Mechanical Aptitude Test
10-26-2007, 12:58 PM
#20
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88 too. I'm sure I missed some of the pulley questions cause I didn't want to sit there and play finger conductor.
10-26-2007, 03:51 PM
#21
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96% -- I screwed up the one with the compound pulleys (#19) because I got lazy and guessed. #7 I think was a bit of a trick question -- I was stuck in "What does this diagram do" when they were looking for "What are the semantically correct labels for these types of drives". More a test of book learning than aptitude, IMHO. Or is it sour grapes? 
How many of you answered the same as I did in #7?
How many of you answered the same as I did in #7?
10-26-2007, 05:37 PM
#24
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Trick question but I still should have got it right.
10-26-2007, 05:46 PM
#25
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84%...no excuses. Some stuff I just didn't know and there were two that I answered wrong and couldn't change.
...and I'm the guy helping others fix their cars and coming up with new ideas...yea...be afraid here too! lol
...and I'm the guy helping others fix their cars and coming up with new ideas...yea...be afraid here too! lol
10-26-2007, 06:02 PM
#28
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Well, as a physics purist, I"ll tell you the answer:
There is no such thing as 'vacuum'. There is only rates and levels of pressure. Vacuum is a relative concept because we live on a planet with a pressurized atmosphere. so, when you suck on a straw, or when you increase the volume of a cylinder with the valve open, you don't create a 'vacuum' per-se, you change the ratio of pressures, allowing the outside pressure to work like Boyle's law says is should.
Remember, when you increase the volume of the cylinder by moving the piston down, you decrease the volume of the crankcase proportionally(8 different rates at once on a V8).
There is no such thing as 'vacuum'. There is only rates and levels of pressure. Vacuum is a relative concept because we live on a planet with a pressurized atmosphere. so, when you suck on a straw, or when you increase the volume of a cylinder with the valve open, you don't create a 'vacuum' per-se, you change the ratio of pressures, allowing the outside pressure to work like Boyle's law says is should.
Remember, when you increase the volume of the cylinder by moving the piston down, you decrease the volume of the crankcase proportionally(8 different rates at once on a V8).
10-26-2007, 08:15 PM
#29
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72%. I failed. And I am not surprised.
