Sunday Morning Quiz

[Michael GilliganParticipant @michaelgilligan61133]

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

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

MichaelG.

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[noel shelleyParticipant @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.

[Robert Atkinson 2Participant @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.

[SillyOldDufferModerator @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

 

 

[Maurice TaylorParticipant @mauricetaylor82093]

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

Maurice

[Martin ConnellyParticipant @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

[peak4Participant @peak4]

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

Bill

[Michael GilliganParticipant @michaelgilligan61133]

Martin and Bill are near enough

MichaelG.

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[Ches Green UKParticipant @chesgreenuk]

That was good fun.

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

Ches

[jimmy bParticipant @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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