Polystyrene often used as a consumable pattern material has a relative density of A)20 to 25 kg/m³ B)2240 to 2500 kg/m³ C)120 to 125 kg/m³ D)1120 to 1125 kg/m³

Name: Polystyrene often used as a consumable pattern material has a relative density of A)20 to 25 kg/m 3 B)2240 to 2500 kg/m 3 C)120 to 125 kg/m 3 D)1120 to 1125 kg/m 3
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Quizplus · Accepted Answer

Polystyrene, commonly used for packaging and insulation, has a low relative density, typically in the range of 20 to 25 kg/m^3, making it lightweight and buoyant.

Polystyrene Often Used as a Consumable Pattern Material Has a Relative