Sunday Morning Quiz

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Sunday Morning Quiz

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  • #788958
    Michael Gilligan
    Participant
      @michaelgilligan61133

      I already know … so this is just for your amusement:

      Where would you find a pressure gauge with calibrations like this ?

      MichaelG.

      .

      IMG_0679

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      #788961
      noel shelley
      Participant
        @noelshelley55608

        Anything where increased suction or depression was a problem ! I fitted one to the fuel supply of my car (for reasons I won’t bore you with) to indicate when the fuel filter was restricting fuel flow and needed changing.

        Refrigeration or a heat pump ? Noel.

        #788962
        Robert Atkinson 2
        Participant
          @robertatkinson2

          I don’t know. Can’t think of anything where a differential of more than minus 5 PSI is “safe” compared to zero differental. It it was mmH2O it might have been a fume cabinet or similar where you don’t want something leaking out…

          Robert.

          #788964
          SillyOldDuffer
          Moderator
            @sillyoldduffer

            Chemical process maybe?  Certain sensitive substances are made by evaporating solvents in a vacuum.  The vacuum considerably reduces the temperature needed.    If the vacuum failed, the temperature might rise, causing an uncontrolled thermal runaway as the substance decomposed.  Bang!

            Or a vacuum brake: don’t drive off until the vacuum is strong enough to release the brake.  Dangerous to the machine, not humans.

            Odd!

            Dave

             

             

            #788965
            Maurice Taylor
            Participant
              @mauricetaylor82093

              Hi, Testing advance and retard on petrol engine also brake bleeding on cars using hand held vacuum pump .Look on eBay .

              Maurice

              #788990
              Martin Connelly
              Participant
                @martinconnelly55370

                How about on those rubber suction devices Tom Cruise uses to climb modern glass faced buildings in Mission Impossible? Loss of suction there would not be a great outcome for the character in the film.

                Martin C

                #789003
                peak4
                Participant
                  @peak4

                  Looks a bit too cheap to be medical; have you had a new windscreen fitted?

                  Bill

                  #789010
                  Michael Gilligan
                  Participant
                    @michaelgilligan61133

                    Martin and Bill are near enough

                    MichaelG.

                    .

                    IMG_0678

                    #789027
                    Ches Green UK
                    Participant
                      @chesgreenuk

                      That was good fun.

                      I wouldn’t complain if it became a regular Sunday quiz 🙂

                      Ches

                      #789030
                      jimmy b
                      Participant
                        @jimmyb

                        Nice one.

                         

                        I did guess vacuum, but couldn’t think of an application.

                         

                        I agree with Ches, this would make a good regular feature.

                         

                        Thank you.

                         

                        jimb

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