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Q. What is Passive Fire Protection?
Passive fire protection is defined as any fire protection system that, by its nature, plays an inactive role in protecting personnel and property from damage by fire. Passive fire protection is generically referred to as structural fire protection, particularly in governmental regulations, and includes firewalls. Passive protection does not, in and of itself, provide inherent protection and is normally effective only for a limited time period. Once passive fire protection is exhausted, the protected structure is vulnerable to damage by fire. Examples of where passive fire protection is commonly used are: critical structural steel, buildings, critical pressure vessels, etc.
Fireproof materials, coatings and cladding are sometimes used to prevent or slow the spread of fire, and to limit the potential damage to equipment and structures.
Determine the work done per minute by a punch tool making 20 working strokes min when a 30 mm diameter hole is punched in 5 mm thick plate with ultimate shear strength of 450 MPa i
Q. Define Zirconium and its alloys? Zirconium and its alloys were developed primarily for the nuclear industry, but have found many industrial corrosion-resistant applications
(a) What are the limitations of Reversed Carnot Cycle to be used in practice for refrigeration purposes? Also derive the mathematical expression of COP for reversed carnot cycle.
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how to start
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Q. Explain basic types of Sand testing? Moulding sands should be of proper quality to meet the required level of accuracy and surface finish of castings. Proper quality of the
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