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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.
Write brief notes on the following : (a) Draught System (b) Binary Vapour Cycle (c) Cooling Towers (d) Governing of steam turbines
Are the types of pumps selected (base mounted, in-line)? Locate pump on discharge side of boiler. Flexible connector used. Valving indicated, isolation valve on suction and dis
An amount of air contained in a rigid container is at T1 = 300 K. After adding 450 kJ of heat, the air temperature increases to T2 = 430 K. Determine the mass of air, m [kg],
(a) How is the cooling system useful in two wheelers? (b) Which cooling system is mainly used in two wheelers? Describe working of that cooling system. (c) Describe the worki
Argon - Hydrogen Mixtures Argon - hydrogen mixtures are employed in special cases, such as mechanised welding of light gauge stainless steel tubing, in which the hydrogen do
By introducing their model of neural excitability in 1952, Alan Lloyd Hodgkin and Andrew Huxley not only shed light on the mechanism underlying a very important phenomenon in Physi
use, application benifits and working of willson hartnell governor
For a theoretical OTTO cycle operating on compression ratio of 8.5:1taking in air at 15C and 101.3kPa and having a maximum cycle temp of 1800C.Calculate the temp after compression,
what is blow hole defect ?
T ensil e Strain: When the tensile load acts on body then there will be decrease in cross sectional area and an increase in length of body. The ratio of increase in length t
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