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Electrical module one papers

Computer Science

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Huu hapa utofautishaji kati ya aina za nyaya ulizouliza:

2. (a) Tofautisha kati ya aina zifuatazo za nyaya:

  • P.V.C. (Polyvinyl Chloride) Cable:

    • Hizi ni nyaya ambazo zimetengenezwa kwa kutumia Polyvinyl Chloride kama nyenzo ya kuhami (insulation) na mara nyingi pia kama ganda la nje (sheath).
    • Ni nyepesi, rahisi kunyumbulika, na zinastahimili unyevu, kemikali, na joto la wastani.
    • Hutumika sana kwa wiring ya ndani ya majengo, taa, na vifaa vya nyumbani.
  • T.R.S. (Tough Rubber Sheathed) Cable:

    • Hizi ni nyaya ambazo zimetengenezwa kwa kutumia mpira mgumu kama nyenzo ya kuhami na ganda la nje.
    • Zina uimara mkubwa dhidi ya uharibifu wa kimwili, abrasion, na hali mbaya ya hewa.
    • Hutumika zaidi katika mazingira magumu kama vile viwandani, nje ya majengo, au ambapo kuna hatari ya uharibifu wa kimwili.

Tofauti kuu ni kwamba P.V.C. hutumia plastiki (PVC) kwa insulation na sheath, wakati T.R.S. hutumia mpira mgumu, na hivyo kuipa T.R.S. uimara zaidi wa kimwili.

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