http://www.forddoctorsdts.com/quizze...alAptitude.php

We managed 88% on our first go......

 

96% first time:

 

got bored at question 7

 

I got 88% as well, although that should have been 90 as one was a mouse error, I meant to click one box and clicked the other, LOL

 

Any thoughts on question 48?

It's caused some controversey.....

 

I dont see why it would cause controversy, without any doubt at all the answer they have said is correct is exactly correct.

The piston drops, the pressure in the cylinder decreases and therefore the pressure from the atmosphere pushes air into the cylinder.

Couldnt be more straightforward IMHO, its just basic Physics.

 

PS

Of the ones I got wrong, the only one that when I read back I dont go "oops, should have read it properly not answered them all really quick by browse reading" is 7

To me that picture of C, is reverse, one gear is turning the other one backwards.

In fact TBH A and B are also reverse gears IMHO, just ones with a ratio as well as a change of direction.

 

I have an office full of fridge engineers here all agruing that it's suction...

 

Well all of them would have failed GCSE physics then

Given that they are fridge engineers in particular, im amazed that they would make that mistake, as pressure is like HEAT, it is only viewed as moving from a high state to a low state.

Ie you dont add coldness to an item, you take away heat from it, likewise with pressure and airflow, if it moves from B to A then you dont say it gets sucked in form A to B, it gets blown from B to A.

 

I think what you are getting at is the pressure drop caused by the exhaust gas leaving the cylinser and the air sucked in on valve overlap?

 

Oh just realised you are aguing over what suction is.

 

no, they arent that clever, they are just saying the piston is causing suction I suspect.

 

Indeed

 

I got 90% and couldn't see my right / wrong answers?

I said suction though

What were the options on that one?

 

No, not being clever, just I had 4 of them with me this morning and 2 of them were arguing its the piston dropping that causes suction which pulls air into the engine....

 

the piston dropping causes a low pressure, atmosphere then pushes air in.

 

no, the piston dropping causes a drop of pressure, which causes a pressure differential which results in the atmospere pushing air into the cylinder.

its semantics from an english point of view, but physics is very fixed on its opinion of what happens.

 

i got 62% Which seeing as im Not technical in the least i didnt think was to bad

 

64% I suck

 

66%

Not bad for a girl.

 

Chaps....I agree, and I got the fooking question right lol, they were berating me but I do remember it from a physics perspective, from my school days.....but when you get my age though remembering actually being at school is difficult....

 

Or do you blow?

Like the air into a piston?

Either way

I got 72% which is why I pay greasemonkeys to know this stuff. My mind is on higher things.

 

I got 58%

 

70% 370was thescore

 

Got 84% I am not really that mechanically minded.

Mind you, most of it seems to be basic physics rather than mechanical knowledge per say.

 

78% and thats the first time in ages ive used my brain

 

94%, fucked a couple of them by not realising theyd changed the masses in the drawings

In physics, suction and centrifugal force do not exist

 

Its the piston that creates a change in volume.

It is a pressure difference that fills the cylinder.

 

92% good quiz though ian

thought question 7 was confusing as per chip

made a wrong click on 17 (25 kg instead of 50)

couldn't be arsed to think about question 44 properly by the time i got there

couldn't see how getting 3 wrong answers would give 92%, but as there is 2 wrong on Q7 it must count as 4% - but it's not possible to get only 1 out of 4 wrong

 

72%, im chuffed as i couldnt tell you one end of a screwdriver from another!

 

answered all the questions and the fuckers crashed on me and sent back to question 7 with an empty page

 

80%.. not bad for a retarded 18 year old

 

94%, got 3 wrong...ironically 3 I thought were easy obviously not.

 

82%

 

been on british rally ian.

 

Saw it on there and thought it was worth sharing......

Last time I did one like this was about 15 years ago...lol...with pen and paper.....

 

the thread on there is rather different to here ian,some real clever fookers in the rallying world.