MACHINE DESIGN: PAST BOARD EXAM PROBLEMS CHAPTER 1 - INTRODUCTION (PART 1)

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  • Опубліковано 28 лис 2024

КОМЕНТАРІ • 37

  • @derive9274
    @derive9274  3 роки тому +15

    Correction for #3
    The answer should be letter C, n = 5
    I used Force with a value of 55 tons instead of 55,000 lbs.
    Thank you! 😁

    • @merkov8715
      @merkov8715 Рік тому +1

      Based on your explanation, 6 dapat ang sagot. If we use 5, the shear stress will be over 50ksi, unless isama natin yung butal..

    • @Engr.S-Jay29
      @Engr.S-Jay29 10 місяців тому

      55 or 55000 same padin, 2.56 yung sagot.. unless use 1 ton=2000 lbs then its 5.12=6?

    • @kentrabino6612
      @kentrabino6612 10 місяців тому

      Anong tama, 5 or 6 engr?

    • @judielgabud8074
      @judielgabud8074 Місяць тому

      @@kentrabino6612 I think 5 yung sagot kasi di naman umabot ng 6 yung butas (di natapos ang pagbubutas ng 6th hole) so logical answer would be 5

    • @maxixandi
      @maxixandi 4 дні тому

      in punching holes, dapat tlga malampasan mo ung allowable strength ng material. otherwise hindi ka po makaka butas. ang coversion po ng 55tons po is 110,000pounds, so C is the correct answer.

  • @Behappy-tk9bc
    @Behappy-tk9bc Рік тому

    Maraming salamat po engineer. Engineer na ako ngayon at malaking tulong po ang mga videos po ninyo. Before magstart review nakita ko po itong youtube channel niyo

    • @derive9274
      @derive9274  Рік тому +1

      Wowww maraming salamat at Congrats sayo Engr!

  • @ramonjrdolarlazaga1436
    @ramonjrdolarlazaga1436 2 роки тому +1

    YOU DESERVE A MILLION SUBSCRIBERS SIR! YOUR VIDS ARE VERY HELPFUL FOR US NA MAG TA-TAKE NG BOARD EXAMS!

  • @cscxtinecs
    @cscxtinecs 2 роки тому

    mabuhay ka sir, thanks for making these kinds of videos sir, your efforts are greatly appreciated

  • @davejoshuainsic7712
    @davejoshuainsic7712 2 роки тому

    Engineer, maraming salamat po!!!

  • @momochicken123
    @momochicken123 3 роки тому

    Good job on this very helpful!

  • @chintlibre5914
    @chintlibre5914 2 роки тому +1

    Paturo po sir : Determine the inner and outer diameter of the hollow shaft which will replace a 76 mm solid shaft made of the same material. the hollow shaft should be as strong in torsion but it weighs only half as much as the solid ?

  • @odtohanearljol5653
    @odtohanearljol5653 Рік тому

    maraming salamat po 😁

  • @PETERJOHNGALLENTES-r2w
    @PETERJOHNGALLENTES-r2w 11 місяців тому

    Happy New Year Engr. HB time check 11:35PM December 31,2023 HAHAHAAHA sana pumasa sa pre-board sa jan 3

    • @derive9274
      @derive9274  11 місяців тому

      Salamat po! Goodluck po sa exam! Godbless and Happy New Year!

  • @paulskyden5393
    @paulskyden5393 Рік тому

    Hi po. Thank you for this video engineer.. pero ask ko lang po sa #3 bakit po yung force naging 55000? Diba po 1ton= 2000 lbs?. So i think the answer should be 5..instead of 3..or 6.. because it's 5.12

    • @derive9274
      @derive9274  Рік тому

      Yes po, nakalagay po sa correction 😁😅

  • @vencentmanilag628
    @vencentmanilag628 2 роки тому +1

    1 ton = 2000lb?

    • @vencentmanilag628
      @vencentmanilag628 2 роки тому +2

      number 3 problen number of holes= 5.12

    • @n_ne-mn7kf
      @n_ne-mn7kf 2 роки тому

      @@vencentmanilag628 kaya nga po. english tons yung ginamit since naka English unit lahat.

  • @tabalnolarsericg.2732
    @tabalnolarsericg.2732 Рік тому

    nag msg na rin po ako sa messenger nyo po thanks

  • @arielcorbito979
    @arielcorbito979 2 роки тому

    Wala po ba kaung example sa spline at rivets po?

    • @derive9274
      @derive9274  Рік тому

      Meron po, sa topic of keys at topic of rivets and welds

  • @tabalnolarsericg.2732
    @tabalnolarsericg.2732 2 роки тому

    sir ask ko lang paano po nakuha ung 9.549x10^6? pwede po pa send link salamats po

  • @odtohanearljol5653
    @odtohanearljol5653 Рік тому

    maraming salamat po 😁

  • @tabalnolarsericg.2732
    @tabalnolarsericg.2732 Рік тому

    sir ask ko lang paano po nakuha ung 9.549x10^6? pwede po pa send link salamats po

    • @jaysonguemo7303
      @jaysonguemo7303 3 місяці тому

      Factor po yan sa shortcut formula for Power... P=TN/factor .......pag SI unit: factor = 9.549x10^6....pag ENG unit: factor = 63,025

  • @tabalnolarsericg.2732
    @tabalnolarsericg.2732 Рік тому

    sir ask ko lang paano po nakuha ung 9.549x10^6? pwede po pa send link salamats po

    • @3sSHA
      @3sSHA Рік тому

      Derive approximate value po yun sir pag gagamitin niyo po yung formula na P=NT/factor sa SI units po.

    • @tabalnolarsericg.2732
      @tabalnolarsericg.2732 Рік тому

      Mam paano po nakuhaung deriviation po nyan 9.549x10^6? salamat po

    • @roquemarayag232
      @roquemarayag232 Рік тому +1

      @@tabalnolarsericg.2732 naderive po un sa formula na P=(2piTN)/60. Bali naging (60÷2pi)x1M

    • @tabalnolarsericg.2732
      @tabalnolarsericg.2732 Рік тому

      @@roquemarayag232 salamat po