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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.
After final PWHT, the hardness of the deposited weld metal and heat affected zone (HAZ) shall be examined. Hardness values shall not exceed 200 BHN. Heat treatment shall be perfo
(a) List several advantages and disadvantages of using transparent polymeric materials for eyeglass lenses. (b) Cite four properties (in addition to being transparent) that are
If the allowable shear stress for each of the 10-mm-diameter steel pins at A, B, and C is tallow = 90 MPa, and the allowable normal stress for the 13-mm-diameter rod is sallow = 15
(a) Explain different types of frames. Compare their merits and demerits. Diagram and illustrate a frameless construction. (b) Illustration briefly the constructional features o
Q. What is Tantalum? Tantalum is one of the most corrosion-resistant metals known. However, the high cost of tantalum has limited its commercial use as an all-purpose corrosio
when 2 bodies are connected by a string show the direction of acceleration
Windmills were traditionally used for processing grains, later they started to be used for electricity production as well. Windmills can also be used to pump water.
Find out also the loss of energy through impact: Example 1. A bullet weighing 0.1 newton horizontally fired with a velocity of 80 metres/sec hits a wooden block, weighin
IMPO R T AN T TERMS: Fi r e Box: Place where fuel is burnt. Grat e : The fuel is burnt on this. Baffles : Plates are used for directing the flow of flue gass
Q. Formed heads of vessels? Formed heads are generally of 2:1 semi ellipsoidal form, but other heads may be used, such as hemispherical, torispherical, conical and toriconical.
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