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Q. Material Selection for Insulation?
Material for 15ºC to 650ºC temp range is Calcium Silicate, Manville Thermo-12 or approved equivalent.
Material for -18ºC to 230ºC temp. range is Mineral Fibre (ASTM C547), Manville Micro-Lok or approved equivalent. The upper service temperature is limited by the decomposition temperature of organic binders that give the insulation its rigidity (approximately 175ºC). Operation substantially above the decomposition temperature causes the insulation to loose its compressive strength and resiliency, but not its thermal performance. Mineral fibre is not suitable for long term service at process temperatures above the indicated limit, particularly when it will be subject to external loads (i.e., wind) or vibration. With Owner's prior written consent, mineral fibre may be installed for service above the indicated temperature limit.
Material for -175ºC to 482ºC temp range is Cellular Glass (Pittsburgh Corning Foamglass or approved equivalent) for piping or equipment in areas that are likely to be submersed.
Law of triagnle of forces
All shell and head joints shall be double-welded butt joints with full penetration. In cases where double welding is impractical, the root pass shall be made by the GTAW process.
case study for factors affecting process design decisions
Explain Index Jig? 1. This type of jig, as the name suggests, incorporate a suitable indexing mechanism, by means of which the work piece can be indexed to required posit
Explain the super position of waves with neat diagrams
COMPETENCY STATEMENT: In this programme, every learner shall be assessed on a continuous basis for his/her knowledge and skills during the programme duration. Learners' competenc
Determine the maximum uniformly distributed load: A timber beam 150 mm wide & 300 mm deep is supported simply over a span of 4 m. determine the maximum uniformly distribute
Q. Show General Properties of Castings? 1. Fe-Cr (10-30%Cr) alloys offer good resistance to oxidation, low strength at elevated temps, restricted to use in oxidizing or reducin
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(a) What are the types of material used for making spanners? What are the uses of spanners? (b) Write down the uses of following tools and make neat sketches of the same : (i
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