Mechanical Aptitude Test - Page 3

uranium_death · 03-10-2007, 05:36 PM

66%

Never read about engineering, never had any interest and will never succeed.

But still, that's not bad for somebody without a clue. I'll take that. Now to review my responses

uranium_death · 03-10-2007, 05:49 PM

I also never did physics or chemistry.

I did better at the end than the beginning. I just employed common sense.

Clearly, I have little

bingoTE50 · 03-10-2007, 09:24 PM

80% 400pts , pretty happy with that. Took about 5 minutes .

Now if a electric train heading into a northerly which was will the smoke blow?

MITCHAY · 03-10-2007, 09:26 PM

66%

I did physics at college as well. Spose a few years and crap load of beer make you forget

:

Got all but one of the electrics questions right. Have NFI what a planetary gear is so not suprised I didn't get one! yelrotflm

Meh I pay others to know this stuff because I could not care in the least bit :P

uranium_death · 03-10-2007, 09:51 PM

Quote:

Originally Posted by bingoTE50

80% 400pts , pretty happy with that. Took about 5 minutes .

Now if a electric train heading into a northerly which was will the smoke blow?

For heaven's sake, this isn't grade 3.

It's an electric train, it does not release smoke, unless it slams on its breaks, but there would probably be sparks.

Also take into account the source of energy. If the source if from fossil fuels, then clearly smoke will be released into the atmosphere. Throw up a windsock and see for yourself. There is no simple answer.

svo347 · 03-10-2007, 10:02 PM

87 but hey (john) superpursuit83 im with you buddy

DoreSlamR · 03-10-2007, 10:35 PM

Woo 82%, may have rushed it a bit, i knew the 12 volt/24 volt one pretty well! found out about that the hard way (melted jumper leads anyone?)

rodderz · 03-10-2007, 11:17 PM

Quote:

Originally Posted by uranium_death

For heaven's sake, this isn't grade 3.

It's an electric train, it does not release smoke, unless it slams on its breaks, but there would probably be sparks.

For heaven's sake, did you really think he was being serious?

What weighs more, a 1000kg of bricks or a tonne of feathers?

uranium_death · 03-10-2007, 11:39 PM

Quote:

Originally Posted by rodderz

For heaven's sake, did you really think he was being serious?

What weighs more, a 1000kg of bricks or a tonne of feathers?

Yeah...but people do get fooled by those questions, then those people get laughed at or made a mockery of.

With the bricks/feathers question, my mother said that a ton of bricks weighs more than a ton of feathers.

I would take the ton of feathers...who needs money when you've got feathers? (Simpsons reference).

A ton of bricks doesn't go far, unless you smash your brother's face with one, in which case, it's a brick well used.

Fantome · 03-10-2007, 11:50 PM

My 13 year old daughter did the test and got 84%. Smart girl!

nb_351 · 03-10-2007, 11:58 PM

94%...
i dont agree with a couple of those answers...
but theres no use complaining, noone will listen lol

BlackLS · 04-10-2007, 11:36 AM

Quote:

Originally Posted by rodderz

For heaven's sake, did you really think he was being serious?

What weighs more, a 1000kg of bricks or a tonne of feathers?

If its a cubic tonne than the bricks will be heavier :P

flappist · 04-10-2007, 11:44 AM

Which weighs more, an ounce of Gold or an ounce of Aluminium?

klawsterfobik · 04-10-2007, 11:52 AM

78%... I got all the gearing questions right, except the planetary gear, but i didn't know what any of the components were called.

Aced the electrical stuff, so I should have though, I've just spent 6 months doing a Pre Apprenticeship course in it... (anyone offering apprenticeships?

)

I sucked on the weights and pulleys though, I just guessed at them all.

FlipXW · 04-10-2007, 12:15 PM

96% good revision for my hsc engineering exam too. Damn water flowing through the pipe question lol.

xr8edute · 04-10-2007, 01:22 PM

88%. I guess being self employed small motor mechanic HAS tought me something. ha ha

Guess i should slow down and take a bit more time to read the questions properly.

Cheers

Travis

RAREV8 · 04-10-2007, 01:43 PM

68%.......I'm actually staggered! i have never passed a physics exam in my life! However, there is a difference when you can apply knowledge- it makes more sense and is more motivating....room for improvement but I did it in the middle of a busy day in 12 mins so I am happy!

xbgs351 · 04-10-2007, 03:38 PM

100%

As mentioned before, Q26 will see two lamps light up fully and one partially, Q31 is wrong, Q48 is being pedantic as atmospheric pressure can only enter the cylinder if a partial vacuum has been caused by the piston travelling down. Some definitions of suction are along the lines of "a force over an area produced by a pressure difference", so saying that suction is incorrect is a bit harsh.

In addition I feel Q38 should be a bit more specific as far as the orientation used for determining what is an opposite direction i.e. is it looking from the left or looking at each fan front on.

fmc351 · 04-10-2007, 03:45 PM

Quote:

Originally Posted by Powdered Toast Man

No such thing as "suction" just high and low pressure. The high pressure forces it's way into the low pressure.

Quote:

Originally Posted by Walkinshaw

When the piston moves down the cylinder, what happens? The pressure inside the cylinder is lower than atmospheric. So the "weight" of the atmosphere above the cylinder forces air inside the cylinder.

So basically its because of this, damn this will show peoples age.

So my take now is that it is very technical difference, but scientifically correct. Tests usually require the most correct answer to demonstrate the extent of knowledge, rather than one correct option among 3 pretty well wrong ones. Most good multiple choice tests will give you two choices that are close, but only one is technically correct.

superpursuit83 · 04-10-2007, 05:31 PM

Quote:

Originally Posted by xbgs351

100%

As mentioned before, Q26 will see two lamps light up fully and one partially, Q31 is wrong, Q48 is being pedantic as atmospheric pressure can only enter the cylinder if a partial vacuum has been caused by the piston travelling down. Some definitions of suction are along the lines of "a force over an area produced by a pressure difference", so saying that suction is incorrect is a bit harsh.

In addition I feel Q38 should be a bit more specific as far as the orientation used for determining what is an opposite direction i.e. is it looking from the left or looking at each fan front on.

Isn't that what a vaccum does, creat a low pressure in the hose side of the fan. And air rushes in...
Too scientific for this points and plugs man

. It sucks I tell ya!

blownba · 04-10-2007, 05:35 PM

88% too. I did the same didn't read a couple properly.

ReVd_uP · 04-10-2007, 05:43 PM

50 questions?, im not doin that unless im paid to, im already a mechanic

**Mechan1k** · 04-10-2007, 06:15 PM

Quote:

Originally Posted by Casper

72%. Pulleys and electrical stuff kill me.

Hahahaha ... that was the same for me as well.
And the same score too

3vXT · 04-10-2007, 06:46 PM

I got 78%, better than i was expecting

Yaw · 04-10-2007, 07:20 PM

92% screwed up on the fans.

[Tonko] · 04-10-2007, 08:03 PM

lol 56% Worst on AFF?
i got frustrated with a few of them and had a stab...
Fun though. Shows how rusty you can get 2 years out of school...

BadMac · 04-10-2007, 09:16 PM

Quote:

Originally Posted by xbgs351

100%

As mentioned before, Q26 will see two lamps light up fully and one partially, Q31 is wrong, Q48 is being pedantic as atmospheric pressure can only enter the cylinder if a partial vacuum has been caused by the piston travelling down. Some definitions of suction are along the lines of "a force over an area produced by a pressure difference", so saying that suction is incorrect is a bit harsh.

In addition I feel Q38 should be a bit more specific as far as the orientation used for determining what is an opposite direction i.e. is it looking from the left or looking at each fan front on.

100% agree with you.
Q26 As I stated before
Q31 is 1/5 of 300KG = 60 (not an option), weight is centred 1 segment to the left and other is centred 5 to the right. If both were at the end of their respective sides 50KG would be correct.
Q38, I had to think about it when I did it for the same reason. Had to think about what answer they would want as you can't prove them wrong.
Q48 pedantic and I can show a few definitions which would assert this is wrong (I can also show some which say its right), so badily worded question. 2 equally right answers.

Van D · 04-10-2007, 09:42 PM

Holy crap I got 78%. I thought i'd failed way worse. I'll try again when i'm not half asleep tomorrow.

Van D · 04-10-2007, 09:46 PM

Quote:

Originally Posted by BadMac

Q48 pedantic and I can show a few definitions which would assert this is wrong (I can also show some which say its right), so badily worded question. 2 equally right answers.

Thank jeebus for that. I thought there were two answers that could be right.

Van D · 04-10-2007, 09:51 PM

Quote:

Originally Posted by PhilXR8

96% good revision for my hsc engineering exam too. Damn water flowing through the pipe question lol.

What was the answer to that? I didn't check it. I guessed A as the pressure build up from the pipe getting smaller/narrower wouldn't allow enough flow and it'd need to escape somewhere. First thought was B because the pipe was narrower and thought there'd be more pressure/speed.. But went with A... Wow i'm tired that probably didn't make sense.