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ROTARY CONVERTERSHistorically, these type of power sources were developed first for arc welding applications and even now these types are popular. These rotary converters are of two types: namely motor driven and engine driven. The engine driven type also comes in two models. Diesel engine driven generators (with auxiliary power output for grinder, etc) are very useful in heavy duty structural applications and for pipeline work. Petrol Engine driven generators which are light and portable are useful for light duty and repair works at site. The efficiency of rotary converter is rather low (60 % for motor driven & Engine driven) and the maintenance is also costly due to wear and tear of rotating machinery.
Define the difference modes of Heat Transfer with examples. State one system where Heat Transfer takes place because of all modes of Heat Transfer.
Calculate pressure on each side of spherical ball : Heavy spherical ball of weight W rests in V shaped trough whose sides are inclined at the angles and to the horizontal
Ceramics Ceramics are mostly inorganic crystalline materials characterized by high melting point and low ductility. Such materials are processed via methods other than melting
Gear Complaints Nature of Complaints (a) Gear shifting hard (b) Gear slipping (c) Gear noise
Give important wage incentive plans for direct workers. Give advantages and limitations of each plan. a) Standard time for a given job is 15 hours and hourly rate of wages is 50
Write the types and functions of column. a) Explain surveying. Brie?y describe about the chain and accessories
Equilibrium of body - force acted at any angle: Magnitude of force ' p ' which is required to move the body down the plane. When ' p ' is acted with an angle of φ.
Lasers with Solid State Lasing Mediums For an active medium, the solid state laser uses lasing ions which are suspended in a rod shaped solid matrix. These "dopants" in the rod
What is NWCM
Difference between press forminig and hammer forming
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