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(a) Describe that internal energy is property of the system.
(b) one kg of air at 1 bar and 300k is compressed adiabatically till its pressure becomes 5 times the original pressure. Then it is expanded at constant pressure and finally cooled at constant volume to return to its original conditions. Evaluate heat transfer, internal energy and work transfer for each process and for the cycle. Show the process on p-v diagrams.
Q. State and briefly explain the various phenomena useful for electromechanical energy conversion in rotating machines. Sol. In the rotating machines there are mainly tw
evaluate ax2-5a2+4 /a2x-3ax+2
Effect of the parameters in spot welding The passage of more current than what is required causes the following defects. I. Weld expulsion ii. Cavitations iii. Weld cracking
A shaft is hinghed by two bearings placed 1.0 m apart. A 600mm diameter pulley is mounted at a distance of 300 mm to the right of left hand bearing and this operates a pulley direc
Determine number of coils and length of the spring: A close coiled helical spring ought to extend by 120 mm under an axial force of 1200 N. If mean coil radius is equal to 40
Transformer Type Power Sources These are the simplest and cheapest type available for arc welding. These are the mainly used for SMAW, AC SAW and gouging applications. These are
Value of the maximum shear stress: Illustrates that for a given maximum shear stress the minimum diameter needed for a solid circular shaft to transmit P kW at N rpm may be ex
The Shaft is made of a material with an allowable shear strength of 80 Mpa. a. Develop the torque diagram b. Determine the minimum acceptable diameter of the shaft
Give justification toward the development of rapid prototyping?
Force system: Defin e Non concurrent force system. Why we find the position of Resultant in Non concurrent force system? Sol.: In Equilibrium of concurrent force syste
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