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Welding HeadSubmerged arc welding head consists of the wire spool, wire feed system, flux delivery hopper and electrical contact nozzle. The electrode wire is unwound from the spool by the power driven rolls, straightened by a set of pressure rolls and fed through the contact nozzle into the weld pool. The drive for wire feed is from a motor with speed control provided either by means of a gear box or by means of thyristor controls.
A tensile test on a specimen having an initial diameter of 13.11 mm and an initial gauge length of 200.0 mm, gave the following data:
what is SFD and BMD? EXPLAIN
Schedule Evaluation The schedules are evaluated as per to the criterion weighted loss of slack. Now let t 0 si be the slack (time buffer) of job I as per to the initial sched
Q. Illustrate process of Radiographic Examination? Radiographic examination of welded joints shall be performed when required by the Code or additionally when specified in this
1.5kw/ton of refrigeration is required to maintain temp of -40c in the refrigerator.if the cycle works on carnot cycle.determine 1.cop,2.sink temp 3. heat rejejected to the sink/to
Condition for Carnot theorem - thermodynamics: 1 . If T 1 = T 2 ; No work, = 0 2 . Higher the temperature difference, greater the efficiency. 3. For the same
give equivalence of screw jack and friction on an inclined plane
define moment of inertia
In a Rankine cycle, the steam at inlet to turbine is saturated at a pressure of 35 bar and the exhaust pressure is 0.2 bar. Evaluate: (i) The pump work, (ii) The turb
Explain the Laws of Thermodynamics Usually thermodynamics contains four laws; a. Zeroth law: this law deals with thermal equilibrium and establishes an idea of temperature.
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