Firemen uniform is coated with a plastic that is fire resistant. Identify the plastic from the given options.
(a) Teflon
(b) melamine
(c)PET
(d) Polyester
Answers
Answer:
(a) Melamine
Explanation:
Melamine is a versatile material. It resist fire and can tolerate heat better than
other plastics. It is used for making floor tiles, kitchenware and fabrics which resist fire.
Answer:
(b) Melamine
Explanation:
Explanation for correct option:
Explanation for correct option:(b) Melamine
Melamine is a thermosetting plastic. It resists the heat and doesn't catch fire. It can tolerate heat better than other type of plastics. It's used in the firefighters' uniforms for the protection of their body from heat hazards. It's also used for making bottom penstocks, kitchenware, in planes and motorcars to help the spread of fire.
Explanation for incorrect options:
Explanation for incorrect options:(a) Teflon
The Teflon will ultimately start burning, and when it does it emits a veritably poisonous gas. You do not want to be anywhere around a Teflon visage that has been left on a burner too long. So, it is not used in the firemen uniforms.
(c) PET
PET( also shortened PETE) is short for polyethylene terephthalate, the chemical name for polyester. PET is a clear, strong, and featherlight plastic that's extensively used for packaging foods and potables, especially convenience- sized soft drinks, authorities and water. PET can fluently enkindle and burn in air. So, it is not used in the firemen uniforms.
(d) Polyester
Nylon, polyester and tempera tend to be slow to enkindle but formerly burned , severe melting and sopping occurs. hair is comparatively honey-retardant.However, it generally has a low burning rate and may tone- extinguish, If burned . Glass filaments and modacrylic are nearly honey- resistant. So, it is not used in the firemen uniforms.
Therefore, option (b) is correct.
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