98%, got the water going up the pipes one wrong
98%, got the water going up the pipes one wrong
96%.Got 44 and 48 wrong.
86%, not bad as I gave up engineering when I left uni 12 years ago.
got 80% should have done better
96% here
64%
And do I care? Nope
I'm concerned with the modern education system now, we covered pulleys and fulcrums and general stuff in the final year of junior schoolOriginally Posted by R.Sendout
100%
But I would be extremely worried if I didn't, I am an engineer and those are 1st year city & guilds level questions
94% dead chuffed since Ive never done real engineering or mechanics, just what ive picked up from physics at schools and being a gas man
Got the pouring cans one wrong, the 2 higher tubes with liquid in them and one pully one wrong
got 86% here, the one that caught me out mainly was the one about the piston not actually causing suction to draw air into the cylinder (it being atmospheric pressure pushing it in)
100% - fortunately, otherwise I'd have to have stern words with myself.
Q16 is wrong, as the ropes aren't vertical (so the rope tension is slightly higher)
Q20 is wrong - it's neither stable nor unstable, but neutral (stable would return to centre...)
88%
Got 3,7, 11, 19, 38 & 48 Wrong.
electronics ones were easy. not so good with the gears and pulley really.
76% If there was a back button I would be OK as I knew some were wrong answers as I was clicking submit.
82% not that good as im a fitternoticed two that i new but clicked wrong one
88% I got last night, not great, wasn't paying attention, got ones wrong I knew the answer to
Wow! And I nearly didn't do it
Not bad for an IT dude.
Well I managed 80% so I'm pretty pleased with myself
SXOC Member #62 SXOC Car Gone PS4 - AFKAN Pessimists are people without dreams. dhún an doras ar do bhealach amach... Wii - 2031 7909 3288 5367
82% for me
This is what i always thought too...
Before the piston draws down you have atmospheric pressure in the chamber and outside of it. When the piston drops down the pressure inside the chamber reduces, so the atmospheric pressure forces the mixture in to the chamber.
I understood as soon as it said it was the wrong answer, I just picked the most obvious answer but the atmospheric pressure one is the most logical, and makes sense as soon as you think about it.
to put it another way, imagine a glass bottle in a vacuum, put a lid on it so there is "no" air inside. then take the bottle out of the vacuum and place it in a normal room (ideally there would be a small amount of smoke or something so you can see the air movement) if you removed the lid the bottle would instantly fill with air / smoke as at sea level atmospheric pressure is 1 bar. we don't take it into account as non-engineers as we don't notice it, because it's always been there and in most situations it can be ignored.
but as soon as you create a space that's not occupied by air (say, by moving a piston in an engine) the air will rush to fill this gap as there's constant pressure forcing it everywhere.
if you did the piston suction thing in a low pressure environment (almost a vacuum) then our original answers would have been more likely, but still pretty much incorrect.
yay 100%
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