Keyhole Question

tjung789 · Jul 5, 2013

I have attached a question.
Can someone tell me why the answer is NOT A?

Everything seems to be able to slide through.

jetti · Jul 5, 2013

tjung789 said:
I have attached a question.
Can someone tell me why the answer is NOT A?

Everything seems to be able to slide through.

I think there's a notch missing in the bottom section.

jetti · Jul 5, 2013

jetti said:
I think there's a notch missing in the bottom section.

Make that notches missing in the top and bottom pieces. Sneaky...

tjung789 · Jul 5, 2013

jetti said:
Make that notches missing in the top and bottom pieces. Sneaky...

do there need to be notches? Couldn't it still slide through??

gn4 · Jul 5, 2013

tjung789 said:
do there need to be notches? Couldn't it still slide through??

It can, but it needs to fit like a key from what I heard. what did the correct answer look like?

cmF · Jul 5, 2013

gn4 said:
It can, but it needs to fit like a key from what I heard. what did the correct answer look like?

Right. Every edge and surface on the key needs to touch every edge and surface on the keyhole.

DrRoyal Pains · Jul 5, 2013

Its the top/bottom view. Theres also a notch missing at the top as well. Don't miss that.

tjung789 · Jul 5, 2013

cmF said:
Right. Every edge and surface on the key needs to touch every edge and surface on the keyhole.

Thank you. Hopefully that will help me

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