key hole (pic included)

[joonkimdds]

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what's the answer?
I am debating between A and E.

 

[NuckingFutz]

Hmm, I think i'd go with A. For E, the projection looks too narrow if viewed from the sides...

Additional input would be great 😛

 

[Lazerous]

That's a tough one. Initially I wanted to say A.....but....E also looks plausible. Hmmm...

 

[acupofchai]

I think its A. In E, the base is not long enough.

 

[Lazerous]

I think its A. In E, the base is not long enough.

All your base are belong to us!

 

[jimber03]

So... B, C, D are obviously wrong...

That leaves A and E....

Let's look at A... and imagine looking in on it from the top... The inside square hole is the same size, but the overall perimeter of the objects it needs to be smaller to fit in keyhole A.

Now let's look at E... Rotate the object in your mind, so that the semi circle part of the object is facing you.... and from that point of view, it should be able to fit in Keyhole E.

So..... with that.... I'll got with E... but then again I can be wrong.... =)

This from Cracks PAT? Just finished with practice test 6 today.

 

[joonkimdds]

Nuckingfutz// is that a rabbit?

 

[DRHOYA]

I would say the answer is A. E is wrong because if you rotate the image 90 degrees and look from the side, you'll notice the "half-moons" are the same height as the top hollow square. Also, the base of E is out of proportion to the real figure. A is representing an aerial view, and appears to have equal dimensions. Hope that helps. 👍

 

[IDoWhatIWant]

I love only Kaplan keyholes.

 

[dent2009]

The answer is A. In E, the height of the top and bottom bases is unequal when in fact, they should be the same height. Anymore? I love solving keyhole problems.

 

[Contach]

The answer is A. In E, the height of the top and bottom bases is unequal when in fact, they should be the same height. Anymore? I love solving keyhole problems.

you seem really sure of yourself. My ruler cannot tell a difference between the top and bottom bases in E... i'm surprised you can.

 

[Contach]

I would say the answer is A. E is wrong because if you rotate the image 90 degrees and look from the side, you'll notice the "half-moons" are the same height as the top hollow square. Also, the base of E is out of proportion to the real figure. A is representing an aerial view, and appears to have equal dimensions. Hope that helps. 👍

what does it matter where the half moons are.. we aren't looking at it from that angle.

 

[joonkimdds]

I would say the answer is A. E is wrong because if you rotate the image 90 degrees and look from the side, you'll notice the "half-moons" are the same height as the top hollow square.

and that's why choice E should be the answer.

you seem really sure of yourself. My ruler cannot tell a difference between the top and bottom bases in E... i'm surprised you can.

my ruler agrees with you.

 

[notanormalgent]

A and E are BOTH possibilities, however, A is the better answer because it is confirms all visible angles. E is not the better choice because we do not know what it looks like if you rotated it 90 degrees.

 

[DDSguyLA]

its A or B... 😀

 

[joonkimdds]

its A or B... 😀

Actually, it's C or D😱

 

[futuredent22]

two half-moon shapes do come into play. i remember getting this wrong on CDP because I put E as the answer. I think the reason E is wrong is because those half-moons actually rise a bit higher than the top of the square. so E is wrong because it doesn't account for the very top of the half-moon.

i don't like this question at all

 

[NuckingFutz]

Nuckingfutz// is that a rabbit?

Supposedly

 

[DRHOYA]

The halfmoons do come into play as stated above. If you view the image from that side, it no longer fits through teh key hole and voids choice E. Even more so, choice E is voided because the dimensions of the base and top are not accurate. Choice A is an aerial view.

 

[joonkimdds]

The halfmoons do come into play as stated above. If you view the image from that side, it no longer fits through teh key hole and voids choice E. Even more so, choice E is voided because the dimensions of the base and top are not accurate. Choice A is an aerial view.

I just used an actual ruler(after zooming in).
You have been saying that E is out of proportion but both A and E have the exact same length of bottom base(horizontally) and top and bottom square have exact same height(unlike dent2009 said), and it has the exact same proportion in terms of length compared to the given picture.

And I don't understand how the halfmoon comes into play. You do know that the front view is different from the side view, right?

 

[Albuterol]

so what is the correct answer?

 

[futuredent22]

And I don't understand how the halfmoon comes into play. You do know that the front view is different from the side view, right?

right. but the arch of the halfmoon is higher than the top of the square piece. so E is incorrect because it doesn't account for the top of the arch.

its obviously very hard to see that. im just basing what im saying on the answer that CDP gives. go back and look at their explanation, it shows how the correct front view accounts for the arch of the halfmoon

 

[dentworld]

I would say the answer is A. E is wrong because if you rotate the image 90 degrees and look from the side, you'll notice the "half-moons" are the same height as the top hollow square. Also, the base of E is out of proportion to the real figure. A is representing an aerial view, and appears to have equal dimensions. Hope that helps. 👍

I would go with A too

 

[joonkimdds]

right. but the arch of the halfmoon is higher than the top of the square piece. so E is incorrect because it doesn't account for the top of the arch.

its obviously very hard to see that.

whwh whwhwhwhwhwhat~~!!!!! 😱

 

[dent2009]

you seem really sure of yourself. My ruler cannot tell a difference between the top and bottom bases in E... i'm surprised you can.

Really? Then you should forget about becoming a dentist. 😛 Measure very carefully...the bottom base is probably 0.1 mm higher than the top base. Yeah that sounds negligible, but in dentistry it can be huge.

Where is this problem from? Kaplan? Why doesn't someone contact them or whoever it's from an demand an explanation.

 

[DRHOYA]

Bottom line, the answer cannot be E due to the half moons and the fact concerning the dimensions. You cannot use a ruler on the real DAT btw. Choice A is a simple aerial view or the object. Thats it.

 

[whoispittsnogle]

i Would Say The Answer Is A. E Is Wrong Because If You Rotate The Image 90 Degrees And Look From The Side, you'll Notice The "half-moons" Are The Same Height As The Top Hollow Square. Also, The Base Of E Is Out Of Proportion To The Real Figure. A Is Representing An Aerial View, And Appears To Have Equal Dimensions. Hope That Helps.

the Answer Is A. In E, The height Of The Top And Bottom Bases Is Unequal When In Fact, They Should Be The Same Height. Anymore? I Love Solving Keyhole Problems.

F A I L

 

[prydA]

the half-moon thingies aren't flush with the top

 

[doc3232]

This question is stupid...
it can go either way.
This thread is going no where.
And for those saying you should take into the account the half moons, they don't go high enough and we can look at the structure any way we want, any angle we want as long as it fits.

 

[jimber03]

what is the answer!?

its driving me nuts... haha

 

[Gbrando2]

I vote E. Anyone else think the square hole in the middle of the figure seems to gradually slope in, making the square hole smaller than in choice A? And IMO the half-moons look totally flush...

 

[HurricaneKatt]

I vote A

 

[AmoebaNick]

A

 

[CUDental]

The obvious answer is:

F) Whoever made this question is a jack*ss cyborg

 

[futuredent22]

this is from crack dat pat. the answer is A. the reason its not E is because the arch of the halfmoons goes higher than the top of the square, so choice E should show the arch at the top.

thats what ive been saying, but i guess I didn't make it clear that i was basing it off the answer and explanation provided by crack dat PAT.

 

[DRHOYA]

The answer is A!!! PERIOD! It is the aerial view.

 

[joonkimdds]

Really? Then you should forget about becoming a dentist. 😛 Measure very carefully...the bottom base is probably 0.1 mm higher than the top base. Yeah that sounds negligible, but in dentistry it can be huge.

I zoomed in with my 19inch monitor(1440x900 resolution) and both top and bottom had exact 165 PIXELS!!!

 

[Gbrando2]

No way those half-moons go above the top of that thing

 

[dent2009]

I zoomed in with my 19inch monitor(1440x900 resolution) and both top and bottom had exact 165 PIXELS!!!

Haha! Here someone was talking about using a ruler on the exam. If only we had the ultra-zoom-then-count-the-pixels technology on the exam...Hey, but couldn't you have been off by a couple of pixels? 😛

 

[joonkimdds]

No way those half-moons go above the top of that thing

I seriously don't know how those half moons go above the top of that thing either.

Haha! Here someone was talking about using a ruler on the exam. If only we had the ultra-zoom-then-count-the-pixels technology on the exam...Hey, but couldn't you have been off by a couple of pixels? 😛

sorry master chief~ but u will get that kind of technology when u become a dentist.

 

[Gbrando2]

Word

 

[ak47]

I zoomed in with my 19inch monitor(1440x900 resolution) and both top and bottom had exact 165 PIXELS!!!

so hot right now, joonkim. hahaa

 

[lemoncurry]

I say it is E. I don't think the sides of the hole in A are thick enough to accomodate the structure. One thing I do know for sure is that the half moons are not higher than the other walls. While A might work, I have yet to see evidence that E can be eliminated.

 

[joonkimdds]

I say it is E. I don't think the sides of the hole in A are thick enough to accomodate the structure. One thing I do know for sure is that the half moons are not higher than the other walls. While A might work, I have yet to see evidence that E can be eliminated.

I just measured it and they are thick enough(the choice A).
I want to post the picture of what I measured(pixels) but then i am sure ppl will be like this guy is a freak who measures every pixel on his PAT so I won't post it here unless u want me to 😀

 

[DRHOYA]

Ok. To the OP, what question and test # from CDP is this from? I have CDP, and would like to see what the real answer is, so everyone can know. Or, if anyone knows the real answer, just post it, and put this to rest.

 

[sang86]

the answer to this question is E.

 

[Contach]

Really? Then you should forget about becoming a dentist. 😛 Measure very carefully...the bottom base is probably 0.1 mm higher than the top base. Yeah that sounds negligible, but in dentistry it can be huge.

Where is this problem from? Kaplan? Why doesn't someone contact them or whoever it's from an demand an explanation.

looks like you are the one who should apply for medical school. Not me.

 

[Contach]

Haha! Here someone was talking about using a ruler on the exam. If only we had the ultra-zoom-then-count-the-pixels technology on the exam...Hey, but couldn't you have been off by a couple of pixels? 😛

lol @ joomkins, you made my night.

 

[notanormalgent]

I don't understand what the hell is so hard about this. It's choose the BEST ANSWER. And that is clearly A!

We don't know if the arches would be on E if it was rotated 90 degrees. Can this thread be closed now?