Polyethylene, polypropylene and polyvinyl chloride (PVC) are the main example of thermosetting polymers.

Related MCQs

• Which of the following types of molecular structure present in thermosetting polymers?
• Polyurethanes plastics can be made in flexible foams even after belonging to thermosetting polymers.
• Thermosetting plastics are generally used for making products of high strength and rigidness.
• Thermosetting plastics can be used for manufacturing of windshield for airplane.
• Thermosetting materials are the polymeric materials which get soften on heating with or without pressure.
• Thermosetting plastics like epoxies can be used for filament wound rocket motor casings in missiles by combining with glass fibers.
• Which of the following is the main advantage of using the electromagnetic forming process?
• volts, I = 200 A, and the cross-sectional area of the weld bead is 30 mm2. Estimate the welding speed if the workpiece and electrode are made of (a) aluminum, (b) carbon steel, and (c) titanium. Use an efficiency of 75%.
• Consider a situation in which a welding operation is being performed with V = 20 volts, I = 200 A, and the cross-sectional area of the weld bead is 30 mm2. Estimate the welding speed if the workpiece and electrode are made of (a) aluminum, (b) carbon steel, and (c) titanium. Use an efficiency of 75%.
• Co2 moulding is mainly used for the increase in strength and hardness of the moulds and cores.