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Define the following :
(a) Boot Strap Air Evaporative System
(b) Simple VCR System
(c) Advantage and disadvantage of VCR system over Air Refrigeration System
(d) Reduced Ambient Air Cooling System
(e) Define a refrigerant. Describe primary, secondary and eco-friendly refrigerants with examples. Also discuss the physical and thermodynamic properties of the following refrigerants :
R-11, R-12, R-22, R-717
(f) Illustrate with neat sketches various methods of refrigeration.
(a) Illustrate Fourier Series and calculate the constant coefficients. (b) A Harmonic motion is provided by x(t) = 10sin(30t -π/3) where t in seconds and phase angle in radians.
Grinding Wheels Implicated to be rotated at relatively high rotational velocities within grinding machines, grinding wheels contain a surface of rotation about a central axis.
Determine the final temperature in piston – cylinder: One Kg of steam at 1.5MPa and 400ºC in a piston - cylinder device is cooled at constant pressure. Determine the final te
Q. Design lay-down areas for plant? Designated lay-down areas are areas specifically positioned to enable equipment maintenance to be carried out. These are normally assigned f
Projection Welding This is a modified method of making single or multiple spot welds. Projection welds are made by providing an embossment or projection on one or both of
a) You were assigned to determine the production rate for a polymer extrusion process. The extruder is found to have a barrel diameter = 4.5 in and length = 11 ft. The extruder scr
Pumps should be grouped together with good maintenance access to the motor, and good personnel access to seals and suction / discharge valves. Maintenance access should allow for r
Find the value of force to move a system: Th e system of particles shown in the figure given below is initially at rest. Find the value of force F which should be applied so
Thermit Welding This process utilises the intense heat developed during the reaction between iron oxide and aluminium. When a mixture of three parts of iron oxide and one part
Determine minimum value of weigh to cause motion: Determine minimum value of weight W required to cause motion of block, which rests on a horizontal plane. The block weighs 3
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