simply supported beam of span 6 m is subjected to Udl of 24 kN/m for a length of 2 m from left support. Discover the deflectio
Q. Use of Stainless Steels in welding? Considerable care must be exercised to obtain sound, crack-free welds. These difficulties are pronounced when welding very high-chromium
write a matlab program to generate shear force diagram
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