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Q. What is thermoplastic plastics?
These plastic soften under heat, harden on cooling, and can be resoften under heat. Thus, they retain their fusibility, solubility, and capability of being repeatedly shape. The mechanical properties of these plastics are rather sensitive to temperature and to sunlight and exposure to temperature may cause thermal degradation. Common thermoplastic plastics are: acrylics, poly tetra fluoro ethylene (PTFE), polyvinyl chlorides (PVC), nylons, polyethylene, polypropylene, polystyrene etc,
Q. Explain Sulphidation process? The presence of sulphur converts the surface of the metal to a sulphide scale which is generally more destructive than an oxide scale. Sulphid
what is the use of crankshaft?
Try Square: It has two straight edge arms at the angle of 90 degree and it is used to check the perpendicularity. A try square is shown in Figure. Figure: Try Square
Q. What do you mean by Filler metals? Use filler metal that is similar in chemistry, corrosion resistance, and mechanical properties of the base metal being welded. Filler m
connecting rod AB of length L support a variable compressiv force F .Drive an expression for the moment of F about the crank axis O in the term of F L r and angle
1.5kw/ton of refrigeration is required to maintain temp of -40c in the refrigerator.if the cycle works on carnot cycle.determine 1.cop,2.sink temp 3. heat rejejected to the sink/to
Measurement in Production System: This unit explain the performance measurement in an organisation. More than just a passive means for assessing what has already occurred, the
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
Question The three freight cars are rolling along the horizontal track with the velocities shown in the Figure. After the impacts occur the three cars become coupled together a
Q. Welded Pressure Joint Requirements? The welded pressure joint requirements should be selected to be suitable to the need; however, the following shall apply: Welded joint
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