[jambutty]

Originally Posted by entwisi

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

I got 86%


Anyone beat it?

Shame it doesn't tell you which you got wrong.

I got 94%

It does tell you which you got wrong and it even got one answer wrong itself. Well not so much wrong as having two correct answers and only selecting one of them as correct and of course the other one became incorrect.

Q48 – In a naturally aspirated engine, air enters the cylinder because of

Their answer – From atmospheric pressure pushing it in.

I selected from suction caused by the piston going down, which is the same thing. In fact it is probably more correct than their answer.

The piston moves down and tries to create a vacuum which is equalised by the air pushing in from outside. If the piston didn’t move down there would be nowhere for the air to rush in. The piston doesn’t move down because of the air rushing in but because the crankshaft is still rotating after ignition and pulls it down, thus creating a vacuum, which is equalised by the air rushing in.

So my score should have been 96%.